Influence of the Electrical Parameters on Multistage Depressed Collector Characteristics in a Coupled Cavity TWT
耦合腔行波管电参量对降压收集极特性的影响

In this article, based on a coupled cavity TWT design software, Orprogr code, the simulation design of a X band coupled cavity TWT is performed for realizing the expected electric characteristics. Under the condition of the above-mentioned design results, a depressed collector is designed with the minimum collector efficiency of 71.5% and the electron beam may relatively evenly spreads on the surface of each sub-area of the depressed collector. Then the influence of laminar flow, electrode shape, voltage drop and electrical field on the distribution of the beam is discussed by analyzing the spreading of electron beam on the surface of each sub-area of the depressed collector.