Mode discriminator based on mode-selective coupling

Author

Wang, Wenxiang ; Gong, Yubin ; Yu, Guofen ; Yue, Lingna ; Sun, Jiahong

Author_Institution

Nat. Key Lab. of High Power Vacuum Electron., Univ. of Electron. Sci. & Technol. of China, Sichuan, China

Volume

51

Issue

1

fYear

2003

fDate

1/1/2003 12:00:00 AM

Firstpage

55

Lastpage

63

Abstract

Mode discriminators based on a mode-selective coupling principle have a number of advantages. The design method of this type of discriminator is presented in this paper. The emphasis is placed on the mode-selective coupler with a multihole and multigroup of coupling holes. All of the dimensions of the discriminator are determined by this method. The calibration and power measurement of the discriminator are also investigated. Some design examples of discriminators for 35- and 70-GHz gyrotrons, which can be applied to discriminate the TE₁₁, TE₀₁, and TE₀₂ modes and the TE₀₁, TE₀₂, and TE₀₃ modes, respectively, are given.

Keywords

calibration; discriminators; gyrotrons; millimetre wave devices; millimetre wave tubes; waveguide components; 35 GHz; 70 GHz; calibration; coupling holes; gyrotrons; mode discriminator; mode-selective coupling; multigroup; multiholes; power measurement; Antenna measurements; Calibration; Coupling circuits; Design methodology; Electromagnetic heating; Infrared heating; Microwave devices; Microwave measurements; Power measurement; Sun;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2002.806947

Filename

1159667