Flat-field planar structures designed for small and large aspect ratios

Author

Yu, D. ; Smirnov, A.V. ; Luo, Y.

Author_Institution

DULY Res. Inc., Rancho Palos Verdes, CA, USA

Volume

5

fYear

2001

fDate

2001

Firstpage

3855

Abstract

We consider novel designs that provide field flatness of fundamental mode in transverse dimensions of planar RF structures. These designs include waveguides with slotted irises and/or dielectric loaded side openings. The specially modified, advanced planar structures can be produced with available technology for a number of purposes. High-aspect ratio structures are suitable for mm-wave generation in sheet-beam klystrons (SBK) and for industrial, medical and research linacs. Small aspect-ratio planar structures having "flat" impedance in central area may be applicable to linear colliders. Impedance flatness better than 1/1,000 over half of aperture cross-section is demonstrated in simulations done for sample structures

Keywords

accelerator RF systems; dielectric-loaded waveguides; klystrons; linear colliders; millimetre wave generation; planar waveguides; advanced planar structures; dielectric loaded side openings; flat-field planar structures; fundamental mode; industrial linacs; large aspect ratios; linear colliders; medical linacs; mm-wave generation; planar RF structures; research linacs; sheet-beam klystrons; slotted irises; small aspect ratios; transverse dimensions; waveguides; Acceleration; Apertures; Couplings; Dielectrics; Frequency; Impedance; Klystrons; Particle beams; Periodic structures; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001

Conference_Location

Chicago, IL

Print_ISBN

0-7803-7191-7

Type

conf

DOI

10.1109/PAC.2001.988276

Filename

988276