Fast and accurate model for a coax-fed rectangular patch antenna with varying aspect ratio, feed location and substrate electrical parameters

ABSTRACT

An improved closed-form model based on cavity model and single resonant parallel R-L-C circuit analysis is proposed to predict the resonant frequency, quality factor, bandwidth, gain and input impedance of a coax-fed rectangular patch antenna as a function of aspect ratio, feed location and substrate electrical parameters. The computed values employing the present model are compared with our experimental results and experimental results available in open literature. We have also employed electromagnetic high-frequency structure simulator (HFSS) software to validate the model. The present model shows very close agreements with the experimental and simulation results compared to the other models. This model is very simple, fast and accurate. The present model can be directly applied to CAD program.

KEYWORDS:

• Improved closed-form model
• resonant frequency
• quality factors
• bandwidth
• gain
• input impedance. microstrip antennas

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Notes on contributors

Manotosh Biswas

Manotosh Biswas was born in West Bengal, India, in 1976. He received his B.Tech., M.Tech. and Ph.D. degrees in Radio Physics and Electronics from the University of Calcutta, India, in 2001, 2003, and 2008, respectively. Dr. Biswas obtained the Young Scientist Award from URSI in 2005 and is a senior member of IEEE. He started his carrier in the Department of Electronics, West Bengal State University, India as a Reader in Feb. 2009. In July 2010 he joined as a Reader in the department of Electronics & Tele-Communication Engineering, Jadavpur University, India and currently he is serving as a Professor in the same University. His research interest includes Planner Antennas, Dielectric Resonator Antennas and Mate materials. He has published more than 28 technical journal articles and 50 technical conference proceedings articles.

Mausumi Sen

Mausumi Sen was born in West Bengal, India, in 1966. He received the M.Sc. in Electronic Science from University Calcutta in 1988 and the M.Tech. degree in Microwave from Burdwan University in 1999. She was an Engineering Assistant in All India Radio & Doordarshan during 8 years. At present she is an Associate Professor in the Department of Physics, Gobardanga Hindu College. At the same time she is working toward Ph.D. degree at Jadavpur University in the field of Microstrip Antenna. She has published more than 12 technical articles in journals and conference proceedings. Her interests include microwave antenna.