Title :
Open planar sheath slow-wave structure
Author :
Nguyen, Long B. ; Antonsen, Thomas M. ; Nusinovich, Gregory S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Maryland, College Park, MD, USA
Abstract :
A slow-wave structure utilizing planar conductors with rectangular geometry is studied. The dispersion relation and Pierce impedance of symmetric, antisymmetric, and asymmetric modes are analyzed using field theories in the planar sheath approximation, and using numerical analysis via HFSS simulation. The goal is to develop a planar structure driven by a sheet electron beam that is immune to backward wave excitation.
Keywords :
approximation theory; backward wave tubes; electron beams; slow wave structures; HFSS simulation; Pierce impedance; antisymmetric mode; asymmetric mode; backward wave excitation; dispersion relation; numerical analysis; open planar sheath slow-wave structure; planar conductor; planar sheath approximation; rectangular geometry; sheet electron beam; symmetric mode; Approximation methods; Conductors; Dispersion; Electron beams; Electron tubes; Impedance; Periodic structures; backward wave; periodic slow-wave structure; planar; travelling wave;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2013 IEEE 14th International
Conference_Location :
Paris
Print_ISBN :
978-1-4673-5976-4
DOI :
10.1109/IVEC.2013.6571113
