TWI748174B - Electronic detection composite antenna - Google Patents

Abstract

The present invention is an electronic detecting composite antenna. The antenna uses two antenna elements to be arranged on the two sides of the circuit system of the electronic device, and then a radio frequency performance compensation system is arranged on the circuit system. At least one sensor coil is used to detect through the induction coil. If any antenna unit is subjected to external interference, the signal is attenuated, and the control unit is notified through the RF performance compensation system, which can instantly drive any antenna matching circuit to switch the operation of the undisturbed antenna unit, or change it in real time. Adjust the antenna power or adjust the matching between the antenna and the external environment to achieve the purpose of stably transmitting the radio frequency signal through the antenna unit without external interference by the preset electronic device, and maintaining the better power of the radio frequency signal transmission.

Description

Electronic detection composite antenna

The present invention provides an electronic detection composite antenna, especially an antenna device that can detect antenna signal attenuation and switch the operation of different antennas, detects the signal attenuation of any antenna unit through a sensor coil, and uses a radio frequency performance compensation system, The radio frequency control unit and the antenna matching circuit switch the operation of the undisturbed antenna unit, or change and adjust the antenna power or antenna matching parameters in real time to achieve the purpose of stably transmitting the radio frequency signal.

【Related Application Cases】

The present invention is a division of Taiwan Patent Application No. 107117589 (application date: May 23, 1987). The complete content of the application is incorporated into this invention patent specification for reference.

Press, with the continuous progress of the electronic technology industry and the vigorous development of the wireless communication industry, many electronic/electrical products used in daily life also transmit signals through wireless transmission methods, such as smart phones and global mobile communications. System (GSM), personal digital assistant (PDA) or computer and peripheral equipment and wireless network, notebook computer and wireless network and other electronic communication products or mobile devices, and in all kinds of electronic communication products or mobile devices Antennas play a very important role, and antenna applications such as Monopole, Planar Inverted-F Antenna (PIFA, Planar Inverted-F Antenna) or Dipole antennas are used as electronic communication products. The built-in antenna can be used to transmit radio frequency signals. The general radio frequency identification (RFID) system is built to increase the read range in an area and reduce the number of radio frequency identification readers. The industry uses radio frequency identification readers with multiple output ports in electronic communication products and mobile devices, or adds an automatic backup mode in the design of radio frequency identification systems, through the use of each radio frequency identification reader (antenna) If a set of spare radio frequency identification readers (antennas) are added to the setting position of the electronic communication product, when the radio frequency identification reader of the electronic communication product has a problem, there is no signal or weak signal in the mountainous area, far away from the base station, shielded by shielding or When the radio frequency signal cannot be transmitted normally due to the influence of external interference such as surrounding metal objects, the system unit judges that the antenna transmission signal is not good according to the Linking Quality (Linking Quality) mechanism, and it will take a while to get the result. , And then switch to a spare antenna, which will affect the speed and quality of RF signal transmission. However, before switching the antenna, the signal transmission status caused by external interference cannot be judged. The antenna switching application is only performed when the signal is poor. Whether the signal transmission quality of another antenna after switching is better than that of the original antenna, or it may happen that the signal transmission quality after switching to another antenna is worse, and it is impossible to control whether the signal transmission quality after switching the antenna is good or bad , It is necessary to switch between different antennas repeatedly to find one of the better antennas, that is, the quality of signal transmission cannot be improved in a short time; however, if two sets of radio frequency identification readers (antennas) are connected to the same antenna module, A two-to-one RF switch must be set up to switch the operation of the two sets of RF ID readers. However, the current RF ID reader specifications on the market include single-port, dual-port, four-port, or eight-port types. In actual applications, the same specifications of RF switches are used, but the controllers, transmission interfaces, and operation keys they have will increase the cost of hardware equipment. If a larger specification of RF switches (such as four-port or eight-port Etc.), but the readers with a relative number of output antennas were not applied in actual application, which also caused the negative cost of excess costs. This means that the cost of electronic communication products will increase. By setting up RF switching modules in electronic communication products, switching control is performed to determine the transmitted RF signal power, and the power amplifier is used to compensate for the transmission power of the RF signal. Make the transmission power of the RF signal consistent with the predetermined power value to reduce the signal attenuation caused by the influence of no signal, weak signal, or surrounding metal objects, but such compensation requires more system resources and time to repeat. Adjusting the predetermined power value will cause the RF switching module to generate heat due to the increase in power, and the increased power of the RF signal transmission is also limited, which will reduce the service life of the switching module and electronic communication products.

In addition, various electronic communication products, mobile devices, etc., because of different product design requirements, and the outer shell is made of insulating materials (such as plastic, etc.) or metal materials, etc., the antennas used with them have different impedance values, and the matched antennas The type is also different. For electronic communication products and mobile devices with metal casings, the waveform of the high-frequency circuit system after being superimposed by the metal reflection signal is changed by dynamically adjusting the digital adjustable capacitor method (DTC). It tends to be ideal, but when it is affected by external interference, the power and matching of antenna applications cannot be improved or adjusted in real time. There are still many problems that need to be improved in actual implementation.

Therefore, how to solve the problem and trouble that the radio frequency identification reader (transmission antenna) of the current electronic communication products is susceptible to external influences and the power drop, and when applied to the radio frequency identification reader, it can provide the best signal solution to the antenna in real time To operate and reduce the consumption of system time and efficiency is the direction that relevant manufacturers in this industry urgently want to study and improve.

Therefore, in view of the above-mentioned problems and deficiencies, the inventor collected relevant information, evaluated and considered from many parties, and based on the accumulated years of experience in this industry, through continuous trials and modifications, he designed this type of automatic sensor coil. Detect antenna signal attenuation, and then switch the antenna device of different antenna operations in real time. Or, detect the signal attenuation of the antenna unit through the sensor coil, and adjust the antenna power or antenna matching in real time through the RF performance compensation system to achieve the electronic detection composite antenna for the purpose of stably transmitting the RF signal.

The main purpose of the present invention is that the antenna uses two antenna units to be arranged on the two sides of the circuit system of the preset electronic device, and at least one sensor coil is arranged on the circuit system to detect the strength of the transmission signal of the two antenna units respectively (compared to The number of sensor coils of the best series can be the same as the number of antenna units. For example, the two antenna units on both sides of the circuit system are each equipped with a sensor coil to more accurately detect the strength of the transmission signal of each antenna unit), and then detect Any antenna unit is subject to external interference, that is, the detection signal that causes signal attenuation due to changes in external environmental parameters, is sent to the RF performance compensation system, and the detection signal is sent to the RF control unit through the RF performance compensation system, which can be The control unit drives the antenna matching circuit with better signal operation on both sides of the circuit system to switch the operation of the other antenna unit that is not affected by external interference and the external environment parameters have not changed, so as to achieve the stability of the preset electronic device through the antenna unit without external interference The purpose of transmitting radio frequency signals is to maintain the better power and quality of radio frequency signal transmission. Or, the antenna device uses at least one sensor coil to detect that the transmission signal is affected by external environmental parameters, such as: the transmission signal is attenuated or external interference is found, and the detection result is sent to the RF performance compensation system (or called the master Unit system), and then further adjust or increase the power to the antenna matching circuit through the radio frequency performance compensation system, or further adjust the adjustable capacitor method to change the antenna matching, so that the antenna device transmission signal eventually tends to be ideal.

The secondary purpose of the present invention is that the preset electronic device is a smart phone or a tablet computer, so that two antenna units are respectively arranged on two opposite sides of the internal circuit system of the preset electronic device, and at least one sensor coil is used It is installed between the two antenna units of the circuit system or on the side of the two antenna units of the circuit system to detect the weakening of the radio frequency signal caused by the external interference of each antenna unit. The external interference is close to the periphery of the preset electronic device The metal objects cause changes in external environmental parameters.

Another purpose of the present invention is that the RF performance compensation system (or called the main unit system) can be a central processing unit, a microprocessor or a chip, etc., and is provided with a built-in drive RF control unit to switch the operation of any antenna Program etc. Or, the RF performance compensation system (or the main unit system) can be a central processing unit, microprocessor or chip, etc., and is equipped with a built-in program that can adjust the antenna power or adjust the adjustable capacitor (DTC) in real time, so that The antenna signal operation tends to be ideal.

Another object of the present invention is that the antenna includes at least one antenna unit, at least one sensing coil electrically connected to the at least one antenna unit, a sensing unit electrically connected to the at least one sensing coil, and at least one antenna matching circuit And the radio frequency control unit, when detecting whether any antenna unit is affected by changes in external environmental parameters (such as being in a remote mountain area or close to external metal objects and being affected by interference and other factors), it can be controlled by the radio frequency control unit (RF Unit) Any antenna matching circuit transmits a power adjustment command to increase power, and transmits it to at least one sensing coil (Inductive sensing), that is, through at least one sensing coil and two inductive sensing coils in cooperation with the sensing unit, any antenna can be effectively provided The detection range of the unit (RF Antenna) is expanded, and power is added to any antenna matching circuit to further increase the transmission power of any antenna unit to achieve the purpose of real-time gain of the transmission power of any antenna unit, regardless of external environmental factors Changes affect the power and quality of radio frequency signal transmission, which can continuously and stably transmit radio frequency signals.

1‧‧‧Antenna unit

11‧‧‧Antenna matching circuit

2‧‧‧Antenna unit

21‧‧‧Antenna matching circuit

3‧‧‧Sensing coil

31‧‧‧Wireless communication module

31a‧‧‧sensing unit

32‧‧‧The first induction coil

33‧‧‧Second induction coil

4‧‧‧RF performance compensation system

41‧‧‧Switching unit

42‧‧‧Adjustable capacitor

5‧‧‧RF control unit

6‧‧‧Electronic device

The first figure is a simplified block diagram of the antenna of the present invention.

The second figure is a simplified block diagram of the preferred embodiment of the present invention.

The third figure is a simplified block diagram of another embodiment of the present invention.

The fourth figure is a simple circuit block diagram of the sensor coil of the present invention.

The fifth figure is a design drawing of the first embodiment of the sensing coil of the present invention.

The sixth figure is a design diagram of the second embodiment of the sensor coil of the present invention.

The seventh figure is a flowchart of the antenna adjustment method of the present invention.

Figure 8 is a simplified block diagram of the first embodiment of the present invention.

The ninth figure is a simplified block diagram of the second embodiment of the present invention.

Figure 10 is a simplified block diagram of the third embodiment of the present invention.

Figure 11 is a simplified block diagram of the fourth embodiment of the present invention.

Figure 12 is a simplified circuit diagram of the fourth embodiment of the present invention.

In order to achieve the above-mentioned objectives and effects, the technical means adopted by the present invention, its structure, and the method of implementation, etc., are drawn to illustrate the characteristics and functions of the preferred embodiments of the present invention in detail as follows, so as to fully understand.

Please refer to Figures 1, 2, 3, 4, 5 and 6, which are a simple block diagram of the antenna of the present invention, a simple block diagram of a preferred embodiment, a simple block diagram of another embodiment, and a diagram of the sensor coil The simple circuit block diagram, the design drawing of the first embodiment of the sensing coil, and the design drawing of the second embodiment of the sensing coil, it can be clearly seen from the figures that the electronic detection composite antenna of the present invention includes two days Line units 1, 2 have at least one sensing coil 3, radio frequency performance compensation system 4, radio frequency control unit 5, and two antenna matching circuits 11, 21, wherein: the two antenna units (RF Antenna) 1, 2 are respectively connected with antennas Matching circuit (Antenna Maching Circuit) 11, 21.

The at least one sensing coil 3 (Inductive sensing) is electrically connected with a System Compensate RF performance (System Compensate RF performance) 4 that receives the detection signal.

The RF performance compensation system 4 can be a central processing unit (CPU), microprocessor or chip, etc., and can be built-in predetermined application programs or drivers, etc., and further drive the RF unit 5 (RF Unit) for switching or selection The one with the better signal among the two antenna units 1 and 2 performs wireless signal transmission. Or, use a built-in predetermined application program or driver to further increase power to the antenna matching circuit 11, 21 or dynamically adjust the adjustable capacitance value (DTC), so that the wireless transmission quality of any antenna unit 1, 2 tends to be ideal.

In the application of the above components, the two antenna units 1 and 2 are respectively arranged on the two sides of the preset electronic device 6 (housing or circuit system, etc.), and at least one sensing coil 3 and radio frequency performance compensation system 4 are provided respectively. Set on the preset circuit system, at least one sensing coil 3 is electrically connected to the two antenna units 1, 2 respectively (the number of sensing coils can also be the same as the number of antenna units, for example: two sensing coils are respectively set on the two antenna units On one side, to more accurately detect the strength of each antenna unit transmission signal), and the radio frequency performance compensation system 4 is electrically connected to at least one sensing coil 3 and radio frequency control unit 5, that is, through the radio frequency control unit 5. Connected to the antenna matching circuits 11, 21, at least one sensing coil 3 can be used to sense and detect the strength or weakness of the two antenna units 1, 2 for transmitting the radio frequency signal, and then transmit the detected radio frequency signal result to the radio frequency The performance compensation system 4 is transmitted to the RF control unit 5 through the RF performance compensation system 4, and the RF control unit 5 is used to select and control any antenna matching circuit 11, 21, and then switch the operation of any antenna unit 1, 2 to use the two antennas Units 1, 2, and two antenna matching circuits 11, 21, at least one sensing coil 3, radio frequency performance compensation system 4, and radio frequency control unit 5 constitute the electronic detection composite antenna of the present invention.

The above-mentioned preset electronic device 6 can be various mobile devices or electronic communication products such as smart phones or tablet computers, for the two antenna units 1, 2 and the two antenna matching circuits 11, 21 to be installed in the preset electronic devices. The two opposite sides (housing or circuit system, etc.) of the device 6; a sensing coil 3 (as shown in the embodiment shown in the third figure) can be arranged between the two antenna units 1 and 2, with a sensing coil 3 Detect the transmission of radio frequency signals by the two antenna units 1 and 2; or separately install the sensing coils 3 on the sides of the two antenna units 1 and 2 (as shown in the embodiment shown in the second figure), and use the two sensing coils 3 respectively Detect the transmission of radio frequency signals by the two antenna units 1, 2 and determine whether the two antenna units 1, 2 are interfered by external metal objects, and then switch through the radio frequency control unit 5 by selecting different antenna matching circuits 11, 21 In the application of two different antenna units 1 and 2, any antenna unit 1 or antenna unit 2 that is not interfered by metal objects is used to transmit radio frequency signals.

Furthermore, the aforementioned at least one sensing coil 3 includes a wireless communication module 31 and a first induction coil 32 and a second induction coil 33 electrically connected to the wireless communication module 31, and the wireless communication module 31 can use the first The induction coil 32 detects the radio frequency signal (TX) sent by any of the antenna units 1, 2 and the second induction coil 33 detects the radio frequency signal (RX) received by any of the antenna units 1, 2 according to the wireless communication module 31. Measure the power of any antenna unit 1 and 2 for transmitting or receiving RF signals, determine whether any antenna unit 1 or 2 is interfered by a metal object outside, and transmit the detection signal to the RF control unit 5 through the RF performance compensation system 4 , That is, the radio frequency control unit 5 transmits the control signal (CTRL) to any antenna matching circuit 11, 21 to switch the electrical connection between any antenna matching circuit 11, 21 and any antenna unit 1, 2, and Any antenna unit 1, 2 that is not close to metal objects or interfered from the outside can transmit or receive radio frequency signals, that is, it can pass through at least one induction coil 3, and it can be judged whether any antenna unit 1, 2 is close to the outside in real time. When metal objects are interfered, the radio frequency performance compensation system 4 and the radio frequency control unit 5 can quickly switch any antenna unit by switching the electrical connection between any antenna matching circuit 11, 21 and any antenna unit 1, 2 The function of 1, 2 to transmit radio frequency signals to maintain the power of the preset electronic device 6 to transmit radio frequency signals stably.

Please refer to Figures 1, 2, 3, 4 and 7, which are the simple block diagram of the antenna of the present invention, the simple block diagram of the preferred embodiment, the simple block diagram of another embodiment, and the simple circuit of the sensing coil The block diagram and the flow chart of the antenna adjustment method can be clearly seen from the figure. The electronic detection composite antenna of the present invention includes two antenna units 1, 2, at least one sensing coil 3, and a radio frequency performance compensation system 4. , The radio frequency control unit 5 and the two antenna matching circuits 11, 21, and the steps of the antenna signal adjustment method are:

(A1) Use at least one sensing coil 3 to detect the two antenna units 1 and 2 installed on the preset electronic device 6 respectively, when any antenna unit 1 (or antenna unit 2) is subject to external interference and external environmental parameters The change causes the antenna unit 1 (or antenna unit 2) to attenuate the transmission radio frequency signal.

(A2) At least one sensing coil 3 will detect the attenuation signal of any antenna unit 1 (or antenna unit 2) and transmit it to the RF performance compensation system 4.

(A3) The radio frequency performance compensation system 4 is used to transmit the detection signal to the radio frequency control unit 5.

(A4) The radio frequency control unit 5 uses a built-in program to drive any antenna matching circuit 11 (or antenna matching circuit 21), and through any antenna matching circuit 21 (or antenna matching circuit 11) to switch without external interference and external environment The other antenna unit 2 (or antenna unit 1) whose parameters have not changed operates.

(A5) Provide a preset electronic device 6 through another antenna unit 2 (or antenna unit 1) for stable reception of radio frequency signal transmission, so as to maintain better power and quality of radio frequency signal transmission.

The above-mentioned changes in the external environmental parameters of the preset electronic device 6, for example, when approaching a metal object, the external environmental parameters change, which affects the antenna units 1, 2 on both sides of the preset electronic device 6 (housing or electronic circuit system, etc.) Affected, it will cause the antenna unit 1 (or antenna unit 2) close to the metal object to reduce and attenuate the power of the radio frequency signal. Then the at least one sensor coil 3 wireless communication module 31 can use the first induction coil 32 to detect Measure any antenna unit 1 (or antenna unit 2) to transmit radio frequency signals (TX), and use the second induction coil 33 to detect any antenna unit 1 (or antenna unit 2) to receive radio frequency signals (RX), according to wireless communication The module 31 detects the power of any antenna unit 1 (or antenna unit 2) for transmitting or receiving radio frequency signals, determines whether any antenna unit 1 (or antenna unit 2) is close to an external metal object and is interfered, and transmits radio frequency performance The compensation system 4 transmits the detection signal to the radio frequency control unit 5, that is, the radio frequency control unit 5 transmits the control signal (CTRL) to any antenna matching circuit 11 (or antenna matching circuit 21) to switch any antenna matching circuit 11 (or The electrical connection between the antenna matching circuit 21) and any antenna unit 1 (or antenna unit 2), and another antenna matching circuit 21 (or antenna matching circuit 11) is switched from the outside to the metal object and is not interfered The other antenna unit 2 (or antenna unit 1) transmits or receives radio frequency signals without affecting the power of the preset electronic device 6 to transmit radio frequency signals, and can still transmit radio frequency signals stably. In addition, in each embodiment of the present invention, there is no restriction on the geometric shape of any antenna element 1 and 2, whether it is square or elliptical, or the shape of the embodiment shown in Figure 5 or Figure 6, but only The requirement is that the antenna structure is formed by a combination of two induction coils 32 and 33 and the wire lengths of the two induction coils 32 and 33 are equal.

Please also refer to Figures 1 and 8, which are a simple block diagram of the antenna of the present invention and a simple block diagram of the first embodiment. As shown in the figure, it can be clearly seen that the electronic detection composite antenna of the present invention is It includes at least one antenna unit 1 (2), at least one sensor coil 3, radio frequency performance compensation system 4, radio frequency control unit 5 and at least one antenna matching circuit 11 (21), which is applied to a communication interface (that is, antenna unit 1 (2) )] preset electronic device 6, when at least one sensing coil 3 (Inductive sensing) detects that any antenna unit 1 (RF Antenna) [or antenna unit 2] is affected by changes in external environmental parameters (close to an external metal object and suffer The influence caused by interference and other factors), that is, the detection signal is transmitted to the RF unit 5 (RF Unit) through the RF performance compensation system 4 (System Compensate RF performance), and the RF performance compensation system 4 is used to match any antenna circuit 11 [Or antenna matching circuit 21] increase the power to further increase the transmission power of any antenna unit 1 [or antenna unit 2] to achieve the purpose of real-time gain of any antenna unit 1 and 2 transmitting radio frequency signal power, independent of external environmental factors Changes affect the power and quality of radio frequency signal transmission, which can continuously and stably transmit radio frequency signals.

Please refer to the first and ninth figures, which are a simple block diagram of the antenna of the present invention and a simple block diagram of the second embodiment. From the figures, it can be clearly seen that the electronic detection composite antenna of the present invention is applied The default electronic device 6 in a mobile device (such as a smartphone or tablet computer that currently uses the 4G technical characteristics of the LTE system for transmission) includes two antenna units 1, 2 at least one sensing coil 3, and a radio frequency performance compensation system 4 And the switching unit 41, the radio frequency control unit 5, and the two antenna matching circuits 11, 21, and when at least one sensing coil 3 (Inductive sensing) detects that any antenna unit 1 (RF Antenna) (or antenna unit 2) is exposed to the external environment When the parameter changes and the proximity of a metal object is interfered, the antenna unit 1 (or antenna unit 2) of the mobile device can be detected immediately through at least one sensor coil 3, which is affected by the interference of the external metal object, and through the radio frequency performance The compensation system 4 (System Compensate RF performance) transmits the detection signal to the radio frequency control unit 5 (RF Unit) to control the switching unit 41 (RF Switch) to switch to another antenna unit 2 (or antenna unit 1). The interfering antenna unit 2 (or antenna unit 1) transmits radio frequency signals without being repeatedly switched by the switching unit 41, and it can detect the undisturbed antenna unit 2 (or antenna unit) in real time. 1) Carry out stable radio frequency signal transmission, and the power of radio frequency signal transmission will not be affected.

Please refer to the first and tenth figures, which are a simple block diagram of the antenna of the present invention and a simple block diagram of the third embodiment. From the figures, it can be clearly seen that the electronic detection composite antenna of the present invention is applied The preset electronic device 6 of a mobile device (such as a smart phone or a tablet computer, etc.) with a digitally adjustable capacitor (dynamically changing matching parameters or changing impedance matching) includes at least one antenna unit 1 (or antenna unit 2), At least one sensing coil 3, radio frequency performance compensation system 4 and adjustable capacitor 42, radio frequency control unit 5, and at least one antenna matching circuit 11 (or antenna matching circuit 21), due to the different design of the external housing of the mobile device, such as insulation When the housing is made of different types of materials (plastic) or metal, the matching parameters, capacitance impedance and other types of the antenna units 1 and 2 used in the mobile device will be different for the at least one sensing coil of the present invention 3(Inductive sensing) can be based on the different housing design of the mobile device, such as insulating material (plastic) or metal material, etc., and the capacitance impedance value of different environmental parameters is preset in the adjustable capacitor 42, and then at least one sensing coil 3 Detect any antenna unit 1 (or antenna unit 2) that is affected by changes in external environmental parameters, close to metal objects and interference, and then transmits the detection signal to the RF control unit 5 through the RF performance compensation system 4, and transmits it at the same time An adjustment command is given to the adjustable capacitor 42 to instruct it to adjust the capacitance value or the capacitance impedance matching value, and then the radio frequency control unit 5 is used to instantly control the capacitance impedance matching change of the adjustable capacitor 42 to an ideal value, and finally through any antenna matching circuit 11 (or antenna matching circuit 21) allows any antenna unit 1 to maintain a good radio frequency signal transmission power performance, thereby stably transmitting radio frequency signals.

Please refer to Figures 11 and 12, which are simple block diagrams and simple circuit diagrams of the fourth embodiment of the invention. It can be clearly seen from the figures that the electronic detection composite antenna of the present invention includes at least one day Line unit 1 (2), at least one sensing coil 3 electrically connected to at least one antenna unit 1 (2), sensing unit 31a electrically connected to at least one sensing coil 3, at least one antenna matching circuit 11 (21 ) And the radio frequency control unit 5 are applied to a preset electronic device 6 having a communication interface (ie, antenna unit 1(2)), and the at least one sensor coil 3 includes two induction coils 32, 33 electrically connected to Between at least one antenna unit 1 (2) and the antenna matching circuit 11 (21), and the other two pins (TX0, TX1 and RX0, RX1) of the two induction coils 32 and 33 are respectively electrically connected to the sensing unit 31a ; When detecting whether any antenna unit 1 (2) is affected by changes in external environmental parameters (such as being located in remote mountainous areas, inside buildings, far away from the base station area, or close to external metal objects due to interference and other factors), The radio frequency control unit 5 (RF Unit) can control any antenna matching circuit 11 (21) to transmit a power adjustment command to increase power, and any antenna matching circuit 11 (21) transmits the signal of increasing power to at least one sensor coil 3 (Inductive sensing), that is, through at least one sensing coil 3, the two induction coils 32, 33 cooperate with the sensing unit 31a, which can effectively provide any antenna unit 1 (RF Antenna) (or antenna unit 2) with an extended detection range , And increase the power of any antenna matching circuit 11 [or antenna matching circuit 21] to further increase the transmission power of any antenna unit 1 [or antenna unit 2] to achieve instant gain for any antenna unit 1 and 2 to transmit radio frequency signals The purpose of power is not to affect the power and quality of radio frequency signal transmission due to changes in external environmental factors, so that radio frequency signals can be continuously and stably transmitted.

The signal adjustment method of the electronic detection composite antenna, the steps of the signal adjustment method are:

(A01) The sensing coil 3 is used to detect the antenna units 1 and 2 on the two sides of the circuit system installed in the preset electronic device 6. When any antenna unit 1 (2) is subject to external interference, the antenna unit 1 (2) Attenuation of the transmitted RF signal occurs.

(A02) The sensing coil 3 detects the attenuation detection signal of the antenna unit 1 (2), and transmits it to the radio frequency performance compensation system 4.

(A03) The radio frequency performance compensation system 4 transmits the detection signal result to the radio frequency control unit 5.

(A04) The radio frequency control unit 5 uses a built-in program to drive and adjust the default electronic device 6 to a better application mode to stabilize the radio frequency signal transmission effect.

The preset electronic device 6 in the above step (A01) can be a smart phone or a tablet computer.

In addition, the sensing coil 3 in the above step (A02) is arranged between the antenna unit 1 (2) and the antenna matching circuit 11 (21), and is electrically connected to a sensing unit 31a.

In addition, the radio frequency performance compensation system 4 in the above step (A03) can be a central processing unit, a microprocessor, or a chip.

As for the application mode of the above step (A04), the RF signal is stabilized by switching any antenna unit 1 (2) mode, or the application mode is the RF signal by varying the adjustable capacitive impedance.

Therefore, the above descriptions are only preferred embodiments of the present invention and do not limit the scope of the present invention. The electronic detection composite antenna of the present invention uses two antenna elements 1, 2, and at least one sensing coil 3. Set on the circuit system of the preset electronic device 6, the two antenna units 1 and 2 are respectively located on the two sides of the circuit system, and at least one sensing coil 3 is electrically connected to the radio frequency performance compensation system 4, through the radio frequency performance compensation system 4 Connected to the radio frequency control unit 5, the radio frequency control unit 5 is electrically connected to the two antenna units 1, 2 and the two antenna matching circuits 11, 21, and detects any antenna unit 1 (or antenna unit 2) transmission through at least one sensing coil 3 The RF signal power is reduced and attenuated. At least one sensing coil 3 transmits the detection signal to the RF performance compensation system 4, so that the RF performance compensation system 4 transmits the signal to the RF control unit 5, and controls another antenna through the RF control unit 5 The matching circuit 21 switches the operation of another antenna unit 2; or, for the radio frequency performance compensation system 4 to further transmit a power adjustment command to any antenna matching circuit 11, 21 to dynamically increase the antenna power of any antenna unit 1, 2 in real time Or, for the radio frequency performance compensation system 4 to further transmit a capacitance impedance matching adjustment command to the adjustable capacitor 42, for the radio frequency control unit 5 to immediately adjust the capacitance impedance matching to an ideal value, and finally drive any antenna matching circuit 11 , 21 and antenna units 1, 2, so that the preset electronic device 6 can effectively maintain the power of transmitting radio frequency signals, and the practical effect of stable radio frequency signal transmission without being affected by changes in external environmental parameters, so the aforementioned can be achieved The structure and device of the effect shall be covered by the present invention, and such simple modification and equivalent structural changes shall be included in the patent scope of the present invention for the same reason, and shall be stated.

Therefore, the present invention is mainly designed for the electronic detection composite antenna, which uses two antenna units and two antenna matching circuits to be respectively arranged on the two sides of the circuit system of the preset electronic device, and at least one sensor is arranged on the circuit system. The coil is electrically connected to the radio frequency performance compensation system and the radio frequency control unit, and the radio frequency control unit is electrically connected to the two antenna matching circuits, that is, through at least one sensing coil to detect any antenna unit's external influence and external environmental parameters The change causes the power of the transmitted radio frequency signal to be reduced and attenuated. At least one sensing coil transmits the detection signal to the radio frequency performance compensation system and to the radio frequency control unit. The radio frequency control unit switches the operation of another antenna through another antenna matching circuit. , And can achieve the pre-designed electronic device to maintain good radio frequency signal transmission as the main protection focus, and is not affected by external influences and environmental parameter changes. It is only for the purpose of maintaining the normal radio frequency signal transmission power of the pre-designed electronic device, which has excellent practicability. However, the above description is only the preferred embodiments of the present invention, which does not limit the patent scope of the present invention. Therefore, all simple modifications and equivalent structural changes made by using the description and drawings of the present invention should be the same. It is included in the scope of the patent of the present invention, and is hereby stated.

In summary, the above-mentioned electronic detection composite antenna of the present invention can indeed achieve its efficacy and purpose when actually implemented and implemented. Therefore, the present invention is a research and development with excellent practicability and meets the requirements of an invention patent application. Yan filed an application in accordance with the law, and I hope that the review committee will approve this case as soon as possible to ensure the inventor’s hard research and development and creation. If the review committee has any doubts, please feel free to write instructions.

1‧‧‧Antenna unit

11‧‧‧Antenna matching circuit

2‧‧‧Antenna unit

21‧‧‧Antenna matching circuit

3‧‧‧Sensing coil

4‧‧‧RF performance compensation system

5‧‧‧RF control unit

6‧‧‧Electronic device

Claims (3)

An electronic detecting composite antenna, which is in a preset electronic device, includes at least one antenna unit, at least one sensing coil, at least one sensing unit, at least one antenna matching circuit and radio frequency control unit, and is characterized by: the at least An antenna unit is arranged on one side of the preset electronic device; the at least one sensing coil is electrically connected to the at least one antenna unit, and is electrically connected to the sensing unit; the at least one antenna matching circuit is electrically connected Connected to the at least one sensing coil, and the at least one sensing coil includes two induction coils electrically connected between the at least one antenna unit and the at least one antenna matching unit, and two pins of the two induction coils Are respectively electrically connected to the sensing unit; and the radio frequency control unit is electrically connected to the antenna matching unit to control the at least one antenna matching unit to transmit a power adjustment command to the at least one sensor coil, thereby expanding the induction detection Measuring range. For example, the electronic detecting composite antenna described in item 1 of the scope of patent application, wherein the predetermined electronic device is a smart phone or a tablet computer. For example, the electronic detection composite antenna described in item 1 of the scope of patent application, wherein the sensor coil and the radio frequency control unit are more electrically connected to a radio frequency performance compensation system, and the radio frequency performance compensation system is a central processing unit, Microprocessor or chip.

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