Power Limiter and Test System Based on Atmospheric Pressure Plasma and Microwave Discharge

Abstract

This disclosure proposes a microwave circuit power limiter and test system based on atmospheric pressure discharge plasma. The power limiter includes an atmospheric pressure plasma jet generation device, a microwave power input device, and a resonance device. The atmospheric pressure plasma jet generation device, microwave The power transmission devices are respectively connected to the resonance device, and the discharge plasma generated by the atmospheric pressure plasma jet generation device contacts and fuses with the discharge plasma generated by the microwave discharge of the incident signal of the microwave power transmission device, and the microwave power transmission device is transferred in the resonance device The incident signal is reflected and attenuated and output. Under the joint action of atmospheric pressure plasma jet and microwave discharge, atmospheric pressure discharge plasma is generated, and the limiter can reflect and attenuate the incident power in the microwave circuit, and has the advantages of fast response speed, high power tolerance, wide protection frequency band, etc. Advantages, can meet the actual needs of high-power and high-frequency microwave circuit power limiting.

Description

technical field [0001] The present disclosure relates to the related technical field of limiters, in particular, to a power limiter and a testing system based on atmospheric pressure plasma and microwave discharge. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] In high-power and ultra-high-power RF systems, the limiter is mainly used to protect the input end of the receiver. The limiter is usually a pair of diodes connected in antiparallel between the signal input terminal and the ground. When the input is a small signal lower than the conduction voltage of the diode, the diode is non-conductive, like an open circuit, and will not affect the receiver. In operation, when the input is a large signal higher than the diode conduction voltage, about 0.7V, the amplitude of the signal input to the receiver will be limited below the diode condu...

AI Technical Summary

Problems solved by technology

The inventor found that traditional power limiters have disadvantages such as slow power response speed, low power tolerance, and narrow protection frequency band.

And there is no effective detection system for the power limiter, which can accurately judge the function test of the power limiter

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