Flower-petal mode converter for NLC

Author

Hoag, H.A. ; Tantawi, S.G. ; Callin, R. ; Deruyter, H. ; Farkas, Z.D. ; Ko, K. ; Kroll, N. ; Lavine, T.L. ; Menegat, A. ; Vlieks, A.E.

Author_Institution

Stanford Linear Accel. Center, Stanford Univ., CA, USA

fYear

1993

fDate

17-20 May 1993

Firstpage

1121

Abstract

It is important to minimize power loss in the waveguide system connecting klystron, pulse-compressor, and accelerator in an X-Band NLC. However, existing designs of klystron output cavity circuits and accelerator input couplers utilize rectangular waveguide which has relatively high transmission loss. It is therefore necessary to convert to and from the low-loss mode in circular waveguide at each end of the system. A description is given of development work on high-power, high-vacuum `flower-petal´ transducers, which convert the TE₁₀ mode in rectangular guide to the TE₀₁ mode in circular guide. A three-port modification of the flower petal device, which can be used as either a power combiner at the klystron or a power divider at the accelerator is also described

Keywords

S-parameters; cavity resonators; electron accelerators; klystrons; linear accelerators; nuclear electronics; transducers; waveguide components; NLC; Next Linear Collider; X-Band NLC; accelerator; accelerator input couplers; circular waveguide; flower-petal mode converter; klystron; klystron output cavity circuits; power combiner; power divider; pulse-compressor; rectangular waveguide; three-port modification; waveguide system; Circuits; Couplers; Joining processes; Klystrons; Power combiners; Power dividers; Propagation losses; Rectangular waveguides; Tellurium; Transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1993., Proceedings of the 1993

Conference_Location

Washington, DC

Print_ISBN

0-7803-1203-1

Type

conf

DOI

10.1109/PAC.1993.308664

Filename

308664