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CN103728502B - The method and system and wireless terminal of a kind of antenna measurement - Google Patents

The method and system and wireless terminal of a kind of antenna measurement Download PDF

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Publication number
CN103728502B
CN103728502B CN201310750806.8A CN201310750806A CN103728502B CN 103728502 B CN103728502 B CN 103728502B CN 201310750806 A CN201310750806 A CN 201310750806A CN 103728502 B CN103728502 B CN 103728502B
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test
antenna
circuit
signal
wireless terminal
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CN103728502A (en
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陈扬邦
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Honor Device Co Ltd
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Huawei Device Dongguan Co Ltd
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Abstract

The present invention provides a kind of method and system and wireless terminal of antenna measurement, is related to field of antenna, can reduce the false failure rate of antenna measurement.Methods described is applied to wireless terminal, and the wireless terminal includes antenna and test circuit, and one end of the test circuit electrically connects the antenna, and the other end electrically connects the test equipment outside the wireless terminal, and methods described includes:The test circuit receives the test signal that the test equipment is sent, and the test signal is transferred into the antenna;The test circuit is received as antenna-reflected reflected signal corresponding with the test signal, and the reflected signal is transferred to the test equipment, so that the test equipment determines the parameter of the antenna according to the test signal and the reflected signal.The present invention is used in antenna measurement technology.

Description

The method and system and wireless terminal of a kind of antenna measurement
Technical field
The present invention relates to the method and system and wireless terminal of field of antenna, more particularly to a kind of antenna measurement.
Background technology
With enriching for wireless application, increasing antenna is integrated on same wireless terminal.For example, mobile phone, On the consumer wireless terminal such as tablet personal computer, Multifunctional player, global positioning system (Global may be integrated with Positioning System, GPS), Wireless Fidelity (Wireless Fidelity, Wi-Fi), global system for mobile communications (Global System for Mobile Communications, GSM)/CDMA (Code Division Multiple Access, CDMA/ Universal Mobile Telecommunications System (Universal Mobile Telecommunica-tions System, UMTS), a variety of communication standards and its corresponding multiple antennas such as near-field communication (Near Field Communication, NFC). Therefore, the workload of antenna measurement is bigger.How efficiently to check whether each antenna performance qualified, turn into current research and development, One problem of production.
A kind of scheme for testing antenna as providing in the prior art:First, wireless terminal and its antenna are placed in screen Cover the assigned position in the test environments such as box, pyrometric cone.Then, computer sends one group of AT (Attention) order control day Line launches electromagnetic wave, and the electromagnetic wave of test environment reception antenna transmitting is simultaneously sent electromagnetic wave by radio-frequency cable (RF Cable) To anolog base station.Then, anolog base station receives above-mentioned electromagnetic wave and analyzes the parameters such as the transmission power of antenna.Computer from Anolog base station obtains above-mentioned parameter and judges it whether in given scope, so that it is determined that whether antenna performance is qualified.
However, the requirement for the position that such scheme is placed in test environment to antenna is very accurate, even if the position of antenna There is the parameter such as trickle skew, the transmission power for the antenna that anolog base station analyzes also to have relative to defined position very big Change.It can be seen that because the program is very sensitive to the position of antenna, easily cause the false failure rate of antenna measurement high.
The content of the invention
Embodiments of the invention provide a kind of method and system and wireless terminal of antenna measurement, can reduce antenna The false failure rate of test.
To reach above-mentioned purpose, embodiments of the invention adopt the following technical scheme that:
First aspect, there is provided a kind of method of antenna measurement, applied to wireless terminal, the wireless terminal includes antenna, Characterized in that, the wireless terminal also includes test circuit, one end of the test circuit electrically connects the antenna, the other end The test equipment outside the wireless terminal is electrically connected, methods described includes:
The test circuit receives the test signal that the test equipment is sent, and the test signal is transferred to described Antenna;
The test circuit is received as antenna-reflected reflected signal corresponding with the test signal, and by described in Reflected signal is transferred to the test equipment, so that the test equipment determines according to the test signal and the reflected signal The parameter of the antenna.
With reference in a first aspect, in the first possible implementation of first aspect, the passband of the test circuit Outside the working band of the antenna, the frequency of the test signal is the frequency outside the working band of the antenna.
With reference to the first possible implementation of first aspect, in second of possible implementation of first aspect In, the test circuit includes high pass circuit, low pass circuit, with any one in resistance circuit.
With reference to second of any possible implementation of the first of first aspect or first aspect to first aspect, In the third possible implementation of first aspect, the parameter includes at least one following parameter:Return loss, voltage are stayed Bob.
Second aspect, there is provided a kind of wireless terminal, the wireless terminal include antenna, and the wireless terminal also includes test Circuit, one end electrical connection antenna of the test circuit, the other end electrically connect the test equipment outside the wireless terminal;
The test circuit, the test signal for receiving and sending the test equipment are transferred to the antenna;
The antenna, for receiving the test signal, and reflect reflected signal corresponding with the test signal;
The test circuit is additionally operable to:Receive and the reflected signal of the antenna is transferred to the test equipment, so that The test equipment determines the parameter of the antenna according to the test signal and the reflected signal.
With reference to second aspect, in the first possible implementation of second aspect, the passband of the test circuit Outside the working band of the antenna, the frequency of the test signal is the frequency outside the working band of the antenna.
With reference to the first possible implementation of second aspect, in second of possible implementation of second aspect In, the test circuit includes high pass circuit, low pass circuit, with any one in resistance circuit.
With reference to second of possible implementation of second aspect, in the third possible implementation of second aspect In, the test circuit includes at least one set of test circuit, and the antenna is an at least antenna, the test circuit with it is described Antenna corresponds, and outside the working band of antenna of the passband of the test circuit corresponding to it;
The test circuit, the test signal for receiving and sending the test equipment are transferred to corresponding antenna;
The antenna, for receiving the test signal, and reflect reflected signal corresponding with the test signal;
The test circuit is additionally operable to:Receive and the reflected signal of corresponding antenna is transferred to the test equipment, with The test equipment is set to determine the parameter of the antenna according to the test signal and the reflected signal.
With reference to second of possible implementation of second aspect, in the 4th kind of possible implementation of second aspect In, the test circuit is an adjustable test circuit of passband, and the antenna is more antennas;
The test circuit, the test signal for receiving and sending the test equipment are transferred to antenna to be measured, institute Antenna to be measured is stated as the current antenna tested in the more antennas;
The antenna to be measured, for receiving the test signal, and reflect reflected signal corresponding with the test signal;
The test circuit is additionally operable to:Receive and the reflected signal of the antenna to be measured be transferred to the test equipment, So that the test equipment determines the parameter of the antenna according to the test signal and the reflected signal;
Wherein, the passband adjustment of the test circuit is outside the working band of the antenna to be measured.
With reference to the first of second aspect or second aspect to the 4th kind of any possible implementation, in second aspect In 5th kind of possible implementation, the wireless terminal also includes interface, for electrically connecting the test circuit and the survey Try equipment.
The third aspect, there is provided a kind of system of antenna measurement, including wireless terminal and test equipment, the wireless terminal bag Antenna is included, the wireless terminal also includes test circuit, and one end of the test circuit electrically connects the antenna, and the other end is electrically connected Connect the test equipment;
The test equipment sends test signal;
The test circuit receives and the test signal is transferred into the antenna;
The antenna receives the test signal, and reflects reflected signal corresponding with the test signal;
The test circuit receives and the reflected signal is transferred into the test equipment;
The test equipment receives the reflected signal and according to determining the test signal and the reflected signal The parameter of antenna.
With reference to the third aspect, in the first possible implementation of the third aspect, the passband of the test circuit Outside the working band of the antenna, the frequency of the test signal is the frequency outside the working band of the antenna.
With reference to the first possible implementation of the third aspect, in second of possible implementation of the third aspect In, the system also includes tuning circuit, and one end of the tuning circuit electrically connects the test circuit, other end electrical connection institute State test equipment;
The tuning circuit is used for:Optimize the reflected signal.
The method and system and wireless terminal of the antenna measurement provided according to embodiments of the present invention, antenna are received by surveying The test signal that examination equipment is sent via test circuit, it is then, the antenna-reflected is corresponding with the test signal anti- Penetrate signal and be sent to the test equipment via identical test circuit.So, the test equipment can be according to the test Signal determines the parameter of the antenna with the reflected signal, so as to realize antenna measurement.Compared to need in the prior art by Wireless terminal, which is placed in test environment, is tested and is required that the position that antenna is placed in test environment is very accurate, according to this The method that the antenna measurement provided is provided, antenna measurement dexterously can be carried out using the test circuit inside wireless terminal, from And can avoid because false failure rate is high caused by test condition requires the reason such as harshness the problem of, therefore, it is possible to reduce antenna measurement False failure rate.
Brief description of the drawings
Figure 1A is the structural representation for the wireless terminal that the embodiment of the present invention one provides;
Figure 1B is the structural representation for the wireless terminal that a variant embodiment of the embodiment of the present invention one provides;
Fig. 1 C are the structural representation for the wireless terminal that another variant embodiment of the embodiment of the present invention one provides;
Fig. 1 D are the structural representation for the wireless terminal that the another variant embodiment of the embodiment of the present invention one provides;
Fig. 2 is the flow chart of the method for the antenna measurement that the embodiment of the present invention two provides;
Fig. 3 is the schematic diagram in the system of the antenna measurement of the variant embodiment offer of the embodiment of the present invention three;
Fig. 4 is the schematic diagram of the system for the antenna measurement that the embodiment of the present invention four provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.
As shown in Figure 1A, the embodiment of the present invention one provides a kind of wireless terminal 10, wireless terminal 10 include antenna 11 and Test circuit 12.Wherein, test circuit 12 is arranged on inside wireless terminal 10, one end electrical connection antenna 11 of test circuit 12, Test equipment 30 outside other end electrical connection wireless terminal 10.Led specifically, one end of test circuit 12 can for example utilize Electrical connection of the line directly with antenna 11, the electrical connection of coupler and antenna 11 can also be used.Test equipment 30 for example may be used Think Network Analyzer or other can measure antenna parameter (such as return loss, voltage standing wave ratio etc.) equipment.Need Illustrate, one end of above-mentioned test circuit 12 and the specific connected mode of antenna 11, and test equipment 30 is network analysis Instrument is merely illustrative, and any restrictions are not done to the present invention.
During antenna measurement, test circuit 12 is used to receive the test signal that test equipment 30 is sent, and by institute State test signal and be transferred to antenna 11;Antenna 11 is used for the test signal for receiving the transmission of test circuit 12, and reflects and the survey Reflected signal corresponding to trial signal;Test circuit 12 is additionally operable to the reflected signal of the reflection of reception antenna 11, and the reflection is believed Number test equipment 30 is transferred to, so that test equipment 30 determines the ginseng of antenna 11 according to the test signal and the reflected signal Number.
Wherein it is preferred to the passband of test circuit 12, outside the working band of antenna 11, the test signal is frequency Electric signal of the rate in the passband of test circuit 12, that is, the test signal be frequency antenna 11 working band it Outer electric signal.By setting the passband of test circuit 12 outside the working band of antenna 11, inside wireless terminal 10 The signal that radio-frequency module 15 (reference picture 1B, 1C) is sent can not enter test equipment, can prevent radio-frequency module from influenceing antenna 11 Test, moreover, can also prevent test circuit 12 influence radio-frequency module 15 normal work.
In order to realize the passband of test circuit 12 outside the working band of antenna 11, test circuit 12 can be high pass Circuit, low pass circuit, with any one in resistance circuit.
In the present embodiment, the printed circuit board (PCB) (Printed Circuit Board, PCB) in wireless terminal 10 is passed through Upper progress circuit and cabling handle to obtain test circuit 12, so that antenna 11 can receive the test of outside via test circuit 12 The test signal that equipment 30 is sent.In impedance mismatch, antenna 11 can not all absorb the high frequency transmitted in test circuit 12 Energy, unabsorbed part energy will reflect back to form back wave in test circuit 12, i.e., described reflected signal.Survey Examination equipment 30 determines the parameter of the antenna 11 according to the test signal and the reflected signal:Return loss (return ) or voltage standing wave ratio (Voltage Standing Wave Ratio, VSWR) loss.Certainly, test equipment 30 can also be simultaneously Determine return loss and voltage standing wave ratio.According to the parameter of antenna 11, it check that whether the performance of antenna 11 is qualified, enter And strictly control antenna supplied materials.
It should be noted that in order to avoid circuit (including test circuit 12) and day between test equipment 30 and antenna 11 Reflected signal problems of too caused by the mismatch of line 11, the circuit between test equipment 30 and antenna 11 need to be suitably debugged, such as adjusted Examination is reserved in close to the match circuit (part for belonging to test circuit 12) of external interface on PCB, also, controls test equipment Circuit impedance between 30 and antenna 11 with and to control the radio frequency line impedence on PCB printed circuit board (PCB)s 10 be equal so that surveying Antenna high frequency characteristics waveform is can show that in examination equipment 30.
In the wireless terminal that the present embodiment provides, test circuit is used to receive the test signal sent by test equipment simultaneously The test signal is sent to antenna;Antenna is used to receive the test signal and reflects reflection letter corresponding with the test signal Number;The reflected signal of antenna is also transferred to test equipment by test circuit.So, the test equipment can be according to described Test signal determines the parameter of the antenna with the reflected signal, so as to realize antenna measurement.Compared to needing in the prior art Wireless terminal is placed in test environment and is tested and required the very accurate of the position that antenna is placed in test environment, According to wireless terminal provided by the invention, antenna measurement dexterously can be carried out using the test circuit inside wireless terminal, from And can avoid because false failure rate is high caused by test condition requires the reason such as harshness the problem of, therefore, it is possible to reduce antenna measurement False failure rate.
In the wireless terminal 10 that embodiment one provides, antenna 11 is not limited to one, can include more;Test circuit 12 One is also not necessarily limited to, can be included multiple.Wherein, antenna and test circuit can correspond or more antennas pair Answer a test circuit.Below, with reference to Figure 1B to Fig. 1 D, the facilities of antenna and test circuit are illustrated, and below Using antenna 11 it is two antennas 111 and antenna 112 as entering in case of setting terminal to include more antennas in embodiment Row explanation.Although in the explanation of following examples so that test circuit 12 is high pass circuit 13 as an example, those skilled in the art Low pass circuit can also be used or replace high pass circuit 13 with resistance circuit and obtain other embodiments.
As shown in Figure 1B, in a variant embodiment of embodiment one, two antennas 111 and antenna 112 correspond to two respectively Individual test circuit, wherein, test circuit is high pass circuit 13, and the passband of high pass circuit 13 with its corresponding to antenna work It is corresponding to make frequency band.
During antenna measurement, by taking antenna 111 as an example, high pass circuit 13 (i.e. the high pass circuit in left side in Figure 1B) is used for The test signal for receiving and sending test equipment 30 is transferred to corresponding antenna 111;Antenna 111 is used to receive the test letter Number, and reflect reflected signal corresponding with the test signal;High pass circuit 13 is additionally operable to:Receive and by corresponding antenna 111 Reflected signal be transferred to test equipment 30 so that test equipment 30 determines day according to the test signal and the reflected signal The parameter of line 111.The test process of antenna 112 can directly obtain according to the test process of antenna 111.
As shown in Figure 1 C, in another variant embodiment of embodiment one, two antennas 111 and antenna 112 are corresponding one Test circuit, wherein, test circuit is high pass circuit 13a, and high pass circuit 13a is the adjustable high pass circuit of passband.
During antenna measurement, using antenna 111 as antenna to be measured exemplified by, high pass circuit 13a be used for receive and will survey The test signal that examination equipment 30 is sent is transferred to antenna 111;Antenna 111 is used to receive the test signal, and reflect with it is described Reflected signal corresponding to test signal;High pass circuit 13a is additionally operable to:Receive and the reflected signal of antenna 111 is transferred to test Equipment 30, so that test equipment 30 determines the parameter of antenna 111 according to the test signal and the reflected signal.Wherein, it is high Circuit passband 13a passband adjustment is outside the working band of antenna 111.Similarly, when testing antenna 112, high pass circuit 13a passband can be adjusted outside the working band of antenna 112.
In the embodiment shown in Figure 1B and Fig. 1 C, by set high pass circuit 13 or the 13a test signals with The reflected signal can be by high pass circuit 13 or 13a, also, the radio-frequency module 15 of wireless terminal 10 itself (such as is sent out Penetrate machine) can not be by high pass circuit 13 or 13a to the input signal of the transmission of antenna 11.Therefore, by setting high pass circuit so that Radio-frequency module 15 does not influence the test of antenna, moreover, high pass circuit nor affects on radio-frequency module 15 normal work of itself.
As shown in figure iD, on the basis of any of the above-described embodiment, the another variant embodiment of the embodiment of the present invention one carries The wireless terminal 10 of confession also includes interface 14, for electrically connecting the test circuit 12 and test equipment 30.
Specifically, when carrying out circuit and cabling processing on the pcb, the interface 14 of wireless terminal 10 is dexterously utilized (such as USB (Universal Serial Bus, USB) interface), can be by test circuit 12 and test equipment 30 Connect.These, it is preferred to it is used as interface 14 by the use of existing interface in wireless terminal 10.Therefore, in test antenna 11 When, only it need to utilize the connecting test equipment 30 of interface 14, you can carry out antenna measurement.It can be seen that the assembling process of Antenna testing system It is very simple, it is easy to improve the efficiency of antenna measurement.
As shown in Fig. 2 the embodiment of the present invention two provides a kind of method of antenna measurement, applied to above-described embodiment one and its The wireless terminal that variant embodiment provides, the wireless terminal include antenna, and the wireless terminal also includes test circuit, described One end of test circuit electrically connects the antenna, and the other end electrically connects the test equipment outside the wireless terminal, methods described Including:
Step 21, test circuit receive the test signal that test equipment is sent, and test signal is transferred into antenna.
When starting test, tester can operate test equipment and send test signal.Due to the test electricity in wireless terminal The one end on road electrically connects with test equipment, therefore test circuit can receive the test signal that the test equipment is sent.And due to The other end of test circuit electrically connects with the antenna in wireless terminal, therefore test circuit can pass the test signal received The antenna being defeated by wireless terminal.So, antenna can be received via the test circuit and sent by the test equipment Test signal.
Step 22, test circuit are received as antenna-reflected reflected signal corresponding with test signal, and by reflected signal Test equipment is transferred to, so that test equipment determines the parameter of antenna according to test signal and reflected signal.
In this step, antenna is after the test signal that test equipment is sent is received, on the one hand, with the shape of electromagnetic wave Formula outwards gives off energy, on the other hand, reflects reflection corresponding with test signal in test circuit in the form of back wave Signal.The reflected signal for the test circuit reception antenna that one end electrically connects with antenna, and it is another that the reflected signal is transferred into circuit The test equipment of one end.So, test equipment can receive antenna reflected signal and according to the test signal with it is described Reflected signal determines the parameter of antenna.The parameter includes at least one of return loss, voltage standing wave ratio.
Because wireless terminal and its antenna need not be placed in test environment, therefore, during antenna detection, to test The requirement of environment and measuring accuracy is not harsh.So, wireless terminal to be measured can not only be avoided to be placed in test environment Judged by accident caused by the human factors such as position is improper, improve first-pass yield, and, it is possible to increase testing efficiency or even production efficiency.
In step 21 and step 22, it is preferable that can set the frequency of test signal test circuit passband it It is interior, and set test circuit passband the working band of the antenna and its corresponding radio-frequency module (such as emitter) it Outside, thus test signal can be by test circuit, and the signal that the radio-frequency module is sent to antenna can not be by testing electricity Road.For example, worked in the radio-frequency module, i.e., in the case that described radio-frequency module sends input signal to the antenna, due to The frequency of the input signal is not in the passband of the test circuit, therefore the input signal can not be via the test Circuit is sent to the test equipment.So, interference of the radio-frequency module to antenna measurement can either be prevented, and can prevents from surveying Examination circuit impacts to the normal work of radio-frequency module and antenna.
Further, in order to realize the passband of test circuit outside the working band of antenna, test circuit can be High pass circuit, low pass circuit, with any one in resistance circuit.
The method of the antenna measurement provided according to embodiments of the present invention, test circuit receive the survey that the test equipment is sent Trial signal, and the test signal is transferred to antenna;The test signal is received in antenna and is launched and the test signal pair After the reflected signal answered, test circuit receives and the reflected signal is transferred into the test equipment.So, the test is set The standby parameter that the antenna can be determined according to the test signal and the reflected signal, so as to realize antenna measurement.Compare Tested and required that antenna is placed in test environment in needing wireless terminal being placed in test environment in the prior art Position is very accurate, according to the method for antenna measurement provided by the invention, can dexterously utilize the test inside wireless terminal Circuit carries out antenna measurement, so as to avoid because false failure rate is high caused by test condition requires the reason such as harshness the problem of, because This, can reduce the false failure rate of antenna measurement.
As shown in Figure 1A, the embodiment of the present invention three provides a kind of system of antenna measurement, and the system includes wireless terminal 10 and test equipment 30, the wireless terminal 10 include antenna 11 and test circuit 12.One end electrical connection day of test circuit 12 Line 11, other end electrical connection test equipment 30.Wireless terminal 10 can be the wireless terminal of any of the above-described embodiment.
The process that the system carries out antenna measurement is as follows:
Test equipment 30 sends test signal;
Test circuit 12 receives and the test signal is transferred into antenna 11;
Antenna 11 receives the test signal, and reflects reflected signal corresponding with the test signal;
Test circuit 12 receives and the reflected signal is transferred into test equipment 30;
Test equipment 30 receives the reflected signal and determines antenna 11 according to the test signal and the reflected signal Parameter.
Test circuit 12 can be high pass circuit, low pass circuit, with any one in resistance circuit.Preferably, test electricity The passband on road 12 is outside the working band of antenna 11, and the frequency of test signal is the frequency outside the working band of antenna 11 Rate.
As seen from the above, tested compared to needing wireless terminal being placed in test environment in the prior art and It is required that the position that antenna is placed in test environment is very accurate, according to the system of antenna measurement provided by the invention, by nothing Line terminal inner sets test circuit to connect the test equipment outside antenna and wireless terminal to carry out antenna measurement, can avoid Because false failure rate is high caused by test condition requires the reason such as harshness the problem of, therefore, it is possible to reduce the false failure rate of antenna measurement.
As shown in figure 3, in the variant embodiment of the embodiment of the present invention three, the system of the antenna measurement also includes tuning Circuit, one end electrical connection test circuit 12 of the tuning circuit 31, other end electrical connection test equipment 30;Tuning circuit 31 is used In:Optimize the reflected signal.Using by tuning circuit 31 optimization after reflected signal, when test equipment 30 is tested The detection waveform of display screen display thereon becomes more preferable, therefore test equipment 30 can determine the higher antenna of precision Parameter.
As shown in figure 4, the embodiment of the present invention four is the specific embodiment of the embodiment of the present invention three and its variant embodiment, In system shown in Fig. 4, wireless terminal 10 is electrically connected by interface 14 with tuning circuit 31, and tuning circuit 31 passes through coaxial cable 41 electrically connect with test equipment 30, the general purpose interface bus of test equipment 30 (General Purpose Interface Bus, GPIB) 43 electrically connected with computer 42.In the present embodiment, interface 14 is by taking usb 14 as an example, and test equipment 30 is with network point Exemplified by analyzer 30.
In wireless terminal 10, on pin of the test circuit 12 by PCB trace to usb 14, usb 14 is utilized Pin serve as the bridge of the transfer of antenna 11, when the reflected signal of antenna 111 (or antenna 112) reaches USB by PCB impedance lines After interface 14, using the waveform of higher order resonances caused by antenna 111 (or antenna 112) itself, finally on Network Analyzer 30 It has been shown that, carry out the measurement of such as return loss or voltage standing wave ratio index.
Computer 42 reads the return loss of Network Analyzer 30 or the number of voltage standing wave ratio by general purpose interface bus 43 Value, and judge that the numerical value whether in the range of setting, adjudicates the uniformity of antenna performance so as to fast and stable, Reach the purpose of detection antenna.Tested and wanted compared to needing wireless terminal being placed in test environment in the prior art The position for asking antenna to be placed in test environment is very accurate, according to the system of antenna measurement provided by the invention, can avoid because Test condition requires the problem of false failure rates caused by reason such as harshness are high, therefore, it is possible to reduce the false failure rate of antenna measurement.
As seen from the above, because using antenna passive detection scheme, (test signal is set by the test outside wireless terminal Preparation goes out), relative to prior art, using antenna active detection scheme, (test signal is sent out by the radio-frequency module inside wireless terminal Go out), the workload of software can be reduced, without for going to write corresponding AT orders per a product.Moreover, from whole operation mistake Come from the point of view of, from insertion USB, start AT orders, to from the point of view of the cycle of program end of run, detection time obtains relative to prior art To being significantly reduced, therefore production efficiency can be improved.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.

Claims (10)

1. a kind of method of antenna measurement, applied to wireless terminal, the wireless terminal includes antenna, it is characterised in that described Wireless terminal also includes test circuit, and one end of the test circuit electrically connects the antenna, and other end electrical connection is described wireless The test equipment of exterior of terminal, methods described include:
The test circuit receives the test signal that the test equipment is sent, and the test signal is transferred into the day Line;
The test circuit is received as antenna-reflected reflected signal corresponding with the test signal, and by the reflection Signal is transferred to the test equipment, so that the test equipment is according to determining the test signal and the reflected signal The parameter of antenna;
Wherein, for the passband of the test circuit outside the working band of the antenna, the frequency of the test signal is institute State the frequency outside the working band of antenna.
2. according to the method for claim 1, it is characterised in that the test circuit includes high pass circuit, low pass circuit, band Any one in resistance circuit.
3. method according to claim 1 or 2, it is characterised in that the parameter includes at least one following parameter:Echo Loss, voltage standing wave ratio.
4. a kind of wireless terminal, the wireless terminal includes antenna, it is characterised in that the wireless terminal also includes test electricity Road, one end electrical connection antenna of the test circuit, the other end electrically connect the test equipment outside the wireless terminal;
The test circuit, the test signal for receiving and sending the test equipment are transferred to the antenna;
The antenna, for receiving the test signal, and reflect reflected signal corresponding with the test signal;
The test circuit is additionally operable to:Receive and the reflected signal of the antenna is transferred to the test equipment, so that described Test equipment determines the parameter of the antenna according to the test signal and the reflected signal;
Wherein, for the passband of the test circuit outside the working band of the antenna, the frequency of the test signal is institute State the frequency outside the working band of antenna.
5. wireless terminal according to claim 4, it is characterised in that the test circuit includes high pass circuit, low pass electricity Road, with any one in resistance circuit.
6. wireless terminal according to claim 5, it is characterised in that the test circuit includes at least one set of test electricity Road, the antenna are an at least antenna, and the test circuit corresponds with the antenna, and the passband of the test circuit Outside the working band of antenna of the band corresponding to it;
The test circuit, the test signal for receiving and sending the test equipment are transferred to corresponding antenna;
The antenna, for receiving the test signal, and reflect reflected signal corresponding with the test signal;
The test circuit is additionally operable to:Receive and the reflected signal of corresponding antenna is transferred to the test equipment, so that institute State the parameter that test equipment determines the antenna according to the test signal and the reflected signal.
7. wireless terminal according to claim 5, it is characterised in that the test circuit is an adjustable survey of passband Circuit is tried, the antenna is more antennas;
The test circuit, the test signal for receiving and sending the test equipment is transferred to antenna to be measured, described to treat Observation line is the current antenna tested in the more antennas;
The antenna to be measured, for receiving the test signal, and reflect reflected signal corresponding with the test signal;
The test circuit is additionally operable to:Receive and the reflected signal of the antenna to be measured is transferred to the test equipment, so that The test equipment determines the parameter of the antenna according to the test signal and the reflected signal;
Wherein, the passband adjustment of the test circuit is outside the working band of the antenna to be measured.
8. according to any described wireless terminal of claim 4 to 7, it is characterised in that the wireless terminal also includes interface, uses In the electrical connection test circuit and the test equipment.
9. a kind of system of antenna measurement, including wireless terminal and test equipment, the wireless terminal includes antenna, and its feature exists In the wireless terminal also includes test circuit, and one end of the test circuit electrically connects the antenna, other end electrical connection institute State test equipment;
The test equipment sends test signal;
The test circuit receives and the test signal is transferred into the antenna;
The antenna receives the test signal, and reflects reflected signal corresponding with the test signal;
The test circuit receives and the reflected signal is transferred into the test equipment;
The test equipment receives the reflected signal and determines the antenna according to the test signal and the reflected signal Parameter;
Wherein, for the passband of the test circuit outside the working band of the antenna, the frequency of the test signal is institute State the frequency outside the working band of antenna.
10. system according to claim 9, it is characterised in that the system also includes tuning circuit, the tuning circuit One end electrically connect the test circuit, the other end electrically connects the test equipment;
The tuning circuit is used for:Optimize the reflected signal.
CN201310750806.8A 2013-12-31 2013-12-31 The method and system and wireless terminal of a kind of antenna measurement Active CN103728502B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310750806.8A CN103728502B (en) 2013-12-31 2013-12-31 The method and system and wireless terminal of a kind of antenna measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310750806.8A CN103728502B (en) 2013-12-31 2013-12-31 The method and system and wireless terminal of a kind of antenna measurement

Publications (2)

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