An array antenna phase real-time monitoring method and system
An array antenna, real-time monitoring technology, applied in the field of array antennas, can solve the problem of inability to monitor the phase change of the array antenna
Active Publication Date: 2022-04-12
GCI SCI & TECH
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Problems solved by technology
[0004] The existing technical solution is to perform phase calibration before the array antenna leaves the factory, but the existing technology cannot monitor the phase change of the array antenna in actual use due to environmental changes, device aging or device damage, etc.
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[0082] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0083] see figure 1 , is a schematic structural diagram of an array antenna phase real-time monitoring system provided by an embodiment of the present invention, as shown in Figure 1 As shown, an array antenna phase real-time monitoring system provided by an embodiment of the present invention includes a radio frequency port, a first coupler, a first detection module, a power divider, n transceiver modules, n second couplers, n second Two detection ...
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The present invention provides a method and system for real-time monitoring of the phase of an array antenna. The first control module controls the first signal generator or the second signal generator to send a detection signal outside the working frequency band of the antenna, and reads the signal through the second phase detector. The phase information of the downlink detection signal sent by the first signal generator reads the uplink detection signal sent by the second signal generator through the first phase detector to detect the phase information during the working process of the array antenna. The detector suppresses the signal in the working frequency band to avoid the influence of the signal in the working frequency band on the detection process. The phase change is detected by the signal outside the working frequency band. The detection process does not affect the normal operation of the array antenna. To monitor the actual phase change and eliminate other irrelevant variables, the implementation process is simple and easy to operate, and the monitoring result of the antenna phase change is more accurate and reliable.
Description
technical field [0001] The invention relates to the field of array antennas, in particular to a method and system for real-time monitoring of the phase of an array antenna. Background technique [0002] The research and application of array antennas has always been a research hotspot in the field of antennas. Compared with traditional single antennas, array antennas can quickly and flexibly realize the beamforming of antenna patterns by controlling the feeding phase of each antenna module of the array antenna, so it is widely used. It is used in many fields such as satellite navigation, communication, military affairs, and remote sensing. As the future antenna technology, the active array antenna is an important trend in the design and development of array antennas in the future, and it is an important development direction for subsequent antenna system miniaturization, intelligent coverage, and green base stations. [0003] In recent years, the technology of analog and dig...
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IPC IPC(8): H04B1/401H04B7/02H04B17/00H04B17/10H04B17/20
CPCH04B7/02H04B1/401H04B17/0085H04B17/101H04B17/20
Inventor 吴海林周震周芳华
Owner GCI SCI & TECH