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Analysis of circular microstrip antennas on low‐ and high‐relative‐permittivity substrates
Author(s) -
Verma A. K.
Publication year - 2002
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.10377
Subject(s) - microwave , microstrip , extremely high frequency , relative permittivity , permittivity , microstrip antenna , antenna (radio) , microwave cavity , electrical impedance , method of moments (probability theory) , materials science , engineering , electronic engineering , resonance (particle physics) , input impedance , acoustics , optoelectronics , electrical engineering , physics , dielectric , telecommunications , mathematics , atomic physics , statistics , estimator
A simple and accurate cavity model called the modified Wolff model (MWM) is presented to compute the resonance frequency and input impedance of the circular microstrip antenna on the PTFE, alumina, and GaAs substrates. Results of the MWM show better agreement with the experimental results as compared to results of the commercial software; namely, the standard cavity model adopted in the PCAAD, the multiport cavity model (MCM), and the method‐of‐moments– (MOM) based Ensemble. The MWM works with high accuracy on both the thin and thick substrates and from microwave to millimeter‐wave range. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 34: 75–80, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10377