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Fast and accurate model of equilateral triangular patch antennas with and without suspended substrates
Author(s) -
Biswas Manatosh,
Dam M.
Publication year - 2012
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.27129
Subject(s) - hfss , equilateral triangle , microwave , bandwidth (computing) , wideband , electrical impedance , patch antenna , acoustics , electronic engineering , input impedance , microstrip antenna , materials science , engineering , antenna (radio) , physics , mathematics , electrical engineering , telecommunications , geometry
A set of closed‐form expressions based on cavity model and equivalent resonant circuits are proposed to compute accurately the resonant frequency, input impedance, bandwidth, and gain of an equilateral triangular patch antenna (ETMPA) with and without suspended substrates. The computed values for wide range of antenna parameters and feed locations of an ETMPA without suspended substrates are compared with different experimental and theoretical values available in open literature. The present model shows very close agreement with experiments. The experimental and theoretical values of input impedance, bandwidth, and gain of an ETMPA on suspended substrate are not available. So, we have employed a commercial simulator (HFSS) to validate the present model with suspended substrate. The present model is very fast, simple, and more close to the experiments compared to other theoretical models and full wave analysis. This model is very useful for designing the MIC on semiconductor materials with ε r ≥ 10. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2663–2668, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27129