Experimental demonstration of the effect of groove shape on the wave properties of the helical groove waveguide

Author

Wei, Yanyu ; Wang, Wenxiang ; Sun, Jiahong ; Jia, Baofu ; Sinha, A.K. ; Liu, Sheng-Gang ; Park, Gun-Sik

Author_Institution

Sch. of Phys., Seoul Nat. Univ., South Korea

Volume

13

Issue

11

fYear

2003

Firstpage

484

Lastpage

486

Abstract

This letter presents a simple and general fabrication method for helical groove waveguides (HGWs) with successful fabrication of a number of novel HGWs such as the hole-gap-shaped groove HGW, the swallow-tailed groove one, the trapezoid groove one and the ridge-loaded rectangular one. Also, measurements on these structures have been carried out to determine their dispersion properties. The experimental results agree well with the theoretical results and demonstrate the large influence of groove shape on the dispersion characteristics of the structures.

Keywords

dispersion (wave); gyrotrons; helical waveguides; millimetre wave tubes; rectangular waveguides; travelling wave tubes; dispersion properties; fabrication method; groove shape; gyro-TWT; helical groove waveguide; hole-gap-shaped groove HGW; millimeter wave traveling wave tube; ridge-loaded rectangular waveguide; swallow-tailed groove waveguide; trapezoid groove waveguide; wave properties; Dispersion; Electromagnetic waveguides; Millimeter wave communication; Millimeter wave radar; Millimeter wave technology; Optical device fabrication; Physics; Rectangular waveguides; Shape; Sun;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2003.818518

Filename

1243539