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

Abstract

The embodiment of the utility model 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] Embodiments of the present application relate to the field of communication technologies, and in particular, to a transceiver integrated circuit and a signal transceiver device. Background Art

[0002] With the development of satellite communication technologies, the integration requirements for satellite communication transceiver devices are also becoming increasingly high. In the downlink communication of a satellite communication system, there are two communication frequencies, namely the downlink beacon frequency and the downlink service frequency. The satellite communication system performs downlink transmission of beacon information and service information based on the downlink beacon frequency and the downlink service frequency.

[0003] Since the interval between the downlink beacon frequency and the downlink service frequency is relatively far, generally two receivers are required to separately process the downlink signals of the two downlink frequencies. However, a traditional transceiver consists of one receiver plus one transmitter, which cannot meet the requirements for processing the downlink beacon frequency and the downlink service frequency in satellite communication. An additional receiver needs to be added as a beacon receiver to process the beacon downlink signal, resulting in a relatively large volume of the satellite communication transceiver. Utility Model Content

[0004] Embodiments of the present application provide a transceiver integrated circuit and a signal transceiver device to solve the technical problem of the relatively large volume of the satellite communication transceiver in related technologies, and can effectively reduce the volume of the satellite communication transceiver.

[0005] In a first aspect, embodiments of the present application provide a transceiver integrated circuit, including a signal transmission module, multiple signal reception modules, a power splitter module, and an even-odd mode coupler, where:

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

[0007] The signal reception module includes a signal output port, a first reception module, a reception mixing module, and a second reception module connected in sequence. Input ends of multiple second reception modules are respectively connected to an output end of the power splitter module, and the second reception module is used to control the reverse isolation of signals from the power splitter module to the reception mixing module;

[0008] An output end of the second transmission module is connected to a signal transmission port of the even-odd mode coupler, and an input end of the power splitter module is connected to a signal reception port of the even-odd mode coupler.

[0009] In a second aspect, embodiments of the present application provide a signal transceiver device, including a management module and the transceiver integrated circuit according to any item in the first aspect, and the management module is connected to the transceiver integrated circuit.

[0010] In the embodiment of the present application, a power splitter module is connected to multiple signal receiving modules. The power splitter module can distribute the received downlink signals to multiple signal receiving modules. Different signal receiving modules can be configured based on different downlink frequencies, which can simultaneously meet the reception requirements of multiple downlink frequencies. Different signal receiving modules can work independently or simultaneously to adapt to different satellite systems. One signal receiving module can be configured to receive satellite beacons to track the satellite direction, which can eliminate the installation of other signal receiving modules and reduce the complexity of the system / engineering installation plan. And a power splitter module and a signal transmitting module are connected through an even-odd mode coupler. The even-odd mode coupler can realize the coupling and separation of downlink signals and uplink signals in different directions, realize the reception of downlink signals and the transmission of uplink signals, can simultaneously meet the requirements of signal transmission and reception of multiple downlink frequencies, and does not require additional configuration of a receiver to meet the requirements of receiving multiple downlink frequencies, effectively reducing the volume of the satellite communication transceiver. And based on the reverse isolation characteristics of the second receiving module, high isolation between multiple signal receiving modules can be effectively achieved, reducing the signal leakage of the receiving mixer module to other signal receiving modules, improving the isolation between each signal receiving module, effectively reducing the signal interference between different signal receiving modules, and improving the signal transceiver quality. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0013] Figure 3 is a schematic circuit structure diagram of a signal transmitting module provided by an embodiment of the present application;

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

[0015] Reference 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 reception module; 21, signal output port; 22, first reception module; 221, reception attenuator; 222, second reception amplifier; 223, reception temperature compensation attenuator; 224, second reception filter; 23, reception mixing module; 24, second reception module; 241, first reception amplifier; 242, fixed attenuator; 243, first reception filter; 3, power splitter module; 4, even-odd mode coupler; 5, reference clock module; 6, low-noise amplifier; 7, transmission intermediate frequency detector. Detailed implementation manners

[0016] In order to make the objectives, technical solutions and advantages of the present application clearer, the following further describes the specific embodiments of the present application in detail with reference to the accompanying drawings. It can be understood that the specific embodiments described herein are only used to explain the present application, rather than limiting the present application. Additionally, it should be noted that for the sake of description, only parts related to the present application are shown in the accompanying drawings rather than all the content.

[0017] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the terms "connected", "coupled" and "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal connection or interaction relationship of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

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

[0019] This solution is described by taking the setting of two signal receiving modules 2 as an example. Correspondingly, the power splitter module 3 is configured with two output terminals, and the two output terminals are respectively connected to the input terminals of one signal receiving module 2, for distributing the downlink signal to the two signal receiving modules 2. Optionally, the power splitter module 3 provided in this solution may include a Wilkinson power divider and is implemented in the form of a microstrip line, which can equally divide the downlink signal output by the even-odd 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 independently or simultaneously to adapt to different satellite systems. For example, different signal receiving modules 2 can respectively receive different satellite service signals (to implement a product that adapts to two systems of satellite services), or one of the signal receiving modules 2 can be used to receive satellite beacons to determine the satellite direction, eliminating the other signal receiving module 2 and reducing the complexity of the system / engineering installation solution.

[0021] The signal transmitting module 1 provided in this solution includes a signal input port 11, a first transmitting module 12 (transmitting intermediate frequency module), a transmitting mixing module 13, and a second transmitting module 14 (transmitting radio frequency module) connected in sequence. Among them, the signal input port 11 serves as the input terminal of the signal transmitting module 1 and is connected to the input terminal of the first transmitting module 12. The signal input port 11 can be used to input an uplink signal and send the uplink signal to the first transmitting module 12. The output terminal of the first transmitting module 12 is connected to the input terminal of the transmitting mixing module 13, and the output terminal of the transmitting mixing module 13 is connected to the input terminal of the second transmitting module 14. Optionally, the output terminal of the second transmitting module 14 can serve as the output terminal of the signal transmitting module 1, or the output terminal of the second transmitting module 14 can also be connected to other devices (such as a power amplifier), and the output terminal of the other device serves as the output terminal of the signal transmitting module 1. In a possible embodiment, the signal transmitting module 1 provided in this solution further includes a power amplifier 15 (high-power power amplifier). The output terminal of the second transmitting module 14 is connected to the signal transmitting port of the even-odd mode coupler 4 through the power amplifier 15, and the power amplifier 15 performs power amplification processing on the uplink signal, 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 perform frequency conversion processing on the input uplink signal and output it. For example, the uplink signal is up-converted from an intermediate frequency (such as L or S band intermediate frequency) to the KA band (27.5 - 31 GHz). 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 this solution includes a signal output port 21, a first receiving module 22, a receiving mixer module 23, and a second receiving module 24 that are connected in sequence. The input ends of multiple second receiving modules 24 are respectively connected to an output end of a power splitter module 3. Among them, the signal output port 21 serves as the output end of the signal receiving module 2 and is connected to the output end of the first receiving module 22. The input end of the first receiving module 22 is connected to the output end of the receiving mixer module 23. 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 perform processing such as filtering, amplification, and attenuation on the received downlink signal. The receiving mixer module 23 can be used to perform frequency conversion processing on the received downlink signal and output it. For example, according to the requirements of the downlink frequency, the frequency of the downlink signal is down-converted to a corresponding frequency (such as the intermediate frequency in the L or S band). 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 perform processing such as attenuation, amplification, temperature compensation attenuation, and filtering on the downlink signal received from the receiving mixer module 23.

[0024] Among them, the second receiving module 24 provided by this solution can be used to control the reverse isolation of the signal from the power splitter module 3 to the receiving mixer module 23 (control the one-way isolation of the signal from the receiving mixer module 23 to the power splitter module 3), and the signal from the power splitter module 3 to the receiving mixer module 23 can pass through 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, there will be some local oscillator signals or harmonics of the local oscillator signal leaking in the direction of the second receiving module 24. Due to the reverse isolation effect of the second receiving module 24, the leaked signals can be effectively reduced from being transmitted to other signal receiving modules 2, resulting in signal interference between the signal receiving modules 2.

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

[0026] Among them, the channel from the signal transmitting port to the common port of the even-odd mode coupler 4 is the upstream channel for transmitting upstream signals, and the channel from the common port of the even-odd mode coupler 4 to the signal receiving port is the downstream channel for transmitting downstream signals. The signal transmitting port of the even-odd mode coupler 4 can receive the upstream signals to be sent out (for example, the upstream signals enter the waveguide through a microstrip-to-waveguide conversion component), and output them from the common port to achieve the output of the upstream signals. The common port of the even-odd mode coupler 4 can receive the downstream signals and output them from the signal receiving port (for example, the downstream signals are transmitted from the waveguide to the PCB microstrip line through a microstrip-to-waveguide structure). Optionally, a low-pass filter can be integrated or connected to the signal receiving port of the even-odd mode coupler 4 to suppress the radio frequency output signal of the signal transmitting module 1 and prevent the output signal or noise of the signal transmitting module 1 from affecting the signal quality of the signal receiving module 2. The common port of the even-odd mode coupler 4 can be used as an external interface of the transceiver integrated circuit (such as an external waveguide interface, which can be connected to an antenna assembly or connected to an antenna assembly through a conversion structure).

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

[0028] It should be explained that since the local oscillator frequencies of multiple signal receiving modules 2 are close to each other, there is a problem of mutual interference. After integrating multiple signal receiving modules 2, it is necessary to solve the problem of mutual interference of the local oscillators between multiple receiving channels. This solution realizes the reverse isolation of signals from the power splitter module 3 to the receiving mixer module 23 by adding an isolation device (such as the second receiving module 24) between the power splitter module 3 and the receiving mixer module 23, increasing the isolation between multiple receiving channels. The downlink signals output by the even-odd mode coupler 4 are amplified by the low-noise amplifier 6 and then enter the power splitter module 3 for multi-path distribution of the downlink signals, so that the noise figures of multiple signal receiving modules 2 can all reach the level of a single receiving channel, which can meet the requirements of the service port + beacon port and satisfy demodulation devices of different frequencies. In addition, in terms of device layout, the relevant circuits of multiple signal receiving modules 2 can be arranged at positions far from each other, and the corresponding circuits can also be covered with a metal shielding cover. Multiple signal receiving modules 2 can also be designed with independent cavity spaces respectively to achieve a better electromagnetic shielding effect. In this solution, except for the necessary direct current and control signals between the signal transmitting module 1 and the signal receiving module 2, there are no redundant connections between the signal transmitting module 1 and the signal receiving module 2. In addition, a metal isolation wall can be set between the signal transmitting module 1 and the signal receiving module 2, and the signal transmitting module 1 and the signal receiving module 2 are respectively installed in mutually isolated spaces to achieve the isolation of the signal transmitting module 1 and the signal receiving module 2, reducing the signal crosstalk between the signal transmitting module 1 and the signal receiving module 2 and providing sufficient transceiver isolation.

[0029] In a possible embodiment, as Figure 2 shown in the circuit structure schematic diagram of a signal receiving module 2 provided, the second receiving module 24 provided in this solution includes a first receiving amplifier 241. Among them, the input end of the first receiving amplifier 241 is connected to the output end of the power splitter module 3, and the output end of the first receiving amplifier 241 is connected to the receiving mixer module 23.

[0030] This solution realizes the reverse isolation of signals from the power splitter module 3 to the receiving mixer module 23 through the reverse isolation characteristic of the first receiving amplifier 241, and can effectively reduce the leakage of signals (local oscillator signals or harmonics of local oscillator signals) 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 relatively small value, and the reverse isolation ability of the first receiving amplifier 241 is used to isolate the local oscillator signal of the receiving mixer module 23, reducing the situation where the local oscillator signal of the signal receiving module 2 where it is located leaks to other signal receiving modules 2 and causes signal interference, and improving the signal transceiver quality.

[0031] In a possible embodiment, the second receiving module 24 provided by this solution further includes a fixed attenuator 242 and / or a first receiving filter 243 (band-pass 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 splitting module 3, the initial stage of the first post-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 saturation caused by the excessive input signal of the receiving mixing module 23, and effectively improve the signal reception quality. The first receiving filter 243 can be used to suppress the out-of-band spurious interference signals in the downlink signal and effectively improve the signal reception quality. The downlink signal output from the power splitting 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 block the leakage of the local oscillator signal from the receiving mixing module 23 into other signal receiving modules 2, and reduce the interference between different receiving channels.

[0032] In a possible embodiment, the first receiving module 22 provided by this solution includes one or more combinations of a receiving attenuator 221 (receiving gain adjustment attenuator), a second receiving amplifier 222, a receiving temperature compensation attenuator 223, and a second receiving filter 224 (intermediate frequency filter). The receiving attenuator 221, the second receiving amplifier 222, the receiving temperature compensation 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 compensation attenuator 223, the second connection end of the receiving temperature compensation 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 (out-of-intermediate frequency band) signals. By processing the downlink signal through one or more combinations of signal gain, signal amplification, temperature compensation, and filtering, the signal reception quality is effectively improved.

[0033] In one embodiment, the transceiver integrated circuit provided by this solution further includes a low-noise amplifier 6. The input end of the power splitter 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 splitter 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. Through the low-noise amplifier 6, this solution can amplify the downlink signal output by the odd-even mode coupler 4, effectively reducing the noise figure of the entire receiving system and improving the quality of the received signal.

[0034] In one embodiment, the receiving mixer module 23 provided by this solution includes a receiving mixer and a receiving phase-locked loop (i.e., a local oscillator phase-locked loop, which can be used as the frequency source of the receiving mixer module 23). 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 this solution includes functional elements and circuits such as a voltage-controlled oscillator (VCO), a frequency discriminator and a phase discriminator, a loop filter, a band-pass filter, a doubler, and a signal amplifier, and the output frequency of the phase-locked loop can be configured through 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 a possible embodiment, as Figure 3 The circuit structure schematic diagram of a signal transmission module 1 provided, the first transmission module 12 provided by this solution 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). 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 mixer module 13. Among them, the first transmission filter 123 and the second transmission filter 124 can be used to filter the uplink signal, the first transmission amplifier 122 can be used to amplify the uplink signal, and the transmission attenuator 121 can be used to adjust the gain of the uplink signal. By filtering, amplifying, and adjusting the gain of the uplink signal, this solution can effectively improve the signal transmission quality.

[0036] In one embodiment, the transmit mixing module 13 provided by this solution includes a transmit mixer and a transmit phase-locked loop (i.e., a local oscillator phase-locked loop, which can serve as the frequency source of the transmit mixing module 13). Among them, 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 transmit module 14 provided by this solution includes one or a combination of more of a third transmit filter 141 (microwave filter), a second transmit amplifier 142 (microwave amplifier), a fourth transmit filter 143 (microwave filter), a transmit temperature compensation attenuator 144, and a third transmit amplifier 145 (driver amplifier). The third transmit filter 141, the second transmit amplifier 142, the fourth transmit filter 143, the transmit temperature compensation attenuator 144, and the third transmit amplifier 145 are connected in series. For example, the third transmit filter 141 and the fourth transmit filter 143 can be used to filter the uplink signal, the second transmit amplifier 142 and the third transmit amplifier 145 can be used to amplify the uplink signal, and the transmit temperature compensation attenuator 144 can be used to compensate for the change in gain when the temperature changes in the signal transmission module 1. By filtering, amplifying, temperature compensating, etc. the uplink signal, this solution can effectively improve the signal transmission quality.

[0038] In a possible embodiment, the signal transmission module 1 provided by this solution further includes a power amplifier 15 (high-power power amplifier). The output end of the second transmit 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 transmit 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-to-waveguide structure. By performing power amplification processing on the uplink signal through the power amplifier 15, this solution effectively improves the signal transmission quality of the uplink signal.

[0039] In one embodiment, the transceiver integrated circuit provided by this solution further includes a reference clock module 5. Among them, 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 transmit mixing module 13 and the receive mixing module 23. Specifically, the output end of the reference clock module 5 is connected to the transmit phase-locked loop in the transmit mixing module 13 and the receive phase-locked loop in the receive mixing module 23.

[0040] Optionally, the terminal device may send a transmitted mixed signal that mixes an uplink signal and a clock signal to the signal transmission module 1. The reference clock module 5 provided in this solution can be used to separate a reference clock signal from the transmitted mixed signal sent from the signal input port 11 and provide the reference clock signal to the transmit mixing module 13 and the receive mixing module 23. Specifically, it provides the reference clock signal to the transmit phase-locked loop in the transmit mixing module 13 and the receive phase-locked loop in the receive mixing module 23. The separated reference clock signal can be used as the reference clock for the transmit phase-locked loop of the transmit mixing module 13 and the receive phase-locked loop of the receive mixing module 23, realizing 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 transmit module 12, and the output end of the low-pass filter can be connected to the transmit mixing module 13 and the receive mixing module 23. The uplink signal (transmit intermediate frequency signal) in the transmitted mixed signal passes through the high-pass filter and is sent to the first transmit module 12, and the reference clock signal in the transmitted mixed signal passes through the low-pass filter and is sent to the transmit mixing module 13 and the receive mixing module 23.

[0042] In one embodiment, the transceiver integrated circuit provided in this solution further includes a transmit intermediate frequency detector 7. The transmit intermediate frequency detector 7 is connected to the output end of the second transmit filter 124. The transmit intermediate frequency detector 7 can be used to detect the amplitude of 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 being damaged and ensure the safety of the circuit.

[0043] As described above, multiple signal receiving modules 2 are connected through a power splitter module 3. The power splitter module 3 can distribute the received downlink signals to multiple signal receiving modules 2. Different signal receiving modules 2 can be configured based on different downlink frequencies, which can simultaneously meet the reception requirements of multiple downlink frequencies. Different signal receiving modules 2 can work independently or simultaneously to adapt to different satellite systems. And the power splitter module 3 and the signal transmitting module 1 are connected through an even-odd mode coupler 4. The even-odd mode coupler 4 can realize the coupling and separation of downlink signals and uplink signals in different directions, realize the reception of downlink signals and the transmission of uplink signals, can simultaneously meet the requirements of signal transmission and reception of multiple downlink frequencies, do not require additional configuration of a receiver to meet the requirements of receiving multiple downlink frequencies, effectively reduce the volume of the satellite communication transceiver, and based on the reverse isolation characteristics of the second receiving module 2, can effectively achieve high isolation between multiple signal receiving modules 2, can effectively reduce the signal leakage of the receiving mixer module 23 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 transceiver quality.

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

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

[0046] Among them, 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 transmitting module in the signal transceiver device. Multiple signal downlink ports of the terminal device are respectively connected to one signal receiving module in the signal transceiver device. The common port of the even-odd mode coupler in the signal transceiver device can be used as an external interface of the signal transceiver device to connect to an antenna.

[0047] When an uplink signal needs to be transmitted, the terminal device transmits the uplink signal through the uplink signal port. After being amplified, filtered and other processed in the first transmitting module of the signal transceiver device, the uplink signal is mixed in the transmitting mixing module and then sent to the second transmitting module for filtering, amplification and other processing, and then sent to the odd-even mode coupler. After being coupled by the odd-even mode coupler, it is transmitted 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 splitting module. The power splitting module distributes the downlink signal to the corresponding signal receiving modules. After the second transmitting module in the signal receiving module filters, amplifies and other processes the downlink signal, it is sent to the receiving mixing 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 further include a temperature control module. The temperature control module may include a controller, a temperature measurement circuit and a fan. The controller may 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, and control the temperature of the amplifier through the fan to ensure the normal operation of the signal transceiver device.

[0049] As described above, the signal transceiver device can be connected to multiple signal receiving modules through the power splitting module. The power splitting module can distribute the received downlink signal to multiple signal receiving modules. Different signal receiving modules can be configured based on different downlink frequencies, which can simultaneously meet the reception requirements of multiple downlink frequencies. Different signal receiving modules can work independently or simultaneously to adapt to different satellite systems. And it is connected to the power splitting module and the signal transmitting module through the odd-even mode coupler. The odd-even mode coupler can achieve the coupling and separation of the downlink signal and the uplink signal in different directions, realize the reception of the downlink signal and the transmission of the uplink signal, can simultaneously meet the signal transmission and the reception of multiple downlink frequencies, does not require additional configuration of a receiver to meet the requirement of receiving multiple downlink frequencies, effectively reduces the volume of the satellite communication transceiver, and based on the reverse isolation characteristics of the second receiving module, can effectively achieve high isolation between multiple signal receiving modules, can effectively reduce the situation of signal leakage from 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 transceiver quality. The transceiver integrated design of the signal transceiver device can effectively reduce the volume of the transceiver components in the satellite communication system. Integrating multiple receiving channels is more conducive to improving the system integration degree. The multi-channel receiving output can be used as a beacon machine and business reception respectively, and can also match different demodulation devices, enriching the usage scenarios of the signal transceiver device.

[0050] The above are only the preferred embodiments of the present application and the technical principles applied. The present application is not limited to the specific embodiments provided here, and various obvious changes, re-adjustments and substitutions that can be made by those skilled in the art will not depart from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments. Without departing from the concept of the present application, it may also include more other equivalent embodiments, 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 splitter 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 includes a signal output port, a first receiving module, a receiving mixing module and a second receiving module connected in sequence, wherein the input ends of the plurality of second receiving modules are respectively connected to an output end of the power dividing module, and the second receiving module is used to control the reverse isolation of the signal from the power dividing 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 splitter 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 the 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 integrated transceiver 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 transceiver integrated 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 further 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, wherein 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 transmit mixing module and the receive 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 according to any one of claims 1 to 9, wherein the management module is connected to the transceiver integrated circuit.

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