Low-power-consumption Ku / Ka dual-band transceiver

Abstract

The invention discloses a low-power-consumption Ku / Ka dual-band transceiver, which relates to a low-power-consumption dual-band transceiving combination in the field of communication, realizes time-sharing work of Ku and Ka bands, and has a radio frequency signal transceiving function. The ultra-low-power-consumption Ku-band band-pass filter is composed of an intermediate frequency unit, a Ku-band receiving and transmitting module, an ultra-low-power-consumption modulation switch circuit, a Ka-band receiving and transmitting module, a Ku-band duplexer, a Ka-band duplexer, a frequency source module and the like. Low power consumption is realized through technologies of circuit multiplexing, pulse modulation switch switching, integrated design and the like. The low-power-consumption miniaturized dual-band transceiver has the advantages of miniaturization, low stray, good amplitude-frequency, stable and reliable performance and the like, can normally work in a relatively severe environment, and is particularly suitable for serving as a low-power-consumption miniaturized dual-band transceiver of a satellite communication terminal.

Description

Technical Field

[0001] The present invention relates to a low-power Ku / Ka dual-band transceiver in the field of wireless communication, and is particularly suitable for the transceiver combination design of a dual-band, low-power, miniaturized satellite communication terminal. Background Art

[0002] With the development of communication technology, people have an increasingly urgent need for multi-band, low-power communication terminal equipment. Currently, most miniaturized satellite communication equipment is single-band. Due to the single continuous on / off working mode, the power consumption is relatively high and the equipment standby time is short. If it is compatible with multiple frequency bands, it is necessary to integrate multiple devices of different frequency bands and switch them through a separate switch module, resulting in a large size, high power consumption, and poor portability and practicality. Therefore, a low-power Ku / Ka dual-band transceiver is needed to support the demand for dual-band low-power satellite communication equipment. Summary of the invention

[0003] The technical problem to be solved by the present invention is to avoid the shortcomings of the above-mentioned background technology and provide a low-power Ku / Ka dual-band transceiver. The present invention integrates the transmitting channel and receiving channel of the two frequency bands of Ku and Ka, and can work normally in a harsh environment of -40℃~+60℃. It also has the advantages of miniaturization, low spurious, good amplitude-frequency, stable and reliable performance, etc.

[0004] The technical solution adopted by the present invention is:

[0005] A low-power Ku / Ka dual-band transceiver comprises an intermediate frequency unit 1, a Ku-band duplexer 5, a Ka-band duplexer 6 and a frequency source module 7, and also comprises a Ku-band transceiver module 2, an ultra-low power consumption modulation switch circuit 3 and a Ka-band transceiver module 4.

[0006] Under the action of the ultra-low power consumption modulation switch circuit 3, the intermediate frequency unit 1 filters, attenuates and amplifies the transmitted and received input intermediate frequency signals, and then outputs the transmitted intermediate frequency signals to the Ku-band transceiver module 2 or the Ka-band transceiver module 4 through the switch selection, and outputs the received intermediate frequency signals directly.

[0007] Under the action of the ultra-low power consumption modulation switch circuit 3, the Ku-band transceiver module 2, on the one hand, mixes the transmitting intermediate frequency signal input by the intermediate frequency unit 1 with the transmitting local oscillator signal output by the frequency source module 7 to obtain a Ku-band transmitting signal, which is then filtered and power amplified and output to the Ku-band duplexer 5; on the other hand, the Ku-band receiving signal input by the Ku-band duplexer 5 is mixed with the receiving local oscillator signal output by the frequency source module 7 after low noise amplification to obtain a receiving intermediate frequency signal, which is then filtered and output to the intermediate frequency unit 1.

[0008] The ultra-low power modulation switch circuit 3 receives the power supply and control signals input from the outside, and after conversion and control, outputs low-power control instructions, which are respectively input to the intermediate frequency unit 1, the Ku-band transceiver module 2, the Ka-band transceiver module 4 and the frequency source module 7, and reports the returned status information.

[0009] Under the action of the ultra-low power consumption modulation switch circuit 3, the Ka-band transceiver module 4, on the one hand, mixes the transmitting intermediate frequency signal input by the intermediate frequency unit 1 with the transmitting local oscillator signal output by the frequency source module 7 to obtain a Ka-band transmitting signal, which is then filtered and power amplified and output to the Ka-band duplexer 6; on the other hand, the Ka-band receiving signal input by the Ka-band duplexer 6 is mixed with the receiving local oscillator signal output by the frequency source module 7 after low-noise amplification to obtain a receiving intermediate frequency signal, which is then filtered and output to the intermediate frequency unit 1.

[0010] The Ku-band duplexer 5 filters the Ku-band transmission signal output by the Ku-band transceiver module 2 and then outputs it, and at the same time filters the input Ku-band reception signal and then outputs it to the Ku-band transceiver module 2 .

[0011] The Ka-band duplexer 6 filters the Ka-band transmission signal output by the Ka-band transceiver module 4 and then outputs it, and at the same time filters the input Ka-band reception signal and then outputs it to the Ka-band transceiver module 4.

[0012] Under the action of the ultra-low power consumption modulation switch circuit 3, the frequency source module 7 divides the input 100MHz reference source signal into two, and then outputs it into a variable transmitting local oscillator signal and a receiving local oscillator signal through a phase-locked loop. After the local oscillator signal is filtered and amplified, it is output to the Ku-band transceiver module 2 and the Ka-band transceiver module 4 respectively, and the locking indication information is sent to the ultra-low power consumption modulation switch circuit 3 at the same time.

[0013] Among them, the Ku-band transceiver module 2 includes two branches of transmission and reception. The transmission branch is mainly composed of a Ku transmission mixer circuit 16, a hairpin filter 17, a Ku gain amplifier 18, a hairpin filter 19, a Ku driver amplifier 20, a Ku power amplifier 21 and a Ku-band integrated transition filter 22. Among them, the Ku transmission mixer circuit 16 mixes the input intermediate frequency signal with the transmission local oscillator signal output by the frequency source module 7 to obtain a Ku-band signal. The hairpin filter 17 and the hairpin filter 19 mainly filter out the local oscillator leakage signal and combined spurious after mixing. The Ku gain amplifier 18 performs gain amplification on the Ku-band signal. The Ku driver amplifier 20 amplifies the Ku transmission signal to a certain power to drive the final power amplifier. The Ku power amplifier 21 performs the final power amplification on the Ku transmission signal. The Ku-band integrated transition filter 22 completes the conversion and transition transmission of the Ku transmission signal and filters the receiving band noise; the receiving branch It is mainly composed of a Ku waveguide-microstrip transition 23, a Ku low-noise amplifier 24, a Ku low-noise amplifier 25, an image suppression filter 26 and a Ku receiving mixing circuit 27. The Ku waveguide-microstrip transition 23 completes the conversion of the signal transmission mode from waveguide to microstrip. The low-noise amplifier 24 and the low-noise amplifier 25 perform low-noise amplification on the Ku-band receiving signal and provide a certain gain. The image suppression filter 26 filters the image interference of the receiving branch. The Ku receiving mixing circuit 27 mixes the amplified Ku receiving signal with the Ku receiving local oscillator signal output by the frequency source module 7 to obtain an intermediate frequency signal, and outputs it to the intermediate frequency unit 1.

[0014] Among them, the ultra-low power consumption modulation switch circuit 3 includes a power supply unit 8, an intermediate frequency switch 9, a pulse modulation switch 10, a logic control 11, a Ku power supply unit 12, a single chip computer 13, a Ka power supply unit 14 and a local oscillator switch 15. The power supply unit 8 receives external input, connects the intermediate frequency switch 9, the pulse modulation switch 10, the logic control 11, the Ku power supply unit 12, the single chip computer 13, the Ka power supply unit 14 and the local oscillator switch 15, and provides a stable DC voltage to each module; the intermediate frequency switch 9 connects the power supply unit 8 and the single chip computer 13, and under the control of the single chip computer 13, outputs a switch signal to the intermediate frequency unit 1; the pulse modulation switch 10 connects the power supply unit 8 and the logic control 11, and under the control of the logic control 11, outputs a synchronous modulation pulse signal to the Ku band transceiver module 2 and the Ka band transceiver module 4; the logic control 11 connects the power supply unit 8, the single chip computer 13 and the external input pulse signal , under the joint action of the external input pulse signal and the single-chip microcomputer 13, the control signal is output to the pulse modulation switch 10; the Ku power supply unit 12 is connected to the power supply unit 8 and the single-chip microcomputer 13, and outputs a DC voltage to the Ku-band transceiver module 2 under the control of the single-chip microcomputer 13; the single-chip microcomputer 13 is connected to the power supply unit 8, the intermediate frequency switch 9, the logic control 11, the Ku power supply unit 12, the Ka power supply unit 14 and the local oscillator switch 15, and provides control instructions for each module; the Ka power supply unit 14 is connected to the power supply unit 8 and the single-chip microcomputer 13, and outputs a DC voltage to the Ka-band transceiver module 4 under the control of the single-chip microcomputer 13; the local oscillator switch 15 is connected to the power supply unit 8 and the single-chip microcomputer 13.

[0015] Among them, the Ka-band transceiver module 4 includes two branches of transmission and reception, and the transmission branch is mainly composed of a Ka transmission mixing circuit 28, a MEMS filter 29, a Ka gain amplifier 30, a Ka isolator 31, a Ka drive amplifier 32, a Ka power amplifier 33 and a Ka-band broadband integrated transition filter 34. Among them, the Ka transmission mixing circuit 28 mixes the input intermediate frequency signal with the transmission local oscillator signal output by the frequency source module 7 to obtain a Ka-band signal, the MEMS filter 29 mainly filters out the local oscillator leakage signal and combined spurious after mixing, the Ka gain amplifier 30 performs gain amplification on the Ka-band signal, the Ka isolator 31 mainly improves the standing wave of the transmission branch and improves the isolation between circuits, the Ka drive amplifier 32 amplifies the Ka transmission signal to a certain power to drive the final power amplifier, the Ka power amplifier 33 performs the final power amplification on the Ka transmission signal, and the Ka-band broadband integrated transition filter 34 completes the conversion and transition transmission of the Ka transmission signal, and receives The band noise is filtered out; the receiving branch is mainly composed of a Ka waveguide-microstrip transition 35, a Ka low-noise amplifier 36, a Ka low-noise amplifier 37, a MEMS filter 38 and a Ka receiving mixing circuit 39. The Ka waveguide-microstrip transition 35 completes the conversion of the signal transmission mode from waveguide to microstrip. The low-noise amplifier 36 and the low-noise amplifier 37 perform low-noise amplification on the Ka-band receiving signal and provide a certain gain. The MEMS filter 38 filters the image frequency interference of the receiving branch. The Ka receiving mixing circuit 39 realizes mixing the amplified Ka receiving signal with the Ka receiving local oscillator signal output by the frequency source module 7 to obtain an intermediate frequency signal, which is output to the intermediate frequency unit 1.

[0016] Among them, the Ku-band integrated transition filter 22 adopts a light and thin integrated design, and its circuit structure includes a 50-ohm microstrip transmission line 40, a stepped impedance microstrip probe 41, a Ku non-standard waveguide transmission cavity 42, a Ku integrated non-standard waveguide conversion 43, a Ku integrated rejection filter 44 and a Ku integrated ultra-thin waveguide conversion junction 45. The 50-ohm microstrip transmission line 40 connects the Ku power amplifier 21 and the stepped impedance microstrip probe 41. The stepped impedance microstrip probe 41 receives the input signal of the 50-ohm microstrip transmission line 40, converts the microstrip transmission mode into the waveguide cavity transmission mode, and outputs it to the Ku non-standard waveguide transmission cavity 42. The Ku non-standard waveguide transmission cavity 42 is connected to the stepped impedance The microstrip probe 41 and the Ku integrated non-standard waveguide conversion 43 form a small microstrip-waveguide conversion circuit with the microstrip probe 41 with stepped impedance. The Ku integrated non-standard waveguide conversion 43 connects the Ku non-standard waveguide transmission cavity 42 and the Ku integrated rejection filter 44 to realize the conversion from non-standard waveguide transmission to standard waveguide transmission. The Ku integrated rejection filter 44 connects the Ku integrated non-standard waveguide conversion 43 and the Ku integrated ultra-thin waveguide conversion junction 45 to complete the rejection filtering of the Ku-band transmission signal. The Ku integrated ultra-thin waveguide conversion junction 45 receives the input signal of the Ku integrated rejection filter 44 and converts the horizontal waveguide transmission of the transmission signal into the vertical waveguide transmission, which is convenient for system integration.

[0017] Among them, the Ka-band broadband integrated transition filter 34 is an integrated integrated circuit, and its circuit structure includes a 50-ohm microstrip transmission line 46, an impedance-transformed transition probe 47, a Ka non-standard waveguide transmission cavity 48, a Ka integrated non-standard waveguide conversion 49, a Ka integrated rejection filter 50 and a Ka integrated ultra-thin waveguide conversion junction 51. The 50-ohm microstrip transmission line 46 connects the Ka power amplifier 33 and the impedance-transformed transition probe 47, and the impedance-transformed transition probe 47 receives the input signal of the 50-ohm microstrip transmission line 46, converts the microstrip transmission mode into the waveguide cavity transmission mode, and outputs it to the Ka non-standard waveguide transmission cavity 48, and the Ka non-standard waveguide transmission cavity 48 is connected to the impedance-transformed transition probe 47. The probe 47 and the Ka integrated non-standard waveguide conversion 49 form a small microstrip-waveguide conversion circuit with the impedance transformation transition probe 47. The Ka integrated non-standard waveguide conversion 49 connects the Ka non-standard waveguide transmission cavity 48 and the Ka integrated blocking filter 50 to realize the conversion from non-standard waveguide transmission to standard waveguide transmission. The Ka integrated blocking filter 50 connects the Ka integrated non-standard waveguide conversion 49 and the Ka integrated ultra-thin waveguide conversion junction 51 to complete the blocking filtering of the Ka-band transmission signal. The Ka integrated ultra-thin waveguide conversion junction 51 receives the input signal of the Ka integrated blocking filter 50, and at the same time converts the horizontal waveguide transmission of the Ka transmission signal into a vertical waveguide transmission, which is convenient for system integration.

[0018] Compared with the background technology, the present invention has the following advantages:

[0019] 1. The ultra-low power consumption modulation switch circuit 3 of the present invention adopts pulse modulation power supply output to control the high-power circuit and the Ku / Ka dual-frequency circuit to work together, which greatly reduces the power consumption of the equipment. The Ku-band transceiver module 2 and the Ka-band transceiver module 4 adopt ultra-thin integrated integration and non-standard transition matching technology to achieve an ultra-light, low-power consumption Ku / Ka dual-band transceiver combination.

[0020] 2. The present invention has a high degree of integration, low power consumption, small debugging workload, and can work normally in a relatively harsh ambient temperature of -40°C to +60°C.

[0021] 3. The present invention has dual-frequency time-sharing operation, wide frequency coverage, and adopts a small integrated design concept, which has promotion and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a principle block diagram of the present invention.

[0023] Figure 2 It is an electrical schematic diagram of the Ku-band transceiver module 2 of the present invention.

[0024] Figure 3 It is an electrical schematic diagram of the ultra-low power consumption modulation switch circuit 3 of the present invention.

[0025] Figure 4 It is an electrical schematic diagram of the Ka-band transceiver module 4 of the present invention.

[0026] Figure 5 It is the electrical schematic diagram of the Ku-band integrated transition filter 22 of the present invention.

[0027] Figure 6 It is the electrical schematic diagram of the Ka-band broadband integrated transition filter 34 of the present invention. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] Figure 1 is an electrical principle block diagram of an embodiment of the present invention, and the embodiment is as follows Figure 1 Connect the lines.

[0030] A low-power Ku / Ka dual-band transceiver comprises an intermediate frequency unit 1, a Ku-band transceiver module 2, an ultra-low power modulation switch circuit 3, a Ka-band transceiver module 4, a Ku-band duplexer 5, a Ka-band duplexer 6 and a frequency source module 7.

[0031] The intermediate frequency unit 1 filters, attenuates and amplifies the transmitted and received input intermediate frequency signals under the action of the ultra-low power consumption modulation switch circuit 3, and then the transmitted intermediate frequency signals are output to the Ku-band transceiver module 2 or the Ka-band transceiver module 4 through the switch selection, and the received intermediate frequency signals are directly output. In the embodiment, the intermediate frequency unit 1 is made of commercially available dedicated amplifier chip HGC329 and attenuator chip HGC2005.

[0032] Under the action of the ultra-low power consumption modulation switch circuit 3, the Ku-band transceiver module 2, on the one hand, mixes the transmission intermediate frequency signal input by the intermediate frequency unit 1 with the transmission local oscillator signal output by the frequency source module 7 to obtain the Ku-band transmission signal, which is then filtered and power-amplified and output to the Ku-band duplexer 5; on the other hand, the Ku-band reception signal input by the Ku-band duplexer 5 is mixed with the reception local oscillator signal output by the frequency source module 7 after low-noise amplification to obtain the reception intermediate frequency signal, which is then filtered and output to the intermediate frequency unit 1. The Ku-band transceiver module 2 of the embodiment is made of a commercially available dedicated chip NC17166C-515M.

[0033] The ultra-low power modulation switch circuit 3 receives the power supply and control signals input from the outside, and after conversion and control, outputs the low-power control instructions, which are respectively input to the intermediate frequency unit 1, the Ku-band transceiver module 2, the Ka-band transceiver module 4 and the frequency source module 7, and reports the returned status information. The ultra-low power modulation switch circuit 3 of the embodiment is made of the commercially available dedicated chip GD32C103TBU6.

[0034] Under the action of the ultra-low power consumption modulation switch circuit 3, the Ka-band transceiver module 4, on the one hand, mixes the transmitting intermediate frequency signal input by the intermediate frequency unit 1 with the transmitting local oscillator signal output by the frequency source module 7 to obtain a Ka-band transmitting signal, which is then filtered and power amplified and output to the Ka-band duplexer 6; on the other hand, the Ka-band receiving signal input by the Ka-band duplexer 6 is mixed with the receiving local oscillator signal output by the frequency source module 7 after low-noise amplification to obtain a receiving intermediate frequency signal, which is then filtered and output to the intermediate frequency unit 1.

[0035] The Ku-band duplexer 5 filters the Ku-band transmission signal output by the Ku-band transceiver module 2 and then outputs it, and at the same time filters the input Ku-band reception signal and then outputs it to the Ku-band transceiver module 2. Embodiment The Ku-band duplexer 5 is made of a commercially available dedicated component MM-Ku / Ka-5216.

[0036] The Ka-band duplexer 6 filters the Ka-band transmission signal output by the Ka-band transceiver module 4 and then outputs it, and at the same time filters the input Ka-band reception signal and then outputs it to the Ka-band transceiver module 4. Embodiment The Ka-band duplexer 6 is made of a commercially available dedicated component MM-Ku / Ka-5216.

[0037] Under the action of the ultra-low power consumption modulation switch circuit 3, the frequency source module 7 divides the input 100MHz reference source signal into two, and then outputs it into a variable transmitting local oscillator signal and a receiving local oscillator signal through a phase-locked loop. After filtering and amplifying the local oscillator signal, it is output to the Ku-band transceiver module 2 and the Ka-band transceiver module 4 respectively, and the locking indication information is sent to the ultra-low power consumption modulation switch circuit 3. The frequency source module 7 of the embodiment is made of a commercially available dedicated phase-locked source ADPLS-W3041-10ATG-1.

[0038] Figure 2 The electrical schematic diagram of the Ku-band transceiver module 2 of the present invention is shown in FIG. Figure 2 Connect the lines.

[0039] The Ku-band transceiver module 2 includes two branches, the transmitting branch is mainly composed of a Ku transmitting mixer circuit 16, a hairpin filter 17, a Ku gain amplifier 18, a hairpin filter 19, a Ku driver amplifier 20, a Ku power amplifier 21 and a Ku-band integrated transition filter 22. Among them, the Ku transmission mixing circuit 16 mixes the input intermediate frequency signal with the transmission local oscillator signal output by the frequency source module 7 to obtain a Ku band signal, the hairpin filter 17 and the hairpin filter 19 mainly filter out the local oscillator leakage signal and the combined spurious after mixing, the Ku gain amplifier 18 performs gain amplification on the Ku band signal, the embodiment Ku gain amplifier 18 is made of a commercially available dedicated amplifier chip ILA-1219B, the Ku driver amplifier 20 amplifies the Ku transmission signal to a certain power to drive the final power amplifier, the embodiment Ku driver amplifier 20 is made of a commercially available dedicated amplifier chip ILA-0618E, the Ku power amplifier 21 performs final power amplification on the Ku transmission signal, the embodiment Ku power amplifier 21 is made of a commercially available dedicated amplifier chip NC11302C-1314P4, and the Ku band integrated transition filter 22 completes the conversion transition transmission of the Ku transmission signal. And the receiving band noise is filtered out; the receiving branch is mainly composed of a Ku waveguide-microstrip transition 23, a Ku low-noise amplifier 24, a Ku low-noise amplifier 25, an image suppression filter 26 and a Ku receiving mixing circuit 27. The Ku waveguide-microstrip transition 23 completes the conversion of the signal transmission mode from waveguide to microstrip. The low-noise amplifier 24 and the low-noise amplifier 25 perform low-noise amplification on the Ku band receiving signal and provide a certain gain. The low-noise amplifier 24 and the low-noise amplifier 25 in the embodiment are made of a commercially available dedicated amplifier chip HGC378. The image frequency suppression filter 26 filters the image frequency interference of the receiving branch. The Ku receiving mixing circuit 27 realizes mixing the amplified Ku receiving signal with the Ku receiving local oscillator signal output by the frequency source module 7 to obtain an intermediate frequency signal, which is output to the intermediate frequency unit 1. The Ku receiving mixing circuit 27 in the embodiment is made of a commercially available dedicated mixer chip NC17166C-515M.

[0040] Figure 3 is an electrical schematic diagram of the ultra-low power consumption modulation switch circuit 3 of the present invention, and the embodiment is as follows Figure 3 Connect the lines.

[0041] The ultra-low power consumption modulation switch circuit 3 includes a power supply unit 8, an intermediate frequency switch 9, a pulse modulation switch 10, a logic control 11, a Ku power supply unit 12, a single chip computer 13, a Ka power supply unit 14 and a local oscillator switch 15. The power supply unit 8 receives external input, connects the intermediate frequency switch 9, the pulse modulation switch 10, the logic control 11, the Ku power supply unit 12, the single-chip computer 13, the Ka power supply unit 14 and the local oscillator switch 15, and provides a stable DC voltage to each module. The power supply unit 8 in the embodiment is made of a commercially available dedicated power supply chip SGM2035C-ADJYUDN6G; the intermediate frequency switch 9 connects the power supply unit 8 and the single-chip computer 13, and under the control of the single-chip computer 13, outputs a switch signal to the intermediate frequency unit 1. The intermediate frequency switch 9 in the embodiment is made of a commercially available dedicated switch chip BW1032D; the pulse modulation switch 10 connects the power supply unit 8 and the logic control 11, and under the control of the logic control 11, outputs a synchronous modulated pulse signal to the Ku-band transceiver module 2 and the Ka-band transceiver module 4. The pulse modulation switch 10 in the embodiment is made of a commercially available dedicated modulation chip NCD116C; the logic control 11 connects the power supply unit 8 and the logic control 11, and under the control of the logic control 11, outputs a synchronous modulated pulse signal to the Ku-band transceiver module 2 and the Ka-band transceiver module 4. 8, the single-chip microcomputer 13 and the external input pulse signal, under the joint action of the external input pulse signal and the single-chip microcomputer 13, outputs a control signal to the pulse modulation switch 10; the Ku power supply unit 12 connects the power supply unit 8 and the single-chip microcomputer 13, and outputs a DC voltage to the Ku-band transceiver module 2 under the control of the single-chip microcomputer 13; the single-chip microcomputer 13 connects the power supply unit 8, the intermediate frequency switch 9, the logic control 11, the Ku power supply unit 12, the Ka power supply unit 14 and the local oscillator switch 15, and provides control instructions for each module; the Ka power supply unit 14 connects the power supply unit 8 and the single-chip microcomputer 13, and outputs a DC voltage to the Ka-band transceiver module 4 under the control of the single-chip microcomputer 13. In the embodiment, the Ku power supply unit 12 and the Ka power supply unit 14 are made of a commercially available dedicated power supply chip XC8128; the local oscillator switch 15 connects the power supply unit 8 and the single-chip microcomputer 13, and in the embodiment, the local oscillator switch 15 is made of a commercially available dedicated switch chip HGC127.

[0042] Figure 4 The electrical schematic diagram of the Ka-band transceiver module 4 of the present invention is shown in FIG. Figure 4 Connect the lines.

[0043] The Ka-band transceiver module 4 includes two branches for transmission and reception, and the transmission branch is mainly composed of a Ka transmission mixer circuit 28, a MEMS filter 29, a Ka gain amplifier 30, a Ka isolator 31, a Ka drive amplifier 32, a Ka power amplifier 33 and a Ka-band broadband integrated transition filter 34. Among them, the Ka transmission mixer circuit 28 mixes the input intermediate frequency signal with the transmission local oscillator signal output by the frequency source module 7 to obtain a Ka-band signal. The Ka transmission mixer circuit 28 of the embodiment is made of a commercially available dedicated mixer chip MWM011. The MEMS filter 29 mainly filters out the local oscillator leakage signal and combined spurious after mixing. The MEMS filter 29 of the embodiment is made of a commercially available dedicated filter chip SIMF29R4 / 3R8-2. The Ka gain amplifier 30 performs gain amplification on the Ka-band signal. The Ka gain amplifier 30 of the embodiment adopts The Ka isolator 31 is made of a commercially available dedicated amplifier chip HG118FC-4. The Ka isolator 31 mainly improves the standing wave of the transmitting branch and improves the isolation between circuits. The embodiment Ka isolator 31 is made of a commercially available dedicated isolator chip GW2543-63. The Ka driver amplifier 32 amplifies the Ka transmitting signal to a certain power to drive the final power amplifier. The embodiment Ka driver amplifier 32 is made of a commercially available dedicated amplifier chip HG118FC-3. The Ka power amplifier 33 performs the final power amplification on the Ka transmitting signal. The embodiment K a power amplifier 33 is made of a commercially available dedicated amplifier chip HG138FE, and the Ka-band broadband integrated transition filter 34 completes the conversion and transition transmission of the Ka transmission signal and filters the receiving band noise; the receiving branch is mainly composed of a Ka waveguide-microstrip transition 35, a Ka low-noise amplifier 36, a Ka low-noise amplifier 37, a MEMS filter 38 and a Ka receiving mixing circuit 39. The Ka waveguide-microstrip transition 35 completes the conversion of the signal transmission mode from waveguide to microstrip, and the low-noise amplifier 36 and the low-noise amplifier 37 are for the Ka-band The received signal is low-noise amplified and a certain gain is provided. The low-noise amplifier 36 and the low-noise amplifier 37 in the embodiment are made of the commercially available dedicated amplifier chip ILA-1723D. The MEMS filter 38 filters the image frequency interference of the receiving branch. The Ka receiving mixing circuit 39 mixes the amplified Ka receiving signal with the Ka receiving local oscillator signal output by the frequency source module 7 to obtain an intermediate frequency signal, which is output to the intermediate frequency unit 1. The Ka receiving mixing circuit 39 in the embodiment is made of the commercially available dedicated mixing chip NC17139C-1432.

[0044] The Ku-band integrated transition filter 22 adopts a light and thin integrated design, and its circuit structure includes a 50-ohm microstrip transmission line 40, a stepped impedance microstrip probe 41, a Ku non-standard waveguide transmission cavity 42, a Ku integrated non-standard waveguide conversion 43, a Ku integrated rejection filter 44 and a Ku integrated ultra-thin waveguide conversion junction 45. The 50-ohm microstrip transmission line 40 connects the Ku power amplifier 21 and the stepped impedance microstrip probe 41. The stepped impedance microstrip probe 41 receives the input signal of the 50-ohm microstrip transmission line 40, converts the microstrip transmission mode into the waveguide cavity transmission mode, and outputs it to the Ku non-standard waveguide transmission cavity 42. The Ku non-standard waveguide transmission cavity 42 is connected to the stepped impedance microstrip. The probe 41 and the Ku integrated non-standard waveguide conversion 43 form a small microstrip-waveguide conversion circuit with the stepped impedance microstrip probe 41. The Ku integrated non-standard waveguide conversion 43 connects the Ku non-standard waveguide transmission cavity 42 and the Ku integrated rejection filter 44 to realize the conversion from non-standard waveguide transmission to standard waveguide transmission. The Ku integrated rejection filter 44 connects the Ku integrated non-standard waveguide conversion 43 and the Ku integrated ultra-thin waveguide conversion junction 45 to complete the rejection filtering of the Ku-band transmission signal. The Ku integrated ultra-thin waveguide conversion junction 45 receives the input signal of the Ku integrated rejection filter 44 and converts the horizontal waveguide transmission of the transmission signal into the vertical waveguide transmission, which is convenient for system integration.

[0045] The Ka-band broadband integrated transition filter 34 is an integrated integrated circuit, and its circuit structure includes a 50-ohm microstrip transmission line 46, an impedance-transformed transition probe 47, a Ka non-standard waveguide transmission cavity 48, a Ka integrated non-standard waveguide conversion 49, a Ka integrated rejection filter 50, and a Ka integrated ultra-thin waveguide conversion junction 51. The 50-ohm microstrip transmission line 46 connects the Ka power amplifier 33 and the impedance-transformed transition probe 47. The impedance-transformed transition probe 47 receives the input signal of the 50-ohm microstrip transmission line 46, converts the microstrip transmission mode into the waveguide cavity transmission mode, and outputs it to the Ka non-standard waveguide transmission cavity 48. The Ka non-standard waveguide transmission cavity 48 is connected to the impedance-transformed transition probe The needle 47 and the Ka integrated non-standard waveguide conversion 49 form a small microstrip-waveguide conversion circuit with the impedance transformation transition probe 47. The Ka integrated non-standard waveguide conversion 49 connects the Ka non-standard waveguide transmission cavity 48 and the Ka integrated blocking filter 50 to realize the conversion from non-standard waveguide transmission to standard waveguide transmission. The Ka integrated blocking filter 50 connects the Ka integrated non-standard waveguide conversion 49 and the Ka integrated ultra-thin waveguide conversion junction 51 to complete the blocking filtering of the Ka-band transmission signal. The Ka integrated ultra-thin waveguide conversion junction 51 receives the input signal of the Ka integrated blocking filter 50, and at the same time converts the horizontal waveguide transmission of the Ka transmission signal into a vertical waveguide transmission, which is convenient for system integration.

[0046] The working principle of the present invention is as follows: when the Ku band is working, in the transmission link, the uplink intermediate frequency signal is input from the input port A to the intermediate frequency unit 1, and is filtered, attenuated, amplified, etc. in the intermediate frequency unit, and then switched to the Ku low-power working mode (Ka band circuit is closed) under the action of the ultra-low power modulation switch circuit 3 and the frequency source module 7, and enters the Ku band transceiver module 2, and after frequency conversion, filtering and amplification in the Ku band transceiver module 2, it is output to the Ku band duplexer 5, and finally from the common port of the Ku band duplexer 5. B output; in the receiving link, the Ku-band downlink receiving signal is input from the common port B of the Ku-band duplexer 5, and is input to the Ku-band transceiver module 2 through the Ku-band duplexer 5. Under the action of the ultra-low power consumption modulation switch circuit 3 and the frequency source module 7, the receiving enters the Ku working mode (the Ka-band circuit is closed). In the Ku-band transceiver module 2, the Ku-band receiving signal is low-noise amplified, mixed, and filtered, and then output to the intermediate frequency unit 1. In the intermediate frequency unit 1, the downlink intermediate frequency signal is output from port C after intermediate frequency amplification and filtering. When working in the Ka band, in the transmitting link, the uplink intermediate frequency signal is input from port A to the intermediate frequency unit 1, and is filtered, attenuated, amplified, etc. in the intermediate frequency unit, and then switched to the Ka low-power working mode (Ku band circuit is closed) under the action of the ultra-low power consumption modulation switch circuit 3 and the frequency source module 7, and enters the Ka band transceiver module 4, and is output to the Ka band duplexer 6 after frequency conversion, filtering and amplification in the Ka band transceiver module 4, and finally output from the common port D of the Ka band duplexer 6; in the receiving link, the Ka band downlink receiving signal is input from the common port D of the Ka band duplexer 6, and is input to the Ka band transceiver module 4 through the Ka band duplexer 6, and is received and enters the Ka working mode (Ku band circuit is closed) under the action of the ultra-low power consumption modulation switch circuit 3 and the frequency source module 7, and in the Ka band transceiver module 4, the Ka band receiving signal is low-noise amplified, mixed, filtered, and then output to the intermediate frequency unit 1, and the downlink intermediate frequency signal is output from port C after intermediate frequency amplification and filtering in the intermediate frequency unit 1.

[0047] The installation structure of the present invention is as follows: Figures 1 to 6 All circuit components are installed in a shielding box of 140 mm × 140 mm × 53 mm through a printed circuit board or micro-assembly process, and then the upper and lower covers are used to achieve structural sealing. Input port A, input port E and output port C are connected by SSMA-KFD94G type radio frequency sockets, port B and port D are non-standard circular waveguide interfaces, port B and port D are integrated with the box body, and input and output port F are connected by J30J-9ZKP sockets to assemble the present invention.

Claims

1. A low power consumption Ku / Ka dual-band transceiver, comprising an intermediate frequency unit (1), a Ku-band duplexer (5), a Ka-band duplexer (6) and a frequency source module (7), characterized in that: It also includes a Ku-band transceiver module (2), an ultra-low power consumption modulation switch circuit (3) and a Ka-band transceiver module (4); The intermediate frequency unit (1) filters, attenuates and amplifies the transmitted and received input intermediate frequency signals under the action of the ultra-low power consumption modulation switch circuit (3); the transmitted intermediate frequency signal is output to the Ku-band transceiver module (2) or the Ka-band transceiver module (4) through the switch selection; the received intermediate frequency signal is directly output; Under the action of the ultra-low power consumption modulation switch circuit (3), the Ku-band transceiver module (2) mixes the transmission intermediate frequency signal input by the intermediate frequency unit (1) with the transmission local oscillator signal output by the frequency source module (7) to obtain a Ku-band transmission signal, which is then filtered and power amplified and output to the Ku-band duplexer (5); on the other hand, the Ku-band reception signal input by the Ku-band duplexer (5) is mixed with the reception local oscillator signal output by the frequency source module (7) after low noise amplification to obtain a reception intermediate frequency signal, which is then filtered and output to the intermediate frequency unit (1); The ultra-low power consumption modulation switch circuit (3) receives power supply and control signals input from the outside, and after conversion and control, outputs low power consumption control instructions, which are respectively input to the intermediate frequency unit (1), the Ku-band transceiver module (2), the Ka-band transceiver module (4) and the frequency source module (7), and reports the returned status information; Under the action of the ultra-low power consumption modulation switch circuit (3), the Ka-band transceiver module (4) mixes the transmission intermediate frequency signal input by the intermediate frequency unit (1) with the transmission local oscillator signal output by the frequency source module (7) to obtain a Ka-band transmission signal, which is then filtered and power-amplified and output to the Ka-band duplexer (6); on the other hand, the Ka-band reception signal input by the Ka-band duplexer (6) is mixed with the reception local oscillator signal output by the frequency source module (7) after low-noise amplification to obtain a reception intermediate frequency signal, which is then filtered and output to the intermediate frequency unit (1); The Ku-band duplexer (5) filters the Ku-band transmission signal output by the Ku-band transceiver module (2) and then outputs it, and at the same time filters the input Ku-band reception signal and then outputs it to the Ku-band transceiver module (2); The Ka-band duplexer (6) filters the Ka-band transmission signal output by the Ka-band transceiver module (4) and then outputs it, and at the same time filters the input Ka-band reception signal and then outputs it to the Ka-band transceiver module (4); Under the action of the ultra-low power consumption modulation switch circuit (3), the frequency source module (7) divides the input 100 MHz reference source signal into two, and then outputs them into a variable transmission local oscillator signal and a reception local oscillator signal through a phase-locked loop. After filtering and amplifying the local oscillator signals, they are output to the Ku-band transceiver module (2) and the Ka-band transceiver module (4), respectively, and lock indication information is sent to the ultra-low power consumption modulation switch circuit (3) at the same time.

2. A low power consumption Ku / Ka dual-band transceiver according to claim 1, characterized in that: The Ku-band transceiver module (2) comprises two branches for transmission and reception; The Ku transmitting branch comprises a Ku transmitting mixing circuit (16), a hairpin filter a (17), a Ku gain amplifier (18), a hairpin filter b (19), a Ku driving amplifier (20), a Ku power amplifier (21) and a Ku frequency band integrated transition filter (22) connected in sequence; wherein the Ku transmitting mixing circuit (16) mixes the input intermediate frequency signal with the transmitting local oscillator signal output by the frequency source module (7) to obtain a Ku frequency band signal, the hairpin filter a (17) and the hairpin filter b (19) are used to filter out the local oscillator leakage signal and combined spurious after mixing, the Ku gain amplifier (18) performs gain amplification on the Ku frequency band signal, the Ku driving amplifier (20) amplifies the Ku transmitting signal to a certain power to drive the final power amplifier, the Ku power amplifier (21) performs final power amplification on the Ku transmitting signal, and the Ku frequency band integrated transition filter (22) completes the conversion transition transmission of the Ku transmitting signal and filters out the receiving band noise; The Ku receiving branch includes a Ku waveguide-microstrip transition (23), a Ku low noise amplifier a (24), a Ku low noise amplifier b (25), an image suppression filter (26) and a Ku receiving mixing circuit (27) connected in sequence; the Ku waveguide-microstrip transition (23) completes the conversion of the signal transmission mode from waveguide to microstrip, the low noise amplifier a (24) and the low noise amplifier b (25) perform low noise amplification on the Ku frequency band receiving signal and provide a certain gain, the image suppression filter (26) filters the image frequency interference of the receiving branch, and the Ku receiving mixing circuit (27) realizes mixing the amplified Ku receiving signal with the Ku receiving local oscillator signal output by the frequency source module (7) to obtain an intermediate frequency signal, which is output to the intermediate frequency unit (1).

3. The low power consumption Ku / Ka dual-band transceiver according to claim 1, characterized in that: The ultra-low power consumption modulation switch circuit (3) comprises a power supply unit (8), an intermediate frequency switch (9), a pulse modulation switch (10), a logic control (11), a Ku power supply unit (12), a single chip computer (13), a Ka power supply unit (14) and a local oscillator switch (15); the power supply unit (8) receives an external input, is connected to the intermediate frequency switch (9), the pulse modulation switch (10), the logic control (11), the Ku power supply unit (12), the single chip computer (13), the Ka power supply unit (14) and the local oscillator switch (15), and is used to provide a stable DC voltage; The intermediate frequency switch (9) is connected to the power supply unit (8) and the single chip microcomputer (13), and under the control of the single chip microcomputer (13), outputs a switch signal to the intermediate frequency unit (1); the pulse modulation switch (10) is connected to the power supply unit (8) and the logic control (11), and under the control of the logic control (11), outputs a synchronous modulation pulse signal to the Ku band transceiver module (2) and the Ka band transceiver module (4); the logic control (11) is connected to the power supply unit (8), the single chip microcomputer (13) and the external input pulse signal, and under the joint action of the external input pulse signal and the single chip microcomputer (13), outputs a control signal to the pulse modulation switch (10); the Ku power supply unit (12) connects the power supply unit (8) and the single-chip microcomputer (13), and outputs a direct current voltage to the Ku-band transceiver module (2) under the control of the single-chip microcomputer (13); the single-chip microcomputer (13) connects the power supply unit (8), the intermediate frequency switch (9), the logic control (11), the Ku power supply unit (12), the Ka power supply unit (14) and the local oscillator switch (15), and provides control instructions for each module; the Ka power supply unit (14) connects the power supply unit (8) and the single-chip microcomputer (13), and outputs a direct current voltage to the Ka-band transceiver module (4) under the control of the single-chip microcomputer (13); the local oscillator switch (15) connects the power supply unit (8) and the single-chip microcomputer (13).

4. The low power consumption Ku / Ka dual-band transceiver according to claim 1, characterized in that: The Ka-band transceiver module (4) comprises two branches for transmission and reception; The Ka transmitting branch includes a Ka transmitting mixing circuit (28), a MEMS filter a (29), a Ka gain amplifier (30), a Ka isolator (31), a Ka driving amplifier (32), a Ka power amplifier (33) and a Ka band broadband integrated transition filter (34) connected in sequence; wherein the Ka transmitting mixing circuit (28) mixes the input intermediate frequency signal with the transmitting local oscillator signal output by the frequency source module (7) to obtain a Ka band signal, the MEMS filter a (29) is used to filter out the local oscillator leakage signal and combined spurious after mixing, the Ka gain amplifier (30) performs gain amplification on the Ka band signal, the Ka isolator (31) is used to improve the standing wave of the transmitting branch and improve the isolation between circuits, the Ka driving amplifier (32) amplifies the Ka transmitting signal to a certain power to drive the final power amplifier, the Ka power amplifier (33) performs final power amplification on the Ka transmitting signal, and the Ka band broadband integrated transition filter (34) completes the conversion transition transmission of the Ka transmitting signal and filters the receiving band noise; The Ka receiving branch is mainly composed of a Ka waveguide-microstrip transition (35), a Ka low noise amplifier a (36), a Ka low noise amplifier b (37), a MEMS filter b (38) and a Ka receiving mixing circuit (39). The Ka waveguide-microstrip transition (35) completes the conversion of the signal transmission mode from waveguide to microstrip. The Ka low noise amplifier a (36) and the Ka low noise amplifier b (37) perform low noise amplification on the Ka frequency band receiving signal and provide a certain gain. The MEMS filter b (38) filters the image frequency interference of the receiving branch. The Ka receiving mixing circuit (39) mixes the amplified Ka receiving signal with the Ka receiving local oscillator signal output by the frequency source module (7) to obtain an intermediate frequency signal, which is output to the intermediate frequency unit (1).

5. The low power consumption Ku / Ka dual-band transceiver according to claim 2, characterized in that: The Ku-band integrated transition filter (22) adopts a light and thin integrated design, and its circuit structure includes a 50-ohm microstrip transmission line a (40), a step-impedance microstrip probe (41), a Ku non-standard waveguide transmission cavity (42), a Ku integrated non-standard waveguide conversion (43), a Ku integrated rejection filter (44) and a Ku integrated ultra-thin waveguide conversion junction (45) connected in sequence; the 50-ohm microstrip transmission line a (40) is connected to the Ku power amplifier (21) and the step-impedance microstrip probe (41); the step-impedance microstrip probe (41) receives the input signal of the 50-ohm microstrip transmission line a (40), converts the microstrip transmission mode into the waveguide cavity transmission mode, and outputs it to the Ku non-standard waveguide transmission cavity (42); the Ku non-standard waveguide transmission cavity (42) is connected to the Ku power amplifier (21) and the step-impedance microstrip probe (41); the step-impedance microstrip probe (41) receives the input signal of the 50-ohm microstrip transmission line a (40), converts the microstrip transmission mode into the waveguide cavity transmission mode, and outputs it to the Ku non-standard waveguide transmission cavity (42); The step impedance microstrip probe (41) and the Ku integrated non-standard waveguide conversion (43) form a small microstrip-waveguide conversion circuit with the step impedance microstrip probe (41); the Ku integrated non-standard waveguide conversion (43) connects the Ku non-standard waveguide transmission cavity (42) and the Ku integrated rejection filter (44) to realize the conversion from non-standard waveguide transmission to standard waveguide transmission; the Ku integrated rejection filter (44) connects the Ku integrated non-standard waveguide conversion (43) and the Ku integrated ultra-thin waveguide conversion junction (45) to complete the rejection filter of the Ku frequency band transmission signal; the Ku integrated ultra-thin waveguide conversion junction (45) receives the input signal of the Ku integrated rejection filter (44) and simultaneously converts the horizontal waveguide transmission of the transmission signal into the vertical waveguide transmission, which is convenient for system integration.

6. A low power consumption Ku / Ka dual-band transceiver according to claim 2, characterized in that: The Ka-band broadband integrated transition filter (34) is an integrated integrated circuit, and its circuit structure includes a 50-ohm microstrip transmission line a (46), an impedance-converting transition probe (47), a Ka non-standard waveguide transmission cavity (48), a Ka integrated non-standard waveguide conversion (49), a Ka integrated rejection filter (50), and a Ka integrated ultra-thin waveguide conversion junction (51); the 50-ohm microstrip transmission line a (46) is connected to a Ka power amplifier (33) and an impedance-converting transition probe (47); the impedance-converting transition probe (47) receives an input signal of the 50-ohm microstrip transmission line a (46), converts a microstrip transmission mode into a waveguide cavity transmission mode, and outputs the signal to the Ka non-standard waveguide transmission cavity (48); the Ka non-standard waveguide transmission cavity (48) is connected to an impedance-converting The transition probe (47) and the Ka integrated non-standard waveguide conversion (49) form a small microstrip-waveguide conversion circuit with the impedance transformation transition probe (47); the Ka integrated non-standard waveguide conversion (49) connects the Ka non-standard waveguide transmission cavity (48) and the Ka integrated blocking filter (50) to realize the conversion from non-standard waveguide transmission to standard waveguide transmission; the Ka integrated blocking filter (50) connects the Ka integrated non-standard waveguide conversion (49) and the Ka integrated ultra-thin waveguide conversion junction (51) to complete the blocking filter of the Ka frequency band transmission signal; the Ka integrated ultra-thin waveguide conversion junction (51) receives the input signal of the Ka integrated blocking filter (50) and simultaneously converts the horizontal waveguide transmission of the Ka transmission signal into the vertical waveguide transmission, which is convenient for system integration.

Images