Circuit, control method therefor, wireless transceiver system, chip and electronic device

Abstract

Provided in the present application are a circuit, a control method therefor, a wireless transceiver system, a chip and an electronic device, which are used for enabling two different working modes to share a same first mixer circuit and a same second mixer circuit. The circuit comprises a first mixer circuit, a second mixer circuit, a first port, a second port, a third port, a fourth port, a first switch and a second switch; the first mixer circuit comprises a first input end and a first output end; the second mixer circuit comprises a second input end and a second output end; the first input end selects, by means of the first switch, to be electrically connected to the first port or the second port; the first output end selects, by means of the first switch, to be electrically connected to the second port or the first port; the second input end selects, by means of the second switch, to be electrically connected to the third port or the fourth port; and the second output end selects, by means of the second switch, to be electrically connected to the fourth port or the third port.

Description

Circuit and control method thereof, wireless transceiver system, chip, and electronic device Technical Field

[0001] The present application relates to the field of circuit technology, and in particular to a circuit and a control method thereof, a wireless transceiver system, a chip, and an electronic device. Background Art

[0002] In high-frequency multi-channel microwave wireless energy transmission, wireless communication and other systems based on phased array antennas, each channel often needs to have the function of amplitude and phase detection of the incoming signal and amplitude and phase modulation of the transmitted signal. To achieve these two functions, each channel requires corresponding hardware circuits.

[0003] However, when the number of channels is large (for example, 32, 64, 128, 144, or 1024 channels), the hardware circuits required to implement the above two functions will also be very large, which will lead to a series of cost issues, excessive equipment size, design complexity, manufacturing complexity, and testing and debugging complexity. For example, a 128-channel system requires 128 amplitude and phase detection circuits and 128 amplitude and phase modulation circuits. Therefore, how to simplify these amplitude and phase detection circuits is a very important issue.

[0004] Summary of the Invention

[0005] The present application provides a circuit and a control method thereof, a wireless transceiver system, a chip, and an electronic device, which are used to enable two different operating modes to share the same first mixing circuit and the same second mixing circuit.

[0006] In a first aspect, the present application provides a circuit comprising a first mixing circuit, a second mixing circuit, a first port, a second port, a third port, a fourth port, a first switch, and a second switch. The first mixing circuit comprises a first input terminal and a first output terminal, and the second mixing circuit comprises a second input terminal and a second output terminal. The first input terminal is selectively electrically connected to the first port or the second port via the first switch, and the first output terminal is selectively electrically connected to the second port or the first port via the first switch. The second input terminal is selectively electrically connected to the third port or the fourth port via the second switch, and the second output terminal is selectively electrically connected to the fourth port or the third port via the second switch.

[0007] In one operating mode, the first switch selects to electrically connect the first port to the first input terminal, thereby inputting a signal to the first mixer circuit through the first port; the first switch selects to electrically connect the first output terminal to the second port, thereby causing the first mixer circuit to output a signal through the second port; the second switch selects to electrically connect the third port to the second input terminal, thereby inputting a signal to the second mixer circuit through the third port; the second switch selects to electrically connect the second output terminal to the fourth port, thereby causing the second mixer circuit to output a signal through the fourth port.

[0008] In another operating mode, the first switch is used to electrically connect the second port to the first input port, thereby inputting a signal to the first mixer circuit through the second port; the first switch is used to electrically connect the first output port to the first port, thereby causing the first mixer circuit to output a signal through the first port; the second switch is used to electrically connect the fourth port to the second input port, thereby inputting a signal to the second mixer circuit through the fourth port; the second switch is used to electrically connect the second output port to the third port, thereby causing the second mixer circuit to output a signal through the third port.

[0009] In this way, the two different operating modes can share the same first and second mixing circuits. Compared to the solutions proposed in the related art, which design the two operating modes as two independent circuits, the solution of this application can effectively reduce the number of circuit components, as well as the circuit area and cost. At the same time, it also reduces the complexity and workload of circuit design, processing, and debugging.

[0010] In some possible implementations, in the amplitude and phase detection mode, the first input terminal is electrically connected to the first port via the first switch, the first output terminal is electrically connected to the second port via the first switch, the second input terminal is electrically connected to the third port via the second switch, and the second output terminal is electrically connected to the fourth port via the second switch.

[0011] On this basis, the first frequency mixing circuit may further include a third input terminal, the second frequency mixing circuit may further include a fourth input terminal, and the aforementioned circuits may further include a first local oscillator signal input terminal and a second local oscillator signal input terminal. In the amplitude and phase detection mode, the third input terminal is electrically connected to the first local oscillator signal input terminal, and the fourth input terminal is electrically connected to the second local oscillator signal input terminal.

[0012] The first frequency mixing circuit is further configured to receive, in amplitude and phase detection mode, a first local oscillator signal input from the first local oscillator signal input terminal via a third input terminal. The first frequency mixing circuit can mix the received first local oscillator signal with a pilot signal to generate the first DC signal. A pilot signal refers to an energy transmission request signal sent from a receiver to a transmitter in a time reversal-based wireless transceiver system. The pilot signal has the same frequency as the energy transmission signal.

[0013] The second mixing circuit is further configured to receive, in amplitude and phase detection mode, a second local oscillator signal input from the second local oscillator signal input terminal via a fourth input terminal. The second mixing circuit can mix the received second local oscillator signal with the pilot signal to generate the second DC signal. The second local oscillator signal is orthogonal to the first local oscillator signal.

[0014] And / or, in the amplitude modulation and phase modulation mode, the first input end is electrically connected to the second port through the first switch, and the first output end is electrically connected to the first port through the first switch; the second input end is electrically connected to the fourth port through the second switch, and the second output end is electrically connected to the third port through the second switch.

[0015] The first frequency mixing circuit is further configured to receive the first local oscillator signal input from the first local oscillator signal input terminal through the third input terminal in an amplitude modulation and phase modulation mode. The first frequency mixing circuit can mix the received first local oscillator signal with the first control signal to obtain the first radio frequency signal.

[0016] The second mixing circuit is further configured to receive the second local oscillator signal input from the second local oscillator signal input terminal through the fourth input terminal in an amplitude modulation and phase modulation mode. The second mixing circuit can mix the received second local oscillator signal with the second control signal to obtain the second radio frequency signal.

[0017] In the present application, for any transceiver component, in the amplitude and phase detection mode, I / Q demodulation can be achieved by electrically connecting the first port to the input of the first mixer circuit and the second port to the output of the first mixer circuit using the first switch, and electrically connecting the third port to the input of the second mixer circuit and the fourth port to the output of the second mixer circuit using the second switch. Similarly, I / Q modulation can be achieved in the amplitude and phase modulation mode by electrically connecting the second port to the input of the first mixer circuit and the first port to the output of the first mixer circuit using the first switch, and electrically connecting the fourth port to the input of the second mixer circuit and the third port to the output of the second mixer circuit using the second switch. The amplitude and phase detection mode and the amplitude and phase modulation mode share the same first and second mixing circuits to achieve I / Q demodulation and I / Q modulation. In other words, the amplitude and phase detection circuit and the amplitude and phase modulation circuit are a single circuit, effectively reducing the number of components in the transceiver assembly, and ultimately the area and cost of the transmitter. This also reduces the complexity and workload of circuit design, processing, and debugging.

[0018] Moreover, by switching the first switch and the second switch, the transceiver component can also support at least one of the amplitude detection function, the phase detection function, the amplitude modulation function, and the phase modulation function respectively; or, the transceiver component can also support the amplitude detection and phase detection function or the amplitude modulation and phase modulation function respectively; or, the transceiver component can also support the amplitude detection and phase detection function and the amplitude modulation and phase modulation function flexibly in time sharing.

[0019] Based on the above, since the transmitter of the embodiment of the present application implements time-division multiplexing of amplitude and phase detection circuits and amplitude and phase modulation circuits based on I / Q demodulation and I / Q modulation, and the I / Q mixing structure has a natural broadband characteristic, therefore, whether it is amplitude and phase detection or amplitude and phase modulation, compared with digital delay line phase shifters, LC phase shifters, and resonant phase shifters, the embodiment of the present application has an operating bandwidth of several times the frequency range. As a result, the wireless transceiver system of the embodiment of the present application can be applied to more scenarios and products, without having to design and develop multiple models to adapt to different bandwidths.

[0020] At the same time, since I / Q demodulation and I / Q modulation can directly characterize the phase and amplitude through the input and output analog signals, compared with the digital delay line phase shifter which needs to convert the analog signal into a digital signal and consider the resolution of converting the analog signal into a digital signal, the solution of the present application can output a continuous first DC signal and a second DC signal, or output a continuous first RF signal and a second RF signal, with the advantages of high precision, strong resolution, and no quantization error caused by analog-to-digital conversion.

[0021] In some possible implementations, the first switch and the second switch are both double-pole double-throw switches, the first switch includes a first end, a second end, a third end, and a fourth end, and the second switch includes a fifth end, a sixth end, a seventh end, and an eighth end.

[0022] In the amplitude and phase detection mode, the first end is electrically connected to the third end, and the second end is electrically connected to the fourth end, so that the first port is electrically connected to the first input end through the first switch, and the second port is electrically connected to the first output end through the first switch, so that the pilot signal is input to the input end of the first mixing circuit through the first port and the first switch, and the first DC signal output by the first mixing circuit is output through the first switch and the second port.

[0023] In the amplitude and phase detection mode, the fifth terminal is electrically connected to the seventh terminal, and the sixth terminal is electrically connected to the eighth terminal, so that the third port is electrically connected to the input terminal of the second mixing circuit through the second switch, and the fourth port is electrically connected to the output terminal of the second mixing circuit through the second switch, so that the pilot signal is input to the input terminal of the second mixing circuit through the third port and the second switch, and the second DC signal output by the second mixing circuit is output through the second switch and the fourth port.

[0024] In some possible implementations, in the amplitude modulation and phase modulation mode, the first end is electrically connected to the fourth end, and the second end is electrically connected to the third end, so that the second port is electrically connected to the input end of the first mixing circuit through the first switch, and the first port is electrically connected to the output end of the first mixing circuit through the first switch, so that the first control signal is input to the input end of the first mixing circuit through the second port and the first switch, and the first RF signal output by the first mixing circuit is output through the first switch and the first port.

[0025] In the amplitude modulation and phase modulation mode, the fifth terminal of the second switch is electrically connected to the eighth terminal, and the sixth terminal is electrically connected to the seventh terminal, so that the fourth port is electrically connected to the input terminal of the second mixing circuit through the second switch, and the third port is electrically connected to the output terminal of the second mixing circuit through the second switch, so that the second control signal is input to the input terminal of the second mixing circuit through the fourth port and the second switch, and the second RF signal output by the second mixing circuit is output through the second switch and the third port.

[0026] In this way, by switching the conduction ports of the double-pole double-throw switch, the first and third input terminals can be used as the input terminals of the first mixer circuit, and the first output terminal can be used as the output terminal of the first mixer circuit, regardless of whether the circuit is in amplitude and phase detection mode or amplitude and phase modulation mode. The second and fourth input terminals can also be used as the input terminals of the second mixer circuit, and the second output terminal can be used as the output terminal of the second mixer circuit. Furthermore, by using two double-pole double-throw switches (the first switch and the second switch) based on one first mixer circuit and one second mixer circuit, a dual-mode circuit with both I / Q modulation and demodulation capabilities can be implemented, significantly reducing the number of components required to implement I / Q modulation and demodulation functions, as well as the circuit area and cost. This also reduces the complexity and workload of circuit design, processing, and debugging.

[0027] In some possible implementations, the circuit further includes a 90° power splitter and a local oscillator signal input terminal; the 90° power splitter is electrically connected between the local oscillator signal input terminal and the first local oscillator signal input terminal and the second local oscillator signal input terminal. The 90° power splitter can perform power splitting and phase shifting on the received local oscillator signal to generate a first local oscillator signal and a second local oscillator signal with the same amplitude and a phase difference of 90°. The first local oscillator signal is input to the first mixing circuit via the first local oscillator signal input terminal, and the second local oscillator signal is input to the second mixing circuit via the second local oscillator signal input terminal.

[0028] In some possible implementations, the first mixing circuit includes a first combiner and a first mixing diode; the first input terminal and the third input terminal are two input terminals of the first combiner, and the first output terminal is the output terminal of the first mixing diode. The first input terminal of the first combiner is electrically connected to the first switch, the third input terminal of the first combiner is electrically connected to the first local oscillator signal input terminal, the output terminal of the first combiner is electrically connected to the input terminal of the first mixing diode, and the first output terminal of the first mixing diode is electrically connected to the first switch.

[0029] The second mixing circuit includes a second combiner and a second mixing diode; the second input terminal and the fourth input terminal are the two input terminals of the second combiner, and the second output terminal is the output terminal of the second mixing diode. The second input terminal of the second combiner is electrically connected to the second switch, the fourth input terminal of the second combiner is electrically connected to the second local oscillator signal input terminal, the output terminal of the second combiner is electrically connected to the input terminal of the second mixing diode, and the second output terminal of the second mixing diode is electrically connected to the second switch.

[0030] In the amplitude and phase detection mode, the first input terminal of the first combiner is electrically connected to the third terminal of the first switch, the third input terminal is electrically connected to the first local oscillator signal input terminal, the output terminal of the first combiner is electrically connected to the input terminal of the first mixing diode, and the first output terminal of the first mixing diode is electrically connected to the fourth terminal of the first switch. The second input terminal of the second combiner is electrically connected to the seventh terminal of the second switch, the fourth input terminal is electrically connected to the second local oscillator signal input terminal, the output terminal of the second combiner is electrically connected to the input terminal of the second mixing diode, and the second output terminal of the second mixing diode is electrically connected to the eighth terminal of the second switch.

[0031] In the amplitude modulation and phase modulation mode, the input end of the first combiner is electrically connected to the third end of the first switch and the first local oscillator signal input end, respectively; the output end of the first combiner is electrically connected to the input end of the first mixing diode; and the output end of the first mixing diode is electrically connected to the fourth end of the first switch. The input end of the second combiner is electrically connected to the seventh end of the second switch and the second local oscillator signal input end, respectively; the output end of the second combiner is electrically connected to the input end of the second mixing diode; and the output end of the second mixing diode is electrically connected to the eighth end of the second switch.

[0032] In some possible implementations, the circuit further includes a bisection power splitter and a signal transceiver. The bisection power splitter is electrically connected between the signal transceiver and the first and third ports. In amplitude and phase detection mode, the bisection power splitter receives a pilot signal, splits the pilot signal into two equal parts, and then inputs the split signals into the first and second mixing circuits. In amplitude and phase modulation mode, the bisection power splitter receives a first radio frequency signal and a second radio frequency signal, and combines the first and second radio frequency signals to generate a transmit signal.

[0033] Specifically, in the amplitude and phase detection mode, the port of the two-way power splitter electrically connected to the signal transceiver end serves as an input port for receiving the pilot signal sent by the receiver; the port of the two-way power splitter electrically connected to the first switch through the first port and electrically connected to the second switch through the third port serves as an output port, dividing the received pilot signal into two completely identical pilot signals, and inputting the two pilot signals into the first mixing circuit and the second mixing circuit respectively.

[0034] In the amplitude modulation and phase modulation mode, the port of the two-way power splitter electrically connected to the first switch through the first port and electrically connected to the second switch through the third port serves as an input port to receive the first RF signal from the first mixing circuit and the second RF signal from the second mixing circuit; the port of the two-way power splitter electrically connected to the signal transceiver end serves as an output port, and the two-way power splitter can combine the first RF signal and the second RF signal, or in other words, add the first RF signal and the second RF signal to obtain a transmission signal, and output the transmission signal.

[0035] In some possible implementations, the circuit further includes a bandpass filter, a first lowpass filter, and a second lowpass filter. The bandpass filter is electrically connected between the signal transceiver terminal and the bisection power splitter. The first lowpass filter is electrically connected between the second port and the first switch, and the second lowpass filter is electrically connected between the fourth port and the second switch.

[0036] For the bandpass filter, in the amplitude and phase detection mode, the pilot signal can be input to the first input end of the first mixing circuit and the second input end of the second mixing circuit through the bandpass filter.

[0037] In the amplitude modulation and phase modulation mode, the first mixing circuit can mix and modulate the input first control signal and the first local oscillator signal into a radio frequency signal (including a fundamental frequency signal and higher harmonics), and input the radio frequency signal (including the fundamental frequency signal and higher harmonics) to the two-way power splitter. The second mixing circuit can mix and modulate the input second control signal and the second local oscillator signal into a radio frequency signal (including a fundamental frequency signal and higher harmonics), and input the radio frequency signal (including the fundamental frequency signal and higher harmonics) to the two-way power splitter. The two-way power splitter combines the two received radio frequency signals. The bandpass filter can also filter out the higher harmonics in the two combined radio frequency signals and output the fundamental frequency signal as the transmission signal. In other words, the bandpass filter is used to filter out the interference other than the first radio frequency signal and the second radio frequency signal in the two radio frequency signals.

[0038] For the first low-pass filter and the second low-pass filter, in the amplitude and phase detection mode, the first DC signal output by the first mixing circuit can be output through the first low-pass filter, and the second DC signal output by the second mixing circuit can be output through the second low-pass filter.

[0039] In the amplitude modulation and phase modulation mode, the first control signal may be input to the first mixing circuit through the first low-pass filter, and the second control signal may be input to the second mixing circuit through the second low-pass filter.

[0040] On this basis, in amplitude and phase detection mode, the first mixing circuit can mix and demodulate the input pilot signal and the first local oscillator signal to produce a first DC signal and a high-frequency signal, which are then output. The first low-pass filter can also filter out the high-frequency signal and output the first DC signal. The second mixing circuit can mix and demodulate the input pilot signal and the second local oscillator signal to produce a second DC signal and a high-frequency signal, which are then output. The second low-pass filter can also filter out the high-frequency signal and output the second DC signal.

[0041] Alternatively, in some other possible implementations, the circuit further includes a first band-pass filter, a second band-pass filter, a first low-pass filter, and a second low-pass filter.

[0042] In some possible implementations, in the amplitude and phase detection mode, the pilot signal can be input to the first input end of the first mixing circuit through the first bandpass filter, and input to the second input end of the second mixing circuit through the second bandpass filter.

[0043] Similarly, in the amplitude modulation and phase modulation mode, the first mixing circuit can output the first radio frequency signal through the first band pass filter, and the second mixing circuit can output the second radio frequency signal through the second band pass filter.

[0044] On this basis, in the amplitude modulation and phase modulation mode, the first mixing circuit can mix and modulate the input first control signal and the first local oscillator signal into a radio frequency signal (including the fundamental frequency signal and higher harmonics) and output it. The first bandpass filter can also filter out the higher harmonics and output the fundamental frequency signal as the first radio frequency signal. The second mixing circuit can mix and modulate the input second control signal and the second local oscillator signal into a high-frequency signal (including the fundamental frequency signal and higher harmonics) and output it. The second bandpass filter can also filter out the higher harmonics and output the fundamental frequency signal as the second radio frequency signal. In other words, the first bandpass filter is used to filter out the interference except the first radio frequency signal, and the second bandpass filter is used to filter out the interference except the second radio frequency signal.

[0045] In some possible implementations, in the amplitude and phase detection mode, the first DC signal output by the first mixing circuit may be output through a first low-pass filter, and the second DC signal output by the second mixing circuit may be output through a second low-pass filter.

[0046] Similarly, in the amplitude modulation and phase modulation mode, the first control signal can be input to the first mixing circuit through the first low-pass filter, and the second control signal can be input to the second mixing circuit through the second low-pass filter.

[0047] On this basis, in amplitude and phase detection mode, the first mixing circuit can mix and demodulate the input pilot signal and the first local oscillator signal to produce a first DC signal and a high-frequency signal, which are then output. The first low-pass filter can also filter out the high-frequency signal and output the first DC signal. The second mixing circuit can mix and demodulate the input pilot signal and the second local oscillator signal to produce a second DC signal and a high-frequency signal, which are then output. The second low-pass filter can also filter out the high-frequency signal and output the second DC signal.

[0048] In a second aspect, an embodiment of the present application provides a circuit, comprising a first mixing circuit, a second mixing circuit, a first port, a second port, a third port, a fourth port, a first switch, and a second switch. The first mixing circuit comprises a first input terminal and a first output terminal, and the second mixing circuit comprises a second input terminal and a second output terminal. The first input terminal selects, via the first switch, to receive a signal input from the first port or a signal input from the second port, and the first output terminal selects, via the first switch, to output a signal from the second port or from the first port. The second input terminal selects, via the second switch, to receive a signal input from the third port or a signal input from the fourth port, and the second output terminal selects, via the second switch, to output a signal through the fourth port or through the third port.

[0049] It should be understood that when the first input terminal is connected to the first port through the first switch, the first input terminal selects to receive the signal input by the first port through the first switch; when the first output terminal is connected to the second port through the first switch, the first output terminal selects to output the signal from the second port through the first switch.

[0050] When the first input terminal is connected to the second port through the first switch, the first input terminal selects to receive the signal input from the second port through the first switch; when the first output terminal is connected to the first port through the first switch, the first output terminal selects to output the signal from the first port through the first switch.

[0051] When the second input terminal is connected to the third port through the second switch, the second input terminal selects to receive the signal input from the third port through the second switch; when the second output terminal is connected to the fourth port through the second switch, the second output terminal selects to output the signal from the fourth port through the second switch.

[0052] When the second input terminal is connected to the fourth port through the second switch, the second input terminal selects to receive the signal input from the fourth port through the second switch; when the second output terminal is connected to the third port through the second switch, the second output terminal selects to output the signal from the third port through the second switch.

[0053] In some possible implementations, in the amplitude and phase detection mode, the first input terminal selects to receive a signal input from the first port via the first switch, and the first output terminal selects to output a signal from the second port via the first switch. The second input terminal selects to receive a signal input from the third port via the second switch, and the second output terminal selects to output a signal from the fourth port via the second switch.

[0054] Furthermore, the first switch and the second switch are both double-pole double-throw switches; the first switch includes a first terminal, a second terminal, a third terminal, and a fourth terminal; and the second switch includes a fifth terminal, a sixth terminal, a seventh terminal, and an eighth terminal.

[0055] In the amplitude and phase detection mode, the first terminal is electrically connected to the third terminal, and the first input terminal selectively receives a signal input from the first port through the first terminal and the third terminal. The second terminal is electrically connected to the fourth terminal, and the first output terminal selectively outputs a signal from the second port through the second terminal and the fourth terminal.

[0056] In the amplitude and phase detection mode, the fifth terminal is electrically connected to the seventh terminal, and the second input terminal selectively receives the signal input from the third port through the fifth and seventh terminals. The sixth terminal is electrically connected to the eighth terminal, and the second output terminal selectively outputs the signal from the fourth port through the sixth and eighth terminals.

[0057] In some possible implementations, in the amplitude modulation and phase modulation mode, the first input terminal selects to receive a signal input from the second port via the first switch, and the first output terminal selects to output a signal from the first port via the first switch. The second input terminal selects to receive a signal input from the fourth port via the second switch, and the second output terminal selects to output a signal from the third port via the second switch.

[0058] Furthermore, the first switch and the second switch are both double-pole double-throw switches; the first switch includes a first terminal, a second terminal, a third terminal, and a fourth terminal; and the second switch includes a fifth terminal, a sixth terminal, a seventh terminal, and an eighth terminal.

[0059] In the amplitude modulation and phase modulation mode, the second terminal is electrically connected to the third terminal, and the first input terminal selectively receives a signal input from the second port through the second terminal and the third terminal. The first terminal is electrically connected to the fourth terminal, and the first output terminal selectively outputs a signal from the first port through the first terminal and the fourth terminal.

[0060] In the amplitude modulation and phase modulation mode, the sixth terminal is electrically connected to the seventh terminal, and the second input terminal selectively receives a signal input from the fourth port via the sixth and seventh terminals. The fifth terminal is electrically connected to the eighth terminal, and the second output terminal selectively outputs a signal from the third port via the fifth and eighth terminals.

[0061] In some possible implementations, the first frequency mixing circuit further includes a third input terminal, and the second frequency mixing circuit further includes a fourth input terminal. The circuits further include a first local oscillator signal input terminal and a second local oscillator signal input terminal. The third input terminal receives a first local oscillator signal via the first local oscillator signal input terminal, and the fourth input terminal receives a second local oscillator signal via the second local oscillator signal input terminal. The first local oscillator signal and the second local oscillator signal are orthogonal.

[0062] Furthermore, the circuit also includes a 90° power divider and a local oscillator signal input end; the 90° power divider receives the local oscillator signal through the local oscillator signal input end, and performs power division and phase shift processing on the local oscillator signal to obtain a first local oscillator signal and a second local oscillator signal, and inputs the first local oscillator signal to the first mixing circuit through the first local oscillator signal input end, and inputs the second local oscillator signal to the second mixing circuit through the second local oscillator signal input end.

[0063] In some possible implementations, the first mixing circuit includes a first combiner and a first mixing diode. The first combiner receives a first local oscillator signal and selects, through a first switch, to receive a signal input from a first port or a signal input from a second port. An output end of the first combiner receives a signal output from the first combiner and, through the first switch, selects to output the signal through either the second port or the first port.

[0064] The second mixing circuit includes a second combiner and a second mixing diode. The second combiner receives the second local oscillator signal and, via a second switch, selects a signal input from the third port or a signal input from the fourth port. The output end of the second combiner receives the signal output from the second combiner and, via the second switch, selects to output the signal via the fourth port or the third port.

[0065] In some possible implementations, the circuit further includes a power splitter that divides the signal into two equal parts and a signal transceiver end, and the power splitter that divides the signal into two equal parts is electrically connected between the signal transceiver end and the first port and the third port.

[0066] In some possible implementations, the circuit further includes a bandpass filter, a first low-pass filter, and a second low-pass filter. The bandpass filter is electrically connected between the signal transceiver and the two-way power splitter. The first low-pass filter is electrically connected between the second port and the first switch, and the second low-pass filter is electrically connected between the fourth port and the second switch.

[0067] The second aspect and any implementation of the second aspect correspond to the first aspect and any implementation of the first aspect, respectively. The technical effects corresponding to the second aspect and any implementation of the second aspect can be referred to the technical effects corresponding to the first aspect and any implementation of the first aspect, and will not be repeated here.

[0068] In a third aspect, the present application provides a wireless transceiver system comprising a receiver and a transmitter. The transmitter comprises multiple transceiver components, each comprising an antenna, a power amplifier, and the circuit described in the first aspect. The receiver is configured to transmit an input signal to the transmitter; the circuit is configured to receive the input signal and output a transmit signal comprising a first radio frequency signal and a second radio frequency signal; the power amplifier is configured to amplify the transmit signal to obtain an output signal, which is then output via the antenna; and the receiver is further configured to receive the output signal.

[0069] In the present application, for any transceiver component, in the amplitude and phase detection mode, I / Q demodulation can be achieved by electrically connecting the first port to the input of the first mixer circuit and the second port to the output of the first mixer circuit using the first switch, and electrically connecting the third port to the input of the second mixer circuit and the fourth port to the output of the second mixer circuit using the second switch. Similarly, I / Q modulation can be achieved in the amplitude and phase modulation mode by electrically connecting the second port to the input of the first mixer circuit and the first port to the output of the first mixer circuit using the first switch, and electrically connecting the fourth port to the input of the second mixer circuit and the third port to the output of the second mixer circuit using the second switch. The amplitude and phase detection mode and the amplitude and phase modulation mode share the same first and second mixing circuits to achieve I / Q demodulation and I / Q modulation. In other words, the amplitude and phase detection circuit and the amplitude and phase modulation circuit are a single circuit, effectively reducing the number of components in the transceiver assembly, and ultimately the area and cost of the transmitter. This also reduces the complexity and workload of circuit design, processing, and debugging.

[0070] Moreover, by switching the first switch and the second switch, the transceiver component can also support at least one of the amplitude detection function, the phase detection function, the amplitude modulation function, and the phase modulation function respectively; or, the transceiver component can also support the amplitude detection and phase detection function or the amplitude modulation and phase modulation function respectively; or, the transceiver component can also support the amplitude detection and phase detection function and the amplitude modulation and phase modulation function flexibly in time sharing.

[0071] Based on the above, since the transmitter of the embodiment of the present application implements time-division multiplexing of amplitude and phase detection circuits and amplitude and phase modulation circuits based on I / Q demodulation and I / Q modulation, and the I / Q mixing structure has a natural broadband characteristic, therefore, whether it is amplitude and phase detection or amplitude and phase modulation, compared with digital delay line phase shifters, LC phase shifters, and resonant phase shifters, the embodiment of the present application has an operating bandwidth of several times the frequency range. As a result, the wireless transceiver system of the embodiment of the present application can be applied to more scenarios and products, without having to design and develop multiple models to adapt to different bandwidths.

[0072] At the same time, since I / Q demodulation and I / Q modulation can directly characterize the phase and amplitude through the input and output analog signals, compared with the digital delay line phase shifter which needs to convert the analog signal into a digital signal and consider the resolution of converting the analog signal into a digital signal, the solution of the present application can output a continuous first DC signal and a second DC signal, or output a continuous first RF signal and a second RF signal, with the advantages of high precision, strong resolution, and no quantization error caused by analog-to-digital conversion.

[0073] The implementation of the second aspect corresponds to any implementation of the first aspect. Other technical effects corresponding to other implementations of the second aspect can be found in the technical effects corresponding to the first aspect and any implementation of the first aspect, which will not be repeated here.

[0074] In some possible implementations, the wireless transceiver system further includes a low-noise amplifier and a third switch; the low-noise amplifier is electrically connected between the third switch and the circuit. When the antenna is electrically connected to the low-noise amplifier via the third switch, the low-noise amplifier receives a pilot signal input from the antenna via the third switch and amplifies the pilot signal. When the antenna is electrically connected to the power amplifier via the third switch, the power amplifier inputs and outputs signals to the antenna via the third switch. In this way, each transceiver component can receive the pilot signal and transmit the output signal via the third switch and a single antenna.

[0075] In a fourth aspect, the present application provides a method for controlling a circuit, the circuit comprising a first mixing circuit, a second mixing circuit, a first port, a second port, a third port, a fourth port, a first switch, and a second switch; the first mixing circuit comprising a first input terminal and a first output terminal, and the second mixing circuit comprising a second input terminal and a second output terminal. The method for controlling the circuit comprises: controlling the first switch so that the first input terminal is selectively electrically connected to the first port or the second port via the first switch, and the first output terminal is selectively electrically connected to the second port or the first port via the first switch; controlling the second switch so that the second input terminal is selectively electrically connected to the third port or the fourth port via the second switch, and the second output terminal is selectively electrically connected to the fourth port or the third port via the second switch.

[0076] In some possible implementations, controlling the first switch so that the first input terminal is selectively electrically connected to the first port or the second port, and the first output terminal is selectively electrically connected to the second port or the first port, includes: in amplitude and phase detection mode, controlling the first switch so that the first input terminal is electrically connected to the first port, and the first output terminal is electrically connected to the second port, through the first switch. Controlling the second switch so that the second input terminal is selectively electrically connected to the third port or the fourth port, and the second output terminal is selectively electrically connected to the fourth port or the third port, through the second switch, includes: in amplitude and phase detection mode, controlling the second switch so that the second input terminal is electrically connected to the third port, and the second output terminal is electrically connected to the fourth port, through the second switch.

[0077] In some possible implementations, the first switch and the second switch are both double-pole double-throw switches; the first switch includes a first end, a second end, a third end, and a fourth end; the second switch includes a fifth end, a sixth end, a seventh end, and an eighth end.

[0078] In the amplitude and phase detection mode, by controlling the first switch, the first input terminal is electrically connected to the first port through the first switch, and the first output terminal is electrically connected to the second port through the first switch, including: in the amplitude and phase detection mode, by controlling the first terminal to be electrically connected to the third terminal, and controlling the second terminal to be electrically connected to the fourth terminal, the first input terminal is electrically connected to the first port through the first terminal and the third terminal, and the first output terminal is electrically connected to the second port through the second terminal and the fourth terminal.

[0079] In the amplitude and phase detection mode, by controlling the second switch, the second input terminal is electrically connected to the third port through the second switch, and the second output terminal is electrically connected to the fourth port through the second switch, including: in the amplitude and phase detection mode, by controlling the fifth terminal to be electrically connected to the seventh terminal, and controlling the sixth terminal to be electrically connected to the eighth terminal, the second input terminal is electrically connected to the third port through the fifth terminal and the seventh terminal, and the second output terminal is electrically connected to the fourth port through the sixth terminal and the eighth terminal.

[0080] In some possible implementations, when the first switch and the second switch are both double-pole double-throw switches, by controlling the first switch, the first input terminal is electrically connected to the first port or the second port through the first switch, and the first output terminal is electrically connected to the second port or the first port through the first switch, including: in amplitude modulation and phase modulation mode, by controlling the first switch, the first input terminal is electrically connected to the second port through the first switch, and the first output terminal is electrically connected to the first port through the first switch.

[0081] By controlling the second switch, the second input end is selectively electrically connected to the third port or the fourth port through the second switch, and the second output end is selectively electrically connected to the fourth port or the third port through the second switch, including: in the amplitude modulation and phase modulation mode, by controlling the second switch, the second input end is electrically connected to the fourth port through the second switch, and the second output end is electrically connected to the third port through the second switch.

[0082] In some possible implementations, the first switch and the second switch are both double-pole double-throw switches; the first switch includes a first end, a second end, a third end, and a fourth end; the second switch includes a fifth end, a sixth end, a seventh end, and an eighth end.

[0083] In the amplitude modulation and phase modulation mode, by controlling the first switch, the first input terminal is electrically connected to the second port through the first switch, and the first output terminal is electrically connected to the first port through the first switch, including: in the amplitude modulation and phase modulation mode, by controlling the second terminal to be electrically connected to the third terminal, and controlling the first terminal to be electrically connected to the fourth terminal, the first input terminal is electrically connected to the second port through the second terminal and the third terminal, and the first output terminal is electrically connected to the first port through the first terminal and the fourth terminal.

[0084] In the amplitude modulation and phase modulation mode, by controlling the second switch, the second input terminal is electrically connected to the fourth port through the second switch, and the second output terminal is electrically connected to the third port through the second switch, including: in the amplitude modulation and phase modulation mode, by controlling the sixth terminal to be electrically connected to the seventh terminal, and controlling the fifth terminal to be electrically connected to the eighth terminal, the second input terminal is electrically connected to the fourth port through the sixth terminal and the seventh terminal, and the second output terminal is electrically connected to the third port through the fifth terminal and the eighth terminal.

[0085] In some possible implementations, the first frequency mixing circuit further includes a third input terminal, the second frequency mixing circuit further includes a fourth input terminal, and the circuit further includes a first local oscillator signal input terminal and a second local oscillator signal input terminal. The circuit control method further includes: controlling the third input terminal to be electrically connected to the first local oscillator signal input terminal, and controlling the fourth input terminal to be electrically connected to the second local oscillator signal input terminal.

[0086] The fourth aspect and any implementation of the fourth aspect correspond to the first aspect and any implementation of the first aspect, respectively. The technical effects corresponding to the fourth aspect and any implementation of the fourth aspect can be referred to the technical effects corresponding to the first aspect and any implementation of the first aspect, and will not be repeated here.

[0087] In a fifth aspect, the present application provides a chip, which includes the circuit described in the first aspect. The above circuit can be integrated into a separate chip or integrated into multiple chips.

[0088] The fifth aspect and any implementation of the fifth aspect correspond to the first aspect and any implementation of the first aspect, respectively. The technical effects corresponding to the fifth aspect and any implementation of the fifth aspect can be referred to the technical effects corresponding to the first aspect and any implementation of the first aspect, and will not be repeated here.

[0089] In a sixth aspect, the present application provides an electronic device comprising a circuit board and the chip described in the fifth aspect, wherein the chip is arranged on the circuit board.

[0090] The sixth aspect and any implementation of the sixth aspect correspond to the first aspect and any implementation of the first aspect, respectively. The technical effects corresponding to the sixth aspect and any implementation of the sixth aspect can be referred to the technical effects corresponding to the first aspect and any implementation of the first aspect, and will not be repeated here.

[0091] In a seventh aspect, the present application provides a computer-readable storage medium storing instructions, wherein when the instructions are executed on an electronic device, the electronic device executes the circuit control method as in the fourth aspect.

[0092] The seventh aspect and any implementation of the seventh aspect correspond to the first aspect and any implementation of the first aspect, respectively. The technical effects corresponding to the seventh aspect and any implementation of the seventh aspect can be referred to the technical effects corresponding to the first aspect and any implementation of the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0093] FIG1 is a schematic diagram of the interaction between a wireless charging transmitter and a smart door lock provided in an embodiment of the present application;

[0094] FIG2a is a schematic diagram of a transmitter wirelessly transmitting energy to a receiver according to an embodiment of the present application;

[0095] FIG2 b is a schematic diagram of a transmitter wirelessly transmitting energy to a mobile receiver according to an embodiment of the present application;

[0096] FIG2c is a schematic diagram of a transmitter wirelessly transmitting energy to multiple receivers according to an embodiment of the present application;

[0097] FIG3 is a diagram showing the connection relationship of various circuits of a transmitter provided in an embodiment of the present application;

[0098] FIG4 is a diagram showing the working process of a microwave wireless energy transmission system based on time reversal according to an embodiment of the present application;

[0099] FIG5 is a circuit diagram for amplitude and phase detection and amplitude and phase modulation provided by related art 1;

[0100] FIG6a is a circuit diagram for amplitude and phase detection and amplitude and phase modulation provided by related art 2;

[0101] FIG6 b is an equivalent circuit diagram of the circuit in FIG6 a when in amplitude and phase detection mode;

[0102] FIG6 c is an equivalent circuit diagram of the circuit in FIG6 a when in amplitude modulation and phase modulation mode;

[0103] FIG7 a is a circuit diagram of an embodiment of the present application in a working mode;

[0104] FIG7 b is a circuit diagram of another working mode provided by an embodiment of the present application;

[0105] FIG7c is a circuit diagram of an embodiment of the present application in an amplitude and phase detection mode;

[0106] FIG7 d is a circuit diagram of an embodiment of the present application in an amplitude modulation and phase modulation mode;

[0107] FIG8a is another circuit diagram provided by an embodiment of the present application in an amplitude and phase detection mode;

[0108] FIG8 b is another circuit diagram provided by an embodiment of the present application in an amplitude modulation and phase modulation mode;

[0109] FIG9a is a circuit diagram of another embodiment of the present application in an amplitude and phase detection mode;

[0110] FIG9 b is a circuit diagram of another embodiment of the present application in an amplitude modulation and phase modulation mode;

[0111] FIG10a is a circuit diagram of another embodiment of the present application in an amplitude and phase detection mode;

[0112] FIG10b is a circuit diagram of another embodiment of the present application in an amplitude modulation and phase modulation mode;

[0113] FIG10c is a circuit diagram of another embodiment of the present application in an amplitude and phase detection mode;

[0114] FIG10d is a circuit diagram of another embodiment of the present application in an amplitude modulation and phase modulation mode;

[0115] FIG11a is a circuit diagram of another embodiment of the present application in an amplitude and phase detection mode;

[0116] FIG11b is a circuit diagram of another embodiment of the present application in an amplitude modulation and phase modulation mode;

[0117] FIG12 is a control flow chart of the circuit provided in an embodiment of the present application for amplitude modulation and phase modulation and amplitude and phase detection.

[0118] Reference numerals:

[0119] 10-circuit; 11-first switch; 12-first mixing circuit; 121-first combiner; 122-first mixing diode; 131-band-pass filter; 13-first band-pass filter; 14-first low-pass filter; 21-second switch; 22-second mixing circuit; 221-second combiner; 222-second mixing diode; 23-second band-pass filter; 24-second low-pass filter; 30-third switch; 31-90° power divider; 32-half-dividing power divider. DETAILED DESCRIPTION

[0120] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0121] The term "and / or" in this article is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0122] In the description and claims of the embodiments of this application, the terms "first" and "second" are used to distinguish different objects, rather than to describe a specific order of objects. For example, the terms "first target object" and "second target object" are used to distinguish different objects, rather than to describe a specific order of objects.

[0123] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0124] In the description of the embodiments of this application, unless otherwise specified, "multiple" means two or more. For example, "multiple processing units" means two or more processing units; "multiple systems" means two or more systems.

[0125] The embodiments of the present application provide a wireless transceiver system and electronic device, which can be applied to high-frequency multi-channel microwave wireless energy transmission, wireless communication, radar, beam forming, beam control, digital television and other fields, but the embodiments of the present application do not limit this.

[0126] For example, embodiments of the present disclosure can be applied to various communication systems, including cellular and non-cellular communication systems. Considering the rapid development of communications, there will certainly be future types of communication technologies and systems that can embody the present disclosure. Therefore, the scope of the present disclosure should not be considered to be limited to the above-mentioned systems. Cellular systems may include fifth-generation mobile communication technology (5G), fourth-generation mobile communication technology (4G), etc. Non-cellular communication systems may include Bluetooth communication, Greentooth communication, mobile hotspot (Wi-Fi) communication, Zigbee communication or Star Flash communication, etc.

[0127] The term "electronic device" as used herein refers to any terminal device capable of wireless communication. As an illustrative and non-limiting example, an "electronic device" may also be referred to as a communication device, user equipment (UE), subscriber station (SS), portable subscriber station, mobile station (MS), or access terminal (AT). “Electronic device” may include, but is not limited to, mobile phones, cellular phones, smart phones, Voice over IP (VoIP) phones, wireless local loop phones, tablet computers, wearable terminal devices, personal digital assistants (PDAs), portable computers, desktop computers, image capture terminal devices (e.g., digital cameras), game terminal devices, music storage and playback devices, in-vehicle wireless terminal devices, wireless endpoints, mobile stations, laptop embedded equipped (LEE), laptop mounted equipment (LME), universal serial bus (USB) dongles, smart devices, wireless customer premises equipment (CPE), the internet of things (IoT) devices, watches or other wearable devices, head-mounted displays (HMDs), vehicles, drones, medical devices and applications (e.g., remote surgery), industrial devices and applications (e.g., robots and / or other wireless devices operating in industrial and / or automated process chain environments), consumer electronic devices, equipment for commercial operations and / or industrial wireless networks, etc.

[0128] The circuit disclosed below can be applied to electronic devices with signal processing capabilities. In some embodiments of the present application, the circuit can be a terminal device or an independent unit. When the circuit is an independent unit, the unit can be integrated into one or more chips, and the one or more chips can be provided on the circuit board of the electronic device. Furthermore, when the upstream circuit of the circuit inputs a control signal with a long duration and an active level to the circuit, the circuit can output a control signal with a short duration and an active level to its downstream circuit to protect the safety of the downstream circuit.

[0129] The electronic device may be an intelligent device with signal processing capabilities, including but not limited to: smart home devices such as televisions, robot vacuums, smart desk lamps, audio systems, smart lighting systems, appliance control systems, home background music, home theater systems, intercom systems, video surveillance, etc.; intelligent transportation equipment such as cars, ships, drones, trains, vans, trucks, etc.; and intelligent manufacturing equipment such as robots, industrial equipment, etc. Alternatively, the electronic device may be a computer device with control signal processing capabilities, such as a desktop computer, personal computer, server, etc. It should also be understood that the electronic device may also be a portable electronic device with control signal processing capabilities, such as a mobile phone, tablet computer, PDA, headphones, speakers, wearable devices (such as smart watches), in-vehicle equipment, virtual reality devices, augmented reality devices, etc.

[0130] The electronic device includes a processor that controls the operation and functionality of the electronic device. For example, in certain example embodiments, the processor may perform various operations with the aid of instructions stored in a memory coupled thereto. The memory may be of any suitable type suitable for the local technical environment and may be implemented using any suitable data storage technology, including but not limited to semiconductor-based memory devices, magnetic memory devices and systems, and optical memory devices and systems. It should be understood that the processor and memory may be provided separately as separate components or may be integrated together, and the present application is not limited in this respect.

[0131] The processor can be of any suitable type suitable for the local technical environment and can include, but is not limited to, one or more of a general-purpose computer, a special-purpose computer, a microcontroller, a digital signal processor (DSP), and a controller-based multi-core controller architecture. The electronic device can also include multiple processors, such as application-specific integrated circuit chips, which are time-dependent and synchronized with a clock of the main processor. For example, the processor can be coupled to a communication unit to implement communication functions. The communication unit can receive and send information via radio signals or with the help of optical fibers, cables, and / or other components.

[0132] The memory may include one or more non-volatile memories and one or more volatile memories. Examples of non-volatile memories include, but are not limited to, read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, hard disk, compact disc (CD), digital versatile disc (DVD), or other magnetic storage and / or optical storage. Examples of volatile memories include, but are not limited to, random access memory (RAM).

[0133] The embodiments of the present disclosure can be implemented with the aid of a computer program, enabling an electronic device to perform any control process discussed in the circuit control method embodiment provided herein. The embodiments of the present disclosure can also be implemented through hardware or a combination of software and hardware. The computer program includes computer-executable instructions executed by a processor. The computer program can be stored in a memory. The processor can perform any appropriate actions and processes by loading the computer program into RAM.

[0134] In some embodiments, the computer program may be tangibly embodied in a computer-readable medium that may be included in an electronic device (such as in a memory) or other storage device accessible by the electronic device. The computer program may be loaded from the computer-readable medium into RAM for execution. The computer-readable medium may include any type of tangible non-volatile memory, such as ROM, EPROM, flash memory, hard disk, CD, DVD, etc.

[0135] In some embodiments, the wireless transceiver system may include a receiver and a transmitter, and the transmitter includes multiple transceiver components.

[0136] For the sake of convenience, the following uses the application of a wireless transceiver system in the field of microwave wireless energy transmission as an example. In some possible implementations, the wireless transceiver system is a microwave wireless energy transmission system.

[0137] The wireless power transfer (WPT) industry has experienced rapid growth in recent years, achieving widespread commercial adoption in areas such as smartphones and smart wearables. Commercial applications in the Industrial Internet of Things (IoT), home IoT, smart cars, and drones have also taken off, forming a vast emerging industry. Compared to contact-based magnetic induction wireless charging technology, microwave power transfer (MPT) systems offer advantages such as long transmission distance, extended range, and the need for strict alignment between transmitter and receiver. This makes them a promising wireless power transfer technology for addressing the challenges of medium- and long-distance wireless charging.

[0138] The transmitter of a microwave wireless energy transmission system can be called a microwave energy transmitter or charging station, and the receiver of a microwave wireless energy transmission system can be called an energy receiver or energy receiver. The transmitter transmits microwave energy wirelessly to the receiver via an antenna. For example, as shown in Figure 1, the transmitter is a wireless charging transmitter, and the receiver is a smart door lock. The smart door lock sends a power transmission request to the wireless charging transmitter. In response to the received power transmission request, the wireless charging transmitter wirelessly transmits microwave energy to the charging station of the smart door lock.

[0139] However, before a transmitter can transmit microwave energy to a receiver using an antenna, it must first obtain the receiver's location information or transceiver channel information. For traditional beam-steering microwave wireless energy transmission technology, in point-to-point, ultra-long-distance scenarios, the transmitter often uses techniques such as beam scanning to obtain the receiver's location and transceiver channel information, and then aligns the energy beam to the receiver for wireless energy transmission. However, in indoor IoT applications (such as smart factories, smart homes, office buildings, and supermarkets), the multipath problems caused by the complex environment make it difficult for traditional beam-steering microwave wireless energy transmission technology to accurately focus energy on the receiver.

[0140] To address this, the embodiments of the present application utilize time reversal technology, a recently developed microwave wireless energy transmission technology that enables accurate receiver positioning, automatic tracking, adaptive focusing, and efficient energy transmission in complex multipath environments. Furthermore, this technology addresses the following pain points: the difficulty in deploying wired sensors and terminal devices, the high cost of cable construction and adjustment, the complexity and high maintenance costs of battery replacement for wireless sensors and terminal devices, and the limitations on increasing terminal device functionality due to insufficient battery capacity.

[0141] For example, based on time reversal technology, the transmitter of the microwave wireless energy transmission system can provide remote wireless charging for wireless sensors and terminal devices in smart cities, smart factories, shopping malls, supermarkets, office buildings, medical institutions and other places, with a distance of up to tens of meters.

[0142] For example, based on time reversal technology, the transmitter of the microwave wireless energy transmission system can also provide remote wireless charging for wireless sensors and terminal devices in smart homes, with a distance of up to ten meters.

[0143] For example, based on time reversal technology, the transmitter of the microwave wireless energy transmission system can also provide meter-level remote wireless charging for wireless sensors and terminal devices on commercial vehicles and passenger vehicles, or personal belongings of drivers and passengers.

[0144] Of course, the microwave wireless energy transmission system based on time reversal technology can also be applied to other scenarios, and the embodiments of the present application are not limited to this.

[0145] Based on the above scenario, as shown in Figure 2a, an embodiment of the present application can also support one transmitter TX to wirelessly transmit energy to one receiver RX; or, as shown in Figure 2b, an embodiment of the present application can also support one transmitter TX to wirelessly transmit energy to a receiver RX in a mobile state; or, as shown in Figure 2c, an embodiment of the present application can also support one transmitter TX to wirelessly transmit energy to multiple receivers RX (RX1, RX2, RX3 in Figure 2c).

[0146] The above examples exemplarily describe the working scenarios of the transmitter TX and one or more receivers RX in different states. Of course, the transmitter TX and one or more receivers RX can also work in other states, which is not limited in the embodiments of the present application.

[0147] As shown in Figure 3, the transmitter TX in a microwave wireless energy transmission system based on time reversal technology includes not only transceiver components but also a communication module, a control module, and a control signal source. Each transceiver component includes an antenna, a low-noise amplifier, an amplitude and phase detection circuit (receiver channel), an amplitude and phase modulation circuit (transmitter channel), and a power amplifier. The aforementioned circuit structure of the transmitter TX, combined with the receiver RX, implements the three stages of a microwave wireless energy transmission system based on time reversal technology.

[0148] As shown in Figure 4, the microwave wireless energy transmission system based on time reversal operates in three phases: Phase 1, the detection phase or energy transmission request phase; Phase 2, the time reversal processing phase; and Phase 3, the energy transmission return phase. This application focuses on the amplitude and phase detection circuits in the receiving direction and the amplitude and phase modulation circuits in the transmitting direction in each transceiver component. The amplitude and phase detection circuits are used in the detection phase, and the amplitude and phase modulation circuits are used in the energy transmission return phase.

[0149] Continuing with Figure 4, during the detection phase, the receiver RX switches to the signal transmission state, and all transceiver components of the transmitter TX switch to the incoming signal detection state. The receiver RX transmits the input signal (including the pilot signal). The transceiver components in the transmitter TX then receive the pilot signal and perform waveform demodulation to extract amplitude and phase information (i.e., amplitude and phase detection). This results in a pilot signal waveform containing channel and position information, which is then stored in memory.

[0150] In fields such as high-frequency, multi-channel microwave wireless energy transmission, wireless communications, radar, beamforming, beam steering, and digital television, the input signal can be used to indicate the wireless request signal transmitted by the receiver RX. Alternatively, in the field of microwave wireless energy transmission, the input signal can be used to indicate the wireless energy transmission request signal transmitted by the receiver RX. Furthermore, in the field of microwave wireless energy transmission based on time reversal technology, the input signal can be referred to as a pilot signal. A pilot signal refers to an energy transmission request signal sent from the receiver RX to the transmitter TX in a time reversal-based wireless transceiver system. This pilot signal has the same frequency as the energy transmission signal. Unless otherwise specified, the following description uses the pilot signal as an example.

[0151] During the time reversal phase, the transmitter TX performs time reversal processing on the pilot signal waveform containing channel information to obtain a time-reversed waveform. It should be understood that time reversal processing refers to the reversal of the time-domain signal in the temporal dimension. This involves mirroring the time-domain signal on the time axis, so that the earliest signal becomes the latest signal, and vice versa. In the frequency domain, time reversal is equivalent to phase conjugation.

[0152] During the energy transmission backhaul phase, the transmitter TX switches to the energy transmission state, and the receiver RX switches to the energy reception state. Based on the time-reversed signal, the various transceiver components of the transmitter TX perform waveform modulation (i.e., amplitude and phase modulation) on the local signal source (the first and second local oscillator signals described below). This is then combined with beamforming to produce a transmit signal. The power amplifier in the transmitter TX then amplifies the transmit signal to produce an energy transmission signal. The transmitter TX transmits this energy transmission signal, which is focused at the antenna of the receiver RX. The receiver RX then undergoes RF rectification to produce a DC signal, which is then used to power the downstream load, thus completing the entire microwave energy transmission and request process. The power amplifier amplifies the transmit signal to meet the energy intensity requirements of the receiver RX.

[0153] It should be noted that when the wireless transceiver system is applied to the field of microwave wireless energy transmission, the signal sent by the transmitter TX to the receiver RX can be referred to as the "energy transmission signal." When the wireless transceiver system is applied to other fields, the signal sent by the transmitter TX to the receiver RX can be named differently, and this embodiment of the application does not limit this.

[0154] During the three stages described above, the transmitter TX identifies and extracts the amplitude and phase information of the pilot signal during the detection phase. It then performs amplitude and phase modulation on the local signal during the energy return phase before transmitting it outward via the antenna. The amplitude and phase information of the transmitted signal during this phase are crucial for accurately focusing the energy signal transmitted by the transmitter TX at the receiver RX. Therefore, the ability to accurately detect the amplitude and phase of the pilot signal, and use this information to modulate the amplitude and phase of the local oscillator signal, significantly impacts the effectiveness of energy focusing and the efficiency of energy transmission.

[0155] In high-frequency systems, high-speed, accurate amplitude and phase detection circuits, as well as amplitude and phase modulation circuits, are of ongoing concern to the industry. Compared to traditional methods that measure amplitude and phase independently, I / Q demodulation-based amplitude and phase detection offers a distinct advantage in its ease of integration with digital technology. As the most mainstream amplitude and phase detection technology in recent years, I / Q demodulation has been widely used in communications, energy transmission, and radar systems for phase and amplitude detection of high-frequency signals.

[0156] AM / PM, based on I / Q modulation, maps the raw bitstream data into an I / Q coordinate system according to specific rules. The I / Q coordinate system is essentially a complex coordinate system. This mapping yields I and Q signals, which are then added together to produce the output transmit signal. I / Q modulation can achieve higher data rates by increasing the symbol rate or employing higher-order modulation. In recent years, AM / PM based on I / Q modulation has become a mainstream amplitude and phase control solution.

[0157] However, in related designs that include both amplitude modulation and phase modulation circuits and amplitude detection and phase detection circuits, the amplitude modulation and phase modulation circuit based on I / Q modulation and the amplitude detection and phase detection circuit based on I / Q demodulation are usually designed as two independent circuits or chips.

[0158] For example, as shown in FIG5 , the transmitter proposed in the related art 1 includes an orthogonal demodulator and an orthogonal modulator as two independent circuits, wherein the orthogonal demodulator is used to realize the amplitude detection and phase detection functions, and the orthogonal modulator is used to realize the amplitude modulation and phase modulation functions. This results in a large circuit area occupied by the amplitude detection and phase detection circuit and the amplitude modulation and phase modulation circuit, and consumes more hardware costs.

[0159] For example, as shown in Figure 6a, the transmitter proposed in Related Art 2 includes a receiving branch and a transmitting branch. As shown in Figure 6b, the receiving branch consists of a low-noise amplifier (LNA), a mixer, and a baseband programmable gain amplifier (PGA) to implement amplitude and phase detection functions. As shown in Figure 6c, the transmitting branch consists of a phase shifter (PS), an attenuator (ATT), and a power amplifier (PA) to implement amplitude and phase modulation functions.

[0160] However, on the one hand, compared with the amplitude modulation and phase modulation of I / Q modulation, the second related technology implements the amplitude modulation and phase modulation function through a variable phase shifter (PS) and an attenuator (ATT). However, the operating frequency band of common variable phase shifters (such as digital delay line phase shifters, LC phase shifters, and resonant structure phase shifters, etc.) is generally narrow, while the amplitude modulation and phase modulation scheme of I / Q modulation has extremely excellent wide-band response characteristics, applicable to both low and high frequencies. On the other hand, although the solution of the second related technology can integrate the receiving branch and the transmitting branch on the same chip, in fact, the receiving branch and the transmitting branch are two independent circuits, which causes the related functions to consume more hardware space and cost in the chip.

[0161] When there are many transceiver components (e.g., 32, 64, 128, 144, or 1024 channels), using two independent circuits (a quadrature demodulator and a quadrature modulator) of the aforementioned related art 1, or two independent circuits (a receiving branch and a transmitting branch) of the aforementioned related art 2, to implement the amplitude detection and phase detection and amplitude modulation and phase modulation functions, the number of hardware components required to implement these functions will increase, resulting in a series of cost issues, excessive equipment size, design complexity, manufacturing complexity, and testing and debugging complexity. For example, a 128-channel system requires 128 amplitude detection and phase detection circuits and 128 amplitude modulation and phase modulation circuits. Therefore, simplifying these amplitude detection and phase detection circuits and amplitude modulation and phase modulation circuits is a very important issue.

[0162] To address the above issues, as shown in Figures 7a and 7b, an embodiment of the present application provides a circuit, which includes a first mixing circuit 12, a second mixing circuit 22, a first port V1, a second port V2, a third port V3, a fourth port V4, a first switch 11, and a second switch 21. The first mixing circuit 12 includes a first input terminal Vin1, a third input terminal Vin3, and a first output terminal Vout1, and the second mixing circuit 22 includes a second input terminal Vin2, a fourth input terminal Vin4, and a second output terminal Vout2.

[0163] The first input terminal Vin1 is selectively electrically connected to the first port V1 or the second port V2 through the first switch 11 , and the first output terminal Vout1 is selectively electrically connected to the second port V2 or the first port V1 through the first switch 11 .

[0164] The second input terminal Vin2 is selectively electrically connected to the third port V3 or the fourth port V4 through the second switch 21 , and the second output terminal Vout2 is selectively electrically connected to the fourth port V4 or the third port V3 through the second switch 21 .

[0165] As shown in FIG7a , in one operating mode, the first switch 11 electrically connects the first port V1 to the first input terminal Vin1, thereby inputting a signal to the first mixer circuit 12 via the first port V1. The first switch 11 electrically connects the first output terminal Vout1 to the second port V2, thereby causing the first mixer circuit 12 to output a signal via the second port V2. The second switch 21 electrically connects the third port V3 to the second input terminal Vin2, thereby inputting a signal to the second mixer circuit 22 via the third port V3. The second switch 21 electrically connects the second output terminal Vout2 to the fourth port V4, thereby causing the second mixer circuit 22 to output a signal via the fourth port V4.

[0166] As shown in FIG7b , in another operating mode, the first switch 11 is used to electrically connect the second port V2 to the first input port Vin1, thereby inputting a signal to the first mixer circuit 12 via the second port V2. The first switch 11 is used to electrically connect the first output port Vout1 to the first port V1, thereby causing the first mixer circuit 12 to output a signal via the first port V1. The second switch 21 is used to electrically connect the fourth port V4 to the second input port Vin2, thereby inputting a signal to the second mixer circuit 22 via the fourth port V4. The second switch 21 is used to electrically connect the second output port Vout2 to the third port V3, thereby causing the second mixer circuit 22 to output a signal via the third port V3.

[0167] In this way, the two different operating modes can share the same first mixer circuit 12 and the same second mixer circuit 22. Compared with the solutions proposed in the related art, in which the two operating modes are designed as two independent circuits, the solution of the embodiment of the present application can effectively reduce the number of circuit components, as well as the circuit area and cost. At the same time, it also reduces the complexity of circuit design, the complexity and workload of processing and debugging.

[0168] The following description uses this circuit as an example, using it as a dual-mode circuit with both I / Q modulation and demodulation capabilities, and combining the functions of the aforementioned amplitude and phase detection circuit and amplitude and phase modulation circuit. However, it should be understood that the embodiments of the present application are not limited to amplitude and phase detection circuits and amplitude and phase modulation circuits, nor are they limited to circuits designed based on time reversal technology. For example, this circuit can also be applied to the aforementioned high-frequency, multi-channel microwave wireless power transmission, wireless communications, radar, beamforming, beam steering, digital television, and other fields, as long as the circuit connection relationship satisfies the two operating modes described above.

[0169] Specifically, as shown in FIG7c , in the amplitude and phase detection mode, the first input terminal Vin1 is electrically connected to the first port V1 via the first switch 11, and the first output terminal Vout1 is electrically connected to the second port V2 via the first switch 11. The second input terminal Vin2 is electrically connected to the third port V3 via the second switch 21, and the second output terminal Vout2 is electrically connected to the fourth port V4 via the second switch 21. And / or, as shown in FIG7d , in the amplitude and phase modulation mode, the first input terminal Vin1 is electrically connected to the second port V2 via the first switch 11, and the first output terminal Vout1 is electrically connected to the first port V1 via the first switch 11. The second input terminal Vin2 is electrically connected to the fourth port V4 via the second switch 21, and the second output terminal Vout2 is electrically connected to the third port V3 via the second switch 21.

[0170] As shown in FIG7c, the first mixing circuit 12 is used to receive the pilot signal RF input from the first port V1 through the first switch 11 and the first input terminal Vin1 in the amplitude and phase detection mode, and output the first DC signal DC through the first output terminal Vout1, the first switch 11, and the second port V2. I And / or, as shown in FIG7 d , the first mixing circuit 12 is further configured to receive, in the amplitude modulation and phase modulation mode, the first control signal DC1 inputted from the second port V2 via the first switch 11 and the first input terminal Vin1, and output the first radio frequency signal RF1 via the first output terminal Vout1, the first switch 11, and the first port V1.

[0171] 7c and 7d, the first mixer circuit 12 may further include a third input terminal Vin3, and the aforementioned circuit may further include a first local oscillator signal input terminal Vin1_LO. In the amplitude and phase detection mode, the third input terminal Vin3 is electrically connected to the first local oscillator signal input terminal Vin1_LO.

[0172] As shown in FIG7c, the first frequency mixing circuit 12 is further configured to receive the first local oscillator signal LO inputted from the first local oscillator signal input terminal Vin1_LO through the third input terminal Vin3 in the amplitude and phase detection mode. I The first mixing circuit 12 can receive the first local oscillation signal LO IMixed with the pilot signal RF to obtain the first DC signal DC I .

[0173] And / or, as shown in FIG7d, the first mixing circuit 12 is further configured to receive the first local oscillator signal LO inputted from the first local oscillator signal input terminal Vin1_LO via the third input terminal Vin3 in the amplitude modulation and phase modulation mode. I The first mixing circuit 12 can receive the first local oscillation signal LO I The mixed signal is mixed with the first control signal DC1 to obtain the first radio frequency signal RF1.

[0174] As shown in FIG7c, the second mixing circuit 22 is used to receive the pilot signal RF input from the third port V3 through the second switch 21 and the second input terminal Vin2 in the amplitude and phase detection mode, and output the second DC signal DC through the second output terminal Vout2, the second switch 21, and the fourth port V4. Q And / or, as shown in FIG7d , the second mixing circuit 22 is further configured to receive the second control signal DC2 input from the fourth port V4 through the second switch 21 and the second input terminal Vin2 in the AM / PM mode, and output the second RF signal RF2 through the second output terminal Vout2, the second switch 21, and the third port V3; wherein the first local oscillator signal LO I and the second local oscillator signal LO Q Orthogonal.

[0175] 7c and 7d, the second mixer circuit 22 may further include a fourth input terminal Vin4, and the above circuit may further include a second local oscillator signal input terminal Vin2_LO. In the AM / PM mode, the fourth input terminal Vin4 is electrically connected to the second local oscillator signal input terminal Vin2_LO.

[0176] As shown in FIG7d, the second mixing circuit 22 is further configured to receive the second local oscillator signal LO inputted from the second local oscillator signal input terminal Vin2_LO via the fourth input terminal Vin4 in the amplitude and phase detection mode. Q The second mixing circuit 22 can receive the second local oscillation signal LO Q Mixed with the pilot signal RF to obtain the second DC signal DC Q Among them, the second local oscillator signal LO Q With the first local oscillator signal LO I Orthogonal.

[0177] And / or, as shown in FIG7d, the second mixing circuit 22 is further configured to receive the second local oscillator signal LO inputted from the second local oscillator signal input terminal Vin2_LO via the fourth input terminal Vin4 in the amplitude modulation and phase modulation mode. QThe second mixing circuit 22 can receive the second local oscillation signal LO Q The mixed signal is mixed with the second control signal DC2 to obtain the second radio frequency signal RF2.

[0178] In some possible implementations, the transmitter mentioned above includes multiple transceiver components, each of which may include the above-mentioned first mixing circuit 12, the second mixing circuit 22, the first port V1, the second port V2, the third port V3, the fourth port V4, the first local oscillator signal input terminal Vin1_LO, the second local oscillator signal input terminal Vin2_LO, the first switch 11, and the second switch 21.

[0179] It should be noted that the solution of the present application can adjust the first switch 11 and the second switch 21 so that, regardless of whether in the amplitude detection and phase detection mode or the amplitude modulation and phase modulation mode, the first input terminal Vin1 and the third input terminal Vin3 always serve as the input terminals of the first mixing circuit 12, and the first output terminal Vout1 always serves as the output terminal of the first mixing circuit 12; the second input terminal Vin2 and the fourth input terminal Vin4 always serve as the input terminals of the second mixing circuit 22, and the second output terminal Vout2 always serves as the output terminal of the second mixing circuit 22.

[0180] In the present application, for any transceiver component, I / Q demodulation can be achieved in the amplitude and phase detection mode by simply connecting the first port V1 to the input of the first mixer circuit 12 and the second port V2 to the output of the first mixer circuit 12 using the first switch 11, and connecting the third port V3 to the input of the second mixer circuit 22 and the fourth port V4 to the output of the second mixer circuit 22 using the second switch 21. Similarly, I / Q modulation can be achieved in the amplitude and phase modulation mode by connecting the second port V2 to the input of the first mixer circuit 12 and the first port V1 to the output of the first mixer circuit 12 using the first switch 11, and connecting the fourth port V4 to the input of the second mixer circuit 22 and the third port V3 to the output of the second mixer circuit 22 using the second switch 21. The amplitude and phase detection mode and the amplitude and phase modulation mode share the same first mixer circuit 12 and the same second mixer circuit 22 to implement I / Q demodulation and I / Q modulation. In other words, the amplitude and phase detection circuit and the amplitude and phase modulation circuit are the same circuit, effectively reducing the number of components in the transceiver assembly, and even the area and cost of the transmitter TX. This also reduces the complexity and workload of circuit design, processing, and debugging.

[0181] Moreover, by switching the first switch 11 and the second switch 21, the transceiver component can also support at least one of the amplitude detection function, the phase detection function, the amplitude modulation function, and the phase modulation function respectively; or, as shown in FIG7c or FIG7d, the transceiver component can also support the amplitude detection and phase detection function or the amplitude modulation and phase modulation function respectively; or, the transceiver component can also support the amplitude detection and phase detection function and the amplitude modulation and phase modulation function flexibly in time sharing.

[0182] Based on the above, since the transmitter TX of the embodiment of the present application implements time-division multiplexing of amplitude and phase detection circuits and amplitude and phase modulation circuits based on I / Q demodulation and I / Q modulation, and the I / Q mixing structure has a natural broadband characteristic, therefore, whether it is amplitude and phase detection or amplitude and phase modulation, compared with digital delay line phase shifters, LC phase shifters, and resonant phase shifters, the embodiment of the present application has an operating bandwidth of several times the frequency range. As a result, the wireless transceiver system of the embodiment of the present application can be applied to more scenarios and products, without having to design and develop multiple models to adapt to different bandwidths.

[0183] At the same time, since I / Q demodulation and I / Q modulation can directly characterize the phase and amplitude through the input and output analog signals, compared with the digital delay line phase shifter which needs to convert the analog signal into a digital signal and consider the resolution of converting the analog signal into a digital signal, the solution of the present application can output a continuous first DC signal DC I and the second DC signal DC Q , or outputting a continuous first radio frequency signal RF1 and a second radio frequency signal RF2, which has the advantages of high precision, strong resolution, and no quantization error due to analog-to-digital conversion.

[0184] In some possible implementations, when performing I / Q demodulation and I / Q modulation using the first mixing circuit 12 and the second mixing circuit 22, the first mixing circuit 12 may be an I-channel mixing circuit, and the second mixing circuit 22 may be a Q-channel mixing circuit. Alternatively, the first mixing circuit 12 may be a Q-channel mixing circuit, and the second mixing circuit 22 may be an I-channel mixing circuit. For ease of description, the following description uses the example of the first mixing circuit 12 being an I-channel mixing circuit and the second mixing circuit 22 being a Q-channel mixing circuit.

[0185] The following formulas are used to derive how to extract the phase and amplitude of the pilot signal RF in the amplitude and phase detection mode, and how to control the phase and amplitude of the transmit signal RFout in the amplitude modulation down mode.

[0186] As shown in FIG7c, assuming that in the amplitude and phase detection mode, the first local oscillator signal input to the first mixing circuit 12 is The second local oscillation signal input to the second mixing circuit 22 The pilot signal input to the first mixer circuit 12 and the second mixer circuit 22 Where A represents the first local oscillator signal LO I and the second local oscillator signal LO Q The amplitude, Indicates the first local oscillator signal LO I The phase of the pilot signal RF is represented by B. represents the phase of the pilot signal RF, ω represents the frequency, and t represents the time. As shown in Figure 7c, the first local oscillator signal LO I and the second local oscillator signal LO Q It can be obtained by phase shifting the same local oscillator signal LO. In Figures 7c and 7d, the phase shift from the local oscillator signal LO to the first local oscillator signal LO is shown in Figure 7c and Figure 7d. I and the second local oscillator signal LO Q The dotted line omits the phase shift processing process of the local oscillator signal LO, which is described in detail below.

[0187] The first mixing circuit 12 generates the first local oscillation signal LO I Mixed with the pilot signal RF, a first DC signal DC is obtained. I The second mixing circuit 22 generates the second local oscillation signal LO Q Mixed with the pilot signal RF, a second DC signal DC is obtained. Q . It can be expressed by Formula 1 and Formula 2 respectively:

[0188] The first DC signal DC I and the second DC signal DC Q The first local oscillator signal LO I And the phase and amplitude of the pilot signal RF are expressed as:

[0189] It can be seen from formula 3 that by comparing the first DC signal DC I and the second DC signal DC Q The tangent value of the first local oscillator signal LO can be solved I The relative phase between the first local oscillator signal LO and the pilot signal RF is obtained. I The phase difference between the guidance signal RF:

[0190] Set the first local oscillator signal LO I and the second local oscillator signal LO Q The amplitude A of the guidance signal RF is a certain value, and the amplitude B of the guidance signal RF can be obtained by formula 1:

[0191] Alternatively, set the first local oscillator signal LO I and the second local oscillator signal LO QThe amplitude A of the guidance signal RF is a certain value, and the amplitude B of the guidance signal RF can be obtained by formula 2:

[0192] In this way, the phase and amplitude of the pilot signal RF can be extracted through the above formula 4, formula 5 or formula 6.

[0193] Next, the pilot signal RF may be subjected to time reversal processing to obtain a time reversal signal. The phase and amplitude of the time reversal signal may be obtained based on the phase and amplitude of the pilot signal RF.

[0194] Next, as shown in FIG7d, assuming the amplitude modulation and phase modulation mode, the first local oscillation signal input to the first mixer circuit 12 is The second local oscillation signal input to the second mixing circuit 22 The first mixer circuit 12 also receives the first control signal DC1, and the second mixer circuit 22 also receives the second control signal DC2. I and the second local oscillator signal LO Q The amplitude, Indicates the first local oscillator signal LO I The phase of ω is the frequency, and t is the time.

[0195] The first mixing circuit 12 generates the first local oscillation signal LO I The first control signal DC1 is mixed to obtain the first radio frequency signal RF1. The second mixing circuit 22 mixes the second local oscillation signal LO Q Mixed with the second control signal DC2, a second radio frequency signal RF2 is obtained. This can be expressed by Formula 7 and Formula 8, respectively:

[0196] The first radio frequency signal RF1 and the second radio frequency signal RF2 are added to obtain a transmission signal RFout:

[0197] The dotted line from the first port V1 and the third port V3 to the output transmission signal RFout in FIG7 d omits the process of adding the first RF signal RF1 and the second RF signal RF2 to obtain the transmission signal RFout, which is described in detail below.

[0198] Performing the sum and difference product on Formula 9 yields the transmit signal RFout:

[0199] According to formula 10, it can be seen that in the first local oscillator signal LO I and the second local oscillator signal LO QWhen the amplitude A is a certain value, the phase and amplitude of the transmission signal RFout can be adjusted by adjusting the magnitudes of the first control signal DC1 and the second control signal DC2.

[0200] In this way, the phase of the transmitted signal RFout is The amplitude of the transmitted signal RFout is Therefore, in the amplitude modulation and phase modulation mode, the phase and amplitude of the transmission signal RFout can be adjusted by controlling the magnitudes of the first control signal DC1 and the second control signal DC2 based on the phase and amplitude of the time reversal signal.

[0201] In some possible implementations, the first control signal DC1 and the second control signal DC2 may be DC voltages, and the phase and amplitude of the transmit signal RFout output by the circuit 10 may be adjusted by adjusting the voltage values ​​of the first control signal DC1 and the second control signal DC2.

[0202] In some embodiments, both the first switch 11 and the second switch 21 can be implemented as double-pole double-throw switches. As shown in Figures 7c and 7d, the first switch 11 includes a first terminal a1, a second terminal a2, a third terminal b1, and a fourth terminal b2. The second switch includes a fifth terminal c1, a sixth terminal c2, a seventh terminal d1, and an eighth terminal d2.

[0203] As shown in FIG7c, in the amplitude and phase detection mode, the first terminal a1 of the first switch 11 is conductive with the third terminal b1, and the second terminal a2 is conductive with the fourth terminal b2, so that the first port V1 is electrically connected to the input terminal of the first mixer circuit 12 through the first switch 11, and the second port V2 is electrically connected to the output terminal of the first mixer circuit 12 through the first switch 11, so that the pilot signal RF is input to the input terminal of the first mixer circuit 12 through the first port V1 and the first switch 11, so that the first DC signal DC output by the first mixer circuit 12 is I The output is through the first switch 11 and the second port V2.

[0204] And / or, as shown in Figure 7d, in the amplitude modulation and phase modulation mode, the first end a1 of the first switch 11 is conductively connected to the fourth end b2, and the second end a2 is conductively connected to the third end b1, so that the second port V2 is electrically connected to the input end of the first mixing circuit 12 through the first switch 11, and the first port V1 is electrically connected to the output end of the first mixing circuit 12 through the first switch 11, so that the first control signal DC1 is input to the input end of the first mixing circuit 12 through the second port V2 and the first switch 11, and the first radio frequency signal RF1 output by the first mixing circuit 12 is output through the first switch 11 and the first port V1.

[0205] As shown in FIG7c, in the amplitude and phase detection mode, the fifth terminal c1 of the second switch 21 is conductive with the seventh terminal d1, and the sixth terminal c2 is conductive with the eighth terminal d2, so that the third port V3 is electrically connected to the input terminal of the second mixer circuit 22 through the second switch 21, and the fourth port V4 is electrically connected to the output terminal of the second mixer circuit 22 through the second switch 21, so that the pilot signal RF is input to the input terminal of the second mixer circuit 22 through the third port V3 and the second switch 21, so that the second DC signal DC output by the second mixer circuit 22 is Q The signal is output through the second switch 21 and the fourth port V4.

[0206] And / or, as shown in Figure 7d, in the amplitude modulation and phase modulation mode, the fifth end c1 of the second switch 21 is conductively connected to the eighth end d2, and the sixth end c2 is conductively connected to the seventh end d1, so that the fourth port V4 is electrically connected to the input end of the second mixing circuit 22 through the second switch 21, and the third port V3 is electrically connected to the output end of the second mixing circuit 22 through the second switch 21, so that the second control signal DC2 is input to the input end of the second mixing circuit 22 through the fourth port V4 and the second switch 21, and the second radio frequency signal RF2 output by the second mixing circuit 22 is output through the second switch 21 and the third port V3.

[0207] In this way, by switching the conduction ports of the double-pole double-throw switch, the first input terminal Vin1 and the third input terminal Vin3 can always serve as the input terminals of the first mixer circuit 12, and the first output terminal Vout1 always serves as the output terminal of the first mixer circuit 12, regardless of whether the circuit is in amplitude and phase detection mode or amplitude and phase modulation mode. The second input terminal Vin2 and the fourth input terminal Vin4 always serve as the input terminals of the second mixer circuit 22, and the second output terminal Vout2 always serves as the output terminal of the second mixer circuit 22. Furthermore, based on one first mixer circuit 12 and one second mixer circuit 22, two double-pole double-throw switches (a first switch and a second switch) can be used to implement a dual-mode circuit with both I / Q modulation and demodulation capabilities, thereby significantly reducing the number of components required to implement I / Q modulation and demodulation functions, as well as the circuit area and cost. This also reduces the complexity and workload of circuit design, processing, and debugging.

[0208] Of course, the first switch 11 and the second switch 21 in the embodiment of the present application may also be other, and the embodiment of the present application is not limited to this, as long as the functions of the first switch 11 and the second switch 21 can be achieved.

[0209] In some embodiments, as shown in Figures 8a and 8b, the circuit 10 further includes a 90° power divider 31 and a local oscillator signal input terminal (the LO port in Figures 8a and 8b), and the 90° power divider 31 is electrically connected between the LO port and the first local oscillator signal input terminal Vin1_LO and the second local oscillator signal input terminal Vin2_LO.

[0210] The 90° power splitter 31 is used to receive the local oscillator signal LO through the LO port, and perform power splitting and phase shifting on the received local oscillator signal LO to obtain a first local oscillator signal LO with the same amplitude and a phase difference of 90°. I and the second local oscillator signal LO Q and inputs the first local oscillation signal LO to the first mixing circuit 12 through the first local oscillation signal input terminal Vin1_LO I The second local oscillator signal LO is input to the second mixer circuit 22 through the second local oscillator signal input terminal Vin2_LO. Q .

[0211] In some embodiments, as shown in Figures 9a and 9b, the circuit 10 further includes a bisection power splitter 32 and a signal transceiver terminal IN / OUT. The bisection power splitter 32 is electrically connected between the signal transceiver terminal IN / OUT and the first port V1 and the third port V3. The bisection power splitter 32 is electrically connected to the first switch 11 via the first port V1 and to the second switch 21 via the third port V3.

[0212] As shown in FIG9a , in the amplitude and phase detection mode, the port of the bisection power splitter 32 electrically connected to the signal transceiver terminal IN / OUT serves as an input port for receiving the pilot signal RF sent by the receiver RX; the port of the bisection power splitter 32 electrically connected to the first switch 11 via the first port V1 and electrically connected to the second switch 21 via the third port V3 serves as an output port, splitting the received pilot signal RF into two completely identical pilot signals RF, and inputting the two pilot signals RF into the first mixing circuit 12 and the second mixing circuit 22, respectively.

[0213] As shown in Figure 9b, in the amplitude modulation and phase modulation mode, the port of the two-way power divider 32 electrically connected to the first switch 11 through the first port V1 and electrically connected to the second switch 21 through the third port V3 serves as an input port to receive the first RF signal RF1 from the first mixing circuit 12 and the second RF signal RF2 from the second mixing circuit 22; the port of the two-way power divider 32 electrically connected to the signal transceiver terminal IN / OUT serves as an output port, and the two-way power divider 32 can combine the first RF signal RF1 and the second RF signal RF2, or in other words, add the first RF signal RF1 and the second RF signal RF2 to obtain the transmission signal RFout, and output the transmission signal RFout.

[0214] In some embodiments, as shown in Figures 10a and 10b, the circuit 10 further includes a bandpass filter 131, a first low-pass filter 14, and a second low-pass filter 24. The bandpass filter 131 is electrically connected to the input side of the first port V1 and the third port V3. Optionally, the bandpass filter 131 is electrically connected between the signal transceiver terminal IN / OUT and the bisection power divider 32. The first low-pass filter 14 is electrically connected between the second port V2 and the first switch 11, and the second low-pass filter 24 is electrically connected between the fourth port V4 and the second switch 21.

[0215] In some possible implementations, as shown in FIG10 a , in the amplitude and phase detection mode, the pilot signal RF can be input to the first input terminal Vin1 of the first mixing circuit 12 and the second input terminal Vin2 of the second mixing circuit 22 through the bandpass filter 131 .

[0216] Similarly, as shown in FIG10b, in the amplitude modulation and phase modulation mode, the first mixer circuit 12 can combine the input first control signal DC1 and the first local oscillation signal LO I The mixing circuit 22 can mix the input second control signal DC2 and the second local oscillator signal LO2 to generate a radio frequency signal (including a fundamental frequency signal and higher harmonics), and input the radio frequency signal (including a fundamental frequency signal and higher harmonics) to the bisection power divider 32. Q The mixing and modulation is performed to produce a radio frequency signal (including a baseband signal and higher harmonics), which is then input to a two-way power splitter 32. The two-way power splitter 32 combines the two received radio frequency signals. The bandpass filter 131 also filters out the higher harmonics in the combined two radio frequency signals and outputs the baseband signal as the transmit signal RFout. In other words, the bandpass filter 131 filters out any clutter in the two radio frequency signals, excluding the first radio frequency signal RF1 and the second radio frequency signal RF2.

[0217] In some possible implementations, as shown in FIG10a, in the amplitude and phase detection mode, the first DC signal DC output by the first mixer circuit 12 is I The second DC signal DC can be output by the first low-pass filter 14 and the second mixing circuit 22 Q The signal can be output through the second low-pass filter 24 .

[0218] Similarly, as shown in FIG10 b , in the AM / PM mode, the first control signal DC1 can be input to the first mixing circuit 12 through the first low-pass filter 14 , and the second control signal DC2 can be input to the second mixing circuit 22 through the second low-pass filter 24 .

[0219] On this basis, as shown in FIG10a, in the amplitude and phase detection mode, the first mixer circuit 12 can input the pilot signal RF and the first local oscillator signal LO I Mixing and demodulating the first DC signal DC I The first low-pass filter 14 can also filter out the high-frequency signal and output a first DC signal DC I The second mixing circuit 22 can mix the input pilot signal RF with the second local oscillator signal LO. Q The mixing and demodulation is the second DC signal DC Q The second low-pass filter 24 can also filter out the high-frequency signal and output a second DC signal DC Q .

[0220] Alternatively, in some other embodiments, as shown in FIG. 10 c and FIG. 10 d , the circuit 10 further includes a first band-pass filter 13 , a second band-pass filter 23 , a first low-pass filter 14 , and a second low-pass filter 24 .

[0221] In some possible implementations, as shown in FIG10c , in the amplitude and phase detection mode, the pilot signal RF can be input to the first input terminal Vin1 of the first mixing circuit 12 through the first bandpass filter 13, and input to the second input terminal Vin2 of the second mixing circuit 22 through the second bandpass filter 23.

[0222] Similarly, as shown in FIG10 d , in the AM / PM mode, the first mixing circuit 12 can output the first RF signal RF1 through the first bandpass filter 13 , and the second mixing circuit 22 can output the second RF signal RF2 through the second bandpass filter 23 .

[0223] On this basis, as shown in FIG10d, in the amplitude modulation and phase modulation mode, the first mixing circuit 12 can combine the input first control signal DC1 and the first local oscillation signal LO I The mixing circuit 22 can mix the input second control signal DC2 and the second local oscillator signal LO2 into a frequency signal. Q The mixed frequency is modulated into a high-frequency signal (including the baseband signal and higher harmonics) and output. The second bandpass filter 23 can also filter out the higher harmonics and output the baseband signal as the second RF signal RF2. In other words, the first bandpass filter 13 is used to filter out all clutter except the first RF signal RF1, and the second bandpass filter 23 is used to filter out all clutter except the second RF signal RF2.

[0224] In some possible implementations, as shown in FIG10c, in the amplitude and phase detection mode, the first DC signal DC output by the first mixer circuit 12 is I The second DC signal DC can be output by the first low-pass filter 14 and the second mixing circuit 22 Q The signal can be output through the second low-pass filter 24 .

[0225] Similarly, as shown in FIG10 d , in the AM / PM mode, the first control signal DC1 can be input to the first mixing circuit 12 through the first low-pass filter 14 , and the second control signal DC2 can be input to the second mixing circuit 22 through the second low-pass filter 24 .

[0226] On this basis, as shown in FIG10c, in the amplitude and phase detection mode, the first mixer circuit 12 can input the pilot signal RF and the first local oscillator signal LO I Mixing and demodulating the first DC signal DC I The first low-pass filter 14 can also filter out the high-frequency signal and output a first DC signal DC I The second mixing circuit 22 can mix the input pilot signal RF with the second local oscillator signal LO. Q Mixing and demodulating the second DC signal DC Q The second low-pass filter 24 can also filter out the high-frequency signal and output a second DC signal DC Q .

[0227] In some embodiments, as shown in FIG. 11 a and FIG. 11 b , the first mixing circuit 12 may include a first combiner 121 and a first mixing diode 122 , and the second mixing circuit 22 may include a second combiner 221 and a second mixing diode 222 .

[0228] As shown in Figure 11a, in the amplitude and phase detection mode, the first input terminal Vin1 of the first combiner 121 is electrically connected to the third terminal b1 of the first switch 11, the third input terminal Vin3 is electrically connected to the first local oscillator signal input terminal Vin1_LO, the output terminal of the first combiner 121 is electrically connected to the input terminal of the first mixing diode 122, and the first output terminal Vout1 of the first mixing diode 122 is electrically connected to the fourth terminal b2 of the first switch 11. The second input terminal Vin2 of the second combiner 221 is electrically connected to the seventh terminal d1 of the second switch 21, the fourth input terminal Vin4 is electrically connected to the second local oscillator signal input terminal Vin2_LO, the output terminal of the second combiner 221 is electrically connected to the input terminal of the second mixing diode 222, and the second output terminal Vout2 of the second mixing diode 222 is electrically connected to the eighth terminal d2 of the second switch 21.

[0229] As shown in Figure 11b, in the amplitude modulation and phase modulation mode, the input end of the first combiner 121 is electrically connected to the third end b1 of the first switch 11 and the first local oscillator signal input end Vin1_LO, respectively. The output end of the first combiner 121 is electrically connected to the input end of the first mixing diode 122. The output end of the first mixing diode 122 is electrically connected to the fourth end b2 of the first switch 11. The input end of the second combiner 221 is electrically connected to the seventh end d1 of the second switch 21 and the second local oscillator signal input end Vin2_LO, respectively. The output end of the second combiner 221 is electrically connected to the input end of the second mixing diode 222. The output end of the second mixing diode 222 is electrically connected to the eighth end d2 of the second switch 21.

[0230] In some possible implementations, the embodiment of the present application can use the first mixing diode 122 and the second mixing diode 222 to mix the two received combined signals. Of course, the embodiment of the present application can also use other circuits or devices to mix the two received signals, and the embodiment of the present application is not limited to this.

[0231] In another embodiment, the present application further provides a wireless transceiver system, as shown in FIG1 , comprising the aforementioned receiver RX and transmitter TX. As shown in FIG3 , the transmitter comprises multiple transceiver components, each of which comprises an antenna, a power amplifier, and the circuit 10 described in the previous embodiment.

[0232] In the embodiment of the present application, the receiver RX is used to transmit an input signal RF to the transmitter TX. When the wireless transceiver system is applied to a microwave wireless power transmission system based on time reversal technology, the input signal can be called a guide signal RF.

[0233] The circuit 10 is configured to output a transmit signal RFout resulting from combining a first radio frequency signal RF1 and a second radio frequency signal RF2.

[0234] The power amplifier is used to amplify the transmission signal RFout to obtain an output signal and output the output signal through the antenna. In other words, the transmitter TX transmits the output signal through the antenna.

[0235] As shown in FIG3 , when the wireless transceiver system is applied to a microwave wireless energy transmission system, the output signal can be referred to as an energy transmission signal.

[0236] The receiver RX is also used to receive the output signal transmitted by the transmitter TX.

[0237] The explanation and beneficial effects of the above wireless transceiver system are the same as the explanation and beneficial effects of the circuit 10 in the above embodiment, and will not be repeated here.

[0238] In the present application, for any transceiver component, I / Q demodulation can be achieved in the amplitude and phase detection mode by simply connecting the first port V1 to the input of the first mixer circuit 12 and the second port V2 to the output of the first mixer circuit 12 using the first switch 11, and connecting the third port V3 to the input of the second mixer circuit 22 and the fourth port V4 to the output of the second mixer circuit 22 using the second switch 21. Similarly, I / Q modulation can be achieved in the amplitude and phase modulation mode by connecting the second port V2 to the input of the first mixer circuit 12 and the first port V1 to the output of the first mixer circuit 12 using the first switch 11, and connecting the fourth port V4 to the input of the second mixer circuit 22 and the third port V3 to the output of the second mixer circuit 22 using the second switch 21. The amplitude and phase detection mode and the amplitude and phase modulation mode share the same first mixer circuit 12 and the same second mixer circuit 22 to implement I / Q demodulation and I / Q modulation. In other words, the amplitude and phase detection circuit and the amplitude and phase modulation circuit are the same circuit, effectively reducing the number of components in the transceiver assembly, and even the area and cost of the transmitter TX. This also reduces the complexity and workload of circuit design, processing, and debugging.

[0239] Moreover, by switching the first switch 11 and the second switch 21, the transceiver component can also support at least one of the amplitude detection function, the phase detection function, the amplitude modulation function, and the phase modulation function respectively; or, the transceiver component can also support the amplitude detection and phase detection function or the amplitude modulation and phase modulation function respectively; or, the transceiver component can also support the amplitude detection and phase detection function and the amplitude modulation and phase modulation function flexibly in time sharing.

[0240] Based on the above, since the transmitter TX of the embodiment of the present application implements time-division multiplexing of amplitude and phase detection circuits and amplitude and phase modulation circuits based on I / Q demodulation and I / Q modulation, and the I / Q mixing structure has a natural broadband characteristic, therefore, whether it is amplitude and phase detection or amplitude and phase modulation, compared with digital delay line phase shifters, LC phase shifters, and resonant phase shifters, the embodiment of the present application has an operating bandwidth of several times the frequency range. As a result, the wireless transceiver system of the embodiment of the present application can be applied to more scenarios and products, without having to design and develop multiple models to adapt to different bandwidths.

[0241] At the same time, since I / Q demodulation and I / Q modulation can directly characterize the phase and amplitude through the input and output analog signals, compared with the digital delay line phase shifter which needs to convert the analog signal into a digital signal and consider the resolution of converting the analog signal into a digital signal, the solution of the present application can output a continuous first DC signal DC I and the second DC signal DC Q, or outputting a continuous first radio frequency signal RF1 and a second radio frequency signal RF2, which has the advantages of high precision, strong resolution, and no quantization error due to analog-to-digital conversion.

[0242] Building on the above, as shown in Figure 3, the transceiver assembly may further include a low-noise amplifier and a third switch 30. The low-noise amplifier is electrically connected between the third switch 30 and the circuit 10. When the antenna is electrically connected to the low-noise amplifier via the third switch 30, the low-noise amplifier receives the pilot signal RF input from the antenna via the third switch 30 and amplifies the pilot signal RF. When the antenna is electrically connected to the power amplifier via the third switch 30, the power amplifier inputs and outputs signals to the antenna via the third switch 30. In this way, each transceiver assembly can receive the pilot signal RF and transmit the power signal via the third switch 30 and a single antenna.

[0243] In another embodiment, the present application also provides a circuit control method, which can be implemented as follows:

[0244] As shown in Figures 7a and 7b, by controlling the first switch 11, the first input terminal Vin1 is selectively electrically connected to the first port V1 or the second port V2 through the first switch 11, and the first output terminal Vout1 is selectively electrically connected to the second port V2 or the first port V1 through the first switch 11. By controlling the second switch 21, the second input terminal Vin2 is selectively electrically connected to the third port V3 or the fourth port V4 through the second switch 21, and the second output terminal Vout2 is selectively electrically connected to the fourth port V4 or the third port V3 through the second switch 21.

[0245] As shown in FIG7a , in one operating mode, the first switch 11 electrically connects the first port V1 to the first input terminal Vin1, thereby inputting a signal to the first mixer circuit 12 via the first port V1. The first switch 11 electrically connects the first output terminal Vout1 to the second port V2, thereby causing the first mixer circuit 12 to output a signal via the second port V2. The second switch 21 electrically connects the third port V3 to the second input terminal Vin2, thereby inputting a signal to the second mixer circuit 22 via the third port V3. The second switch 21 electrically connects the second output terminal Vout2 to the fourth port V4, thereby causing the second mixer circuit 22 to output a signal via the fourth port V4.

[0246] As shown in FIG7b , in another operating mode, the first switch 11 is used to electrically connect the second port V2 to the first input port Vin1, thereby inputting a signal to the first mixer circuit 12 via the second port V2. The first switch 11 is used to electrically connect the first output port Vout1 to the first port V1, thereby causing the first mixer circuit 12 to output a signal via the first port V1. The second switch 21 is used to electrically connect the fourth port V4 to the second input port Vin2, thereby inputting a signal to the second mixer circuit 22 via the fourth port V4. The second switch 21 is used to electrically connect the second output port Vout2 to the third port V3, thereby causing the second mixer circuit 22 to output a signal via the third port V3.

[0247] In this way, the two different operating modes can share the same first mixer circuit 12 and the same second mixer circuit 22. Compared with the solutions proposed in the related art, in which the two operating modes are designed as two independent circuits, the solution of the embodiment of the present application can effectively reduce the number of circuit components, as well as the circuit area and cost. At the same time, it also reduces the complexity of circuit design, the complexity and workload of processing and debugging.

[0248] As shown in Figure 12, the following description uses this circuit as an example, illustrating a dual-mode circuit with both I / Q modulation and demodulation capabilities, and combining the functions of the aforementioned amplitude and phase detection circuit and amplitude and phase modulation circuit. However, it should be understood that the embodiments of the present application are not limited to amplitude and phase detection circuits and amplitude and phase modulation circuits, nor are they limited to circuits designed based on time reversal technology. For example, this circuit can also be applied to the aforementioned high-frequency, multi-channel microwave wireless power transmission, wireless communications, radar, beamforming, beam steering, digital television, and other fields, as long as the circuit connection relationship satisfies the two operating modes described above.

[0249] Specifically, S110, as shown in FIG7c, in the amplitude and phase detection mode, the first input terminal Vin1 is electrically connected to the first port V1 through the first switch 11, and the first output terminal Vout1 is electrically connected to the second port V2 through the first switch 11. The second input terminal Vin2 is electrically connected to the third port V3 through the second switch 21, and the second output terminal Vout2 is electrically connected to the fourth port V4 through the second switch 21.

[0250] As shown in FIG7c, in the amplitude and phase detection mode, the first mixer circuit 12 receives the pilot signal RF input from the first port V1 through the first switch 11 and the first input terminal Vin1 of the first mixer circuit 12, and outputs the first DC signal DC through the first output terminal Vout1 of the first mixer circuit 12, the first switch 11, and the second port V2. IThe second mixer circuit 22 receives the pilot signal RF input from the third port V3 through the second switch 21 and the second input terminal Vin2 of the second mixer circuit 22, and outputs the second DC signal DC through the second output terminal Vout2 of the second mixer circuit 22, the second switch 21, and the fourth port V4. Q ; Among them, the first local oscillator signal LO I and the second local oscillator signal LO Q Orthogonal.

[0251] On this basis, as shown in FIG7c , the first frequency mixing circuit 12 may further include a third input terminal Vin3, the second frequency mixing circuit 22 may further include a fourth input terminal Vin4, and the aforementioned circuits may further include a first local oscillator signal input terminal Vin1_LO and a second local oscillator signal input terminal Vin2_LO. In the amplitude and phase detection mode, the third input terminal Vin3 is electrically connected to the first local oscillator signal input terminal Vin1_LO, and the fourth input terminal Vin4 is electrically connected to the second local oscillator signal input terminal Vin2_LO.

[0252] As shown in FIG7c, the first frequency mixing circuit 12 is further configured to receive the first local oscillator signal LO inputted from the first local oscillator signal input terminal Vin1_LO through the third input terminal Vin3 in the amplitude and phase detection mode. I The first mixing circuit 12 can receive the first local oscillation signal LO I Mixed with the pilot signal RF to obtain the first DC signal DC I .

[0253] As shown in FIG7c, the second mixing circuit 22 is further configured to receive the second local oscillator signal LO inputted from the second local oscillator signal input terminal Vin2_LO via the fourth input terminal Vin4 in the amplitude and phase detection mode. Q The second mixing circuit 22 can receive the second local oscillation signal LO Q Mixed with the pilot signal RF to obtain the second DC signal DC Q Among them, the second local oscillator signal LO Q With the first local oscillator signal LO I Orthogonal.

[0254] S120, as shown in FIG7d, in the amplitude modulation and phase modulation mode, the first input terminal Vin1 is electrically connected to the second port V2 through the first switch 11, and the first output terminal Vout1 is electrically connected to the first port V1 through the first switch 11. The second input terminal Vin2 is electrically connected to the fourth port V4 through the second switch 21, and the second output terminal Vout2 is electrically connected to the third port V3 through the second switch 21.

[0255] As shown in FIG7b , in the amplitude modulation and phase modulation mode, the first mixing circuit 12 is used to receive the first control signal DC1 inputted from the second port V2 through the first switch 11 and the first input terminal Vin1, and output the first radio frequency signal RF1 through the first output terminal Vout1, the first switch 11, and the first port V1; the second mixing circuit 22 is used to receive the second control signal DC2 inputted from the fourth port V4 through the second switch 21 and the second input terminal Vin2, and output the second radio frequency signal RF2 through the second output terminal, the second switch 21, and the third port V3.

[0256] As shown in FIG7d, the first frequency mixing circuit 12 is further configured to receive the first local oscillator signal LO inputted from the first local oscillator signal input terminal Vin1_LO through the third input terminal Vin3 in the amplitude modulation and phase modulation mode. I The first mixing circuit 12 can receive the first local oscillation signal LO I The mixed signal is mixed with the first control signal DC1 to obtain the first radio frequency signal RF1.

[0257] As shown in FIG7d, the second mixing circuit 22 is further configured to receive the second local oscillator signal LO inputted from the second local oscillator signal input terminal Vin2_LO via the fourth input terminal Vin4 in the amplitude modulation and phase modulation mode. Q The second mixing circuit 22 can receive the second local oscillation signal LO Q The mixed signal is mixed with the second control signal DC2 to obtain the second radio frequency signal RF2.

[0258] In some possible implementations, the transmitter mentioned above includes multiple transceiver components, each of which may include the above-mentioned first mixing circuit 12, the second mixing circuit 22, the first port V1, the second port V2, the third port V3, the fourth port V4, the first local oscillator signal input terminal Vin1_LO, the second local oscillator signal input terminal Vin2_LO, the first switch 11, and the second switch 21.

[0259] It should be noted that the solution of the present application can adjust the first switch 11 and the second switch 21 so that, regardless of whether in the amplitude detection and phase detection mode or the amplitude modulation and phase modulation mode, the first input terminal Vin1 and the third input terminal Vin3 always serve as the input terminals of the first mixing circuit 12, and the first output terminal Vout1 always serves as the output terminal of the first mixing circuit 12; the second input terminal Vin2 and the fourth input terminal Vin4 always serve as the input terminals of the second mixing circuit 22, and the second output terminal Vout2 always serves as the output terminal of the second mixing circuit 22.

[0260] In the present application, for any transceiver component, I / Q demodulation can be achieved in the amplitude and phase detection mode by simply connecting the first port V1 to the input of the first mixer circuit 12 and the second port V2 to the output of the first mixer circuit 12 using the first switch 11, and connecting the third port V3 to the input of the second mixer circuit 22 and the fourth port V4 to the output of the second mixer circuit 22 using the second switch 21. Similarly, I / Q modulation can be achieved in the amplitude and phase modulation mode by connecting the second port V2 to the input of the first mixer circuit 12 and the first port V1 to the output of the first mixer circuit 12 using the first switch 11, and connecting the fourth port V4 to the input of the second mixer circuit 22 and the third port V3 to the output of the second mixer circuit 22 using the second switch 21. The amplitude and phase detection mode and the amplitude and phase modulation mode share the same first mixer circuit 12 and the same second mixer circuit 22 to implement I / Q demodulation and I / Q modulation. In other words, the amplitude and phase detection circuit and the amplitude and phase modulation circuit are the same circuit, effectively reducing the number of components in the transceiver assembly, and even the area and cost of the transmitter TX. This also reduces the complexity and workload of circuit design, processing, and debugging.

[0261] Moreover, by switching the first switch 11 and the second switch 21, the transceiver component can also support at least one of the amplitude detection function, the phase detection function, the amplitude modulation function, and the phase modulation function respectively; or, as shown in FIG7c or FIG7d, the transceiver component can also support the amplitude detection and phase detection function or the amplitude modulation and phase modulation function respectively; or, the transceiver component can also support the amplitude detection and phase detection function and the amplitude modulation and phase modulation function flexibly in time sharing.

[0262] Based on the above, since the transmitter TX of the embodiment of the present application implements time-division multiplexing of amplitude and phase detection circuits and amplitude and phase modulation circuits based on I / Q demodulation and I / Q modulation, and the I / Q mixing structure has a natural broadband characteristic, therefore, whether it is amplitude and phase detection or amplitude and phase modulation, compared with digital delay line phase shifters, LC phase shifters, and resonant phase shifters, the embodiment of the present application has an operating bandwidth of several times the frequency range. As a result, the wireless transceiver system of the embodiment of the present application can be applied to more scenarios and products, without having to design and develop multiple models to adapt to different bandwidths.

[0263] At the same time, since I / Q demodulation and I / Q modulation can directly characterize the phase and amplitude through the input and output analog signals, compared with the digital delay line phase shifter which needs to convert the analog signal into a digital signal and consider the resolution of converting the analog signal into a digital signal, the solution of the present application can output a continuous first DC signal DC I and the second DC signal DC Q, or outputting a continuous first radio frequency signal RF1 and a second radio frequency signal RF2, which has the advantages of high precision, strong resolution, and no quantization error due to analog-to-digital conversion.

[0264] In some possible implementations, when performing I / Q demodulation and I / Q modulation using the first mixing circuit 12 and the second mixing circuit 22, the first mixing circuit 12 may be an I-channel mixing circuit, and the second mixing circuit 22 may be a Q-channel mixing circuit. Alternatively, the first mixing circuit 12 may be a Q-channel mixing circuit, and the second mixing circuit 22 may be an I-channel mixing circuit. For ease of description, the following description uses the example of the first mixing circuit 12 being an I-channel mixing circuit and the second mixing circuit 22 being a Q-channel mixing circuit.

[0265] The following formulas are used to derive how to extract the phase and amplitude of the guidance signal RF in the amplitude and phase detection mode, and how to control the phase and amplitude of the transmitted signal in the amplitude modulation and down-modulation mode.

[0266] As shown in FIG7c, assuming that in the amplitude and phase detection mode, the first local oscillator signal input to the first mixing circuit 12 is The second local oscillation signal input to the second mixing circuit 22 The pilot signal input to the first mixer circuit 12 and the second mixer circuit 22 Where A represents the first local oscillator signal LO I and the second local oscillator signal LO Q The amplitude, Indicates the first local oscillator signal LO I The phase of the pilot signal RF is represented by B. represents the phase of the pilot signal RF, ω represents the frequency, and t represents the time.

[0267] The first mixing circuit 12 generates the first local oscillation signal LO I Mixed with the pilot signal RF, a first DC signal DC is obtained. I The second mixing circuit 22 generates the second local oscillation signal LO Q Mixed with the pilot signal RF, a second DC signal DC is obtained. Q . It can be expressed by Formula 1 and Formula 2 respectively:

[0268] The first DC signal DC I and the second DC signal DC Q The first local oscillator signal LO I And the phase and amplitude of the pilot signal RF are expressed as:

[0269] It can be seen from formula 3 that by comparing the first DC signal DC I and the second DC signal DC Q The tangent value of the first local oscillator signal LO can be solved I The relative phase between the first local oscillator signal LO and the pilot signal RF is obtained. I The phase difference between the guidance signal RF:

[0270] Set the first local oscillator signal LO I and the second local oscillator signal LO Q The amplitude A of the guidance signal RF is a certain value, and the amplitude B of the guidance signal RF can be obtained by formula 1:

[0271] Alternatively, set the first local oscillator signal LO I and the second local oscillator signal LO Q The amplitude A of the guidance signal RF is a certain value, and the amplitude B of the guidance signal RF can be obtained by formula 2:

[0272] In this way, the phase and amplitude of the pilot signal RF can be extracted through the above formula 4, formula 5 or formula 6.

[0273] Next, the pilot signal RF may be subjected to time reversal processing to obtain a time reversal signal. The phase and amplitude of the time reversal signal may be obtained based on the phase and amplitude of the pilot signal RF.

[0274] Next, as shown in FIG7d, assuming the amplitude modulation and phase modulation mode, the first local oscillation signal input to the first mixer circuit 12 is The second local oscillation signal input to the second mixing circuit 22 The first mixer circuit 12 also receives the first control signal DC1, and the second mixer circuit 22 also receives the second control signal DC2. I and the second local oscillator signal LO Q The amplitude, Indicates the first local oscillator signal LO I The phase of ω is the frequency, and t is the time.

[0275] The first mixing circuit 12 generates the first local oscillation signal LO I The first control signal DC1 is mixed to obtain the first radio frequency signal RF1. The second mixing circuit 22 mixes the second local oscillation signal LO Q Mixed with the second control signal DC2, a second radio frequency signal RF2 is obtained. This can be expressed by Formula 7 and Formula 8, respectively:

[0276] The first radio frequency signal RF1 and the second radio frequency signal RF2 are added to obtain a transmission signal RFout:

[0277] Performing the sum and difference product on Formula 9 yields the transmit signal RFout:

[0278] According to formula 10, it can be seen that in the first local oscillator signal LO I and the second local oscillator signal LO Q When the amplitude A is a certain value, the phase and amplitude of the transmission signal RFout can be adjusted by adjusting the magnitudes of the first control signal DC1 and the second control signal DC2.

[0279] In this way, the phase of the transmitted signal RFout is The amplitude of the transmitted signal RFout is Therefore, in the amplitude modulation and phase modulation mode, the phase and amplitude of the transmission signal RFout can be adjusted by controlling the magnitudes of the first control signal DC1 and the second control signal DC2 based on the phase and amplitude of the time reversal signal.

[0280] In some possible implementations, the first control signal DC1 and the second control signal DC2 may be DC voltages, and the phase and amplitude of the transmit signal RFout output by the circuit 10 may be adjusted by adjusting the voltage values ​​of the first control signal DC1 and the second control signal DC2.

[0281] In some embodiments, both the first switch 11 and the second switch 21 can be implemented as double-pole double-throw switches. As shown in Figures 7c and 7d, the first switch 11 includes a first terminal a1, a second terminal a2, a third terminal b1, and a fourth terminal b2. The second switch includes a fifth terminal c1, a sixth terminal c2, a seventh terminal d1, and an eighth terminal d2.

[0282] As shown in FIG7c, in the amplitude and phase detection mode, the first terminal a1 of the first switch 11 is conductive with the third terminal b1, and the second terminal a2 is conductive with the fourth terminal b2, so that the first port V1 is electrically connected to the input terminal of the first mixer circuit 12 through the first switch 11, and the second port V2 is electrically connected to the output terminal of the first mixer circuit 12 through the first switch 11, so that the pilot signal RF is input to the input terminal of the first mixer circuit 12 through the first port V1 and the first switch 11, so that the first DC signal DC output by the first mixer circuit 12 is I The output is through the first switch 11 and the second port V2.

[0283] And / or, as shown in Figure 7d, in the amplitude modulation and phase modulation mode, the first end a1 of the first switch 11 is conductively connected to the fourth end b2, and the second end a2 is conductively connected to the third end b1, so that the second port V2 is electrically connected to the input end of the first mixing circuit 12 through the first switch 11, and the first port V1 is electrically connected to the output end of the first mixing circuit 12 through the first switch 11, so that the first control signal DC1 is input to the input end of the first mixing circuit 12 through the second port V2 and the first switch 11, and the first radio frequency signal RF1 output by the first mixing circuit 12 is output through the first switch 11 and the first port V1.

[0284] As shown in FIG7c, in the amplitude and phase detection mode, the fifth terminal c1 of the second switch 21 is conductive with the seventh terminal d1, and the sixth terminal c2 is conductive with the eighth terminal d2, so that the third port V3 is electrically connected to the input terminal of the second mixer circuit 22 through the second switch 21, and the fourth port V4 is electrically connected to the output terminal of the second mixer circuit 22 through the second switch 21, so that the pilot signal RF is input to the input terminal of the second mixer circuit 22 through the third port V3 and the second switch 21, so that the second DC signal DC output by the second mixer circuit 22 is Q The signal is output through the second switch 21 and the fourth port V4.

[0285] And / or, as shown in Figure 7d, in the amplitude modulation and phase modulation mode, the fifth end c1 of the second switch 21 is conductively connected to the eighth end d2, and the sixth end c2 is conductively connected to the seventh end d1, so that the fourth port V4 is electrically connected to the input end of the second mixing circuit 22 through the second switch 21, and the third port V3 is electrically connected to the output end of the second mixing circuit 22 through the second switch 21, so that the second radio frequency signal RF2 output by the second mixing circuit 22 is output through the second switch 21 and the third port V3.

[0286] In this way, by switching the conduction ports of the double-pole double-throw switch, the first input terminal Vin1 and the third input terminal Vin3 can always serve as the input terminals of the first mixer circuit 12, and the first output terminal Vout1 always serves as the output terminal of the first mixer circuit 12, regardless of whether the circuit is in amplitude and phase detection mode or amplitude and phase modulation mode. The second input terminal Vin2 and the fourth input terminal Vin4 always serve as the input terminals of the second mixer circuit 22, and the second output terminal Vout2 always serves as the output terminal of the second mixer circuit 22. Furthermore, based on one first mixer circuit 12 and one second mixer circuit 22, two double-pole double-throw switches (a first switch and a second switch) can be used to implement a dual-mode circuit with both I / Q modulation and demodulation capabilities, thereby significantly reducing the number of components required to implement I / Q modulation and demodulation functions, as well as the circuit area and cost. This also reduces the complexity and workload of circuit design, processing, and debugging.

[0287] Of course, the first switch 11 and the second switch 21 in the embodiment of the present application may also be other, and the embodiment of the present application is not limited to this, as long as the functions of the first switch 11 and the second switch 21 can be achieved.

[0288] In some embodiments, as shown in Figures 8a and 8b, the circuit 10 further includes a 90° power divider 31 and a local oscillator signal input terminal (the LO port in Figures 8a and 8b), and the 90° power divider 31 is electrically connected between the LO port and the first local oscillator signal input terminal Vin1_LO and the second local oscillator signal input terminal Vin2_LO.

[0289] The 90° power splitter 31 is used to receive the local oscillator signal LO through the LO port, and perform power splitting and phase shifting on the received local oscillator signal LO to obtain a first local oscillator signal LO with the same amplitude and a phase difference of 90°. I and the second local oscillator signal LO Q and inputs the first local oscillation signal LO to the first mixing circuit 12 through the first local oscillation signal input terminal Vin1_LO I The second local oscillator signal LO is input to the second mixer circuit 22 through the second local oscillator signal input terminal Vin2_LO. Q .

[0290] In some embodiments, as shown in Figures 9a and 9b, the circuit 10 further includes a bisection power splitter 32 and a signal transceiver terminal IN / OUT. The bisection power splitter 32 is electrically connected between the signal transceiver terminal IN / OUT and the first port V1 and the third port V3. The bisection power splitter 32 is electrically connected to the first switch 11 via the first port V1 and to the second switch 21 via the third port V3.

[0291] As shown in FIG9a , in the amplitude and phase detection mode, the port of the bisection power splitter 32 electrically connected to the signal transceiver terminal IN / OUT serves as an input port for receiving the pilot signal RF sent by the receiver RX; the port of the bisection power splitter 32 electrically connected to the first switch 11 via the first port V1 and electrically connected to the second switch 21 via the third port V3 serves as an output port, splitting the received pilot signal RF into two completely identical pilot signals RF, and inputting the two pilot signals RF into the first mixing circuit 12 and the second mixing circuit 22, respectively.

[0292] As shown in Figure 9b, in the amplitude modulation and phase modulation mode, the port of the two-way power divider 32 electrically connected to the first switch 11 through the first port V1 and electrically connected to the second switch 21 through the third port V3 serves as an input port to receive the first RF signal RF1 from the first mixing circuit 12 and the second RF signal RF2 from the second mixing circuit 22; the port of the two-way power divider 32 electrically connected to the signal transceiver terminal IN / OUT serves as an output port, and the two-way power divider 32 can combine the first RF signal RF1 and the second RF signal RF2, or in other words, add the first RF signal RF1 and the second RF signal RF2 to obtain the transmission signal RFout, and output the transmission signal RFout.

[0293] In some embodiments, as shown in Figures 10a and 10b, the circuit 10 further includes a bandpass filter 131, a first low-pass filter 14, and a second low-pass filter 24. The bandpass filter 131 is electrically connected to the input side of the first port V1 and the third port V3. Optionally, the bandpass filter 131 is electrically connected between the signal transceiver terminal IN / OUT and the bisection power divider 32. The first low-pass filter 14 is electrically connected between the second port V2 and the first switch 11, and the second low-pass filter 24 is electrically connected between the fourth port V4 and the second switch 21.

[0294] In some possible implementations, as shown in FIG10 a , in the amplitude and phase detection mode, the pilot signal RF can be input to the first input terminal Vin1 of the first mixing circuit 12 and the second input terminal Vin2 of the second mixing circuit 22 through the bandpass filter 131 .

[0295] Similarly, as shown in FIG10b, in the amplitude modulation and phase modulation mode, the first mixer circuit 12 can combine the input first control signal DC1 and the first local oscillation signal LO I The mixing circuit 22 can mix the input second control signal DC2 and the second local oscillator signal LO2 to generate a radio frequency signal (including a fundamental frequency signal and higher harmonics), and input the radio frequency signal (including a fundamental frequency signal and higher harmonics) to the bisection power divider 32. Q The mixing and modulation is performed to produce a radio frequency signal (including a baseband signal and higher harmonics), which is then input to a two-way power splitter 32. The two-way power splitter 32 combines the two received radio frequency signals. The bandpass filter 131 also filters out the higher harmonics in the combined two radio frequency signals and outputs the baseband signal as the transmit signal RFout. In other words, the bandpass filter 131 filters out any clutter in the two radio frequency signals, excluding the first radio frequency signal RF1 and the second radio frequency signal RF2.

[0296] In some possible implementations, as shown in FIG10a, in the amplitude and phase detection mode, the first DC signal DC output by the first mixer circuit 12 is I The second DC signal DC can be output by the first low-pass filter 14 and the second mixing circuit 22 Q The signal can be output through the second low-pass filter 24 .

[0297] Similarly, as shown in FIG10 b , in the AM / PM mode, the first control signal DC1 can be input to the first mixing circuit 12 through the first low-pass filter 14 , and the second control signal DC2 can be input to the second mixing circuit 22 through the second low-pass filter 24 .

[0298] On this basis, as shown in FIG10a, in the amplitude and phase detection mode, the first mixer circuit 12 can input the pilot signal RF and the first local oscillator signal LO I Mixing and demodulating the first DC signal DC I The first low-pass filter 14 can also filter out the high-frequency signal and output a first DC signal DC I The second mixing circuit 22 can mix the input pilot signal RF with the second local oscillator signal LO. Q Mixing and demodulating the second DC signal DC Q The second low-pass filter 24 can also filter out the high-frequency signal and output a second DC signal DC Q .

[0299] Alternatively, in some other embodiments, as shown in FIG. 10 c and FIG. 10 d , the circuit 10 further includes a first band-pass filter 13 , a second band-pass filter 23 , a first low-pass filter 14 , and a second low-pass filter 24 .

[0300] In some possible implementations, as shown in FIG10c , in the amplitude and phase detection mode, the pilot signal RF can be input to the first input terminal Vin1 of the first mixing circuit 12 through the first bandpass filter 13, and input to the second input terminal Vin2 of the second mixing circuit 22 through the second bandpass filter 23.

[0301] Similarly, as shown in FIG10 d , in the AM / PM mode, the first mixing circuit 12 can output the first RF signal RF1 through the first bandpass filter 13 , and the second mixing circuit 22 can output the second RF signal RF2 through the second bandpass filter 23 .

[0302] On this basis, as shown in FIG10d, in the amplitude modulation and phase modulation mode, the first mixer circuit 12 can convert the input first control signal DC1 into the first local oscillation signal LO IThe mixing circuit 22 can mix the input second control signal DC2 and the second local oscillator signal LO2 into a frequency signal. Q The mixed frequency is modulated into a high-frequency signal (including the baseband signal and higher harmonics) and output. The second bandpass filter 23 can also filter out the higher harmonics and output the baseband signal as the second RF signal RF2. In other words, the first bandpass filter 13 is used to filter out all clutter except the first RF signal RF1, and the second bandpass filter 23 is used to filter out all clutter except the second RF signal RF2.

[0303] In some possible implementations, as shown in FIG10c, in the amplitude and phase detection mode, the first DC signal DC output by the first mixer circuit 12 is I The second DC signal DC can be output by the first low-pass filter 14 and the second mixing circuit 22 Q The signal can be output through the second low-pass filter 24 .

[0304] Similarly, as shown in FIG10 d , in the AM / PM mode, the first control signal DC1 can be input to the first mixing circuit 12 through the first low-pass filter 14 , and the second control signal DC2 can be input to the second mixing circuit 22 through the second low-pass filter 24 .

[0305] On this basis, as shown in FIG10c, in the amplitude and phase detection mode, the first mixer circuit 12 can input the pilot signal RF and the first local oscillator signal LO I Mixing and demodulating the first DC signal DC I The first low-pass filter 14 can also filter out the high-frequency signal and output a first DC signal DC I The second mixing circuit 22 can mix the input pilot signal RF with the second local oscillator signal LO. Q Mixing and demodulating the second DC signal DC Q The second low-pass filter 24 can also filter out the high-frequency signal and output a second DC signal DC Q .

[0306] In some embodiments, as shown in FIG. 11 a and FIG. 11 b , the first mixing circuit 12 may include a first combiner 121 and a first mixing diode 122 , and the second mixing circuit 22 may include a second combiner 221 and a second mixing diode 222 .

[0307] As shown in Figure 11a, in the amplitude and phase detection mode, the first input terminal Vin1 of the first combiner 121 is electrically connected to the third terminal b1 of the first switch 11, the third input terminal Vin3 is electrically connected to the first local oscillator signal input terminal Vin1_LO, the output terminal of the first combiner 121 is electrically connected to the input terminal of the first mixing diode 122, and the first output terminal Vout1 of the first mixing diode 122 is electrically connected to the fourth terminal b2 of the first switch 11. The second input terminal Vin2 of the second combiner 221 is electrically connected to the seventh terminal d1 of the second switch 21, the fourth input terminal Vin4 is electrically connected to the second local oscillator signal input terminal Vin2_LO, the output terminal of the second combiner 221 is electrically connected to the input terminal of the second mixing diode 222, and the second output terminal Vout2 of the second mixing diode 222 is electrically connected to the eighth terminal d2 of the second switch 21.

[0308] As shown in Figure 11b, in the amplitude modulation and phase modulation mode, the input end of the first combiner 121 is electrically connected to the third end b1 of the first switch 11 and the first local oscillator signal input end Vin1_LO, respectively. The output end of the first combiner 121 is electrically connected to the input end of the first mixing diode 122. The output end of the first mixing diode 122 is electrically connected to the fourth end b2 of the first switch 11. The input end of the second combiner 221 is electrically connected to the seventh end d1 of the second switch 21 and the second local oscillator signal input end Vin2_LO, respectively. The output end of the second combiner 221 is electrically connected to the input end of the second mixing diode 222. The output end of the second mixing diode 222 is electrically connected to the eighth end d2 of the second switch 21.

[0309] In some possible implementations, the embodiment of the present application can use the first mixing diode 122 and the second mixing diode 222 to mix the two received combined signals. Of course, the embodiment of the present application can also use other circuits or devices to mix the two received signals, and the embodiment of the present application is not limited to this.

[0310] Other explanations and beneficial effects of the embodiments of the present application are the same as the explanations and beneficial effects of a circuit in the aforementioned embodiment, and will not be repeated here.

[0311] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A circuit, characterized in that: The system comprises a first frequency mixing circuit, a second frequency mixing circuit, a first port, a second port, a third port, a fourth port, a first switch, and a second switch; the first frequency mixing circuit comprises a first input terminal and a first output terminal, and the second frequency mixing circuit comprises a second input terminal and a second output terminal; The first input end is electrically connected to the first port or the second port selectively through the first switch, and the first output end is electrically connected to the second port or the first port selectively through the first switch; The second input end is selectively electrically connected to the third port or the fourth port through the second switch, and the second output end is selectively electrically connected to the fourth port or the third port through the second switch.

2. The circuit according to claim 1, wherein: In the amplitude and phase detection mode, the first input terminal is electrically connected to the first port through the first switch, and the first output terminal is electrically connected to the second port through the first switch; the second input terminal is electrically connected to the third port through the second switch, and the second output terminal is electrically connected to the fourth port through the second switch.

3. The circuit according to claim 2, characterized in that The first switch and the second switch are both double-pole double-throw switches; the first switch includes a first terminal, a second terminal, a third terminal, and a fourth terminal; the second switch includes a fifth terminal, a sixth terminal, a seventh terminal, and an eighth terminal; In the amplitude and phase detection mode, the first terminal is electrically connected to the third terminal, the first input terminal is electrically connected to the first port via the first terminal and the third terminal; the second terminal is electrically connected to the fourth terminal, and the first output terminal is electrically connected to the second port via the second terminal and the fourth terminal; In the amplitude and phase detection mode, the fifth terminal is electrically connected to the seventh terminal, and the second input terminal is electrically connected to the third port through the fifth terminal and the seventh terminal; the sixth terminal is electrically connected to the eighth terminal, and the second output terminal is electrically connected to the fourth port through the sixth terminal and the eighth terminal.

4. The circuit according to any one of claims 1 to 3, characterized in that: In the amplitude modulation and phase modulation mode, the first input end is electrically connected to the second port through the first switch, and the first output end is electrically connected to the first port through the first switch; the second input end is electrically connected to the fourth port through the second switch, and the second output end is electrically connected to the third port through the second switch.

5. The circuit according to claim 4, characterized in that When both the first switch and the second switch are double-pole double-throw switches, in the amplitude modulation and phase modulation mode, the second end is electrically connected to the third end, the first input end is electrically connected to the second port through the second end and the third end; the first end is electrically connected to the fourth end, and the first output end is electrically connected to the first port through the first end and the fourth end; In the amplitude modulation and phase modulation mode, the sixth terminal is electrically connected to the seventh terminal, and the second input terminal is electrically connected to the fourth port through the sixth terminal and the seventh terminal; the fifth terminal is electrically connected to the eighth terminal, and the second output terminal is electrically connected to the third port through the fifth terminal and the eighth terminal.

6. The circuit according to any one of claims 1 to 5, characterized in that: The first frequency mixing circuit further includes a third input terminal, and the second frequency mixing circuit further includes a fourth input terminal; the circuit further includes a first local oscillation signal input terminal and a second local oscillation signal input terminal; The third input terminal is electrically connected to the first local oscillation signal input terminal, and the fourth input terminal is electrically connected to the second local oscillation signal input terminal.

7. The circuit according to claim 6, characterized in that The circuit further includes a 90° power divider and a local oscillator signal input terminal; the 90° power divider is electrically connected between the local oscillator signal input terminal and the first local oscillator signal input terminal and the second local oscillator signal input terminal.

8. The circuit according to claim 7, characterized in that The first frequency mixing circuit includes a first combiner and a first frequency mixing diode; the first input terminal and the third input terminal are two input terminals of the first combiner, and the first output terminal is the output terminal of the first frequency mixing diode; The first input terminal of the first combiner is electrically connected to the first switch, the third input terminal of the first combiner is electrically connected to the first local oscillator signal input terminal, the output terminal of the first combiner is electrically connected to the input terminal of the first mixing diode, and the first output terminal of the first mixing diode is electrically connected to the first switch; The second frequency mixing circuit includes a second combiner and a second frequency mixing diode; the second input terminal and the fourth input terminal are two input terminals of the second combiner, and the second output terminal is the output terminal of the second frequency mixing diode; The second input end of the second combiner is electrically connected to the second switch, the fourth input end of the second combiner is electrically connected to the second local oscillator signal input end, the output end of the second combiner is electrically connected to the input end of the second mixing diode, and the second output end of the second mixing diode is electrically connected to the second switch.

9. The circuit according to any one of claims 1 to 8, characterized in that: The circuit also includes a two-way power splitter and a signal transceiver; The two-equal power divider is electrically connected between the signal transceiver end and the first port and the third port.

10. The circuit according to claim 9, characterized in that The circuit further includes a bandpass filter, a first lowpass filter, and a second lowpass filter; The bandpass filter is electrically connected between the signal transceiver and the bisection power divider; The first low-pass filter is electrically connected between the second port and the first switch, and the second low-pass filter is electrically connected between the fourth port and the second switch.

11. A wireless transceiver system, characterized in that: The device comprises a receiver and a transmitter, wherein the transmitter comprises a plurality of transceiver components, and the transceiver components comprise an antenna, a power amplifier, and the circuit according to any one of claims 1 to 10; The receiver is configured to transmit an input signal to the transmitter; The circuit is configured to receive the input signal and output a transmit signal obtained by combining the first radio frequency signal and the second radio frequency signal; The power amplifier is used to amplify the transmission signal to obtain an output signal, and output the output signal through the antenna; The receiver is further configured to receive the output signal.

12. The wireless transceiver system according to claim 11, wherein: The wireless transceiver system further includes a low noise amplifier and a third switch; the low noise amplifier is electrically connected between the third switch and the circuit; When the antenna is electrically connected to the low-noise amplifier through the third switch, the low-noise amplifier is used to receive the input signal input by the antenna through the third switch and amplify the input signal; When the antenna is electrically connected to the power amplifier through the third switch, the power amplifier inputs the output signal to the antenna through the third switch.

13. A circuit control method, characterized in that: The circuit includes a first mixing circuit, a second mixing circuit, a first port, a second port, a third port, a fourth port, a first switch, and a second switch; the first mixing circuit includes a first input terminal and a first output terminal, and the second mixing circuit includes a second input terminal and a second output terminal; and a control method for the circuit includes: By controlling the first switch, the first input end is selectively electrically connected to the first port or the second port through the first switch, and the first output end is selectively electrically connected to the second port or the first port through the first switch; by controlling the second switch, the second input end is selectively electrically connected to the third port or the fourth port through the second switch, and the second output end is selectively electrically connected to the fourth port or the third port through the second switch.

14. The circuit control method according to claim 13, characterized in that: The controlling the first switch so that the first input terminal is selectively electrically connected to the first port or the second port through the first switch, and the first output terminal is selectively electrically connected to the second port or the first port through the first switch, includes: In the amplitude and phase detection mode, by controlling the first switch, the first input end is electrically connected to the first port through the first switch, and the first output end is electrically connected to the second port through the first switch; The controlling the second switch so that the second input terminal is selectively electrically connected to the third port or the fourth port through the second switch, and the second output terminal is selectively electrically connected to the fourth port or the third port through the second switch, comprises: In the amplitude and phase detection mode, the second switch is controlled so that the second input terminal is electrically connected to the third port through the second switch, and the second output terminal is electrically connected to the fourth port through the second switch.

15. The circuit control method according to claim 14, characterized in that: The first switch and the second switch are both double-pole double-throw switches; the first switch includes a first terminal, a second terminal, a third terminal, and a fourth terminal; the second switch includes a fifth terminal, a sixth terminal, a seventh terminal, and an eighth terminal; In the amplitude and phase detection mode, controlling the first switch so that the first input end is electrically connected to the first port through the first switch, and the first output end is electrically connected to the second port through the first switch, includes: In the amplitude and phase detection mode, by controlling the first end to be electrically connected to the third end and controlling the second end to be electrically connected to the fourth end, the first input end is electrically connected to the first port through the first end and the third end, and the first output end is electrically connected to the second port through the second end and the fourth end; In the amplitude and phase detection mode, controlling the second switch so that the second input terminal is electrically connected to the third port through the second switch, and the second output terminal is electrically connected to the fourth port through the second switch, includes: In the amplitude and phase detection mode, by controlling the fifth terminal to be electrically connected to the seventh terminal and controlling the sixth terminal to be electrically connected to the eighth terminal, the second input terminal is electrically connected to the third port through the fifth terminal and the seventh terminal, and the second output terminal is electrically connected to the fourth port through the sixth terminal and the eighth terminal.

16. The circuit control method according to any one of claims 13 to 15, characterized in that: In a case where both the first switch and the second switch are double-pole double-throw switches, controlling the first switch so that the first input end is selectively electrically connected to the first port or the second port through the first switch, and the first output end is selectively electrically connected to the second port or the first port through the first switch, includes: In the amplitude modulation and phase modulation mode, by controlling the first switch, the first input end is electrically connected to the second port through the first switch, and the first output end is electrically connected to the first port through the first switch; The controlling the second switch so that the second input terminal is selectively electrically connected to the third port or the fourth port through the second switch, and the second output terminal is selectively electrically connected to the fourth port or the third port through the second switch, comprises: In the amplitude modulation and phase modulation mode, the second switch is controlled so that the second input end is electrically connected to the fourth port through the second switch, and the second output end is electrically connected to the third port through the second switch.

17. The circuit control method according to claim 16, characterized in that: The first switch and the second switch are both double-pole double-throw switches; the first switch includes a first terminal, a second terminal, a third terminal, and a fourth terminal; the second switch includes a fifth terminal, a sixth terminal, a seventh terminal, and an eighth terminal; The method of controlling the first switch in the amplitude modulation and phase modulation mode so that the first input terminal is electrically connected to the second port through the first switch and the first output terminal is electrically connected to the first port through the first switch includes: In the amplitude modulation and phase modulation mode, by controlling the second end to be electrically connected to the third end and controlling the first end to be electrically connected to the fourth end, the first input end is electrically connected to the second port through the second end and the third end, and the first output end is electrically connected to the first port through the first end and the fourth end; In the amplitude modulation and phase modulation mode, controlling the second switch so that the second input end is electrically connected to the fourth port through the second switch, and the second output end is electrically connected to the third port through the second switch, includes: In the amplitude modulation and phase modulation mode, by controlling the sixth terminal to be electrically connected to the seventh terminal and controlling the fifth terminal to be electrically connected to the eighth terminal, the second input terminal is electrically connected to the fourth port through the sixth terminal and the seventh terminal, and the second output terminal is electrically connected to the third port through the fifth terminal and the eighth terminal.

18. The circuit control method according to any one of claims 13 to 17, characterized in that: The first frequency mixing circuit further includes a third input terminal, and the second frequency mixing circuit further includes a fourth input terminal; the circuit further includes a first local oscillation signal input terminal and a second local oscillation signal input terminal; The control method of the circuit further includes: The third input terminal is controlled to be electrically connected to the first local oscillation signal input terminal, and the fourth input terminal is controlled to be electrically connected to the second local oscillation signal input terminal.

19. A chip, characterized in that: The invention comprises the circuit according to any one of claims 1 to 10.

20. An electronic device, characterized in that: The device comprises a circuit board and the chip according to claim 19, wherein the chip is arranged on the circuit board.

21. A computer-readable storage medium storing instructions, characterized in that: When the instruction is executed on an electronic device, the electronic device executes the circuit control method according to any one of claims 13 to 18.

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