Signal receiving and transmitting integrated circuit and signal receiving and transmitting equipment

Abstract

The embodiment of the invention discloses a signal receiving and transmitting integrated circuit and signal receiving and transmitting equipment. According to the technical scheme provided by the embodiment of the invention, the plurality of signal receiving modules are connected through the power division module, the power division module can distribute the received downlink signals to the plurality of signal receiving modules, and different signal receiving modules can be configured based on different downlink frequencies, so that the receiving requirements of various downlink frequencies can be met at the same time; the odd-even mode coupler is connected with the power division module and the signal sending module, the odd-even mode coupler can achieve coupling and separation of downlink signals and uplink signals in different directions, downlink signal receiving and uplink signal sending are achieved, signal sending and multi-downlink-frequency receiving can be met at the same time, and the signal receiving efficiency is improved. And the second receiving module can realize reverse isolation from the power dividing module to the receiving and mixing module, so that the isolation degree between the signal receiving modules is improved, the signal interference between the different signal receiving modules is effectively reduced, and the signal receiving and transmitting quality is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communication technology, and in particular to a signal transceiver integrated circuit and a signal transceiver device. Background Art

[0002] With the development of satellite communication technology, the requirements for the integration of satellite communication transceiver equipment are becoming higher and higher. There are two communication frequencies in the downlink communication of the satellite communication system: downlink beacon frequency and downlink service frequency. The satellite communication system performs downlink transmission of beacon information and service information based on the downlink beacon frequency and downlink service frequency.

[0003] Since the downlink beacon frequency and the downlink service frequency are far apart, two receivers are generally required to process the downlink signals of the two downlink frequencies respectively. The traditional transceiver consists of a receiver and a transmitter, which cannot meet the requirements of processing the downlink beacon frequency and the downlink service frequency in satellite communications. An additional receiver is required as a beacon receiver to process the beacon downlink signal, and the satellite communication transceiver is relatively large. Summary of the invention

[0004] The embodiments of the present application provide an integrated transceiver circuit and a signal transceiver device to solve the technical problem of the large size of satellite communication transceivers in related technologies, and can effectively reduce the size of satellite communication transceivers.

[0005] In a first aspect, an embodiment of the present application provides a transceiver integrated circuit, including a signal sending module, a plurality of signal receiving modules, a power division module, and an odd-even mode coupler, wherein:

[0006] The signal sending module includes a signal input port, a first transmitting module, a transmitting mixing module and a second transmitting module connected in sequence;

[0007] The signal receiving module comprises a signal output port, a first receiving module, a receiving mixing module and a second receiving module connected in sequence, the input ends of the plurality of the second receiving modules are respectively connected to an output end of the power division module, and the second receiving module is used to control the reverse isolation of the signal from the power division module to the receiving mixing module;

[0008] The output end of the second transmitting module is connected to the signal transmitting port of the odd-even mode coupler, and the input end of the power division module is connected to the signal receiving port of the odd-even mode coupler.

[0009] In a second aspect, an embodiment of the present application provides a signal transceiver device, comprising a management module and an integrated transceiver circuit as described in any one of the first aspects, wherein the management module is connected to the integrated transceiver circuit.

[0010] In the embodiment of the present application, a plurality of signal receiving modules are connected through a power division module, and the power division module can distribute the received downlink signal to the plurality of signal receiving modules, wherein different signal receiving modules can be configured based on different downlink frequencies, and can meet the reception requirements of multiple downlink frequencies at the same time, and different signal receiving modules can work individually or simultaneously to adapt to different satellite systems, wherein one of the signal receiving modules can be configured to receive satellite beacons to track the direction of the satellite, and the installation of other signal receiving modules can be eliminated, and the complexity of the system / engineering installation scheme can be reduced, and the power division module and the signal sending module are connected through an odd-even mode coupler, and the odd-even mode coupler can realize The coupling and separation of the downlink signal and the uplink signal in different directions realizes the sending of the downlink signal and the reception and uplink signal, which can simultaneously meet the signal sending and the reception of multiple downlink frequencies. There is no need to configure an additional receiver to meet the needs of multiple downlink frequency reception, which effectively reduces the size of the satellite communication transceiver. In addition, based on the reverse isolation characteristics of the second receiving module, it can effectively achieve high isolation between multiple signal receiving modules, reduce the signal leakage of the receiving mixing module to other signal receiving modules, improve the isolation between each signal receiving module, effectively reduce the signal interference between different signal receiving modules, and improve the signal reception and transmission quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a principle block diagram of a transceiver integrated circuit provided in an embodiment of the present application;

[0012] Figure 2 It is a circuit structure diagram of a signal receiving module provided in an embodiment of the present application;

[0013] Figure 3 It is a circuit structure diagram of a signal sending module provided in an embodiment of the present application;

[0014] Figure 4 It is a schematic diagram of the principle of a signal transceiver device provided in an embodiment of the present application.

[0015] Figure numerals: 1, signal transmission module; 11, signal input port; 12, first transmission module; 121, transmission attenuator; 122, first transmission amplifier; 123, first transmission filter; 124, second transmission filter; 13, transmission mixing module; 14, second transmission module; 141, third transmission filter; 142, second transmission amplifier; 143, fourth transmission filter; 144, transmission temperature compensation attenuator; 145, third transmission amplifier; 15, power amplifier; 2, Signal receiving module; 21, signal output port; 22, first receiving module; 221, receiving attenuator; 222, second receiving amplifier; 223, receiving temperature compensated attenuator; 224, second receiving filter; 23, receiving mixing module; 24, second receiving module; 241, first receiving amplifier; 242, fixed attenuator; 243, first receiving filter; 3, power division module; 4, odd-even mode coupler; 5, reference clock module; 6, low noise amplifier; 7, transmitting intermediate frequency detector. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the present application clearer, the specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. It is understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for the sake of ease of description, only the parts related to the present application are shown in the accompanying drawings, rather than all the contents.

[0017] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0018] Figure 1 A schematic diagram of a transceiver integrated circuit according to an embodiment of the present application is given. Figure 1 The integrated transceiver circuit includes a signal sending module 1, multiple signal receiving modules 2, a power division module 3 and an odd-even mode coupler 4 (OMT). Among them, multiple signal receiving modules 2 can be configured based on different reception requirements of downlink frequencies (for example, each signal receiving module 2 can independently configure functional information such as local oscillator frequency and gain). The output ends of the multiple signal receiving modules 2 are respectively connected to an input end of the power division module 3, and the power division module 3 can be used to distribute the downlink signal to the multiple signal receiving modules 2.

[0019] This solution is described by taking the setting of two signal receiving modules 2 as an example. Correspondingly, the power division module 3 is configured with two output terminals, and the two output terminals are respectively connected to the input terminal of one signal receiving module 2, so as to distribute the downlink signal to the two signal receiving modules 2. Optionally, the power division module 3 provided in this solution may include a Wilkinson power divider, and is implemented in the form of a microstrip line, so as to equally divide the downlink signal output by the odd-even mode coupler 4 into the paths corresponding to the two signal receiving modules 2.

[0020] The multiple signal receiving modules 2 provided in this solution can be configured based on different downlink frequencies, and each signal receiving module 2 can work individually or simultaneously to adapt to different satellite systems. For example, different signal receiving modules 2 can receive different satellite service signals respectively (to achieve two standards of satellite service adaptation for one product), or one of the signal receiving modules 2 can be used to receive satellite beacons to achieve the direction of the satellite, eliminating another signal receiving module 2 and reducing the complexity of the system / engineering installation solution.

[0021] The signal transmission module 1 provided in this solution includes a signal input port 11, a first transmission module 12 (transmission intermediate frequency module), a transmission mixing module 13 and a second transmission module 14 (transmission radio frequency module) connected in sequence. Among them, the signal input port 11 is connected to the input end of the first transmission module 12 as the input end of the signal transmission module 1, and the signal input port 11 can be used to input an uplink signal and send the uplink signal to the first transmission module 12. The output end of the first transmission module 12 is connected to the input end of the transmission mixing module 13, and the output end of the transmission mixing module 13 is connected to the input end of the second transmission module 14. Optionally, the output end of the second transmission module 14 can be used as the output end of the signal transmission module 1, and the output end of the second transmission module 14 can also be connected to other devices (such as a power amplifier), and the output end of the other device is used as the output end of the signal transmission module 1. In a possible embodiment, the signal sending module 1 provided by the present solution also includes a power amplifier 15 (high-power amplifier). The output end of the second transmitting module 14 is connected to the signal transmitting port of the odd-even mode coupler 4 through the power amplifier 15. The power amplifier 15 performs power amplification processing on the uplink signal, thereby effectively improving the signal transmission quality of the uplink signal.

[0022] Among them, the first transmitting module 12 can be used to amplify, filter and other processes on the received uplink signal, the transmitting mixing module 13 can be used to frequency convert the input uplink signal and output it, for example, converting the uplink signal from an intermediate frequency (such as an L or S band intermediate frequency) to a KA band (27.5-31GHz), and the second transmitting module 14 can be used to filter, amplify and other processes on the uplink signal received from the transmitting mixing module 13.

[0023] The signal receiving module 2 provided by the present solution includes a signal output port 21, a first receiving module 22, a receiving mixer module 23 and a second receiving module 24 connected in sequence, and the input ends of the plurality of second receiving modules 24 are respectively connected to an output end of the power division module 3, wherein the signal output port 21 is connected to the output end of the first receiving module 22 as the output end of the signal receiving module 2, the input end of the first receiving module 22 is connected to the output end of the receiving mixer module 23, and the input end of the receiving mixer module 23 is connected to the output end of the second receiving module 24. Among them, the second receiving module 24 can be used to filter, amplify, attenuate and other processes on the received downlink signal, and the receiving mixer module 23 can be used to frequency convert and output the received downlink signal, for example, according to the requirements of the downlink frequency, the frequency of the downlink signal is down-converted to a corresponding frequency (for example, an L or S band intermediate frequency). Among them, the receiving mixer modules 23 in different signal receiving modules 2 can correspond to different output frequencies. The first receiving module 22 can be used to attenuate, amplify, temperature compensate attenuate, filter and other processes on the downlink signal received from the receiving mixer module 23.

[0024] Among them, the second receiving module 24 provided in this solution can be used to control the reverse isolation of the signal from the power division module 3 to the receiving mixer module 23 (the unidirectional isolation of the control signal from the receiving mixer module 23 to the power division module 3), and the signal from the power division module 3 to the receiving mixer module 23 can pass normally. For example, after the downlink signal is sent from the second receiving module 24 to the receiving mixer for mixing processing, the downlink signal after mixing processing is sent from the output end to the first receiving module 22. At the same time, part of the local oscillator signal or the harmonic of the local oscillator signal will leak to the direction of the second receiving module 24. Due to the reverse isolation effect of the second receiving module 24, the leakage signal can be effectively reduced from being transmitted to other signal receiving modules 2, resulting in signal interference between signal receiving modules 2.

[0025] The even-odd mode coupler 4 provided in this solution is configured with a signal transmitting port, a signal receiving port and a common port, and the output end of the second transmitting module 14 is connected to the signal transmitting port of the even-odd mode coupler 4 (when the power amplifier 15 is configured, the output end of the second transmitting module 14 is connected to the signal transmitting port of the even-odd mode coupler 4 through the configured power amplifier 15). Optionally, the input end of the power division module 3 can be connected to the signal receiving port of the even-odd mode coupler 4, and can also be connected to the signal receiving port of the even-odd mode coupler 4 through the low noise amplifier 6. The downlink signal output by the even-odd mode coupler 4 can be amplified by the low noise amplifier 6, which can effectively reduce the noise coefficient of the entire receiving system and improve the quality of the received signal.

[0026] Among them, the channel from the signal transmitting port of the odd-even mode coupler 4 to the common port is an uplink channel, which is used to transmit the uplink signal, and the channel from the common port of the odd-even mode coupler 4 to the signal receiving port is a downlink channel, which is used to transmit the downlink signal. The signal transmitting port of the odd-even mode coupler 4 can receive the uplink signal that needs to be sent to the outside (for example, the uplink signal enters the waveguide from a microstrip line to a waveguide conversion component), and outputs it from the common port to achieve the output of the uplink signal. The common port of the odd-even mode coupler 4 can receive the downlink signal and output it from the signal receiving port (for example, the downlink signal is transferred from the waveguide transmission to the PCB microstrip line transmission by the microstrip to waveguide structure). Optionally, the signal receiving port of the odd-even mode coupler 4 can be integrated or connected with a low-pass filter to suppress the RF output signal of the signal sending module 1, so as to prevent the output signal or noise of the signal sending module 1 from affecting the signal quality of the signal receiving module 2. The common port of the odd-even mode coupler 4 can be used as an external interface of the integrated transceiver circuit (for example, an external waveguide interface, which can be connected to the antenna component or connected to the antenna component after the conversion structure).

[0027] Optionally, when using the transceiver integrated circuit, the transceiver integrated circuit or the transceiver integrated device equipped with the transceiver integrated circuit can be connected to the terminal device, for example, the signal uplink port of the terminal device is connected to the input end of the signal sending module 1, and the multiple signal downlink ports of the terminal device are respectively connected to a signal receiving module 2. When it is necessary to send an uplink signal, the terminal device sends the uplink signal through the uplink signal port, and the uplink signal is amplified, filtered, and processed in the first transmitting module 12, and then sent to the second transmitting module 14 after mixing in the transmitting mixing module 13 for filtering, amplification, and other processing, and then sent to the odd-even mode coupler 4 (when the power amplifier 15 is configured, the uplink signal is filtered, amplified, and processed in the second transmitting module 14, and then further amplified in the power amplifier 15 before being sent to the odd-even mode coupler 4), and sent out through the common port of the odd-even mode coupler 4 to achieve the output of the uplink signal. At the same time, the downlink signal is orthogonally separated by the odd-even mode coupler 4 and sent to the power division module 3, and the power division module 3 distributes the downlink signal to the corresponding signal receiving module 2. The second transmitting module 14 in the signal receiving module 2 filters, amplifies and processes the downlink signal, sends it to the receiving mixing module 23 for mixing, then sends it to the first transmitting module 12 for amplification, filtering and other processing, and then sends it to the signal downlink port of the terminal device to realize the reception of the downlink signal.

[0028] It needs to be explained that, since the local oscillator frequencies of multiple signal receiving modules 2 are similar, there is a problem of mutual interference. After integrating multiple signal receiving modules 2, it is necessary to solve the problem of mutual interference between the local oscillators of multiple receiving channels. This solution realizes the reverse isolation of the signal from the power division module 3 to the receiving mixing module 23 by adding an isolation device (such as the second receiving module 24) between the power division module 3 and the receiving mixing module 23, and increases the isolation between multiple receiving channels. The downlink signal output by the odd-even mode coupler 4 is amplified by the low-noise amplifier 6 and then enters the power division module 3 for downlink signal multi-channel distribution, which can make the noise coefficients of multiple signal receiving modules 2 reach the level of a single receiving channel, which can meet the requirements of the service port + beacon port and meet the demodulation equipment of different frequencies. In addition, in terms of device layout, the relevant circuits of multiple signal receiving modules 2 can be arranged at a distance, and the corresponding circuits can be covered with a metal shielding cover. Multiple signal receiving modules 2 can also be designed with independent cavity spaces to achieve better electromagnetic shielding effect. In this solution, there is no redundant connection between the signal sending module 1 and the signal receiving module 2 except for the necessary direct current and control signals. In addition, a metal isolation wall can be set between the signal sending module 1 and the signal receiving module 2, and the signal sending module 1 and the signal receiving module 2 can be respectively installed in mutually isolated spaces to achieve isolation between the signal sending module 1 and the signal receiving module 2, reduce signal crosstalk between the signal sending module 1 and the signal receiving module 2, and provide sufficient transmission and reception isolation.

[0029] In one possible embodiment, Figure 2 A circuit structure diagram of a signal receiving module 2 is provided, and the second receiving module 24 provided in this scheme includes a first receiving amplifier 241, wherein the input end of the first receiving amplifier 241 is connected to the output end of the power division module 3, and the output end of the first receiving amplifier 241 is connected to the receiving mixing module 23.

[0030] This solution realizes reverse isolation of the signal from the power division module 3 to the receiving mixer module 23 through the reverse isolation characteristic of the first receiving amplifier 241, which can effectively reduce the leakage of the signal (local oscillator signal or harmonics of the local oscillator signal) of the receiving mixer module 23 to other signal receiving modules 2. Optionally, the gain of the first receiving amplifier 241 can be set to a smaller value, and the reverse isolation capability of the first receiving amplifier 241 can be used to isolate the local oscillator signal of the receiving mixer module 23, reduce the leakage of the local oscillator signal of the signal receiving module 2 to other signal receiving modules 2 to cause signal interference, and improve the signal transmission and reception quality.

[0031] In a possible embodiment, the second receiving module 24 provided by the present solution further includes a fixed attenuator 242 and / or a first receiving filter 243 (bandpass filter), and the fixed attenuator 242 and / or the first receiving filter 243 are connected in series with the first receiving amplifier 241. For example, the input end of the first receiving filter 243 is connected to an output end of the power division module 3, the initial number section of the first post-section filter is connected to the input end of the first receiving amplifier 241, the output end of the first receiving amplifier 241 is connected to the first connection end of the fixed attenuator 242, and the second connection end of the fixed attenuator 242 is connected to the input end of the receiving mixing module 23. Among them, the fixed attenuator 242 can be used to reduce the signal amplitude of the downlink signal entering the receiving mixing module 23, reduce the situation where the input signal of the receiving mixing module 23 is too large and causes saturation, and effectively improve the signal reception quality. The first receiving filter 243 can be used to suppress out-of-band spurious interference signals in the downlink signal, effectively improving the signal reception quality. The downlink signal output from the power division module 3 enters the receiving mixing module 23 after passing through the first receiving amplifier 241 and the fixed attenuator 242. The reverse isolation characteristic of the first receiving amplifier 241 can effectively prevent the local oscillator signal leaked from the receiving mixing module 23 from entering other signal receiving modules 2, thereby reducing interference between different receiving channels.

[0032] In a possible embodiment, the first receiving module 22 provided by the present solution includes a combination of one or more of a receiving attenuator 221 (receiving gain adjustment attenuator), a second receiving amplifier 222, a receiving temperature-compensated attenuator 223, and a second receiving filter 224 (intermediate frequency filter), and the receiving attenuator 221, the second receiving amplifier 222, the receiving temperature-compensated attenuator 223, and the second receiving filter 224 are connected in series. For example, the first connection end of the receiving attenuator 221 is connected to the output end of the receiving mixing module 23, the second connection end of the receiving attenuator 221 is connected to the input end of the second receiving amplifier 222, the output end of the second receiving amplifier 222 is connected to the first connection end of the receiving temperature-compensated attenuator 223, the second connection end of the receiving temperature-compensated attenuator 223 is connected to the input end of the second receiving filter 224, and the output end of the second receiving filter 224 is connected to the signal output port 21. Among them, the receiving attenuator 221 can be used to adjust the gain of the signal receiving module 2 for the downlink signal, the receiving temperature compensation attenuator 223 can be used to compensate for the change in gain when the temperature changes in the signal receiving module 2, the second receiving amplifier 222 can be used to amplify the downlink signal, and the second receiving filter 224 can be used to filter out the out-of-band (outside the intermediate frequency band) signal. By performing one or more combinations of signal gain, signal amplification, temperature compensation, and filtering on the downlink signal, the signal reception quality is effectively improved.

[0033] In one embodiment, the integrated transceiver circuit provided by the present solution further includes a low noise amplifier 6, wherein the input end of the power division module 3 is connected to the signal receiving port of the odd-even mode coupler 4 through the low noise amplifier 6, that is, the output end of the low noise amplifier 6 is connected to the input end of the power division module 3, and the input end of the low noise amplifier 6 is connected to the downlink signal port of the odd-even mode coupler 4. The present solution can amplify the downlink signal output by the odd-even mode coupler 4 through the low noise amplifier 6, which can effectively reduce the noise coefficient of the entire receiving system and improve the quality of the received signal.

[0034] In one embodiment, the receiving mixer module 23 provided by the present solution includes a receiving mixer and a receiving phase-locked loop (i.e., a local oscillator phase-locked loop, which can be used as a frequency source of the receiving mixer module 23), wherein the input port (radio frequency (RF) port) of the receiving mixer is connected to the output end of the second receiving module 24, the output port (intermediate frequency (IF) port) of the receiving mixer is connected to the input end of the first receiving module 22, and the oscillator port (LO port) of the receiving mixer is connected to the output end of the receiving phase-locked loop. The phase-locked loop provided by the present solution includes functional elements and circuits such as a voltage-controlled oscillator (VCO), a frequency detector and a phase detector, a loop filter, a bandpass filter, a 2-timer, and a signal amplifier, and the output frequency of the phase-locked loop can be configured by software control. The mixer can mix the signal at the input end based on the frequency provided by the phase-locked loop and output the mixed signal.

[0035] In one possible embodiment, Figure 3 A circuit structure diagram of a signal transmission module 1 is provided, and the first transmission module 12 provided in this scheme includes a combination of one or more of a first transmission filter 123 (intermediate frequency filter), a transmission attenuator 121 (transmission gain adjustment attenuator), a first transmission amplifier 122 (intermediate frequency amplifier) ​​and a second transmission filter 124 (intermediate frequency filter), and the first transmission filter 123, the transmission attenuator 121, the first transmission amplifier 122 and the second transmission filter 124 are connected in series. For example, the input end of the second transmission filter 124 is connected to the signal input port 11, the output end of the second transmission filter 124 is connected to the first connection end of the transmission attenuator 121, the second connection end of the transmission attenuator 121 is connected to the input end of the first transmission amplifier 122, the output end of the first transmission amplifier 122 is connected to the input end of the first transmission filter 123, and the output end of the first transmission filter 123 is connected to the input end of the transmission mixing module 13. The first transmit filter 123 and the second transmit filter 124 can be used to filter the uplink signal, the first transmit amplifier 122 can be used to amplify the uplink signal, and the transmit attenuator 121 can be used to gain adjust the uplink signal. This solution can effectively improve the signal transmission quality by filtering, amplifying, gain adjusting, etc. the uplink signal.

[0036] In one embodiment, the transmit mixing module 13 provided by the present solution includes a transmit mixer and a transmit phase-locked loop (i.e., a local oscillator phase-locked loop, which can be used as a frequency source of the transmit mixing module 13), wherein the input port (intermediate frequency (IF) port) of the transmit mixer is connected to the output end of the first transmit module 12, the output port (radio frequency (RF) port) of the transmit mixer is connected to the input end of the second transmit module 14, and the oscillator port (LO port) of the transmit mixer is connected to the output end of the transmit phase-locked loop.

[0037] In a possible embodiment, the second transmitting module 14 provided by the present solution includes a combination of one or more of a third transmitting filter 141 (microwave filter), a second transmitting amplifier 142 (microwave amplifier), a fourth transmitting filter 143 (microwave filter), a transmitting temperature compensating attenuator 144 and a third transmitting amplifier 145 (driving amplifier), and the third transmitting filter 141, the second transmitting amplifier 142, the fourth transmitting filter 143, the transmitting temperature compensating attenuator 144 and the third transmitting amplifier 145 are connected in series. For example, the third transmitting filter 141 and the fourth transmitting filter 143 can be used to filter the uplink signal, the second transmitting amplifier 142 and the third transmitting amplifier 145 can be used to amplify the uplink signal, and the transmitting temperature compensating attenuator 144 can be used to compensate for the change in gain when the temperature changes in the signal transmitting module 1. The present solution can effectively improve the signal transmission quality by filtering, amplifying, temperature compensating and other processes on the uplink signal.

[0038] In a possible embodiment, the signal transmission module 1 provided by the present solution further includes a power amplifier 15 (high power amplifier), and the output end of the second transmission module 14 is connected to the signal transmission port of the odd-even mode coupler 4 through the power amplifier 15. Specifically, the output end of the third transmission amplifier 145 is connected to the input end of the power amplifier 15, and the output end of the power amplifier 15 can be connected to the signal transmission port of the odd-even mode coupler 4 through a microstrip line-to-waveguide structure. The present solution performs power amplification processing on the uplink signal through the power amplifier 15, thereby effectively improving the signal transmission quality of the uplink signal.

[0039] In one embodiment, the integrated transceiver circuit provided by the present solution also includes a reference clock module 5, wherein the input end of the reference clock module 5 is connected to the signal input port 11, and the output end of the reference clock module 5 is connected to the transmitting mixing module 13 and the receiving mixing module 23. Specifically, the output end of the reference clock module 5 is connected to the transmitting phase-locked loop in the transmitting mixing module 13 and the receiving phase-locked loop in the receiving mixing module 23.

[0040] Optionally, the terminal device may send a transmission mixed signal mixed with an uplink signal and a clock signal to the signal sending module 1. The reference clock module 5 provided in this solution may be used to separate a reference clock signal from the transmission mixed signal sent from the signal input port 11, and provide a reference clock signal to the transmission mixing module 13 and the reception mixing module 23, specifically, to the transmission phase-locked loop in the transmission mixing module 13 and the reception phase-locked loop in the reception mixing module 23. The separated reference clock signal may be used as a reference clock for the transmission phase-locked loop of the transmission mixing module 13 and the reception phase-locked loop in the reception mixing module 23, so as to realize accurate signal mixing processing.

[0041] Optionally, the reference clock module 5 may include a high-pass filter and a low-pass filter, the signal input port 11 is respectively connected to the input ends of the high-pass filter and the low-pass filter, the output end of the high-pass filter can be connected to the first transmitting module 12, the output end of the low-pass filter can be connected to the transmitting mixing module 13 and the receiving mixing module 23, the uplink signal (transmitting intermediate frequency signal) in the transmitting mixed signal passes through the high-pass filter and is sent to the first transmitting module 12, and the reference clock signal in the transmitting mixed signal passes through the low-pass filter and is sent to the transmitting mixing module 13 and the receiving mixing module 23.

[0042] In one embodiment, the integrated transceiver circuit provided by the present solution also includes a transmitting intermediate frequency detector 7, which is connected to the output end of the second transmitting filter 124. The transmitting intermediate frequency detector 7 can be used to perform amplitude detection on the input uplink signal. When the amplitude of the uplink signal reaches a set value, preset measures can be taken to protect the power amplifier from damage, thereby ensuring circuit safety.

[0043] As described above, multiple signal receiving modules 2 are connected through the power division module 3, and the power division module 3 can distribute the received downlink signal to multiple signal receiving modules 2, wherein different signal receiving modules 2 can be configured based on different downlink frequencies, and can meet the reception requirements of multiple downlink frequencies at the same time. Different signal receiving modules 2 can work individually or simultaneously to adapt to different satellite systems, and the power division module 3 and the signal sending module 1 are connected through the odd-even mode coupler 4, and the odd-even mode coupler 4 can realize the coupling and separation of the downlink signal and the uplink signal in different directions, realize the transmission of the downlink signal and the reception and the uplink signal, and can meet the signal transmission and the reception of multiple downlink frequencies at the same time. There is no need to configure an additional receiver to meet the requirements of multiple downlink frequency reception, which effectively reduces the volume of the satellite communication transceiver, and based on the reverse isolation characteristics of the second receiving module 2, it can effectively achieve high isolation between multiple signal receiving modules 2, can effectively reduce the situation where the signal of the receiving mixing module 23 leaks to other signal receiving modules 2, improve the isolation between each signal receiving module, effectively reduce the signal interference between different signal receiving modules 2, and improve the signal reception and transmission quality.

[0044] Figure 4 A schematic diagram of the principle of a signal transceiver device provided in an embodiment of the present application is given. Figure 4 The signal transceiver device includes a management module and an integrated transceiver circuit as provided in any of the above embodiments, wherein the management module is connected to the integrated transceiver circuit, the management module may include a power management circuit and a main control circuit, and the management module may supply power and control each component module in the integrated transceiver circuit.

[0045] Optionally, the signal transceiver device may also include a power management interface, which is connected to the management module. The power management interface can be used to connect the power interface and management interface of the terminal device. The terminal device can power the signal transceiver device through the power management interface, and control the signal transceiver device.

[0046] When using the signal transceiver device, the power management interface in the signal transceiver device can be connected to the terminal device, and the signal uplink port of the terminal device is connected to the input end of the signal sending module in the signal transceiver device, and the multiple signal downlink ports of the terminal device are respectively connected to a signal receiving module in the signal transceiver device. The common port of the odd-even mode coupler in the signal transceiver device can be used as an external interface in the signal transceiver device to connect the antenna.

[0047] When it is necessary to send an uplink signal, the terminal device sends the uplink signal through the uplink signal port. After the uplink signal is amplified, filtered, and processed in the first transmitting module of the signal transceiver device, it is sent to the second transmitting module after mixing in the transmitting mixer module for filtering, amplification, and other processing, and then sent to the odd-even mode coupler. After coupling processing by the odd-even mode coupler, it is sent outward to achieve the output of the uplink signal. At the same time, the downlink signal is orthogonally separated by the odd-even mode coupler of the signal transceiver device and sent to the power division module. The power division module distributes the downlink signal to the corresponding signal receiving module. After the second transmitting module in the signal receiving module filters and amplifies the downlink signal, it is sent to the receiving mixer module for mixing processing, and then sent to the first transmitting module for amplification, filtering, and other processing, and then sent to the signal downlink port of the terminal device to achieve the reception of the downlink signal.

[0048] Optionally, the signal transceiver device may also include a temperature control module, which may include a controller, a temperature measurement circuit and a fan. The controller can be used to detect the temperature of each amplifier through the temperature measurement circuit, and control the fan speed according to the temperature detection result. The temperature of the amplifier is controlled by the fan to ensure the normal operation of the signal transceiver device.

[0049] As described above, the signal transceiver device can connect multiple signal receiving modules through a power division module, and the power division module can distribute the received downlink signal to multiple signal receiving modules, wherein different signal receiving modules can be configured based on different downlink frequencies, and can meet the reception requirements of multiple downlink frequencies at the same time. Different signal receiving modules can work individually or simultaneously to adapt to different satellite systems, and the power division module and the signal sending module are connected through an odd-even mode coupler, and the odd-even mode coupler can realize the coupling and separation of the downlink signal and the uplink signal in different directions, realize the transmission of the downlink signal and the reception and uplink signal, and can meet the signal transmission and the reception of multiple downlink frequencies at the same time. There is no need to configure an additional receiver to meet the requirements of multiple downlink frequency reception, which effectively reduces the volume of the satellite communication transceiver, and based on the reverse isolation characteristics of the second receiving module, it can effectively achieve high isolation between multiple signal receiving modules, effectively reduce the situation where the signal of the receiving mixing module leaks to other signal receiving modules, improve the isolation between each signal receiving module, effectively reduce the signal interference between different signal receiving modules, and improve the signal reception and transmission quality. The integrated design of the signal transceiver can effectively reduce the size of the transceiver components in the satellite communication system. The integration of multiple receiving channels is more conducive to improving the system integration. The multi-channel receiving output can be used as a beacon and service reception respectively, and can also be matched with different demodulation equipment to enrich the use scenarios of the signal transceiver equipment.

[0050] The above are only preferred embodiments of the present application and the technical principles used. The present application is not limited to the specific embodiments provided herein, and various obvious changes, readjustments and substitutions that can be made by those skilled in the art will not deviate from the scope of protection of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the claims.

Claims

1. A transceiver integrated circuit, characterized in that: It includes a signal sending module, multiple signal receiving modules, a power division module and an odd-even mode coupler, wherein: The signal sending module includes a signal input port, a first transmitting module, a transmitting mixing module and a second transmitting module connected in sequence; The signal receiving module comprises a signal output port, a first receiving module, a receiving mixing module and a second receiving module connected in sequence, the input ends of the plurality of the second receiving modules are respectively connected to an output end of the power division module, and the second receiving module is used to control the reverse isolation of the signal from the power division module to the receiving mixing module; The output end of the second transmitting module is connected to the signal transmitting port of the odd-even mode coupler, and the input end of the power division module is connected to the signal receiving port of the odd-even mode coupler.

2. The transceiver integrated circuit according to claim 1, characterized in that: The second receiving module includes a first receiving amplifier, an input end of the first receiving amplifier is connected to an output end of the power division module, and an output end of the first receiving amplifier is connected to the receiving mixing module.

3. The transceiver integrated circuit according to claim 2, characterized in that: The second receiving module further includes a fixed attenuator and / or a first receiving filter.

4. The integrated transceiver circuit according to claim 1, characterized in that: The first receiving module includes a combination of one or more of a receiving attenuator, a second receiving amplifier, a receiving temperature-compensated attenuator, and a second receiving filter.

5. The transceiver integrated circuit according to claim 1, characterized in that: It also includes a low noise amplifier, and the input end of the power division module is connected to the signal receiving port of the odd-even mode coupler through the low noise amplifier.

6. The transceiver integrated circuit according to claim 1, characterized in that: The first transmitting module includes a combination of one or more of a transmitting attenuator, a first transmitting amplifier and a first transmitting filter.

7. The integrated transceiver circuit according to claim 1, characterized in that: The second transmitting module includes a combination of one or more of a third transmitting filter, a second transmitting amplifier, a fourth transmitting filter, a transmitting temperature-compensated attenuator and a third transmitting amplifier.

8. The integrated transceiver circuit according to claim 1, characterized in that: The signal sending module also includes a power amplifier, and the output end of the second transmitting module is connected to the signal transmitting port of the odd-even mode coupler through the power amplifier.

9. The integrated transceiver circuit according to claim 1, characterized in that: It also includes a reference clock module, the input end of the reference clock module is connected to the signal input port, and the output end of the reference clock module is connected to the transmitting mixing module and the receiving mixing module; The reference clock module is used to separate a reference clock signal from the transmit mixed signal sent from the signal input port, and provide the reference clock signal to the transmit mixing module and the receive mixing module.

10. A signal transceiver device, characterized in that: It comprises a management module and the transceiver integrated circuit as claimed in any one of claims 1 to 9, wherein the management module is connected to the transceiver integrated circuit.

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