Presentation	2007-08-02 Wide Band Metallic Waveguide with In-Line Dielectric Rods Yoshihiro KOKUBO,
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Abstract(in English)	Conventional rectangular metallic waveguides are seldom used in the frequency region over two times higher than the cutoff frequency, because of higher mode propagation. Single mode propagation is available in a metallic waveguide with arrayed dielectric rods at the center of the waveguide in the frequency under twice the cutoff frequency region using the TE_<10> mode, and in the frequency over twice the cutoff frequency region using the TE_<20> mode, because of restrictions of the TE_<10> mode. If a metallic waveguide, dielectric constant and dielectric loss tangent are assumed to be WR-90 (f_c〓6.55 GHz), 29.5 and 1×10^<-4>, respectively, then the attenuation constants are smaller than 0.2 dB/m in the frequency range from 7.5 to 12 GHz, 15.5 to 16.4 GHz, and from 17.0 to 20.9 GHz.
Keyword(in Japanese)	(See Japanese page)
Keyword(in English)	Attenuation constant / Cylindrical array / Single mode / Permittivity
Paper #	MW2007-55,OPE2007-42
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Conference Information
Committee	MW
Conference Date	2007/7/26(1days)
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Paper Information
Registration To	Microwaves (MW)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Wide Band Metallic Waveguide with In-Line Dielectric Rods
Sub Title (in English)
Keyword(1)	Attenuation constant
Keyword(2)	Cylindrical array
Keyword(3)	Single mode
Keyword(4)	Permittivity
1st Author's Name	Yoshihiro KOKUBO
1st Author's Affiliation	Graduate School of Engineering, University of Hyogo()
Date	2007-08-02
Paper #	MW2007-55,OPE2007-42
Volume (vol)	vol.107
Number (no)	172
Page	pp.pp.-
#Pages	5
Date of Issue