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Cutoff and bandwidth characteristics of a circular coaxial waveguide with four symmetrically placed T ‐septa
Author(s) -
Zhang Henry Z.
Publication year - 1997
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(199711)16:4<199::aid-mop1>3.0.co;2-g
Subject(s) - coaxial , broadband , microwave , optics , bandwidth (computing) , physics , cutoff frequency , circular polarization , waveguide , cutoff , engineering , materials science , electrical engineering , microstrip , telecommunications , quantum mechanics
A circular coaxial waveguide with four symmetrically placed T ‐septa is proposed for use as a broadband coupling section for a broad dual‐band, dielectric‐cone‐loaded feed horn. The cutoff and bandwidth characteristics of the proposed structure are analyzed using the Ritz–Galerkin method, modified for circular structure, and the numerical results are compared with those of a circular coaxial waveguide with four symmetrically placed ridges. © 1997 John Wiley & Sons, Inc. Microwave Opt Technol Lett 16: 199–201, 1997.