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Characteristics of circular patch antenna with and without air gaps
Author(s) -
Biswas M.,
Banik S.
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.26917
Subject(s) - ground plane , microwave , microstrip antenna , air gap (plumbing) , antenna (radio) , patch antenna , microstrip , range (aeronautics) , coaxial antenna , acoustics , engineering , optics , electronic engineering , physics , electrical engineering , materials science , telecommunications , aerospace engineering , composite material
The characteristics of circular patch antenna (CPA) with and without air gaps in between substrate and ground plane are thoroughly investigated. We present a set of closed‐form expressions based on cavity model analysis to predict accurately the characteristics of CPA with and without air gaps. The proposed model is valid for both coaxial‐fed and microstrip line‐fed CPA operated in dominant and higher order modes. The computed values for wide range of antenna parameters, feed locations, and air gaps are compared with different experimental and theoretical values available in open literature. The present model is fast, simple, and closer to the experiments compared with the other models. We have also used a simulator to validate the present model. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1692–1699, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26917