NDLI: Miniaturized synthetic rectangular waveguide

Content Provider	IEEE Xplore Digital Library
Author	Hsien-Shun Wu Tzuang, C.-K.C.
Copyright Year	2003
Description	Author affiliation: Inst. of Electr. Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan (Hsien-Shun Wu; Tzuang, C.-K.C.)
Abstract	An artificially engineered, dielectric-filled rectangular waveguide is presented. Such a synthetic waveguide, made by a conventional printed-circuit board (PCB) process, consists of two-dimensional periodical arrays at the top and bottom surfaces and two metallic sidewalls. A synthetic waveguide of cross-section 8.0 mm by 0.609 mm, relative permittivity (/spl epsiv//sub r/) 3.38, shows a cutoff frequency at 4 GHz with normalized propagation constant asymptotically approaching 4.5 at frequencies much greater than the cutoff frequency. Rigorous measurements show that the extracted dispersion curves agree well with theoretical data, demonstrating the feasibility of size reduction of the synthetic rectangular waveguide, breaking the well-known limit of 1//spl radic/(/spl epsiv//sub r/) imposed on conventional rectangular waveguides. Measured data show that the slow-wave factor is 185% higher and cutoff frequency 61.9% lower when comparing the synthetic waveguide with a conventional waveguide of identical dimensions and material constant.
Starting Page	1099
Ending Page	1102
File Size	240319
Page Count	4
File Format	PDF
ISBN	0780376951
ISSN	0149645X
DOI	10.1109/MWSYM.2003.1212560
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-06-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rectangular waveguides Cutoff frequency Waveguide theory Dielectrics Surface waves Propagation constant Permittivity measurement Size measurement Data mining Dispersion
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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