The study of the TWT nonlinear parameters test system

Abstract

This paper mainly describes an automatic test system which is used to measure the performance and parameters of the TWT. The operating frequency of this system is 2GHz-18GHz, and its maximum power is 400W. This system consists of hardware test system and test software. The characteristic of the hardware part is the use of a switch matrix composed of microwave switches, which can automatically switch between different test functions and complete the input signal processing; the characteristic of the software is calculating the real data of TWT's parameters based on the internal attenuation data.