Ratio method-based cantilever beam direct MEMS microwave detection and demodulation system in self-adaptive radar

Abstract

The invention discloses a ratio method-based cantilever beam direct MEMS microwave detection and demodulation system in a self-adaptive radar. The system mainly comprises four parts, namely a six-portcantilever beam coupler, a microwave frequency and power detection module, a microwave phase detection module and a demodulation module. The self-adaptive radar is composed of an antenna, a transmit-receive conversion circuit, an MEMS microwave detection and demodulation monolithic integration system, a signal memory, a signal analyzer, a microwave signal reconstruction module, a microwave signalmodulator and a microwave signal power amplifier. According to the structure of the system, a power detection module, a frequency detection module and a phase detection module for microwave signals can be integrated. Meanwhile, the power, the frequency and the phase of microwave signals at the same moment are simultaneously detected, and the demodulation of modulated signals is realized. As a result, the ratio method-based cantilever beam direct MEMS microwave detection and demodulation system in the self-adaptive radar is realized.

Description

technical field [0001] The invention proposes a ratio method cantilever beam direct MEMS microwave detection and demodulation system in an adaptive radar, which belongs to the technical field of micro-electromechanical systems. Background technique [0002] Radar is an effective sensor, and the process of acquiring information is an interaction with the environment. However, in complex and changeable environments, it is difficult for traditional radars to obtain good performance, so adaptive radars are born. Adaptive radar can intelligently change the information processing method according to environmental conditions, and this technology puts forward high requirements for the detection of signal power phase frequency in microwave technology. However, in microwave technology engineering nowadays, some large-scale devices are used to measure microwave signals, which have a series of problems such as large volume, high power consumption, narrow frequency band and low integrat...

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Problems solved by technology

For more complex microwave modulated signals, traditional communication technology needs to use another system for demodulation, which will also cause the above problems and increase a lot of costs

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