SDR microwave transmitter-receiver unit covering Ku full wave band

Abstract

The utility model discloses a Ku full wave band covered SDR microwave transceiver receiving and transmitting unit, comprising a microwave receiving and transmitting unit, the microwave receiving and transmitting unit comprises two paths of radio frequency transmitting units, two paths of radio frequency receiving units and a radio frequency receiving and transmitting processing unit, and each unit is arranged in an independent cavity and is communicated with each other through a groove; the radio frequency transmitting unit comprises a driving amplifier, a high-power amplifier, a parallel coupling line, a driving amplifier, a high-power amplifier, a parallel coupling line and a transmitting power combiner, and the parallel coupling line is connected with a feedback loop of the first radio frequency integrated transceiving processor. The universal microwave transceiving unit provides two transmitting channels and two receiving channels which are completely independent from each other, the frequency and the bandwidth can be flexibly configured, the two channels can realize adjacent channel configuration on the same polarization and can also be configured at any interval, and each transmitting branch supports DPD and high-order modulation and adapts to a scene with a higher capacity requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic waves and microwaves, in particular to a Ku full-band SDR microwave communication transceiver unit. Background Art

[0002] In wireless communication, especially in digital microwave communication, a radio frequency unit is required. In the prior art, the radio frequency unit has a complex structure, narrow bandwidth, poor circuit anti-electromagnetic interference capability, high cost and poor versatility.

[0003] The following is an existing patent for a digital microwave transceiver:

[0004] Existing patent 1: CN200820078774.6, which provides a 15GHz PDH digital microwave transceiver. The 15GHz PDH digital microwave transceiver of the utility model includes a transmitting unit and a receiving unit. The transmitting unit includes a transmitting local oscillator and a high power amplifier. The transmitting local oscillator includes a voltage-controlled oscillator, a radio frequency amplifier, a power divider, a frequency doubler, a power driver, and a parallel line coupling filter. The transmitting local oscillator and the high power amplifier are connected through a microstrip line; the receiving unit includes a receiving local oscillator, a mixer, an image filter, a low noise amplifier, etc. The receiving local oscillator includes a voltage-controlled oscillator, a buffer amplifier, a frequency doubler, an amplifier, a parallel line coupling filter, etc. The receiving local oscillator and the mixer and the mixer and the low noise amplifier are connected through microstrip lines. The signal from the indoor unit first passes through the control unit; after being processed, it is connected to the intermediate frequency unit; the intermediate frequency unit separates the transmitting and receiving intermediate frequencies, and the transmitting intermediate frequency is directly modulated to the transmitting local oscillator; the transmitting local oscillator signal is transmitted through a high power efficiency and duplexer. The received 15GHz digital microwave signal enters the low noise amplifier through the duplexer, and then enters the mixer to mix with the received local oscillator signal. The mixed received intermediate frequency enters the intermediate frequency unit, and then enters the indoor unit through the control unit. The transmitting unit and the receiving unit are arranged on the same radio frequency board. The transmitting unit and the receiving unit are arranged on the same radio frequency board. The radio frequency board includes multiple cavities, and the adjacent cavities are interconnected through grooves. The circuit module includes one or more of the following circuit modules: phase-locked loop circuit, voltage-controlled oscillator, radio frequency amplifier, double frequency circuit, filter; the length of the radio frequency board is less than or equal to 136mm, and the width is less than or equal to 50mm. The modulation signal (also including the locking signal and the locking voltage) enters from the SMA seat 10, passes through the voltage-controlled oscillator (VCO) 11 and the amplifier, and enters the power divider 12. After passing through the divider, one of the signals is used to indicate the phase-locked signal, and the other signal enters the double frequency unit 13 through the amplifier, and then enters the monolithic microwave integrated circuit (MMIC) 15 through the sending parallel line coupling filter 14, and is transmitted through the amplifier. In the receiving unit, the received digital microwave signal enters through the SMA socket 1, passes through the two-stage low noise amplifier 2, the mirror filter 3, and reaches the mixer 4. The mixed intermediate frequency signal passes through the intermediate frequency filter 5 and the intermediate frequency amplifier and finally enters the intermediate frequency unit through the MCX socket. The receiving local oscillator part is connected in sequence by the voltage controlled oscillator 9, the buffer amplifier, the doubler 8 and the parallel line coupling filter 7.

[0005] The existing solutions have some shortcomings:

[0006] 1. It can only be used in the 15GHz frequency band, with narrow bandwidth and poor versatility.

[0007] 2. The transmitting unit includes a local oscillator and a high-power amplifier. The local oscillator includes a voltage-controlled oscillator, a radio frequency amplifier, a power divider, a doubler, a power driver, and a parallel-line coupled filter. The receiving unit includes a receiving local oscillator, a mixer, a mirror filter, a low-noise amplifier, etc. The receiving local oscillator includes a voltage-controlled oscillator, a buffer amplifier, a doubler, an amplifier, a parallel-line coupled filter, etc. Most of them use discrete devices, have many circuit modules, and have a complex structure.

[0008] 3. Does not support large bandwidth and high-order modulation.

[0009] 4. It only includes one transmission and one reception, which is not suitable for scenarios with large capacity requirements. Utility Model Content

[0010] The purpose of the utility model is to provide a SDR microwave communication transceiver unit covering the full Ku band to solve the problems raised in the above background technology.

[0011] To achieve the above object, the utility model provides the following technical solutions: a Ku full-band SDR microwave communication transceiver unit, comprising a microwave transceiver unit, wherein the microwave transceiver unit comprises a 2-way radio frequency transmitting unit, a 2-way radio frequency receiving unit and a radio frequency transceiver processing unit, and each unit is arranged in an independent cavity and interconnected through a groove;

[0012] The RF transmitting unit includes a driving amplifier, a high power amplifier, a parallel coupling line 1, a driving amplifier, a high power amplifier, a parallel coupling line 2 and a transmitting power synthesizer, the parallel coupling line 1 is connected to a feedback loop of a RF integrated transceiver processor 1, and the parallel coupling line 2 is connected to a feedback loop of a RF integrated transceiver processor 2; the RF receiving unit includes a low noise amplifier and a receiving power splitter, and the RF transceiver processing unit includes a RF integrated transceiver processor 1 and a RF integrated transceiver processor 2;

[0013] The RF transmission output end of the RF integrated transceiver processor one is connected to the input end of the high power amplifier through a driving amplifier, and the output end of the high power amplifier is connected to the input end of the transmission power synthesizer input port one; the RF transmission output end of the RF integrated transceiver processor two is connected to the input end of the high power amplifier through a driving amplifier, and the output end of the high power amplifier is connected to the input end of the transmission power synthesizer input port two, and the transmission power synthesizer input port three is the output end of the microwave transceiver unit; the input end of the low noise amplifier is the input end of the microwave transceiver unit, the output end of the low noise amplifier is connected to the input port of the receiving power splitter, and the two output ports of the receiving power splitter are respectively connected to the RF receiving input ends of the RF integrated transceiver processor one and the RF integrated transceiver processor two.

[0014] Preferably, the driver amplifier, driver amplifier, and low noise amplifier: Gain 19dB, Output P1dB 15dBm, OIP3 25dBm, Return Loss>10dB, Isolation>35dB;

[0015] High power amplifier 203, high power amplifier 209: Gain 27.5dB, Output P1dB33.5dBm, Psat36dBm, OIP3 41dBm, Return Loss<-10dB;

[0016] Parallel coupling line 1 214, parallel coupling line 2 215: S21<0.5dB, S31:-20dB, S41<-35dB;

[0017] Transmitting power combiner 204, receiving power splitter 206: Power Handling, 1W; Insertion Loss <3.5dB; Isolation> 25dB;

[0018] RF transceiver processing unit: Input Return Loss<-10dB; Maximum InputPower,-8dBm; NF@Maxmum Gain,8dB; Input P1dB,0dBm; IIP3,8dBm; RX-TX Isolation:>40dB.

[0019] Preferably, the RF transmitting unit, RF receiving unit and RF transceiver processing unit are respectively arranged in several independent cavities, and adjacent cavities are interconnected through grooves. The cavities include a first cavity, a second cavity, a third cavity, a fourth cavity, a fifth cavity, a sixth cavity, a seventh cavity, an eighth cavity, a ninth cavity, a tenth cavity and an eleventh cavity.

[0020] Preferably, the first cavity is provided with a low-noise amplifier, the second cavity is provided with a receiving power splitter, the third cavity is provided with a driving amplifier, the fourth cavity is provided with a high-power amplifier, the fifth cavity is provided with a driving amplifier, the sixth cavity is provided with a high-power amplifier, the seventh cavity is provided with a transmitting power synthesizer, the eighth cavity is provided with a RF integrated transceiver processor 1, the ninth cavity is provided with a RF integrated transceiver processor 2, the tenth cavity is provided with a microwave transceiver unit transmitting port, and the eleventh cavity is provided with a microwave transceiver unit receiving port.

[0021] Preferably, the connection relationship of the microwave transceiver unit is as follows: the output end of the IP protocol processing unit of the baseband board is connected to the transmitting intermediate frequency interface 1 and the transmitting intermediate frequency interface 2 of the radio frequency unit through the modulation and demodulation unit and the signal control unit in sequence, the radio frequency unit and the duplexer are interactively connected through the waveguide port, and the receiving baseband interface 1 and the receiving baseband interface 2 of the radio frequency unit are connected to the input end signal of the IP protocol processing unit through the signal control unit and the modulation and demodulation unit in sequence.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] 1. The radio frequency transmitting unit, radio frequency receiving unit and radio frequency transceiver processing unit of the utility model are respectively arranged in a plurality of independent cavities, and the adjacent cavities are interconnected through grooves. The structure is simple and compact, the volume is small, and the circuit has strong anti-electromagnetic interference capability.

[0024] 2. The RF integrated transceiver processor highly integrates the RF transmitting frequency conversion unit and the RF receiving frequency conversion unit, which solves the image suppression at the receiving end, greatly simplifies the circuit and optimizes the cost; it integrates the transmitting power pre-distortion unit to improve the linearity of the transmitting power; it integrates the loopback circuit to facilitate the self-detection of the RF unit.

[0025] 3. Two completely independent transmit and receive channels, with flexible configuration of frequency and bandwidth. The two channels can be configured in adjacent channel configuration (ACCP) on the same polarization, or at any interval.

[0026] 4. The receiving end shares a low-noise amplifier, which effectively improves the system receiving sensitivity.

[0027] 5. The RF transceiver processing unit uses two independent RF integrated transceiver processors to realize two completely independent transmit channels and receive channels, and can flexibly configure the frequency and bandwidth, so that the RF of the two channels can be independent. The two channels can realize adjacent channel configuration (ACCP) on the same polarization, and can also be configured at any interval, which greatly increases the flexibility of the system.

[0028] 6. The transmitter uses a high-isolation broadband synthesizer to effectively solve the interference between the two channels and improve the digital pre-distortion effect; the receiver uses the same high-isolation broadband power divider to evenly distribute the input signal to two independent receiving channels and ensure that the two receiving channels are isolated from each other.

[0029] 7. It can meet various ETSI / FCC frequency band standards and bandwidth standards, has a large bandwidth, and supports adjacent channel configuration.

[0030] 8. Universal hardware greatly simplifies the procurement and production process, greatly improving productivity and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the circuit structure and signal flow of the radio frequency unit of the utility model applied to the outdoor unit;

[0032] Figure 2 It is a schematic diagram of the cavity structure of the radio frequency unit of the utility model;

[0033] Figure 3 This is a measured diagram of the transmission spectrum template of adjacent aggregated channels in a specific embodiment of the present invention (4096QAM);

[0034] Figure 4 This is a measured diagram of the adjacent aggregated channel transmission spectrum template (QPSK) in a specific embodiment of the present invention.

[0035] In the figure: a first cavity 1, a second cavity 2, a third cavity 3, a fourth cavity 4, a fifth cavity 5, a sixth cavity 6, a seventh cavity 7, an eighth cavity 8, a ninth cavity 9, a tenth cavity 10 and an eleventh cavity 11, a low noise amplifier 205, a receiving power splitter 206, a driver amplifier 202, a high power amplifier 203, a driver amplifier 208, a high power amplifier 209, a transmitting power synthesizer 204, a RF integrated transceiver processor 201, a RF integrated transceiver processor 207, FB parallel coupling line one 214, FB parallel coupling line two 215, and a duplexer 300. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] See also Figure 1-4 The utility model provides a technical solution: a Ku full-band SDR microwave transceiver unit, including a microwave transceiver unit 200, the microwave transceiver unit 200 includes 2-way radio frequency transmitting units, 2-way radio frequency receiving units and a radio frequency transceiver processing unit, and each unit is arranged in an independent cavity and interconnected through a groove;

[0038] The RF transmitting unit includes a driver amplifier 202 and a high power amplifier 203, each providing a gain of 19 dB and 27.5 dB to amplify the first microwave signal, a parallel coupling line 1 214, coupling a part of the output microwave signal to the feedback loop of the RF integrated transceiver processor 201 for DPD, improving the linear performance of the output signal, a driver amplifier 208 and a high power amplifier 209, each providing a gain of 19 dB and 27.5 dB to amplify the second microwave signal, a parallel coupling line 215, coupling a part of the output microwave signal to the feedback loop of the RF integrated transceiver processor 207 for DPD, improving the linear performance of the output signal, and transmitting power synthesis The RF receiving unit includes a low noise amplifier 205, which provides a 19 dB gain and amplifies the received microwave small signal. The receiving power splitter 206 divides the amplified microwave small signal into two paths and outputs them to the next level. The RF transceiver processing unit includes an RF integrated transceiver processor 1 201 and an RF integrated transceiver processor 2 207, which realizes the up-conversion of the intermediate frequency to the microwave signal and the down-conversion of the microwave to the intermediate frequency signal.

[0039] The RF transmission output end of the RF integrated transceiver processor 1 201 is connected to the input end of the high power amplifier 203 through the driver amplifier 202, and the output end of the high power amplifier 203 is connected to the input end of the input port 1 of the transmission power synthesizer 204; the RF transmission output end of the RF integrated transceiver processor 207 is connected to the input end of the high power amplifier 209 through the driver amplifier 208, and the output end of the high power amplifier 209 is connected to the input end of the input port 2 of the transmission power synthesizer 204, and the input port 3 of the transmission power synthesizer 204 is the output end of the microwave transceiver unit 200; the input end of the low noise amplifier 205 is the input end of the microwave transceiver unit 200, and the output end of the low noise amplifier 205 is connected to the input port of the receiving power splitter 206, and the two output ports of the receiving power splitter 206 are respectively connected to the RF receiving input ends of the RF integrated transceiver processor 1 201 and the RF integrated transceiver processor 2 207, and the connections between the above modules are all made of microstrip lines.

[0040] In the present invention, the driver amplifier 202, the driver amplifier 208, and the low noise amplifier 205: Gain 19dB, Output P1dB 15dBm, OIP3 25dBm, Return Loss>10dB, Isolation>35dB;

[0041] High power amplifier 203, high power amplifier 209: Gain 27.5dB, Output P1dB33.5dBm, Psat36dBm, OIP3 41dBm, Return Loss<-10dB;

[0042] Parallel coupling line 1 214, parallel coupling line 2 215: S21<0.5dB, S31:-20dB, S41<-35dB;

[0043] Transmitting power combiner 204, receiving power splitter 206: Power Handling, 1W; Insertion Loss <3.5dB; Isolation> 25dB;

[0044] RF transceiver processing unit: Input Return Loss<-10dB; Maximum InputPower,-8dBm; NF@Maxmum Gain,8dB; Input P1dB,0dBm; IIP3,8dBm; RX-TX Isolation:>40dB.

[0045] In the utility model, the radio frequency transmitting unit, the radio frequency receiving unit and the radio frequency transceiver processing unit are respectively arranged in a number of independent cavities, and the adjacent cavities are interconnected by grooves to form two transmitting channels and receiving channels that are completely independent of each other. The cavity includes a first cavity 1, a second cavity 2, a third cavity 3, a fourth cavity 4, a fifth cavity 5, a sixth cavity 6, a seventh cavity 7, an eighth cavity 8, a ninth cavity 9, a tenth cavity 10 and an eleventh cavity 11.

[0046] In the utility model, the first cavity 1 is provided with a low noise amplifier 205, the second cavity 2 is provided with a receiving power splitter 206, the third cavity 3 is provided with a driving amplifier 202, the fourth cavity 4 is provided with a high power amplifier 203, the fifth cavity 5 is provided with a driving amplifier 208, the sixth cavity 6 is provided with a high power amplifier 209, the seventh cavity 7 is provided with a transmitting power synthesizer 204, the eighth cavity 8 is provided with a radio frequency integrated transceiver processor 1 201, the ninth cavity 9 is provided with a radio frequency integrated transceiver processor 207, the tenth cavity 10 is provided with a microwave transceiver unit 200 transmitting port, the eleventh cavity 11 is provided with a microwave transceiver unit 200 receiving port, and the waveguide size used for the transmitting port and the receiving port corresponds to BJ120.

[0047] In the present utility model, the connection relationship of the microwave transceiver unit 200 is as follows: the output end of the IP protocol processing unit of the baseband board 100 is connected to the transmitting intermediate frequency interface 1 210 and the transmitting intermediate frequency interface 2 212 of the radio frequency unit through the modulation and demodulation unit and the signal control unit in turn, the radio frequency unit is connected to the duplexer 300 through the waveguide port interactive signal connection, and the receiving baseband interface 1 211 and the receiving baseband interface 2 213 of the radio frequency unit are connected to the input end signal of the IP protocol processing unit through the signal control unit and the modulation and demodulation unit in turn.

[0048] The utility model: The microwave transceiver unit 200 works in a point-to-point microwave communication system as follows: The IP digital service data from the user end is first processed by the IP protocol processing unit, the modulation and demodulation unit, and the signal control unit of the baseband board 100 to form two independent transmission intermediate frequency signals, which are respectively connected to the transmission intermediate frequency interfaces 210 and 212 of the radio frequency unit. The transmission intermediate frequency signals are respectively transmitted through the radio frequency integrated transceiver processors 201 and 207 for frequency-scanning microwave signals, and then respectively passed through the respective driving amplifiers 202 and 208 and the high power amplifiers 203 and 209, and then synthesized together through the transmission power synthesizer 204, and transmitted through the duplexer 300. The received digital microwave signal enters the low noise amplifier 205 through the duplexer 300, and after the signal is amplified, it enters the receiving power divider 206, and after the power is equally divided, it enters the radio frequency receiving input terminals of the radio frequency integrated transceiver processor 201 and the radio frequency integrated transceiver processor 207. The RF integrated transceiver processor converts the received digital microwave signal to an intermediate frequency, and then sends it to the signal control unit, modulation and demodulation unit, and IP protocol processing unit of the baseband board 100 through the receiving intermediate frequency interface 211, 213 to form IP digital service data for the user end.

[0049] In the point-to-point microwave communication system of the utility model, the configuration of the microwave transceiver unit is realized by the baseband board supporting network management, and the following parameters can be configured:

[0050] Frequency information: The transmit and receive frequencies can be configured independently, the transmit frequency is 10~15.5GHz, and the receive frequency is 10~15.5GHz;

[0051] Bandwidth: 7~112M;

[0052] Transmit power: minimum power to maximum power, step 1dB;

[0053] Modulation: QPSK~4096QAM.

[0054] The final physical test results of the utility model can meet the index requirements. Figure 3 , Figure 4 This is the actual measured spectrum diagram of the whole machine with two adjacent channels configured in the utility model. The configuration information is as follows:

[0055] The test port is the duplexer output, and the corresponding model of the waveguide coaxial converter is BJ120. This part generates a loss of about 2dB.

[0056] Figure 3 The center frequency of channel 1 is 15.173 GHz, the center frequency of channel 2 is 15.285 GHz, the channel bandwidth is 112 MHz, the modulation mode is 4096 QAM, and the output power is the maximum output power of 18 dBm.

[0057] Figure 4 The center frequency of channel 1 is 15.173 GHz, the center frequency of channel 2 is 15.285 GHz, the channel bandwidth is 112 MHz, the modulation method is QPSK, and the output power is the maximum output power of 20 dBm.

[0058] It can be seen that the spectrum under both configurations can meet the spectrum template requirements for adjacent aggregated channels in ETSI EN 302217-2 marked with the broken line in the figure.

[0059] A Ku-band SDR microwave communication unit with universal hardware in the entire Ku-band (10-15.5GHz) greatly simplifies the procurement and production process, greatly improves the manufacturability and production efficiency; the frequency, bandwidth, transmission, power modulation mode (QPSK-4096QAM), transceiver interval, etc. can be configured by software; the RF transceiver processing unit uses two independent RF integrated transceiver processors, which greatly simplifies the circuit structure, and the RF of the two channels is independent, and the adjacent channel (ACCP) or two channels with any interval can be used in the same frequency band, which greatly increases the system flexibility; both 2 transmission branches support DPD to ensure the linearity of each output signal; the receiving end uses a common low-noise amplifier to solve the problem of receiving end loss when using a dual-channel configuration and improve the system sensitivity by more than 3dB; the built-in transmission power synthesizer synthesizes the two independent transmission channels together, and its high isolation solves the interference between the two transmission channels and improves the digital pre-distortion effect of each transmission channel; the built-in receiving power splitter evenly distributes the signal input from the receiving end to two independent receiving channels, and its high isolation ensures that the two receiving channels are isolated from each other.

[0060] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the embodiments of the utility model have been shown and described, it is understandable to those of ordinary skill in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A Ku-band SDR microwave transceiver unit, characterized in that: It comprises a microwave transceiver unit (200), the microwave transceiver unit (200) comprising two radio frequency transmitting units, two radio frequency receiving units and a radio frequency transceiver processing unit, and each unit is arranged in an independent cavity and is interconnected through a groove; The radio frequency transmitting unit comprises a driving amplifier (202), a high power amplifier (203), a parallel coupling line 1 (214), a driving amplifier (208), a high power amplifier (209), a parallel coupling line 2 (215) and a transmitting power synthesizer (204); the parallel coupling line 1 (214) is connected to a feedback loop of a radio frequency integrated transceiver processor 1 (201); and the parallel coupling line 2 (215) is connected to a feedback loop of a radio frequency integrated transceiver processor 2 (207); the radio frequency receiving unit comprises a low noise amplifier (205) and a receiving power splitter (206); and the radio frequency transceiver processing unit comprises a radio frequency integrated transceiver processor 1 (201) and a radio frequency integrated transceiver processor 2 (207); The radio frequency transmission output end of the radio frequency integrated transceiver processor 1 (201) is connected to the input end of the high power amplifier (203) through a driving amplifier (202), and the output end of the high power amplifier (203) is connected to the input end of the input port 1 of the transmission power synthesizer (204); the radio frequency transmission output end of the radio frequency integrated transceiver processor 2 (207) is connected to the input end of the high power amplifier (209) through a driving amplifier (208), and the output end of the high power amplifier (209) is connected to the input end of the transmission power synthesizer (204). ) is connected to the input end of input port 2, and input port 3 of the transmission power synthesizer (204) is the output end of the microwave transceiver unit (200); the input end of the low noise amplifier (205) is the input end of the microwave transceiver unit (200), the output end of the low noise amplifier (205) is connected to the input port of the receiving power splitter (206), and the two output ports of the receiving power splitter (206) are respectively connected to the radio frequency receiving input ends of the radio frequency integrated transceiver processor 1 (201) and the radio frequency integrated transceiver processor 2 (207).

2. The Ku full-band SDR microwave transceiver unit according to claim 1, characterized in that: The driver amplifier (202), the driver amplifier (208), and the low noise amplifier (205): Gain 19dB, Output P1dB 15dBm, OIP3 25dBm, Return Loss>10dB, Isolation>35dB; High power amplifier (203), high power amplifier (209): Gain 27.5dB, Output P1dB33.5dBm, Psat36dBm, OIP3 41dBm, Return Loss<-10dB; Parallel coupling line 1 (214), parallel coupling line 2 (215): S21<0.5dB, S31:-20dB, S41<-35dB; Transmitting power combiner 204, receiving power splitter 206: Power Handling, 1W; Insertion Loss <3.5dB; Isolation> 25dB; RF transceiver processing unit: Input Return Loss<-10dB; Maximum InputPower,-8dBm; NF@Maxmum Gain,8dB; Input P1dB,0dBm; IIP3,8dBm; RX-TX Isolation:>40dB.

3. The Ku full-band SDR microwave transceiver unit according to claim 1, characterized in that: The radio frequency transmitting unit, the radio frequency receiving unit and the radio frequency transceiver processing unit are respectively arranged in a plurality of independent cavities, and adjacent cavities are interconnected through grooves. The cavities include a first cavity (1), a second cavity (2), a third cavity (3), a fourth cavity (4), a fifth cavity (5), a sixth cavity (6), a seventh cavity (7), an eighth cavity (8), a ninth cavity (9), a tenth cavity (10) and an eleventh cavity (11).

4. The SDR microwave transceiver unit covering the full Ku band according to claim 3, characterized in that: The first cavity (1) is provided with a low noise amplifier (205), the second cavity (2) is provided with a receiving power splitter (206), the third cavity (3) is provided with a driving amplifier (202), the fourth cavity (4) is provided with a high power amplifier (203), the fifth cavity (5) is provided with a driving amplifier (208), the sixth cavity (6) is provided with a high power amplifier (209), the seventh cavity (7) is provided with a transmitting power synthesizer (204), the eighth cavity (8) is provided with a radio frequency integrated transceiver processor 1 (201), the ninth cavity (9) is provided with a radio frequency integrated transceiver processor 2 (207), the tenth cavity (10) is provided with a microwave transceiver unit (200) transmitting port, and the eleventh cavity (11) is provided with a microwave transceiver unit (200) receiving port.

5. The SDR microwave transceiver unit covering the full Ku band according to claim 1, characterized in that: The connection relationship of the microwave transceiver unit (200) is as follows: the output end of the IP protocol processing unit of the baseband board (100) is connected to the transmitting intermediate frequency interface 1 (210) and the transmitting intermediate frequency interface 2 (212) of the radio frequency unit through the modulation and demodulation unit and the signal control unit in sequence, the radio frequency unit is connected to the duplexer (300) through the waveguide port for interactive signal connection, and the receiving baseband interface 1 (211) and the receiving baseband interface 2 (213) of the radio frequency unit are connected to the input end of the IP protocol processing unit through the signal control unit and the modulation and demodulation unit in sequence.

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