A Structure for Improving Microdischarge Threshold of Coaxial Transmission Line

Abstract

A structure for improving the micro-discharge threshold of a coaxial transmission line. A plurality of rectangular grooves are arranged inside the outer conductor of the coaxial transmission line. Each rectangular groove is arranged along the cross section of the outer conductor, and the plurality of rectangular grooves are arranged along the coaxial The outer conductors of the type transmission line are arranged in parallel axially, and multiple rectangular grooves form multiple electromagnetic field distortion regions. In this region, the electric field presents a curved shape and is unevenly distributed, so that the force of charged particles in this region is the same as that of conventional coaxial Type transmission lines are different. Under the action of this electric field, charged particles are accelerated from the inner conductor to the outer conductor. When they move to the electromagnetic field distortion area, the trajectory of the charged particles will change, and some charged particles will not hit the outer conductor vertically. These charged particles do not form periodic oscillations between the inner conductor and the outer conductor, thereby reducing the probability of secondary electron excitation and improving the micro-discharge threshold of the coaxial transmission line.

Description

technical field [0001] The invention relates to a structure for improving the micro-discharge threshold of a coaxial transmission line, which belongs to the technical field of coaxial transmission line micro-discharge. Background technique [0002] The coaxial microwave switch is a key component of the satellite payload. Its main function is to switch the radio frequency channel. A fixed amount of hardware is backed up through the switch to achieve more connection status. When some hardware fails, the microwave switch The switching of the working state replaces the faulty hardware with the backup hardware in the system. The use of microwave switches for backup of products with high failure rates such as receivers and high-power amplifiers in the satellite transponder system will greatly improve the reliability of the system. [0003] With the continuous improvement of the power capacity requirements of radio frequency components in communication and navigation satellites in...

AI Technical Summary

Problems solved by technology

In the conventional design, the gap d between the inner and outer conductors needs to be increased when designing to increase the micro-discharge threshold, but because the change of d will put forward new requirements for the design of the driving mechanism at the same time, the coaxial microwave switch is required to change the design of the driving mechanism. Complexity, which reduces the design efficiency of coaxial microwave switches

Images