Wide Band Metallic Waveguide with Asymmetric In-Line Dielectric Rods

Yoshihiro KOKUBO  Tadashi KAWAI  

IEICE TRANSACTIONS on Electronics   Vol.E91-C   No.12   pp.1966-1968
Publication Date: 2008/12/01
Online ISSN: 1745-1353
DOI: 10.1093/ietele/e91-c.12.1966
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Microwaves, Millimeter-Waves
dielectric rods,  cylindrical array,  single mode,  asymmetry,  

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A system that has an array of dielectric rods at the center of a waveguide was previously suggested for single mode propagation with a wide frequency range. However, it is difficult to introduce the wave source from a coaxial cable, due to use of the TE10-like and TE20-like modes. In this investigation, an asymmetric setup of the dielectric rods is proposed for better coupling efficiency of the TE10 mode.