Slow-Wave Characteristics of Elliptical Corrugated Waveguides with a Concentric Circular Hole
XU Jin, WANG Wen-Xiang, YUE Ling-Na, WEI Yan-Yu, GONG Yu-Bin
National Key Laboratory of High Power Vacuum Electronics, School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054
Slow-Wave Characteristics of Elliptical Corrugated Waveguides with a Concentric Circular Hole
National Key Laboratory of High Power Vacuum Electronics, School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054
Abstract： We present the formulation of elliptical corrugated waveguides with a concentric circular hole using the field-matching method and the addition theorem for Mathieu functions. The dispersion equation and the mean interaction impedance of this structure are derived separately. The numerical results, which are generally based on the current approach, agree well with the results obtained by the commercial software package CST. As a slow-wave structure, this structure has potential applications in high power microwave amplifiers and possibly filtering structures.
2006, Vol. 23 
