阅读说明：本技术 一种微带相控天线的波束切换装置 (Wave beam switching device of microstrip phase-controlled antenna ) 是由 陈月彬 于 2021-08-30 设计创作，主要内容包括：本发明提出了一种微带相控天线的波束切换装置,包括：天线接收单元、双工器、天线发射单元、滤波电路、检测电路、模数转换电路、发射机、电源、信号处理器、波束切换开关、信号调理电路、功分器和移相器；天线接收单元与滤波电路连接,滤波电路与检测电路连接,以由检测电路对信号进行检测,检测电路与模数转换电路连接,模数转换电路与信号处理器连接,信号处理器与波束切换开关连接,发射机通过波束切换开关与信号调理电路连接,信号调理电路与功分器连接,功分器与移相器连接,移相器与天线发射单元连接,双工器分别与天线接收单元和天线发射单元连接；本发明波束切换效率高,响应速度快,能够满足用户对通话高质量的要求。(The invention provides a beam switching device of a microstrip phased antenna, which comprises: the device comprises an antenna receiving unit, a duplexer, an antenna transmitting unit, a filter circuit, a detection circuit, an analog-to-digital conversion circuit, a transmitter, a power supply, a signal processor, a beam change-over switch, a signal conditioning circuit, a power divider and a phase shifter; the antenna receiving unit is connected with the filter circuit, the filter circuit is connected with the detection circuit so as to detect signals by the detection circuit, the detection circuit is connected with the analog-digital conversion circuit, the analog-digital conversion circuit is connected with the signal processor, the signal processor is connected with the beam switch, the transmitter is connected with the signal conditioning circuit through the beam switch, the signal conditioning circuit is connected with the power divider, the power divider is connected with the phase shifter, the phase shifter is connected with the antenna transmitting unit, and the duplexer is respectively connected with the antenna receiving unit and the antenna transmitting unit; the invention has high beam switching efficiency and high response speed, and can meet the requirement of users on high call quality.)

1. A beam switching apparatus for a microstrip phased antenna, comprising: the device comprises an antenna receiving unit, a duplexer, an antenna transmitting unit, a filter circuit, a detection circuit, an analog-to-digital conversion circuit, a transmitter, a power supply, a signal processor, a beam change-over switch, a signal conditioning circuit, a power divider and a phase shifter; the antenna receiving unit is connected with the filter circuit, the filter circuit is connected with the detection circuit to detect signals by the detection circuit, the detection circuit is connected with the analog-to-digital conversion circuit, the analog-to-digital conversion circuit is connected with the signal processor, the detection circuit sends detected signals to the signal processor through the analog-to-digital conversion circuit, the signal processor is connected with the beam switch, the transmitter is connected with the signal conditioning circuit through the beam switch, the signal conditioning circuit is connected with the power divider, the power divider is connected with the phase shifter to condition signals transmitted by the transmitter by the signal conditioning circuit and then transmit the conditioned signals to the power divider, the phase shifter is connected with the antenna transmitting unit, and the duplexer is respectively connected with the antenna receiving unit and the antenna transmitting unit, so as to isolate the signals transmitted by the antenna transmitting unit from the signals received by the antenna receiving unit by the duplexer.

2. The beam switching apparatus of a microstrip phased antenna as claimed in claim 1, wherein: the signal conditioning circuit comprises twenty-first to thirty-second resistors, thirteenth to nineteenth capacitors, fifth to seventh diodes and fourth to sixth operational amplifiers, wherein one end of the twenty-first resistor is connected with one end of the twenty-second resistor and one end of the twenty-third resistor, a homodromous input end of the fourth operational amplifier is connected with the other end of the twenty-second resistor and one end of the thirteenth capacitor, an inverting input end of the fourth operational amplifier is connected with one end of the fourteenth capacitor, an output end of the fourth operational amplifier is connected with the other end of the thirteenth capacitor and one end of the twenty-fourth resistor, a homodromous input end of the fifth operational amplifier is connected with one end of the twenty-fifth resistor and the other end of the twenty-fourth resistor through the twenty-sixth resistor, and an inverting input end of the fifth operational amplifier is grounded through the twenty-seventh resistor, the other end of the twenty-fifth resistor is connected with the output end of the fifth operational amplifier and one end of the twenty-eighth resistor through the fifteenth capacitor, the other end of the twenty-eighth resistor is connected with one end of the sixteenth capacitor, one end of the seventeenth capacitor and one end of the twenty-ninth resistor, the other end of the sixteenth capacitor is connected with the output end of the sixth operational amplifier and one end of the thirty-second resistor through the thirty resistor, the same-direction input end of the sixth operational amplifier is connected with the other end of the twenty-ninth resistor through the eighteenth capacitor, the other end of the seventeenth capacitor is connected with the negative electrode of the fifth diode, the reverse-direction input end of the sixth operational amplifier is connected with one end of the thirty-first resistor, and the other end of the thirty-second resistor is connected with the positive electrode of the sixth diode, And the cathode of the seventh diode is connected with one end of the nineteenth capacitor.

3. The beam switching apparatus of a microstrip phased antenna as claimed in claim 1, wherein: the detection circuit comprises first to twentieth resistors, first to twelfth capacitors, first to fourth diodes, a first triode and first to third operational amplifiers, wherein a reverse input end of the first operational amplifier is connected with one end of the first resistor, a same-direction input end of the first operational amplifier is connected with one end of the second capacitor, the other end of the first resistor is connected with one end of the second resistor and one end of the first capacitor, a base electrode of the first triode is connected with the other end of the second resistor, a collector electrode of the first triode is connected with one end of the third capacitor, one end of the eighth resistor, a negative electrode of the first diode, a negative electrode of the second diode, one end of the twelfth resistor and one end of the thirteenth resistor, and an emitter electrode of the first triode is connected with the other end of the first capacitor, The other end of the third capacitor is connected with the other end of the eighth resistor, the output end of the first operational amplifier is connected with one end of the fourth capacitor through the fifth resistor, the other end of the fourth capacitor is connected with one end of the sixth resistor, the other end of the sixth resistor is connected with one ends of the seventh resistor and the fifth capacitor, the other end of the seventh resistor is connected with one end of the ninth resistor and the other end of the eighth resistor, the other end of the second capacitor is connected with one end of the fourth resistor through the third resistor, the other end of the fourth resistor is connected with the anode of the third diode, the other end of the fifth capacitor and one end of the sixth capacitor, the anode of the first diode is connected with one end of the seventh capacitor through the tenth resistor, and the anode of the second diode is connected with one end of the seventh capacitor through the eleventh resistor, the non-inverting input terminal of the second operational amplifier is connected to one end of the twelfth capacitor and one end of the eighth capacitor through the sixteenth resistor, and the other end of the twelfth capacitor is grounded through the eighth resistor, the ninth capacitor is connected in parallel with the nineteenth resistor, one end of the ninth capacitor in parallel is connected with the other end of the eighth capacitor, and the other end of the ninth capacitor in parallel is connected with the output end of the second operational amplifier and one end of the twentieth resistor.

4. The beam switching apparatus of a microstrip phased antenna as claimed in claim 1, wherein: the power supply comprises thirty-third to forty-third resistors, twenty-second to twenty-second capacitors, an eighth diode, a ninth diode, second to fourth triodes and an inductor, one end of the thirty-third resistor is connected with one end of the twentieth capacitor, one end of the forty-third resistor, one end of the thirty-fourth resistor and a collector of the second triode, a collector of the third triode is connected with the other end of the thirty-fourth resistor, a base of the third triode is connected with a base of the second triode and one end of the forty-first resistor through the thirty-fifth resistor, an emitter of the second triode is grounded through the forty-second resistor, the thirty-sixth resistor is connected with the twenty-first capacitor in parallel, and one end of the thirty-sixth resistor is connected with an emitter of the third triode and one end of the inductor, the other end of the inductor is connected with one end of the thirty-eighth resistor, one end of the thirty-seventh resistor and one end of the twenty-second capacitor, the collector of the fourth triode is connected with the other end of the thirty-seventh resistor, the base of the fourth triode is connected with the other end of the twenty-second capacitor and the negative electrode of the ninth diode through the forty resistor, the emitter of the fourth triode is grounded, and the other end of the thirty-eighth resistor is connected with one end of the thirty-ninth resistor and the output end of the power supply.

Technical Field

The invention relates to the technical field of antenna control, in particular to a beam switching device of a microstrip phase-controlled antenna.

Background

With the rapid development of communication technology, antennas are indispensable elements in the development of mobile communication, wherein microstrip antennas have the characteristics of small volume, light weight and the like, and have wide application in wireless communication.

Disclosure of Invention

The object of the present invention is to solve at least one of the technical drawbacks.

To this end, an object of the present invention is to provide a beam switching apparatus for a microstrip phased antenna, including: the device comprises an antenna receiving unit, a duplexer, an antenna transmitting unit, a filter circuit, a detection circuit, an analog-to-digital conversion circuit, a transmitter, a power supply, a signal processor, a beam change-over switch, a signal conditioning circuit, a power divider and a phase shifter; the antenna receiving unit is connected with the filter circuit, the filter circuit is connected with the detection circuit to detect signals by the detection circuit, the detection circuit is connected with the analog-to-digital conversion circuit, the analog-to-digital conversion circuit is connected with the signal processor, the detection circuit sends the detected signals into the signal processor through the analog-to-digital conversion circuit, the signal processor is connected with the beam switch, the transmitter is connected with the signal conditioning circuit through the beam switch, the signal conditioning circuit is connected with the power divider, the power divider is connected with the phase shifter to condition the signals transmitted by the transmitter through the signal conditioning circuit and then transmit the signals to the power divider, the phase shifter is connected with the antenna transmitting unit, the duplexer is respectively connected with the antenna receiving unit and the antenna transmitting unit, and the signals transmitted by the antenna transmitting unit are isolated from the signals received by the antenna receiving unit through the duplexer.

Preferably, the signal conditioning circuit includes twenty-first to thirty-second resistors, thirteenth to nineteenth capacitors, fifth to seventh diodes, and fourth to sixth operational amplifiers, one end of the twenty-first resistor is connected to one end of the twenty-second resistor and one end of the twenty-third resistor, a homodromous input end of the fourth operational amplifier is connected to the other end of the twenty-second resistor and one end of the thirteenth capacitor, an inverting input end of the fourth operational amplifier is connected to one end of the fourteenth capacitor, an output end of the fourth operational amplifier is connected to the other end of the thirteenth capacitor and one end of the twenty-fourth resistor, a homodromous input end of the fifth operational amplifier is connected to one end of the twenty-fifth resistor and the other end of the twenty-fourth resistor through the twenty-sixth resistor, an inverting input end of the fifth operational amplifier is grounded through the twenty-seventh resistor, and the other end of the twenty-fifth resistor is connected to the output end of the fifth operational amplifier and one end of the twenty-eighth resistor through the fifteenth capacitor The other end of the twenty-eighth resistor is connected with one end of a sixteenth capacitor, one end of a seventeenth capacitor and one end of a twenty-ninth resistor, the other end of the sixteenth capacitor is connected with the output end of a sixth operational amplifier and one end of a thirty-second resistor through a thirty resistor, the same-direction input end of a sixth operational amplifier is connected with the other end of the twenty-ninth resistor through an eighteenth capacitor, the other end of the seventeenth capacitor is connected with the cathode of a fifth diode, the reverse input end of the sixth operational amplifier is connected with one end of a thirty-first resistor, the other end of the thirty-second resistor is connected with the anode of a sixth diode, the cathode of a seventh diode and one end of a nineteenth capacitor.

In any of the above schemes, preferably, the detection circuit includes first to twentieth resistors, first to twelfth capacitors, first to fourth diodes, a first triode, and first to third operational amplifiers, a reverse input end of the first operational amplifier is connected to one end of the first resistor, a same-direction input end of the first operational amplifier is connected to one end of the second capacitor, the other end of the first resistor is connected to one end of the second resistor and one end of the first capacitor, a base of the first triode is connected to the other end of the second resistor, a collector of the first triode is connected to one end of the third capacitor, one end of the eighth resistor, a cathode of the first diode, a cathode of the second diode, one end of the twelfth resistor and one end of the thirteenth resistor, an emitter of the first triode is connected to the other end of the first capacitor, the other end of the third capacitor and the other end of the eighth resistor, the output end of the first operational amplifier is connected with one end of a fourth capacitor through a fifth resistor, the other end of the fourth capacitor is connected with one end of a sixth resistor, the other end of the sixth resistor is connected with one ends of a seventh resistor and a fifth capacitor, the other end of the seventh resistor is connected with one end of a ninth resistor and the other end of an eighth resistor, the other end of the second capacitor is connected with one end of the fourth resistor through a third resistor, the other end of the fourth resistor is connected with the anode of a third diode, the other end of the fifth capacitor and one end of the sixth capacitor, the anode of a first diode is connected with one end of the seventh capacitor through a tenth resistor, the anode of a second diode is connected with one end of the seventh capacitor through an eleventh resistor, the same-direction input end of a third operational amplifier is connected with the other end of a twelfth resistor and one end of a fourteenth resistor, and the reverse-direction input end of the third operational amplifier is connected with one end of a seventeenth resistor through an eleventh capacitor, the output end of the third operational amplifier is connected with the other end of the seventeenth resistor, the other end of the seventeenth resistor is connected with one end of the twentieth resistor and one end of the tenth capacitor through the twenty-first resistor, the equidirectional input end of the second operational amplifier is connected with the other end of the fourteenth resistor and the other end of the thirteenth resistor through the fifteenth resistor, the reverse input end of the second operational amplifier is connected with one end of the twelfth capacitor and one end of the eighth capacitor through the sixteenth resistor, the other end of the twelfth capacitor is grounded through the eighteenth resistor, the ninth capacitor is connected with the nineteenth resistor in parallel, one end of the ninth capacitor in parallel is connected with the other end of the eighth capacitor, and the other end of the eighth capacitor in parallel is connected with the output end of the second operational amplifier and one end of the twentieth resistor.

In any of the above schemes, preferably, the power supply includes thirty-third to forty-third resistors, twenty-second to twenty-second capacitors, an eighth diode, a ninth diode, second to fourth transistors, and an inductor, one end of the thirty-third resistor is connected to one end of the twentieth capacitor, one end of the forty-third resistor, one end of the thirty-fourth resistor, and a collector of the second transistor, a collector of the third transistor is connected to the other end of the thirty-fourth resistor, a base of the third transistor is connected to a base of the second transistor and one end of the forty-first resistor through a thirty-fifth resistor, an emitter of the second transistor is grounded through a forty-twelfth resistor, a thirty-sixth resistor is connected in parallel to the twenty-first capacitor, one end of the parallel connection is connected to an emitter of the third transistor and one end of the inductor, and the other end of the parallel connection is connected to the other end of the forty-first resistor and a negative electrode of the eighth diode, the other end of the inductor is connected with one end of a thirty-eighth resistor, one end of a thirty-seventh resistor and one end of a twenty-second capacitor, a collector of a fourth triode is connected with the other end of the thirty-seventh resistor, a base of the fourth triode is connected with the other end of the twenty-second capacitor and a negative electrode of a ninth diode through the forty resistor, an emitter of the fourth triode is grounded, and the other end of the thirty-eighth resistor is connected with one end of the thirty-ninth resistor and an output end of a power supply.

Compared with the prior art, the invention has the advantages and beneficial effects that:

1. the invention relates to a beam switching device of a microstrip phased antenna, which sends a received signal to a signal processor through a detection circuit, and the signal processor controls the switching of the beam according to the detected signal information, so that a user can use the optimal communication state of the signal, the switching efficiency is high, and the response speed is high.

2. According to the beam switching device of the microstrip phased antenna, after the transmitter transmits signals, the signal conditioning circuit can enable the antenna signals to have higher gain and smaller loss, so that higher-quality communication is realized.

3. The wave beam switching device of the microstrip phase-controlled antenna has the advantages of stable power supply, low power consumption and more cost saving, can ensure that transmitted and received signals do not interfere with each other by arranging the duplexer, and reduces more noises in the signals, so that the received signals have higher precision and good transmission quality.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a block diagram of a beam switching apparatus of a microstrip phased antenna according to the present invention;

fig. 2 is a circuit schematic of a signal conditioning circuit shown in a microstrip phased antenna diagram 1 according to the present invention;

FIG. 3 is a circuit schematic of the detection circuit shown in microstrip phased antenna diagram 1 according to the present invention;

fig. 4 is a circuit schematic of the power supply shown in a microstrip phased antenna diagram 1 according to the present invention.

Wherein the reference numbers:

1-an antenna receiving unit; 2-a duplexer; 3-an antenna transmitting unit; 4-a filter circuit; 5-a detection circuit; 6-analog-to-digital conversion circuit; 7-a transmitter; 8-a power supply; 9-a signal processor; 10-beam switches; 11-a phase shifter; 12-a power divider; 13-signal conditioning circuit.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1, a beam switching apparatus of a microstrip phased antenna according to the present invention includes: the antenna comprises an antenna receiving unit 1, a duplexer 2, an antenna transmitting unit 3, a filter circuit 4, a detection circuit 5, an analog-to-digital conversion circuit 6, a transmitter 7, a power supply 8, a signal processor 9, a beam switching switch 10, a signal conditioning circuit 13, a power divider 12 and a phase shifter 11; the antenna receiving unit 1 is connected with the filter circuit 4, the filter circuit 4 is connected with the detection circuit 5 to detect signals by the detection circuit 5, the detection circuit 5 is connected with the analog-to-digital conversion circuit 6, the analog-to-digital conversion circuit 6 is connected with the signal processor 9, the detection circuit 5 sends the detected signals to the signal processor 9 through the analog-to-digital conversion circuit 6, the signal processor 9 is connected with the beam switch 10, the transmitter 7 is connected with the signal conditioning circuit 13 through the beam switch 10, the signal conditioning circuit 13 is connected with the power divider 12, the power divider 12 is connected with the phase shifter 11 to condition the signals emitted by the transmitter 7 by the signal conditioning circuit 13 and then transmit the signals to the power divider 12, the phase shifter 11 is connected with the antenna emitting unit 3, the power divider 12 sends the signals to the phase shifter, and then the phase shifter 11 transmits the signals through the antenna emitting unit 3, the duplexer 2 is connected to the antenna receiving unit 1 and the antenna transmitting unit 3, respectively, to isolate the signal transmitted by the antenna transmitting unit 3 from the signal received by the antenna receiving unit 1 by the duplexer 2.

The invention relates to a beam switching device of a microstrip phased antenna, which transmits a received signal to a signal processor 9 through a detection circuit 5, and the signal processor 9 controls the switching of the beam according to the detected signal information, so that a user can use the communication state with the best signal, the switching efficiency is high, and the response speed is high.

Further, as shown in fig. 2, the signal conditioning circuit 13 includes twenty-first to thirty-second resistors, thirteenth to nineteenth capacitors, fifth to seventh diodes, and fourth to sixth operational amplifiers, one end of the twenty-first resistor R21 is connected to one end of the twenty-second resistor R22 and one end of the twenty-third resistor R23, a unidirectional input terminal of the fourth operational amplifier U4 is connected to the other end of the twenty-second resistor R22 and one end of the thirteenth capacitor C13, an inverted input terminal of the fourth operational amplifier U4 is connected to one end of the fourteenth capacitor C14, an output terminal of the fourth operational amplifier U4 is connected to the other end of the thirteenth capacitor C13 and one end of the twenty-fourth resistor R24, a unidirectional input terminal of the fifth operational amplifier U5 is connected to one end of the twenty-fifth resistor R25 and the other end of the twenty-fourth resistor R24 through the twenty-sixth resistor R26, an inverted input terminal of the fifth operational amplifier U5 is connected to the ground through the seventh resistor R27, the other end of the twenty-fifth resistor R25 is connected with one end of a fifteenth resistor C15, the output end of the fifth operational amplifier U5 and one end of a twenty-eighth resistor R28, the other end of the twenty-eighth resistor R28 is connected with one end of a sixteenth capacitor C16, one end of a seventeenth capacitor C17 and one end of a twenty-ninth resistor R29, the other end of the sixteenth capacitor C16 is connected with the output end of the sixth operational amplifier U6 and one end of a thirty-second resistor R32 through a thirty-third resistor R30, the homodromous input end of the sixth operational amplifier is connected with the other end of the twenty-ninth resistor R29 through an eighteenth capacitor C18, the other end of the seventeenth capacitor C17 is connected with the cathode of a fifth diode D5, the inverting input end of the sixth operational amplifier U6 is connected with one end of a thirty-ninth resistor R31, the other end of the thirty-second resistor R32 is connected with the anode of a sixth diode D6, the cathode of a seventh diode D7 and the nineteenth end of a nineteenth capacitor C19, the nineteenth capacitor C19, the anode of the seventh diode D7, the anode of the fifth diode D5, the other end of the thirty-first resistor R31, the other end of the twenty-seventh resistor R27, the other end of the twenty-third resistor R23, and the other end of the fourteenth capacitor C14 are grounded.

The signal to be transmitted is modulated and transmitted by the signal conditioning circuit 13, so that the signal gain is high, the loss is small, and the communication quality is high.

Further, as shown in fig. 3, the detection circuit 5 includes first to twentieth resistors, first to twelfth capacitors, first to fourth diodes, a first triode, and first to third operational amplifiers, a reverse input terminal of the first operational amplifier U1 is connected to one end of the first resistor R1, a same-direction input terminal of the first operational amplifier U1 is connected to one end of the second capacitor C2, the other end of the first resistor R1 is connected to one end of the second resistor R2 and one end of the first capacitor C1, a base of the first triode Q1 is connected to the other end of the second resistor R2, a collector of the first triode Q1 is connected to one end of the third capacitor C3, one end of the eighth resistor R8, a cathode of the first diode D1, a cathode of the second diode D2, one end of the twelfth resistor R12 and one end of the thirteenth resistor R13, an emitter of the first triode Q1 is connected to one end of the first capacitor C1, The other end of the third capacitor C3 is connected to the other end of the eighth resistor R8, the output end of the first operational amplifier U1 is connected to one end of the fourth capacitor C4 through a fifth resistor R5, the other end of the fourth capacitor C4 is connected to one end of a sixth resistor R6, the other end of the sixth resistor R6 is connected to one ends of a seventh resistor R7 and a fifth capacitor C5, the other end of the seventh resistor R7 is connected to one end of a ninth resistor R9 and the other end of an eighth resistor R8, the other end of the second capacitor C2 is connected to one end of a fourth resistor R4 through a third resistor R3, the other end of the fourth resistor R4 is connected to the anode of a third diode D3, the other end of a fifth capacitor C5 and one end of a sixth capacitor C6, the anode of the first diode D1 is connected to one end of a seventh capacitor C10 through a tenth resistor R10, and the anode of the second diode D10 is connected to one end of the seventh capacitor C10 through a seventh resistor R10, the same-direction input end of a third operational amplifier U3 is connected with the other end of a twelfth resistor R12 and one end of a fourteenth resistor R14, the reverse-direction input end of the third operational amplifier U3 is connected with one end of a seventeenth resistor R17 through an eleventh capacitor C11, the output end of a third operational amplifier U3 is connected with the other end of the seventeenth resistor R17, the other end of the seventeenth resistor R17 is connected with one end of a twentieth resistor R20 and one end of a tenth capacitor C10 through a twenty-first resistor R21, the same-direction input end of a second operational amplifier U2 is connected with the other end of a fourteenth resistor R14 and the other end of a thirteenth resistor R13 through a fifteenth resistor R15, the reverse-direction input end of the second operational amplifier U2 is connected with one end of a twelfth capacitor C12 and one end of an eighth capacitor C8 through a sixteenth resistor R16, the other end of a twelfth capacitor C12 is grounded through an eighteenth resistor R18, a ninth capacitor C9 is connected in parallel with a nineteenth resistor R19, one end of the third diode is connected with the other end of the eighth capacitor C8, the other end of the third diode is connected with the output end of the second operational amplifier U2 and one end of the twentieth resistor R20, and the cathode D3 of the third diode, the other end of the sixth capacitor C6, the cathode of the fourth diode D4 and the other end of the seventh capacitor C7 are grounded.

The detection circuit 5 sends the detected signal to the signal processor 9, and the signal processor 9 switches the wave beam after receiving the detection signal, so that the signal communication state of the mobile communication is optimal, and the communication quality is improved.

Further, as shown in fig. 4, the power supply 8 includes thirty-third to forty-third resistors, twentieth to twenty-second capacitors, an eighth diode D8, a ninth diode D9, second to fourth transistors, and an inductor L, one end of the thirty-third resistor R33 is connected to one end of the twentieth capacitor C20, one end of the forty-third resistor R43, one end of the thirty-fourth resistor R34, and a collector of the second transistor Q2, a collector of the third transistor Q3 is connected to the other end of the thirty-fourth resistor R34, a base of the third transistor Q3 is connected to the base of the second transistor Q2 and one end of the forty-first resistor R41 through a thirty-fifth resistor R35, an emitter of the second transistor Q2 is connected to the ground through a fourth-twelfth resistor R42, a thirty-sixth resistor R36 is connected in parallel to the twenty-first capacitor C21, one end of which is connected in parallel to an emitter of the third transistor Q3 and one end of the inductor L, the other end of which is connected in parallel to the cathode 8 of the first resistor R36 and the eighth resistor R41, the other end of the inductor L is connected with one end of a thirty-eighth resistor R38, one end of a thirty-seventh resistor R37 and one end of a twenty-second capacitor C22, a collector of a fourth triode Q4 is connected with the other end of the thirty-seventh resistor R37, a base of a fourth triode Q4 is connected with the other end of the twenty-second capacitor C22 and the negative electrode of a ninth diode D9 through a forty-resistor R40, an emitter of a fourth triode Q4 is grounded, and the other end of the thirty-eighth resistor R38 is connected with one end of a thirty-ninth resistor R39 and the output end of the power supply 8; the power supply 8 can prevent the signal processor 9 from being damaged by sudden change of current and voltage in order to provide a stable and reliable power supply mode, can ensure the safety and stability of the circuit, has low power consumption and saves more energy cost.

Optionally, the signal processor 9 is a chip of TMS320F28335PGFA type.

The working process of the embodiment of the invention is as follows: the antenna receiving unit 1 receives signals, the signals are filtered through the filter circuit 4, the filtered signals pass through the detection circuit 5, the detection circuit 5 sends the detected signals to the signal processor 9 through the analog-to-digital conversion circuit 6, the signal processor 9 controls the beam switching switch 10 to switch beams according to the signal condition detected by the detection circuit, the signals emitted by the emitting electrode are conditioned through the signal conditioning circuit 13, the conditioned signals reach the phase shifter 11 through the power divider 12, and the phase shifter 11 emits the signals through the antenna emitting unit 3.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.