Mode selective properties of coaxial gyrotron resonators

Author

Iatrou, Christos T.

Author_Institution

Inst. fur Tech. Phys., Forschungszentrum Karlsruhe, Germany

Volume

24

Issue

3

fYear

1996

fDate

6/1/1996 12:00:00 AM

Firstpage

596

Lastpage

605

Abstract

In this paper, the mode-selective properties of coaxial gyrotron resonators are discussed for different cavity configurations. Expressions are derived for the ohmic loading of a coaxial conductor with longitudinal corrugations where the RF field inside the corrugations is fully taken into account, and for the diffractive quality factor in coaxial cavities with tapered inner conductor relative to that of an empty cylindrical cavity. The competing action of a kind of “surface mode” that appears in corrugated structures is investigated by considering its diffractive and ohmic quality factors. Additional mode competition problems that can arise in coaxial cavities with corrugated inner conductor due to second cyclotron harmonic interaction are investigated and solutions to the problem are proposed

Keywords

cavity resonators; gyrotrons; millimetre wave tubes; RF field; cavity configurations; coaxial conductor; coaxial gyrotron resonators; longitudinal corrugations; mode competition; mode selective properties; ohmic loading; quality factor; second cyclotron harmonic interaction; tapered inner conductor; Coaxial components; Corrugated surfaces; Cutoff frequency; Gyrotrons; Magnetic field measurement; Rectangular waveguides; Surface impedance; Tellurium; Voltage; Waveguide components;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.532942

Filename

532942