A monitoring type Beidou short message transceiver antenna

Abstract

The present application relates to a monitoring type Beidou short message transceiver antenna. It includes: a passive short message antenna, a short message power amplifier, a short message low noise amplifier and an integrated module. The passive short message antenna is used to transmit and receive signals with the satellite. The external input short message transmission signal passes through the integrated module and then amplifies the power through the short message power amplifier. According to the pre-selected mode requirements, the control switching network selects the regional short message antenna array or the global short message antenna to radiate the uplink signal to the satellite; the downlink signal is received by the regional short message antenna array or the global short message antenna, filtered and amplified by the short message low noise amplifier, and then enters the integrated module and is output by the same radio frequency interface. The transceiver antenna of the present invention can be compatible with the regional short message and global short message signal transceiver functions, and can effectively reduce the transmission power, with higher reliability.

Description

Technical Field

[0001] The present application relates to the field of antenna technology, and in particular to a monitoring-type Beidou short message transceiver antenna. Background Art

[0002] The short message communication function of the BeiDou system is a landmark function that distinguishes it from satellite navigation systems such as GPS. It is of great significance in many fields such as emergency rescue and aerospace. BeiDou-3 short message communication not only includes regional short messages, but also global short messages that can cover the world. The working frequencies and modes of the two types of services are different. The BeiDou short message communication system realizes the satellite communication function by combining BeiDou satellites, ground operation and control, and user terminals in the space segment. Usually, certain monitoring stations are deployed in a wide area to monitor and evaluate the system service performance. Among them, BeiDou short message monitoring antennas are an important part of the monitoring stations. And as the scale of BeiDou-3 short message users continues to expand, monitoring and evaluation of its service performance will become increasingly important.

[0003] In order to ensure the reliability and electromagnetic compatibility of the antenna, on the one hand, it is necessary to integrate the regional short message and global short message antennas to reduce complexity; on the other hand, since the antenna needs to transmit signals, it is necessary to design low power consumption, reduce the heat dissipation requirements inside the antenna, and extend the service life of the antenna. However, the current Beidou short message antennas all adopt traditional designs. On the one hand, in order to reduce the difficulty of antenna design and control, the regional short message and global short message are separated; on the other hand, over-design is adopted to ensure the success rate of communication by continuously increasing the transmission power of the power amplifier. However, the increase in the power of the power amplifier not only makes the heat dissipation design of the antenna complicated, thus affecting its service life, but more seriously, it will interfere with other satellite communication systems. Summary of the invention

[0004] Based on this, it is necessary to provide a monitoring type Beidou short message transceiver antenna to address the above technical problems.

[0005] A monitoring type Beidou short message transceiver antenna is applied to a monitoring type Beidou short message transceiver receiver, and the transceiver antenna comprises:

[0006] Passive short message antenna, short message power amplifier, short message low noise amplifier and integrated module;

[0007] The passive short message antenna is used to send and receive signals with the satellite. The received signal is amplified by the short message low noise amplifier and then output to the monitoring type Beidou short message transceiver. The monitoring type Beidou short message transceiver outputs a sending signal that is amplified by the short message power amplifier and then sent via the passive short message antenna. The passive short message antenna includes a regional short message antenna array and a global short message antenna.

[0008] After the external input short message transmission signal passes through the integrated module, it is amplified by the short message power amplifier, and according to the pre-selected mode requirements, the switching network is controlled to select the regional short message antenna array or the global short message antenna to radiate the uplink signal to the satellite;

[0009] The downlink regional short message signal or global short message signal is received by the regional short message antenna array or the global short message antenna, filtered and amplified by the short message low noise amplifier, and then enters the integrated module and is output by the same radio frequency interface.

[0010] In one of the embodiments, it also includes: the global short message antenna is installed facing the sky, and the regional short message antenna array is installed on an inclined platform, the angle of the inclined platform is adjusted according to the satellite observation elevation angle of the installation area, and the nearest array elements of the global short message antenna and the regional short message antenna array are 0.5 wavelengths apart.

[0011] In one of the embodiments, it also includes: the regional short message antenna array includes: a binary microstrip radiation patch; the binary microstrip radiation patch is stacked in a stacked manner, stacked up and down by wavelength, the upper layer is an S-band microstrip radiation patch, and the lower layer is an Lf0-Lf3 band microstrip radiation patch; a metallized via is set at the center position of the Lf0-Lf3 band microstrip radiation patch of the lower layer, and the feeding probe of the upper S-band microstrip radiation patch passes through the metallized via to feed the upper radiation unit.

[0012] In one of the embodiments, it also includes: the regional short message antenna array includes: a regional short message beamforming feed network; the regional short message beamforming feed network includes: an S-band beamforming feed network and an Lf0-Lf3 band beamforming feed network; the S-band beamforming feed network includes: 2 S-band four-phase phase shifters and 1 S-band power divider, each S-band four-phase phase shifter provides the S-band microstrip radiating unit with the phase and amplitude conditions required for right-hand circular polarization through a metal probe; The S-band power divider provides equal-amplitude and same-phase excitation conditions for the S-band binary microstrip antenna; the Lf0-Lf3-band beamforming feeding network includes: 6 L-band 90° power divider phase shifters and 1 L-band power divider; each 3 90° power divider phase shifters cooperate with the phase delay provided by the 50Ω transmission line to provide the phase and amplitude conditions required for left-hand circular polarization for the Lf0-Lf3-band microstrip radiating unit; the L-band power divider provides equal-amplitude and same-phase excitation conditions for the Lf0-Lf3-band binary microstrip antenna.

[0013] In one of the embodiments, it also includes: the global short message antenna includes a microstrip radiation patch and a global short message feeding network; the global short message feeding network provides the microstrip radiation patch unit with the phase and amplitude conditions required for circular polarization by mounting three L-band 90° power division phase shifters, one L-band four-phase phase shifter and a printed 50Ω phase delay transmission line, thereby achieving left-hand circular polarization in the Lf4-Lf5 band and right-hand circular polarization characteristics in the B2b band.

[0014] In one of the embodiments, the short message power amplifier includes: a power adjustment submodule, a final stage power amplifier submodule and a control submodule.

[0015] In one of the embodiments, it also includes: the power adjustment submodule of the short message power amplifier includes: a filter, a high-precision attenuator, an amplifier and a coupler; the signal input interface of the power adjustment submodule is the regional short message and global short message input signal interface of the Beidou short message power amplifier, the regional short message and global short message input signals are output to the final power amplifier submodule after passing through the power adjustment submodule, a radio frequency signal is coupled to the control submodule for power detection, and the power supply and control signal of the control submodule are received; after the short message transmission signal enters the Beidou short message power amplifier, it enters the filter of the power adjustment submodule of the short message power amplifier; after the short message transmission signal is filtered, it enters the attenuator for high-precision power adjustment, the short message transmission signal enters the amplifier after power adjustment, the short message transmission signal is amplified, and finally output to the coupler, the coupler outputs two signals, the main signal is output to the final power amplifier submodule, and the coupled signal is output to the control submodule for power detection.

[0016] In one of the embodiments, it also includes: the final power amplifier submodule of the short message power amplifier includes: a power amplifier, a filter, a coupler and a switching network, the final power amplifier submodule receives the regional short message and global short message signals input by the power adjustment submodule, the external output interface is the global short message output signal interface and the regional short message output signal interface, and couples a radio frequency signal to the control submodule for power detection, and receives the power supply and control signal of the control submodule; after the signal is input into the final power amplifier submodule, it enters the power amplifier, amplifies the input signal to the target power, and then outputs it to the filter, and the signal is output to the coupler after passing through the filter, the coupler outputs two signals, the main signal is output to the switching network, and the coupled signal is output to the control submodule for power detection, and the signal implements the global short message output signal or the regional short message output signal port switching under the control instruction of the control submodule.

[0017] In one of the embodiments, the control submodule of the short message power amplifier includes: a microcontroller, a power supply circuit, a power supply detection, a power detection and a temperature detection. The control submodule communicates with the integrated module through a communication interface, receives instructions issued by the integrated module, and reports the current working status according to the instructions. The integrated module provides power for the control submodule; the control submodule detects the output signals of the power adjustment submodule and the final power amplifier submodule, and realizes the switching network control function of the high-precision attenuator of the power adjustment submodule and the final power amplifier submodule.

[0018] In one embodiment, the integrated module includes: a signal forwarding submodule, a power conversion submodule and a communication submodule; the signal forwarding submodule is mainly composed of a transmission signal filter, a regional short message filter, a global short message filter function, a power divider and a circulator; the power conversion submodule is mainly composed of a feeding network, a DC to DC conversion network and a linear voltage stabilization network; the communication submodule is mainly composed of a microcontroller, temperature detection, and power detection.

[0019] The above-mentioned monitoring type Beidou short message transceiver antenna includes: a passive short message antenna, a short message power amplifier, a short message low noise amplifier and an integrated module; the passive short message antenna is used to send and receive signals with the satellite, and the received signal is amplified by the short message low noise amplifier and then output to the monitoring type Beidou short message transceiver receiver, and the monitoring type Beidou short message transceiver receiver outputs a sending signal which is amplified by the short message power amplifier and then sent through the passive short message antenna; the passive short message antenna includes a regional short message antenna array and a global short message antenna; the external input short message transmission signal passes through the integrated module and then is power amplified by the short message power amplifier, and according to the pre-selected mode requirements, the control switching network selects the regional short message antenna array or the global short message antenna to radiate the uplink signal to the satellite; the downlink regional short message signal or the global short message signal is received by the regional short message antenna array or the global short message antenna, filtered and amplified by the short message low noise amplifier, and then enters the integrated module and is output by the same radio frequency interface. The above-mentioned monitoring-type Beidou short message transceiver antenna is compatible with regional short message and global short message signal transceiver functions. The operating information of the antenna low-noise amplifier and power amplifier can be monitored and reported; the regional short message antenna adopts a binary array shaping, which can reduce the transmission power requirements and has higher reliability; the transmitting power amplifier has flexible power adjustment and can perform dynamic power adjustment according to usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a principle block diagram of a monitoring type Beidou short message transceiver antenna in one embodiment;

[0021] Figure 2 A schematic diagram of the three-dimensional structure of a monitoring-type Beidou short message transceiver antenna in one embodiment;

[0022] Figure 3A schematic diagram of the structure of a passive short message antenna in one embodiment;

[0023] Figure 4 A diagram showing a regional short message beamforming feeder network structure in one embodiment;

[0024] Figure 5 A global short message feeding network structure diagram in one embodiment;

[0025] Figure 6 It is a principle block diagram of a short message power amplifier module in an embodiment;

[0026] Figure 7 It is a principle block diagram of a short message low noise amplification module in an embodiment;

[0027] Figure 8 It is a principle block diagram of the integrated module in one embodiment. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] In one embodiment, a monitoring type Beidou short message transceiver antenna is provided, which is applied to a monitoring type Beidou short message transceiver receiver, and the transceiver antenna includes: a passive short message antenna, a short message power amplifier, a short message low noise amplifier and an integrated module; the passive short message antenna is used to transmit and receive signals with a satellite, and the received signal is amplified by the short message low noise amplifier and then output to the monitoring type Beidou short message transceiver receiver, and the monitoring type Beidou short message transceiver receiver outputs a transmission signal, which is amplified by the short message power amplifier and then sent through the passive short message antenna; the passive short message antenna includes a regional short message antenna array and a global short message antenna; the external input short message transmission signal passes through the integrated module and then is power amplified by the short message power amplifier, and according to the pre-selected mode requirements, the control switching network selects the regional short message antenna array or the global short message antenna to radiate an uplink signal to the satellite; the downlink regional short message signal or the global short message signal is received by the regional short message antenna array or the global short message antenna, filtered and amplified by the short message low noise amplifier, and then enters the integrated module and is output by the same radio frequency interface.

[0030] In one embodiment, from Figure 1The monitoring type Beidou short message transceiver antenna is composed of a passive short message antenna, a short message power amplifier, a short message low noise amplifier, and an integrated module, and has the function of sending and receiving regional short messages / global short messages. The monitoring type Beidou short message transceiver antenna transmits and receives signals with the satellite through the passive short message antenna, and communicates with the monitoring type Beidou short message transceiver receiver through the RF port and the network cable to realize the antenna mode control and internal equipment status query function. Among them, the RF port receives the regional short message transmission signal and the global short message transmission signal, outputs the regional short message reception signal and the global short message reception signal to the outside, and obtains DC feed in the form of feeding. Since the regional and global short message modes do not work at the same time, the overall RF link of the antenna is designed to input the short message transmission signal of the monitoring Beidou short message transceiver antenna externally, and enter the short message power amplifier after passing through the internal integrated module of the monitoring Beidou short message transceiver antenna. After the signal is filtered and amplified, according to the current mode requirements, the control switching network selects the regional or global short message transmitting antenna to radiate the uplink signal to the satellite, and the regional short message or global short message signal sent by the satellite is received by the regional or global short message receiving antenna and then filtered and amplified by the short message low noise amplifier, and finally enters the integrated module and is output by the same RF interface.

[0031] In one embodiment, if Figure 2 As shown, the monitoring type Beidou short message transceiver antenna consists of a regional short message antenna array, a global short message antenna, a short message power amplifier, a short message low noise amplifier and an integrated module. The global short message antenna is installed facing the sky, and the regional short message antenna array is installed on an inclined platform. The nearest array elements of the global short message antenna and the regional short message antenna array are 0.5 wavelengths apart to avoid the influence of near-field coupling of the same-frequency antenna on the radiation performance. The short message low noise amplifier module is fixed under the passive short message antenna through the device support platform, which can effectively improve the signal attenuation and base noise rise caused by the long RF cable and improve the antenna reception performance. The short message power amplifier and the integrated module are installed in close contact with the antenna base, which can increase the heat dissipation area, extend the service life of the antenna, and improve the reliability of the antenna.

[0032] In one embodiment, if Figure 3 As shown, the regional short message antenna array includes: a binary microstrip radiation patch; the binary microstrip radiation patch is stacked in a stacked manner, stacked up and down by wavelength, the upper layer is an S-band microstrip radiation patch, and the lower layer is an Lf0-Lf3 band microstrip radiation patch; a metallized via is set at the center position of the Lf0-Lf3 band microstrip radiation patch of the lower layer, and the feeding probe of the upper S-band microstrip radiation patch passes through the metallized via to feed the upper radiation unit, and the metallized via isolation method can ensure that the two frequency bands work independently.

[0033] Specifically, the regional short message antenna array includes: a regional short message beamforming feed network; the implementation principle is as follows: Figure 4As shown, the regional short message beamforming feeding network includes: an S-band beamforming feeding network and an Lf0-Lf3-band beamforming feeding network; the S-band beamforming feeding network includes: two S-band four-phase phase shifters and one S-band power divider, each S-band four-phase phase shifter provides the phase and amplitude conditions required for right-hand circular polarization for the S-band microstrip radiating unit through a metal probe; the S-band power divider provides the S-band binary microstrip antenna with equal amplitude and same phase excitation conditions, thereby realizing the beamforming and right-hand circular polarization characteristics of the S-band. The Lf0-Lf3 band beamforming feeding network includes: 6 L-band 90° power division phase shifters and 1 L-band power divider; each 3 90° power division phase shifters cooperate with the phase delay provided by the 50Ω transmission line to provide the phase and amplitude conditions required for left-hand circular polarization for the Lf0-Lf3 band microstrip radiating unit; the L-band power divider provides equal amplitude and phase excitation conditions for the Lf0-Lf3 band binary microstrip antenna. Thus, the beamforming and left-hand circular polarization characteristics of the Lf0-Lf3 band are realized. Since the frequency ranges of Lf0-Lf3 and S-band signals are far apart, the beamforming feeding networks of the two bands can be integrated into a dielectric substrate, which can reduce the layout space and RF loss and improve the antenna's transceiver performance. The regional short message antenna array uses the method of multi-element shaping to improve gain, which can significantly improve the regional short message reception performance and reduce the short message transmission power consumption.

[0034] In one embodiment, if Figure 5 As shown, the global short message antenna includes a microstrip radiation patch and a global short message feeding network; the global short message feeding network provides the microstrip radiation patch unit with the phase and amplitude conditions required for circular polarization by mounting three L-band 90° power division phase shifters, one L-band four-phase phase shifter and a printed 50Ω phase delay transmission line, thereby realizing the left-hand circular polarization characteristics in the Lf4-Lf5 band and the right-hand circular polarization characteristics in the B2b band, so as to obtain the global short message transmission and reception functions.

[0035] In one embodiment, if Figure 6 As shown, the short message amplifier includes: power adjustment submodule, final amplifier submodule and control submodule. The short message amplifier mainly amplifies the input signal to no less than 40dBm. The module contains 3 RF external interfaces, 1 control interface and 1 power supply interface. The RF interface is the regional short message and global short message input signal interface, the global short message output signal interface, and the regional short message output signal interface.

[0036] In one embodiment, the power adjustment submodule includes: a filter, a high-precision attenuator, an amplifier and a coupler; the signal input interface of the power adjustment submodule is the regional short message and global short message input signal interface of the Beidou short message amplifier, and the regional short message and global short message input signals are output to the final power amplifier submodule after passing through the power adjustment submodule, and a radio frequency signal is coupled to the control submodule for power detection, and the power supply and control signal of the control submodule are received.

[0037] In another embodiment, after the short message transmission signal enters the Beidou short message amplifier, it enters the filter of the power adjustment submodule; after the short message transmission signal completes filtering, it enters the attenuator for high-precision power adjustment. After power adjustment, the short message transmission signal enters the amplifier, amplifies the short message transmission signal, and finally outputs it to the coupler. The coupler outputs two signals, the main signal is output to the final power amplifier submodule, and the coupled signal is output to the control submodule for power detection.

[0038] In one embodiment, the final power amplifier submodule includes: a power amplifier, a filter, a coupler and a switching network. The final power amplifier submodule receives the regional short message and the global short message signal input by the power adjustment submodule, and the external output interface is the global short message output signal interface and the regional short message output signal interface. It also couples a radio frequency signal to the control submodule for power detection, and receives the power supply and control signal of the control submodule.

[0039] In one of the embodiments, the control submodule includes: a microcontroller, a power supply circuit, power supply detection, power detection and temperature detection. The control submodule communicates with the integrated module through a communication interface, receives instructions issued by the integrated module, and reports the current working status according to the instructions. The integrated module provides power for the control submodule; the control submodule detects the output signals of the power adjustment submodule and the final power amplifier submodule, and realizes the switching network control function of the power adjustment submodule high-precision attenuator and the final power amplifier submodule.

[0040] In this embodiment, the control submodule serves as the core of the Beidou short message amplifier and mainly implements three types of functions. The first is to communicate with the outside through the communication interface, receive external control instructions, and feedback information such as output power, temperature, current status, etc. of the power amplifier; the second is to control the power adjustment submodule according to the external instructions, combined with the power amplifier temperature, input power signal, match the internally stored calibration control instructions, and realize high-precision power output function; the third is to manage the power supply of the Beidou short message amplifier and control the power-on and power-off timing of the internal core control modules such as the power amplifier to ensure that they are in normal working condition.

[0041] In one embodiment, if Figure 7As shown in the figure, the short message low noise amplifier includes a regional short message low noise amplifier submodule, a global short message submodule and a detection submodule, which mainly realizes the low noise amplification function of regional short message signals and global short message signals. The short message low noise amplifier has 4 RF interfaces, 1 control interface and 1 power supply interface. The 4 RF interfaces are the regional short message input signal interface, the regional short message output signal interface, the global short message input signal interface and the global short message output signal interface.

[0042] The regional short message low noise amplifier submodule and the global short message submodule are both composed of a cavity filter, a limiter, an amplifier and a dielectric filter. The two types of submodules have similar functions, performance and architecture. The detection submodule is mainly composed of power supply detection and temperature detection parts. The short message monitoring receiver antenna may have a situation where the transmitting signal and the receiving signal exist at the same time. When designing the low noise amplifier, additional out-of-band suppression processing is required for the transmitting signal. After the regional short message signal is input, it first enters the cavity filter. As the front stage of the signal, the cavity filter is responsible for filtering out-of-band interference signals, especially the short message power amplifier radiation signal, to avoid the out-of-band interference signal causing the low noise amplifier to work abnormally; then enter the limiter, the limiter mainly suppresses the strong interference signal in the band that may be input, to avoid the strong signal from damaging the low noise amplifier circuit; then enter the amplifier, the amplifier mainly realizes the low noise amplification function of the input signal; output to the dielectric filter, the dielectric filter mainly suppresses the out-of-band interference signal, especially the short message power amplifier radiation signal that is not completely suppressed by the cavity filter. (The global short message signal receiving and processing process is consistent and will not be repeated here.) The current detection and temperature detection submodule mainly detect the internal state of the module and report the state signal to the outside.

[0043] In one embodiment, if Figure 8 As shown, the integrated module includes: a signal forwarding submodule, a power conversion submodule and a communication submodule. The integrated module has 4 RF interfaces, 3 communication interfaces and 2 power supply interfaces. The first of the 4 RF interfaces is an external RF signal interface. The external RF signal interface receives external input regional short messages and global short message transmission signals, outputs regional short messages and global short message reception signals, and receives external power supply in the form of feeding; the second interface is for externally outputting regional short messages and global short message transmission signals, and outputs signals to the Beidou short message amplifier; the third interface is a regional short message reception signal, which receives a regional short message low noise amplifier output signal, and the fourth interface is a global short message reception signal, which receives a global short message low noise amplifier output signal. The first interface of the 3 communication interfaces communicates with the outside world through a network port, the second interface is connected to the Beidou short message amplifier through a communication port, and the third interface is connected to the short message low noise amplifier through a communication port. The current state of the integrated module is queried, and the first interface of the 2 power supply interfaces supplies power to the Beidou short message amplifier, and the second interface supplies power to the Beidou short message amplifier.

[0044] In one of the embodiments, the signal forwarding submodule is mainly composed of a transmission signal filter, a regional short message filter, a global short message filter function, a power divider and a circulator, and there are three types of RF signal paths inside, global short message signal transmission signal, regional short message receiving signal and global short message receiving signal. The short message transmission signal of the Beidou short message transceiver antenna is input externally through the external RF signal interface, first passes through the circulator, and then passes through the transmission signal filter before being output to the Beidou short message amplifier. The regional short message receiving signal and the global short message receiving signal output by the short message low noise amplifier are input into the signal forwarding submodule signal of the integrated module, first pass through the corresponding short message receiving and global short message filters, and then combine, and finally output through the external RF signal interface. Among them, the circulator mainly realizes the isolation of the global short message signal transmission and the regional short message receiving signal (global short message receiving signal) based on the different directions of the transmission signal and the receiving signal. The filter mainly further filters out the interference signal transmitted by the coupled short message signal.

[0045] In addition, the power conversion submodule is mainly composed of a feed network, a DC to DC conversion network and a linear voltage regulator network, which mainly realizes the power distribution function of each internal module. The external power supply is input through the external RF signal interface, first passes through the feed network, takes out the power supply, then uses the DC to DC conversion network for voltage conversion, and finally outputs the voltage required by the corresponding submodules through the linear voltage regulator network.

[0046] Finally, the communication submodule is mainly composed of a microcontroller, temperature detection, and power detection. It mainly realizes two functions: one is to detect the temperature and current inside the module, and the other is to receive external control instructions and send them to each internal submodule, and at the same time, report the status information of each internal module to the outside.

[0047] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A monitoring type Beidou short message transceiver antenna, characterized in that: Applied to a monitoring type Beidou short message transceiver, the transceiver antenna comprises: Passive short message antenna, short message power amplifier, short message low noise amplifier and integrated module; The passive short message antenna is used to transmit and receive signals with the satellite. The received satellite signal is amplified by the short message low noise amplifier and then output to the monitoring type Beidou short message transceiver. The monitoring type Beidou short message transceiver outputs a transmission signal that is amplified by the short message power amplifier and then sent via the passive short message antenna. The passive short message antenna includes a regional short message antenna array and a global short message antenna. After the external input short message transmission signal passes through the integrated module, it is amplified by the short message power amplifier, and according to the pre-selected mode requirements, the switching network is controlled to select the regional short message antenna array or the global short message antenna to radiate the uplink signal to the satellite; The downlink regional short message signal or global short message signal is received by the regional short message antenna array or the global short message antenna, amplified by the short message low noise amplifier, and then enters the integrated module and is output by the same radio frequency interface; The short message power amplifier comprises: a power adjustment submodule, a final stage power amplifier submodule and a control submodule; The power adjustment submodule of the short message power amplifier includes: a filter, a high-precision attenuator, an amplifier and a coupler; The signal input interface of the power adjustment submodule is the regional short message and global short message input signal interface of the Beidou short message amplifier. The regional short message and global short message input signals are output to the final power amplifier submodule after passing through the power adjustment submodule, and a radio frequency signal is coupled to the control submodule for power detection, and the power supply and control signal of the control submodule are received; After the short message transmission signal is transmitted to the Beidou short message amplifier, it enters the filter of the power adjustment submodule of the short message amplifier; After the short message transmission signal is filtered, it enters the attenuator for high-precision power adjustment. After power adjustment, the short message transmission signal enters the amplifier to amplify the short message transmission signal and finally output it to the coupler. The coupler outputs two signals, the main signal is output to the final power amplifier submodule, and the coupled signal is output to the control submodule for power detection.

2. The transceiver antenna according to claim 1, characterized in that: The global short message antenna is installed facing the sky, and the regional short message antenna array is installed on an inclined platform. The angle of the inclined platform is adjusted according to the satellite observation elevation angle of the installation area. The nearest array elements of the global short message antenna and the regional short message antenna array are 0.5 wavelengths apart.

3. The transceiver antenna according to claim 1, characterized in that: The regional short message antenna array comprises: a binary microstrip radiation patch; The binary microstrip radiation patch is stacked in a stacked manner, stacked up and down by wavelength, with the upper layer being the S-band microstrip radiation patch and the lower layer being the Lf0-Lf3 band microstrip radiation patch; a metallized via is set at the center position of the Lf0-Lf3 band microstrip radiation patch of the lower layer, and the feeding probe of the upper S-band microstrip radiation patch passes through the metallized via to feed the upper radiation unit.

4. The transceiver antenna according to claim 3, characterized in that: The regional short message antenna array includes: a regional short message beamforming feed network; The regional short message beamforming feed network includes: an S-band beamforming feed network and an Lf0-Lf3 band beamforming feed network; The S-band beamforming feeding network includes: two S-band four-phase phase shifters and one S-band power divider, each S-band four-phase phase shifter provides the phase and amplitude conditions required for right-hand circular polarization for the S-band microstrip radiating unit through a metal probe; The S-band power divider provides the S-band binary microstrip antenna with equal amplitude and phase excitation conditions; The Lf0-Lf3 frequency band beamforming feeding network includes: 6 L-band 90° power splitter phase shifters and 1 L-band power splitter; Each of the three 90° power division phase shifters cooperates with the phase delay provided by the 50Ω transmission line to provide the phase and amplitude conditions required for left-hand circular polarization for the Lf0-Lf3 frequency band microstrip radiating unit; The L-band power divider provides equal amplitude and same phase excitation conditions for the Lf0-Lf3 band binary microstrip antenna.

5. The transceiver antenna according to claim 1, characterized in that: The global short message antenna comprises a microstrip radiation patch and a global short message feeding network; The global short message feeding network provides the phase and amplitude conditions required for circular polarization for the microstrip radiation patch unit by mounting three L-band 90° power division phase shifters, one L-band four-phase phase shifter and a printed 50Ω phase delay transmission line, thereby realizing left-hand circular polarization characteristics in the Lf4-Lf5 band and right-hand circular polarization characteristics in the B2b band.

6. The transceiver antenna according to claim 1, characterized in that: The final amplifier submodule of the short message amplifier includes: power amplifier, filter, coupler and switching network. The final power amplifier submodule receives the regional short message signal and the global short message signal input by the power adjustment submodule, couples a radio frequency signal to the control submodule for power detection, and receives the power supply and control signal of the control submodule; After the signal is input into the final power amplifier submodule, it enters the power amplifier, amplifies the input signal to the target power, and then outputs it to the filter. After passing through the filter, the signal is output to the coupler. The coupler outputs two signals. The main signal is output to the switching network, and the coupled signal is output to the control submodule for power detection. The signal realizes global short message output signal or regional short message output signal port switching under the control command of the control submodule.

7. The transceiver antenna according to claim 1, characterized in that: The control submodule of the short message power amplifier includes: a microcontroller, a power supply circuit, a power supply detection, a power detection and a temperature detection. The control submodule communicates with the integrated module through a communication interface, receives instructions issued by the integrated module, and reports the current working status according to the instructions. The integrated module provides power for the control submodule; the control submodule detects the output signals of the power adjustment submodule and the final power amplifier submodule, and realizes the switching network control function of the power adjustment submodule high-precision attenuator and the final power amplifier submodule.

8. The transceiver antenna according to any one of claims 1 to 5, characterized in that: The integrated module includes: a signal forwarding submodule, a power conversion submodule and a communication submodule; The signal forwarding submodule is mainly composed of a transmission signal filter, a regional short message filter, a global short message filter function, a power divider and a circulator; The power conversion submodule is mainly composed of a feed network, a DC to DC conversion network, and a linear voltage regulation network; The communication submodule is mainly composed of a microcontroller, temperature detection, and power detection.

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