Coupler design for x-band hybrid dielectric-iris-loaded accelerator

Author

Wu, Cong-Feng ; Hui, Lin ; He, Xiaodong ; Dong, Sai

Author_Institution

USTC, Hefei

fYear

2007

fDate

25-29 June 2007

Firstpage

2152

Lastpage

2154

Abstract

The coupler design for X-band hybrid dielectric-iris- loaded accelerator has been studied. Firstly, the S parameter versus the coupler cavity radius b, the iris aperture w and its thickness h has been simulated by Microwave Studio for the ordinary coupling cavity due to its simplicity. We have obtained the primary experiment result of the standing-wave ratio of the coupling cavity being 1.82. Secondly, the new coupler with the dual symmetric coupling ports , which first converts RF from TE to TM mode in a pure metal section and then a tapered transition section is added for high efficiency transmission to the dielectric accelerator section, has been calculated. The simulated results show that it is capable to convert the rectangular TE₁₀ mode into circular TM₀₁ mode with high efficiency.

Keywords

accelerator RF systems; accelerator cavities; waveguide couplers; RF sources; TE mode; TM mode; X-band hybrid dielectric-iris-loaded accelerator; coupler cavity; coupler design; iris aperture; standing-wave ratio; Acceleration; Apertures; Couplings; Dielectrics; Geometry; Helium; Iris; Radio frequency; Scattering parameters; Tellurium;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2007. PAC. IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

978-1-4244-0916-7

Type

conf

DOI

10.1109/PAC.2007.4441180

Filename

4441180