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U‐patch antenna loaded by complex substrates for multifrequency operation
Author(s) -
Bilotti Filiberto,
Vegni Lucio,
Alù Andrea
Publication year - 2001
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/mop.10074
Subject(s) - microwave , transmission line , patch antenna , isotropy , bandwidth (computing) , acoustics , electrical impedance , engineering , electric power transmission , antenna (radio) , electrical engineering , radiative transfer , microwave applications , electronic engineering , physics , materials science , optics , telecommunications
In this paper, the analysis of patch antennas with U‐shaped metalization loaded by bianisotropic media is developed. A theoretical study is performed to obtain transmission‐line equations for bianisotropic materials, and then a method‐of‐lines (MoL) procedure is applied to obtain the radiative characteristics. Presented results assure, for particular patch dimensions and feed application geometry, a multifrequency operation in the microwave range, even for isotropic substrates. The application of bianisotropic materials gives better performances for bandwidth and input impedance at the central frequency, but degrades other frequency operation performances. © 2002 John Wiley & Sons, Inc. Microwave Opt Technol Lett 32: 3–5, 2002.

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