Design and experiment input and output coupler for Ka-band helix TWT

Author

Shin, Junguk ; Na, Young-Ho ; Uhm, Han-Sup

Author_Institution

Inst. for Adv. Eng., Gyeonggi-do

fYear

2006

fDate

4-8 June 2006

Firstpage

312

Lastpage

312

Abstract

Summary form only given. An input and output waveguide coupler is designed and built for use in Ka-band helix TWT (traveling wave tube). The characteristic of TWT is well known unique as its broad-band and high power CW operation. The feature of this coupler is a rigid waveguide type Chebyshev multisection transformer for matching between helix circuit and input output ports. We investigated the impedance of helix circuit and Chebyshev transformer at Ka-band frequency 25.5-31.5 GHz by the use of the HFSS. The designed coupler is fabricated and tested in our laboratory. Comparison of HFSS results and experiments is presented for the coupler S11 in bandwidth

Keywords

travelling wave tubes; waveguide couplers; 25.5 to 31.5 GHz; Chebyshev multisection transformer; Ka-band helix TWT; circuit impedance; traveling wave tube; waveguide coupler; Bandwidth; Circuit testing; Coupling circuits; Design engineering; Electron devices; Frequency; Impedance; Laboratories; Power engineering and energy; Satellite ground stations;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 2006. ICOPS 2006. IEEE Conference Record - Abstracts. The 33rd IEEE International Conference on

Conference_Location

Traverse City, MI

Print_ISBN

1-4244-0125-9

Type

conf

DOI

10.1109/PLASMA.2006.1707185

Filename

1707185