Title :
Investigation into a triangular-helix slow-wave structure
Author :
Rao, K.V. ; Chanakya, T. ; Naidu, Vemula Bhanu ; Datta, Soumya Kanti
Author_Institution :
Microwave Tube R&D Centre, Bangalore, India
Abstract :
In this paper, a novel slow-wave structure consisting of a triangular cross-section helix supported inside a metallic envelope using azimuthally symmetrically placed three rectangular dielectric support rods is proposed. The slow-wave characteristics of the structure are computed using 3D electromagnetic simulation in CST-studio and compared to an equivalent circular helix slow-wave structure. The circuit shows higher on-axis interaction impedance compared to its circular-helix counterpart SWS.
Keywords :
dielectric devices; slow wave structures; 3D electromagnetic simulation; CST-studio simulation; circular-helix counterpart SWS; equivalent circular helix slow-wave structure; metallic envelope; on-axis interaction impedance; rectangular dielectric support rod; triangular cross-section helix slow-wave structure; Analytical models; Dielectrics; Dispersion; Electron tubes; Impedance; Solid modeling; Three-dimensional displays; 3D electromagnetic analysis; Helix slow-wave structure; Triangular-helix;
Conference_Titel :
Vacuum Electronics Conference, IEEE International
Conference_Location :
Monterey, CA
DOI :
10.1109/IVEC.2014.6857605
