Showing papers by "Yanyu Wei published in 1996"
TL;DR: In this paper, the relation between microwave frequency and virtual cathode (VC) oscillation in a specific cylindrical cavity is analyzed by the means of model expansion method, and the expressions of mode expansion coefficients are derived.
Abstract: Microwave excited by virtual cathode (VC) oscillation in a cylindrical cavity is analyzed. The VC is regarded as a oscillating charged disk. By the means of model expansion method, the relation between microwave frequency and VC oscillation in a specific cylindrical cavity is obtained. The expressions of mode expansion coefficients are derived. The results show that at longer cavity length, the microwave excited is more pure, this is in good agreement with experiment results. Analysis confirms that the closer is the characteristic freuency of a mode to the oscillating frequency of VC, the larger is the mode expansion coefficient.
1 citations