CN106162398B - Antenna, earphone and electronic equipment - Google Patents
Antenna, earphone and electronic equipment Download PDFInfo
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- CN106162398B CN106162398B CN201510150152.4A CN201510150152A CN106162398B CN 106162398 B CN106162398 B CN 106162398B CN 201510150152 A CN201510150152 A CN 201510150152A CN 106162398 B CN106162398 B CN 106162398B
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Abstract
The invention discloses a kind of antenna, earphone and electronic equipments；Antenna includes: cable, plug and high frequency attenuation device；Cable, for transmitting audio signal between the first end and the second end of the cable, the first end support of the cable is connect with the plug, and the second end support of the cable is connect at least one playback device；Plug, for being electrically connected with electronic equipment；The high frequency attenuation device, is set between the first end and the second end of the cable；Cable between the first end of the cable and the setting position of the high frequency attenuation device generates current signal for incuding radiofrequency signal, and transmits current signal generated to the plug；Alternatively, the current signal by the plug feed-in emits radiofrequency signal.Using the present invention, wired earphone can be used as to the antenna of electronic equipment, promote the signal receiving sensitivity of electronic equipment, electronic equipment internal space is saved, realize the lightening of electronic equipment.
Description
Technical field
The present invention relates to the antenna technology of the communications field more particularly to a kind of antennas, earphone and electronic equipment.
Background technique
The form of the electronic equipments such as smart phone to lightening development, this just to the internal space design of electronic equipment especially
It is that more stringent requirements are proposed for Antenna Design, since the inner space of electronic equipment is limited, often to the antenna of electronic equipment
Performance has an adverse effect；While keeping electronic equipment lightening, the performance of electronic device antenna is not sacrificed, the relevant technologies are still
Without effective solution.
Summary of the invention
The embodiment of the present invention provides a kind of antenna, earphone and electronic equipment, wired earphone can be used as electronic equipment
Antenna promotes the signal receiving sensitivity of electronic equipment, realizes the lightening of electronic equipment.
The technical solution of the embodiment of the present invention is achieved in that
The embodiment of the present invention provides a kind of antenna, and the antenna includes: cable, plug and high frequency attenuation device；
Cable, for transmitting audio signal between the first end and the second end of the cable, the of the cable
One end support is connect with the plug, and the second end support of the cable is connect at least one playback device；
Plug, for being electrically connected with electronic equipment；
The high frequency attenuation device, is set between the first end and the second end of the cable；
Cable between the first end of the cable and the setting position of the high frequency attenuation device is for incuding radio frequency
Signal generates current signal, and transmits current signal generated to the plug；Alternatively, passing through the electric current of the plug feed-in
Signal emits radiofrequency signal.
Preferably, the length of the cable between the first end of the cable and the setting position of the high frequency attenuation device
It is corresponding with the target operation frequency range of the antenna.
Preferably, the effective antenna length of the antenna corresponds to the first end and the high frequency attenuation device of the cable
Setting position between length of cable.
Preferably, the quantity at least two of the high frequency attenuation device；
It is provided on the cable and is in the one-to-one switching device of high frequency attenuation device, the switching device
Enable the switching device corresponding high frequency attenuation device when off-state, the switching device bypasses institute when in the conductive state
State the corresponding high frequency attenuation device of switching device.
Preferably, the antenna length of the antenna corresponds to the first end of the cable and the height for being in enabled state
Length of cable between the setting position of frequency attenuation device.
The embodiment of the present invention provides a kind of earphone, and the earphone includes: cable, plug and high frequency attenuation device and at least one
A playback device；
Cable, for transmitting audio signal between the first end and the second end of the cable, the of the cable
One end support is connect with the plug, and the second end support of the cable is connect at least one described playback device；
Plug, for being electrically connected with electronic equipment；
The high frequency attenuation device, is set between the first end and the second end of the cable；
Cable between the first end of the cable and the setting position of the high frequency attenuation device is for incuding radio frequency
Signal generates current signal, and transmits current signal generated to the plug；Alternatively, passing through the electric current of the plug feed-in
Signal emits radiofrequency signal.
Preferably, the length of the cable between the first end of the cable and the setting position of the high frequency attenuation device
It is corresponding with the target operation frequency range of the antenna.
Preferably, the effective antenna length of the antenna corresponds to the first end and the high frequency attenuation device of the cable
Setting position between length of cable.
Preferably, the quantity at least two of the high frequency attenuation device；
It is provided on the cable and is in the one-to-one switching device of high frequency attenuation device, the switching device
Enable the switching device corresponding high frequency attenuation device when off-state, the switching device bypasses institute when in the conductive state
State the corresponding high frequency attenuation device of switching device.
Preferably, the length of cable pair between the first end of the cable and the setting position of the high frequency attenuation device
Answer effective antenna length.
The embodiment of the present invention provides a kind of electronic equipment, and the electronic equipment includes:
Audio-frequency module is connect, to pass through with the plug of external earphone for the audio port by the electronic equipment
Playback device transmission audio signal of the cable of the earphone to the earphone；
Radio-frequency module receives the part of the earphone for connecting by the audio port with the plug of the earphone
The current signal that cable passes through plug institute feed-in；Or by current signal by the audio port, via the plug
It is transmitted to the part cable of the earphone, so that the part cable radiated radio frequency (RF) signal of the earphone；
Wherein, the part cable of the earphone is that the first end of the headset cord declines with the headset cord medium-high frequency
Subtract the cable between the setting position of device.
Preferably, the electronic equipment further include:
Processing module, for controlling the work of switching device corresponding with the high frequency attenuation device in the headset cord
State, so that length of cable and target effective antenna between the first end of the headset cord and targeted high frequency attenuation device
Length is corresponding；
Wherein, it is provided on the cable and the one-to-one switching device of high frequency attenuation device, the derailing switch
The switching device corresponding high frequency attenuation device is enabled when part is in an off state, when the switching device is in the conductive state
Bypass the corresponding high frequency attenuation device of the switching device.
Preferably, the electronic equipment further include:
Built-in antenna module, for receiving and/or emitting radiofrequency signal；
The processing module is also used to detect that the electronic equipment is connect by the audio port with the earphone
When, close the built-in antenna module, with by the part cable reception of the earphone and/or transmitting radiofrequency signal, alternatively, sharp
Radiofrequency signal is received and/or emitted with the built-in antenna module, and utilizes the part cable reception radiofrequency signal of the earphone.
The scene that earphone is used cooperatively is generally required based on electronic equipment in the present embodiment, realize a kind of while supporting ear
The antenna of machine function and antenna function can be saved in electronic equipment in this way and the space of antenna is arranged, be advantageously implemented electronics and set
Standby lightening and miniaturization, reduces the cost for designing antenna in the electronic device, while there is good radiofrequency signal to receive
Volatility.
Detailed description of the invention
Fig. 1 is the structural schematic diagram one of antenna in the embodiment of the present invention；
Fig. 2 is the schematic diagram that antenna is connect with playback device in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram two of antenna in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram one of earphone in the embodiment of the present invention；
Fig. 5 is the structural schematic diagram two of earphone in the embodiment of the present invention；
Fig. 6 is the structural schematic diagram one of electronic equipment in the embodiment of the present invention；
Fig. 7 is the schematic diagram one that electronic equipment is electrically connected with earphone in the embodiment of the present invention；
Fig. 8 is the structural schematic diagram two of electronic equipment in the embodiment of the present invention；
Fig. 9 is the schematic diagram two that electronic equipment is electrically connected with earphone in the embodiment of the present invention；
Figure 10 is the structural schematic diagram three of electronic equipment in the embodiment of the present invention.
Specific embodiment
Invention is further described in detail in the following with reference to the drawings and specific embodiments.
Embodiment one
The present embodiment records a kind of antenna, as shown in Figure 1, the antenna includes: cable, plug and high frequency attenuation device；
Plug, for being electrically connected with electronic equipment；
Cable, for transmitting audio signal between the first end and the second end of the cable, the of the cable
One end support is connect with the plug, as shown in Fig. 2, the second end support of the cable is connect with playback device；It is described
High frequency attenuation device is set between the first end and the second end of the cable；
Cable between the first end of the cable and the setting position of the high frequency attenuation device is for incuding radio frequency
Signal generates current signal, and transmits current signal generated to the plug；Alternatively, passing through the electric current of the plug feed-in
Signal emits radiofrequency signal.
The antenna that the present embodiment is recorded can be supported to realize the dual function of antenna and earphone simultaneously, be supported below with regard to antenna
The course of work of ear-phone function and support transceiving radio frequency signal is illustrated respectively.
1) ear-phone function is supported
As shown in Fig. 2, plug, cable and playback device are constituted when the second end of cable is connect with playback device
Earphone, the external speaker that can be used as electronic equipment such as smart phone uses, when plug audio corresponding with electronic equipment end
Mouthful establish after electrical connection, audio-frequency module in electronic equipment by itself audio interface (be electrically connected with plug), via slotting
Head makes audio signal transmission to the second end of cable to the first end input audio signal of cable, is finally transmitted to and the
The playback device of two ends connection, so that playback device be driven to carry out audio output.
2) it is used as antenna
When emitting signal, the audio interface (connecting with plug) of electronic equipment can be multiplexed with the radio-frequency head of electronic equipment
Mouthful, the radio-frequency module in electronic equipment is by being multiplexed with the audio interface of prevention at radio-frequency port, the first end via plug to cable
Input current signal (high frequency alternating current), due to being set to cable high frequency attenuation device to the attenuation of high-frequency signal,
Can be considered as current signal can only between the first end and high frequency attenuation device of cable outside radiated radio frequency (RF) signal, thus complete
It is handled at the transmitting of radiofrequency signal；
When receiving signal, the decaying due to high frequency attenuation device to high-frequency signal, the second of high frequency attenuation device and cable
The current signal (high frequency alternating current signal) that the radiofrequency signal that inductive spacing transmits between end generates can not be declined by high frequency
Subtract the first end of device transmission to cable；Therefore, by the length of cable between high frequency attenuation device and the first end of cable
It is considered as the effective antenna length of the radiofrequency signal of inductive spacing, the current signal (high frequency alternating current signal) of cable induction passes through
Plug, prevention at radio-frequency port (can take audio port) input radio frequency module via electronic equipment, carry out signal by radio-frequency module
The baseband module processing being transmitted to after amplification, filtering, frequency-conversion processing in electronic equipment；To realize the reception processing of signal.
The setting position in the online cable of high frequency attenuation device is illustrated below.
It is penetrated as previously mentioned, the cable between the first end of cable and high frequency attenuation device is considered as radiation in the present embodiment
Frequency signal and inductive spacing transmission radiofrequency signal generate current signal effective antenna, therefore the first end of cable with
The length of cable between the setting position of high frequency attenuation device, should be corresponding with the target operation frequency range of antenna, that is to say, that
By the length of cable wiring is considered as antenna between position between the first end of cable and high frequency attenuation device in the present embodiment
Effective antenna length, if effective antenna length is L, then L meets γ/4 L=, and wherein γ is wavelength, meets γ=c/f, wherein c
The transmission speed for being radiofrequency signal in transmission medium, f can be the centre frequency of target operation frequency range.
Above-mentioned cable can use the material such as gold, core of the copper as cable of conductive energy, can except core
To wrap the insulating materials such as plastics, nylon, avoid generating interference to transmission current signal when touching conductor such as manpower；
Fig. 1 and plug shown in Figure 2 can be using conventional 2.5mm audio jacks, 3.5mm audio jack；Actually answer
In, the interface of plug is not limited only to shown in Fig. 1 and Fig. 2, can also use universal serial bus (USB) interface, Mini
USB interface and Micro USB interface, or thunder and lightning (Thunderbolt) interface is used, plug is used in the present embodiment
Interface type is without limitation.
Playback device can be In-Ear, wear-type from mode of appearance, to the appearance shape of playback device in the present embodiment
State is without limitation；High frequency attenuation device can use CATV high-frequency changeable attenuator, microwave high-frequency variable attenuator, for simplification
Structure, which reduces cost, can also use inductance or chip magnetic bead etc..
It should be pointed out that the antenna recorded in the present embodiment can be used for cellular communication, WiFi communication can be used for.
The scene that earphone is used cooperatively is generally required based on electronic equipment in the present embodiment, realize a kind of while there is ear
Machine function and antenna function antenna can be saved in electronic equipment in this way and the space of antenna are arranged, be advantageously implemented electronic equipment
It is lightening, reduce the cost for designing antenna in the electronic device, while there is good radiofrequency signal transmitting-receiving performance.
Embodiment two
The present embodiment is based on embodiment one, and electronic equipment generally requires to support in multiple frequency range transceiving radio frequencies in practical application
Signal, based at least two high frequency attenuation devices are arranged in cable to realize that multiband support is illustrated in the present embodiment.
As shown in figure 3,2 two high frequency attenuation devices of high frequency attenuation device 1 and high frequency attenuation device, high frequency are arranged in cable
The setting position of attenuation device 1,2 is additionally provided with corresponding switching device 1,2, enables to correspond to when switching device is in an off state
High frequency attenuation device, length of cable between the high frequency attenuation device in enabled state and the first end of cable is antenna
For incuding the effective antenna length of radiofrequency signal and radiated radio frequency (RF) signal；
Wherein, the length between the first end of cable and high frequency attenuation device 1 is set as L1, L1Meet L=γ1/ 4,
Middle γ1For wavelength, meet γ1=c/f1, f1It can be the centre frequency of target operation frequency range 1；The first end and high frequency of cable
Length between attenuation device 2 is set as L2, L2Meet L=γ2/ 4, wherein γ2For wavelength, meet γ2=c/f2, wherein c be
Transmission speed of the radiofrequency signal in transmission medium, f2It can be the centre frequency of target operation frequency range 2；
In conjunction with the above analysis, when needing antenna to support in f1For center frequency point frequency range transceiving radio frequency signal when, can control
Switching device 2 processed is in the conductive state to bypass high frequency attenuation device 2, and control switch device 1 is in an off state so that high
Frequency attenuation device 1 is in running order, so that the length of cable between the first end of cable and high frequency attenuation device 1 is effective
Antenna length；When need antenna support in f2For center frequency point frequency range transceiving radio frequency signal when, can control at switching device 1
In on state to bypass high frequency attenuation device 1, and control switch device 2 is in an off state so that at high frequency attenuation device 2
In working condition, so that the cable between the first end of cable and high frequency attenuation device 2 is effective antenna length；To realize
Adjustment based on target operation frequency range to effective antenna length, realizes the support to two-band.
It should be pointed out that three can be set in cable or more than high frequency attenuation device and correspondence in practical application
Switching device switching is realized based on control switch device so as to realize at least three kinds of effective antenna lengths of antenna
The effective antenna length of antenna, to realize the support to three frequency ranges.
It may also be noted that the on state and closed state of switching device can be switched over manually by user, this
When switching device on be provided with the manual switch switched between on state and closed state；In practical application, switching device
On state and the control signal that can also be inputted by electronic equipment by plug of closed state realize switching, wherein controlling
The electric parameter of the control signal of different switching devices can be different, so as to realize individually control to different switching devices
System.
Embodiment three
The present embodiment records a kind of earphone, as shown in figure 4, the earphone include: cable, plug, high frequency attenuation device and
At least one playback device (in Fig. 4 by taking two playback devices as an example)；
Plug, for being electrically connected with electronic equipment；
Cable, for transmitting audio signal between the first end and the second end of the cable, the of the cable
One end support is connect with the plug, as shown in figure 4, the second end support of the cable is connect with playback device；It is described
High frequency attenuation device is set between the first end and the second end of the cable；
Cable between the first end of the cable and the setting position of the high frequency attenuation device is for incuding radio frequency
Signal generates current signal, and transmits current signal generated to the plug；Alternatively, passing through the electric current of the plug feed-in
Signal emits radiofrequency signal.
The earphone that the present embodiment is recorded can be realized simultaneously the dual function of antenna and earphone, support conduct with regard to earphone below
Earphone playback and the course of work of transceiving radio frequency signal are illustrated respectively.
1) it is used as earphone
As shown in figure 4, plug, cable and playback device are constituted when the second end of cable is connect with playback device
Earphone, the external speaker that can be used as electronic equipment such as smart phone uses, when plug interface corresponding with electronic equipment is built
After vertical electrical connection, audio-frequency module in electronic equipment by itself audio interface (being electrically connected with plug), via plug to
The first end input audio signal of cable makes audio signal transmission to the second end of cable, is finally transmitted to and second end
The playback device of portion's connection, so that playback device be driven to carry out audio output.
2) it is used as antenna
When emitting signal, the audio interface (connecting with plug) of electronic equipment can be multiplexed with the radio-frequency head of electronic equipment
Mouthful, the radio-frequency module in electronic equipment is by being multiplexed with the audio interface of prevention at radio-frequency port, the first end via plug to cable
Input current signal (high frequency alternating current signal) makees the decaying of high-frequency signal due to being set to cable high frequency attenuation device
With, can be considered as current signal can only between the first end and high frequency attenuation device of cable outside radiated radio frequency (RF) signal, from
And complete the transmitting processing of signal；
When receiving signal, the decaying due to high frequency attenuation device to high-frequency signal, the second of high frequency attenuation device and cable
The current signal (high frequency alternating current signal) that the radiofrequency signal that inductive spacing transmits between end generates can not be declined by high frequency
Subtract the first end of device transmission to cable；Therefore, by the length of cable between high frequency attenuation device and the first end of cable
It is considered as the effective antenna length of the radiofrequency signal of inductive spacing, the current signal (high frequency alternating current signal) of cable induction passes through
Plug, the prevention at radio-frequency port input radio frequency module via electronic equipment carry out signal amplification, filtering, frequency-conversion processing by radio-frequency module
The baseband module processing being transmitted in electronic equipment afterwards；To realize the reception processing of signal.
The setting position in the online cable of high frequency attenuation device is illustrated below.
It is penetrated as previously mentioned, the cable between the first end of cable and high frequency attenuation device is considered as radiation in the present embodiment
Frequency signal and inductive spacing transmission radiofrequency signal generate current signal effective antenna, therefore the first end of cable with
The length of cable between the setting position of high frequency attenuation device, should be corresponding with the target operation frequency range of antenna, that is to say, that
By the length of cable wiring is considered as antenna between position between the first end of cable and high frequency attenuation device in the present embodiment
Effective antenna length, if effective antenna length is L, then L meets γ/4 L=, and wherein γ is wavelength, meets γ=c/f, wherein c
The transmission speed for being radiofrequency signal in transmission medium, f can be the centre frequency of target operation frequency range.
Above-mentioned cable can use the material such as gold, core of the copper as cable of conductive energy, can except core
To wrap the insulating materials such as plastics, nylon, avoid generating interference to transmission current signal when touching conductor such as manpower；
Plug shown in Fig. 4 can be using conventional 2.5mm audio jack, 3.5mm audio jack；In practical application,
The interface type of plug is not limited only to shown in Fig. 4, can also use universal serial bus (USB) interface, Mini USB interface
And Micro USB interface, or thunder and lightning (Thunderbolt) interface is used, the interface class that plug is used in the present embodiment
Type is without limitation.
Playback device can be In-Ear, wear-type etc. from mode of appearance, to the appearance of playback device in the present embodiment
Form is without limitation；High frequency attenuation device can use CATV high-frequency changeable attenuator, microwave high-frequency variable attenuator, for letter
Change structure, which reduces cost, can also use inductance or chip magnetic bead etc..
It should be pointed out that the antenna recorded in the present embodiment can be used for cellular communication, WiFi communication can be used for.
The scene that earphone is used cooperatively is generally required based on electronic equipment in the present embodiment, realize a kind of while there is ear
The earphone of machine function and antenna function can be saved in electronic equipment in this way and the space of antenna is arranged, be advantageously implemented electronics and set
Standby lightening and miniaturization, reduces the cost for designing antenna in the electronic device, while there is good radiofrequency signal to receive
Volatility.
Example IV
The present embodiment is based on embodiment three, and electronic equipment generally requires to support in multiple frequency range transceiving radio frequencies in practical application
Signal, based on three high frequency attenuation devices are arranged in headset cord to realize that multiband support is illustrated in the present embodiment.
As shown in figure 5,3 three high frequency attenuation device 1, high frequency attenuation device 2 and high frequency attenuation device height are arranged in cable
Frequency attenuation device, the setting position of high frequency attenuation device 1,2,3 are additionally provided with corresponding switching device 1,2,3, at switching device
Corresponding high frequency attenuation device is enabled when off-state, the first end of high frequency attenuation device and cable in enabled state
Between cable be that antenna is used to incude the effective antenna length of radiofrequency signal and radiated radio frequency (RF) signal；
Wherein, the length between the first end of cable and high frequency attenuation device 1 is set as L1, L1Meet L1=γ1/ 4,
Wherein γ1For wavelength, meet γ1=c/f1, f1It can be the centre frequency of target operation frequency range 1；The first end and height of cable
Length between frequency attenuation device 2 is set as L2, L2Meet L=γ2/ 4, wherein γ2For wavelength, meet γ2=c/f2, wherein c
The transmission speed for being radiofrequency signal in transmission medium, f2It can be the centre frequency of target operation frequency range 2；The first end of cable
Length between portion and high frequency attenuation device 3 is set as L3, L3Meet L=γ3/ 4, wherein γ3For wavelength, meet γ3=c/f3,
Wherein c is transmission speed of the radiofrequency signal in transmission medium, f3It can be the centre frequency of target operation frequency range 3；
In conjunction with the above analysis, when needing earphone to support in f1For center frequency point frequency range transceiving radio frequency signal when, can control
Switching device 2 processed is in the conductive state to bypass high frequency attenuation device 2, and control switch device 3 is in the conductive state to bypass height
Frequency attenuation device 3, and control switch device 1 is in an off state so that high frequency attenuation device 1 is in running order, so that cable
First end and high frequency attenuation device 1 between length of cable be effective antenna length；
When need earphone support in f2For center frequency point frequency range transceiving radio frequency signal when, can control at switching device 1
In on state to bypass high frequency attenuation device 1, control switch device 3 is in the conductive state to bypass high frequency attenuation device 3, and
Control switch device 2 is in an off state so that high frequency attenuation device 2 is in running order, so that the first end of cable and height
Length of cable between frequency attenuation device 2 is effective antenna length；
When need earphone support in f3For center frequency point frequency range transceiving radio frequency signal when, can control at switching device 1
In on state to bypass high frequency attenuation device 1, control switch device 2 is in the conductive state to bypass high frequency attenuation device 2, and
Control switch device 3 is in an off state so that high frequency attenuation device 3 is in running order, so that the first end of cable and height
Length of cable between frequency attenuation device 3 is effective antenna length；
To realize the adjustment based on target operation frequency range to effective antenna length, the branch to three frequency ranges is realized
It holds.
It should be pointed out that in practical application, can be set in cable two or more than three high frequency attenuation device and
Corresponding switching device realizes switching day based on control switch device so as to realize antenna difference effective antenna length
The effective antenna length of line, to realize the support to different frequency range.
It may also be noted that the on state and closed state of switching device can be switched over manually by user, this
When switching device on be provided with the manual switch switched between on state and closed state；In practical application, switching device
On state and the control signal that can also be inputted by electronic equipment by plug of closed state realize switching, wherein controlling
The electric parameter of the control signal of different switching devices can be different, so as to realize individually control to different switching devices
System.
Embodiment five
The present embodiment records a kind of electronic equipment, the electronics that can be recorded for mobile phone or tablet computer etc., the present embodiment
The earphone that equipment can be recorded with embodiment three, four is used cooperatively, and is made earphone while being realized the function of playback and transceiving radio frequency signal
Can, the structure and the course of work of earphone are referring to the record of embodiment three, four, and this embodiment is not repeated.
The functional module structure schematic diagram of electronic equipment as shown in FIG. 6, comprising:
Audio-frequency module 10 is connect for the audio port 30 by the electronic equipment with the plug of external earphone, with
By the cable of the earphone to the playback device transmission audio signal of the earphone；
Radio-frequency module 20 is connect for passing through the audio port 30 with the plug of the earphone, namely multiplexing audio end
Mouth 30 is the prevention at radio-frequency port of radio-frequency module 20, and when a signal is received, the part cable for receiving the earphone passes through the plug institute
Current signal is amplified, is filtered, baseband module 40 is transmitted to after analog-to-digital conversion process handled by the current signal of feed-in；When
When sending signal, the baseband signal that baseband module 40 is transmitted carries out digital-to-analogue conversion, mixing, and it is (high that current signal is obtained after flourishing
Frequency alternating current) pass through prevention at radio-frequency port, transmit the part cable of earphone via plug, believed by the part cable of earphone based on electric current
Number to space radiated radio frequency (RF) signal.
Wherein, the part cable of the earphone is that the first end of the headset cord declines with the headset cord medium-high frequency
Subtract the cable between the setting position of device, if previous embodiment three is recorded, since high frequency attenuation device declines to high-frequency signal
Subtract characteristic, first end to the cable between high frequency attenuation device of headset cord is effective antenna length；When being arranged in earphone
When multiple high frequency attenuation devices, effective antenna length be cable first end in running order high frequency attenuation device it
Between cable track lengths, as shown in fig. 7, setting is there are three high frequency attenuation device in cable, wherein high frequency attenuation device 2,3
In bypass condition, high frequency attenuation device 1 is in running order, and effective antenna length is the first end of cable to high frequency attenuation
The track lengths of cable between device 1.
Embodiment six
The present embodiment is based on embodiment five, as shown in figure 8, being based on Fig. 6, can also include: in electronic equipment
Processing module 50, for controlling the work of switching device corresponding with the high frequency attenuation device in the headset cord
Make state, so that the length of cable between the first end of the headset cord and targeted high frequency attenuation device and target effective day
Line length is corresponding；
Wherein, it is provided on the cable and the one-to-one switching device of high frequency attenuation device, the derailing switch
The switching device corresponding high frequency attenuation device is enabled when part is in an off state, when the switching device is in the conductive state
The corresponding high frequency attenuation device of the switching device is bypassed, the on state or off-state of switching device can be by processing modules
50 are switched by the control signal that plug inputs to realize, wherein controlling the electric parameter of the control signal of different switching devices not
Together, it is individually controlled so as to be realized to different switching devices.
As shown in figure 9, the length between the first end and high frequency attenuation device 1 of cable is set as L1, L1Meet L=
γ1/ 4, wherein γ1For wavelength, meet γ 1=c/f1, f1It can be the centre frequency of target operation frequency range 1；The first end of cable
Length between portion and high frequency attenuation device 2 is set as L2, and L2 meets L=γ2/ 4, wherein γ2For wavelength, meet γ2=c/
f2, wherein c is transmission speed of the radiofrequency signal in transmission medium, f2It can be the centre frequency of target operation frequency range 2；Cable
First end and high frequency attenuation device 3 between length be set as L3, L3Meet L=γ3/ 4, wherein γ 3 is wavelength, is met
γ3=c/f3, wherein c is transmission speed of the radiofrequency signal in transmission medium, f3It can be the center frequency of target operation frequency range 3
Rate；
For example, when needing earphone to support in f1For center frequency point target frequency bands transceiving radio frequency signal when, processing module 50
(control high frequency attenuator can be different to the control signal that plug sends corresponding high frequency attenuation device 1 by audio port 30
The control signal of part 2,3) so that switching device 2 is in the conductive state to bypass high frequency attenuation device 2, it is in switching device 3
On state is in an off state switching device 1 so that high frequency attenuation device 1 is in work to bypass high frequency attenuation device 3
Make state, the length of cable between the first end of cable and high frequency attenuation device 1 is target effective antenna length at this time, with mesh
Mark the center frequency point f of frequency range1It is corresponding.
In the present embodiment electronic equipment may not necessarily built-in antenna module, but by earphone be multiplexed with antenna use, save
The inner space of electronic equipment has using realizing the lightening of electronic equipment.
Embodiment seven
The present embodiment is based on embodiment six, electronic equipment itself is provided with Anneta module, and exist with earphone and be electrically connected
The processing of scene be illustrated；As shown in Figure 10, it is based on Fig. 8, can also include: in electronic equipment
Built-in antenna module 60, for receiving and/or emitting radiofrequency signal；When receiving radiofrequency signal, inductive spacing transmission
Radiofrequency signal generate current signal and be transmitted to radio-frequency module 20 processing；When emitting radiofrequency signal, by coming from radio-frequency module
20 current signal (high frequency alternating current) is to space radiated radio frequency (RF) signal；
The processing module 50 is also used to detect that the electronic equipment is with the earphone by the audio port 30
No electrical connection by the part cable reception of the earphone and/or can be penetrated with built-in antenna module 60 if connection
Frequency signal, that is, earphone is multiplexed with antenna and is used；
For example, electronic equipment detects the current working frequency range of built-in antenna unit first, so that it is determined that earphone is multiplexed with day
Target operation frequency range when line；Based on the position that high frequency attenuation device is arranged in target operation frequency range and earphone, determines and need
Enabled targeted high frequency attenuation device, as shown in Figure 9, it is assumed that targeted high frequency attenuation device is high frequency attenuation device 1, then handles mould
Block 50 by audio port 30, via plug to cable transmission in requisition for derailing switch corresponding to enabled high frequency attenuation device
The control signal of part, trigger switch device are in an off state to enabled high frequency attenuation device 1, in this way, the of headset cord
The cable wiring length of one end to high frequency attenuation device 1 is effective antenna length, and effective antenna length corresponds to γ1/ 4,
Middle γ1=c/f1, c is transmission speed of the radiofrequency signal in transmission medium, f1For the centre frequency of target operation frequency range.
In practical application, when processing module 50 detects that earphone is electrically connected with electronic equipment, built-in day can not be closed
Wire module 60, but using built-in antenna module 60 as main collection antenna, to receive and/or emit radiofrequency signal, and utilize
The part cable of earphone, to receive radiofrequency signal, promotes the receiving sensitivity of electronic equipment, partial line here as diversity
Cable is the first end of headset cord in running order high frequency attenuation device (high frequency attenuation device 1 as shown in Figure 9)
Between cable, the work at present frequency range one of working frequency range and built-in antenna module 60 that the effective antenna length of earphone is supported
Cause namely the target operation frequency point of earphone and the work at present frequency range of built-in antenna module 60 are consistent, determine and enabled target is high
The processing of frequency attenuation device is identical as the above, and which is not described herein again.
It should be pointed out that Second processing module 50 and embodiment five that the present embodiment is recorded record processing module 50 in reality
It can be realized by the baseband processor (BP, Baseband Processor) of electronic equipment in the application of border.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (13)
1. a kind of antenna, which is characterized in that the antenna includes: cable, plug and high frequency attenuation device；
Cable, for transmitting audio signal, the first end of the cable between the first end and the second end of the cable
Portion supports to connect with the plug, and the second end support of the cable is connect at least one playback device；
Plug, for being electrically connected with electronic equipment；
The high frequency attenuation device, is set between the first end and the second end of the cable；
Cable between the first end of the cable and the setting position of the high frequency attenuation device is for incuding radiofrequency signal
Current signal is generated, and transmits current signal generated to the plug；Alternatively, by the plug to the first end of cable
The current signal of portion's feed-in emits radiofrequency signal.
2. antenna according to claim 1, which is characterized in that the first end of the cable and the high frequency attenuation device
Setting position between cable length it is corresponding with the target operation frequency range of the antenna.
3. antenna according to claim 2, which is characterized in that
The effective antenna length of the antenna corresponds to the first end of the cable and the setting position of the high frequency attenuation device
Between length of cable.
4. antenna according to claim 1, which is characterized in that
The quantity at least two of the high frequency attenuation device；
It is provided on the cable and is in disconnection with the one-to-one switching device of high frequency attenuation device, the switching device
It enables the switching device corresponding high frequency attenuation device when state, is opened described in bypass when the switching device is in the conductive state
Close the corresponding high frequency attenuation device of device.
5. antenna according to claim 4, which is characterized in that
The antenna length of the antenna corresponds to the first end of the cable and the high frequency attenuation device for being in enabled state
Setting position between length of cable.
6. a kind of earphone, which is characterized in that the earphone includes: cable, plug and high frequency attenuation device and at least one playback
Device；
Cable, for transmitting audio signal, the first end of the cable between the first end and the second end of the cable
Portion supports to connect with the plug, and the second end support of the cable is connect at least one described playback device；
Plug, for being electrically connected with electronic equipment；
The high frequency attenuation device, is set between the first end and the second end of the cable；
Cable between the first end of the cable and the setting position of the high frequency attenuation device is for incuding radiofrequency signal
Current signal is generated, and transmits current signal generated to the plug；Alternatively, by the plug to the first end of cable
The current signal of portion's feed-in emits radiofrequency signal.
7. earphone according to claim 6, which is characterized in that
The effective antenna length of antenna corresponds between the first end of the cable and the setting position of the high frequency attenuation device
Length of cable.
8. earphone according to claim 7, which is characterized in that the first end of the cable and the high frequency attenuation device
Setting position between cable track lengths it is corresponding with the target operation frequency range of the antenna.
9. earphone according to claim 6, which is characterized in that
The quantity at least two of the high frequency attenuation device；
It is provided on the cable and is in disconnection with the one-to-one switching device of high frequency attenuation device, the switching device
It enables the switching device corresponding high frequency attenuation device when state, is opened described in bypass when the switching device is in the conductive state
Close the corresponding high frequency attenuation device of device.
10. earphone according to claim 9, which is characterized in that
The corresponding effective antenna of length of cable between the setting position of the first end of the cable and the high frequency attenuation device
Length.
11. a kind of electronic equipment, which is characterized in that the electronic equipment includes:
Audio-frequency module is connect, by described with the plug of external earphone for the audio port by the electronic equipment
Playback device transmission audio signal of the cable of earphone to the earphone；
Radio-frequency module receives the part cable of the earphone for connecting by the audio port with the plug of the earphone
Pass through the current signal of plug institute feed-in；Or by current signal by the audio port, via the plug to line
The first end of cable is transmitted to the part cable of the earphone, so that the part cable radiated radio frequency (RF) signal of the earphone；
Wherein, the part cable of the earphone is that the first end of cable of the earphone declines with the cable medium-high frequency of the earphone
Subtract the cable between the setting position of device.
12. electronic equipment according to claim 11, which is characterized in that the electronic equipment further include:
Processing module, the work shape of switching device corresponding with the high frequency attenuation device in the cable for controlling the earphone
State, so that length of cable and target effective antenna between the first end of the cable of the earphone and targeted high frequency attenuation device
Length is corresponding；
Wherein, be provided on the cable with the one-to-one switching device of high frequency attenuation device, at the switching device
Enable the switching device corresponding high frequency attenuation device when off-state, the switching device bypasses when in the conductive state
The corresponding high frequency attenuation device of the switching device.
13. electronic equipment according to claim 12, which is characterized in that the electronic equipment further include:
Built-in antenna module, for receiving and/or emitting radiofrequency signal；
The processing module when being also used to detect that the electronic equipment is connect by the audio port with the earphone, is closed
Close the built-in antenna module, with by the part cable reception of the earphone and/or transmitting radiofrequency signal, alternatively, utilizing institute
It states built-in antenna module and receives and/or emit radiofrequency signal, and utilize the part cable reception radiofrequency signal of the earphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510150152.4A CN106162398B (en) | 2015-03-31 | 2015-03-31 | Antenna, earphone and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510150152.4A CN106162398B (en) | 2015-03-31 | 2015-03-31 | Antenna, earphone and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106162398A CN106162398A (en) | 2016-11-23 |
| CN106162398B true CN106162398B (en) | 2019-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510150152.4A Active CN106162398B (en) | 2015-03-31 | 2015-03-31 | Antenna, earphone and electronic equipment |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112399296B (en) * | 2019-08-19 | 2023-05-12 | Oppo广东移动通信有限公司 | Wearable device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352096A (en) * | 2005-12-19 | 2009-01-21 | 吉豊科技有限公司 | Earphone-equipped antenna and earphone |
| JP2011172125A (en) * | 2010-02-19 | 2011-09-01 | Sony Corp | Antenna device, and receiving device |
| CN104221215A (en) * | 2012-02-03 | 2014-12-17 | 苹果公司 | Tunable antenna system |
-
2015
- 2015-03-31 CN CN201510150152.4A patent/CN106162398B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352096A (en) * | 2005-12-19 | 2009-01-21 | 吉豊科技有限公司 | Earphone-equipped antenna and earphone |
| JP2011172125A (en) * | 2010-02-19 | 2011-09-01 | Sony Corp | Antenna device, and receiving device |
| CN104221215A (en) * | 2012-02-03 | 2014-12-17 | 苹果公司 | Tunable antenna system |
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| CN106162398A (en) | 2016-11-23 |
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