Title :
Design of input and output couplers for Ku-band 140 Watts space TWT
Author :
Srivastava, V. ; Srivastava, Anurag ; Singh, VVP ; Chandan, Shiv
Author_Institution :
CEERI, Pilani, India
Abstract :
Input and output couplers have been designed for Ku-band 140 W TWT with minimum reflection and transmission loss over the desired frequency range of 10.9 to 11.7 GHz. The software package Ansoft HFSS version 8.5 was used to simulate the coupler terminated with the actual helix slow wave structure (SWS). The SWS is a tungsten tape helix, which is supported inside the metallic barrel assembly using three rectangular shaped APBN support rods at 120 degrees. The return loss characteristics for both input and output couplers were investigated.
Keywords :
digital simulation; slow wave structures; tungsten; waveguide couplers; 10.9 to 11.7 GHz; 140 W; Ansoft high frequency structure simulator; Ku-band TWT; W; helix slow wave structure; input couplers design; metallic barrel assembly; output couplers design; reflection loss; return loss; transmission loss; travelling wave tube; tungsten tape helix; Assembly; Ceramics; Coaxial components; Conductors; Couplers; Impedance; Performance loss; Radio frequency; Reflection; Waveguide transitions;
Conference_Titel :
Vacuum Electronics, 2003 4th IEEE International Conference on
Print_ISBN :
0-7803-7699-4
DOI :
10.1109/IVEC.2003.1286204
