Research on Vibration Sensor Based on Cylindrical Resonator Structure
摘要
In order to reduce the influence of co-frequency interference on the receiver in continuous wave radar remote micro motion detection, we design a new type of vibration sensor. The sensor is designed based on cylindrical resonator and TM010 and TE111 resonant modes. The relationship between the cavity geometry, tuning column geometry and the working frequency is studied by simulation. The results show that the sensor has good quality factor and antenna gain at two different frequencies, and can be used in the long-distance micro motion detection of continuous wave radar. Its work does not need power supply, which effectively improves the scope of its application scenarios.