Simple theory of input couplers for gyroklystron amplifiers

Author

Garven, Morag ; Manheimer, Wallace M. ; Blank, Monica

Author_Institution

Inst. for Plasma Res., Maryland Univ., College Park, MD, USA

Volume

26

Issue

3

fYear

1998

fDate

6/1/1998 12:00:00 AM

Firstpage

433

Lastpage

443

Abstract

This paper formulates and evaluates simple approaches to the input-wave coupling problem in the Naval Research Laboratory (NRL) 91 GHz gyroklystron amplifier. It looks at the hole between the input waveguide and coaxial cavity, as well as the coupling holes between the coaxial cavity and main cavity as a simple dipole. Direct comparisons are made between the dipole theory and simulations using the Maxwell´s equations solver high frequency structural simulator (HFSS). The results are in reasonable agreement. Where the theory lacks accuracy as compared to modern field solvers, it may gain in simplicity, speed of operation (both human time and computer time) and analytic insight

Keywords

Maxwell equations; gyrotrons; klystrons; microwave amplifiers; waveguide theory; 91 GHz gyroklystron amplifiers; 94 GHz; Maxwell equations solver high frequency structural simulator; Naval Research Laboratory; analytic insight; coaxial cavity; computer time; coupling holes; human time; input couplers; input waveguide; input-wave coupling problem; simple dipole theory; Apertures; Coaxial components; Computational modeling; Couplers; Frequency; Humans; Klystrons; Laboratories; Maxwell equations; Tellurium;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.700775

Filename

700775