MEMS microwave detection and demodulation monolithic integrated system with phase comparison method based on GaAs in adaptive radar

Abstract

The adaptive radar faced by the invention consists of an antenna, a transceiver conversion circuit, an MEMS microwave detection and demodulation monolithic integrated system, a signal memory, a signalanalyzer, microwave signal reconstruction, a microwave signal modulator, and a microwave signal power amplifier. An MEMS microwave detection and demodulation monolithic integrated system with a phasecomparison method based on GaAs in the adaptive radar mainly consists of a six-port fixed beam coupler, a microwave frequency and power detection module, a microwave phase detection module, and a demodulation module. The detection of power, phase and frequency of microwave signals and the demodulation of modulated signals can be carried out at the same time by using the structure, and so the monolithic system integration of the MEMS microwave signal detection and demodulation for the adaptive radar can be realized.

Description

technical field [0001] The invention provides a GaAs-based phase comparison MEMS microwave detection and demodulation single-chip 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 P...

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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