Si-based amplitude-comparing method MEMS microwave detection and demodulation monolithic integration system in adaptive radar

Abstract

The present invention provides a Si-based amplitude-comparing method MEMS microwave detection and demodulation monolithic integration system in an adaptive radar. The adaptive radar is formed by an antenna, a receiving-transmitting conversion circuit, an adaptive radar receiving system (30) and an adaptive radar transmitting system (31). The adaptive radar receiving system (30) is formed by cascading of a MEMS microwave detection and demodulation monolithic integration system (24), a signal storage (25) and a signal analyzer (26) to achieve detection and analysis of unknown radar signals; andthe adaptive radar transmitting system (31) is formed by microwave signal reconfiguration (27), a microwave signal modulator (28) and a microwave signal power amplifier (29). Through the structure mentioned above, the detection of power, phases and frequency of the microwave signals and demodulation of the modulated signals are performed at the same time to achieve integration of the MEMS microwave detection and demodulation monolithic system facing the adaptive radar.

Description

technical field [0001] The invention proposes a Si-based phase comparison MEMS microwave detection and demodulation monolithic integrated system in an adaptive radar, which belongs to the technical field of micro-electromechanical systems. Background technique [0002] Although the electronic countermeasure system of the existing radar can quickly and accurately identify the enemy radar system working in the common band, but this kind of matching, jamming and deception of the enemy radar signal based on the known threat, once the enemy If the radar signal is not obvious enough or is an unknown signal, the countermeasure effect will be seriously reduced. The new advanced adaptive radar electronic countermeasures include two key systems: adaptive radar reconnaissance and high-fidelity deception. Adaptive radar reconnaissance refers to radar signal detection, radar characteristic analysis, countermeasure pattern selection, countermeasure effect analysis and countermeasure Patt...

AI Technical Summary

Problems solved by technology

However, in the existing technology, the detection of the power, phase and frequency of the microwave signal is measured separately, and the microwave transmission lines, microwave couplers, and microwave power dividers used are all made of traditional ferrite Waveguide materials lead to the shortcomings of the entire system, such as large volume, high power consumption, narrow frequency band, and low integration. In addition, for more complex microwave modulated signals, traditional communication technology needs to use another system for demodulation. This will also cause the above problems, and at the same time increase a lot of cost, making it difficult to use in adaptive radar

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