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Wideband and compact slot loaded annular ring microstrip antenna using L-probe proximity-feed for wireless communications

Published online by Cambridge University Press:  10 April 2015

Anil Kumar Singh ,
Ravi Kumar Gangwar  and
Binod K. Kanaujia
Anil Kumar Singh
Affiliation:
Electronics and Instrumentation Engineering, Faculty of Engineering and Technology, M.J.P. Rohilkhand University, Bareilly-243006, India Department of Electronics Engineering, I.S.M. Dhanbad, Jharkhand-826004, India
Ravi Kumar Gangwar
Affiliation:
Department of Electronics Engineering, I.S.M. Dhanbad, Jharkhand-826004, India
Binod K. Kanaujia*
Affiliation:
Department of Electronics and Communication Engineering, AIACTR, Geeta Colony-110031, Delhi, India. Phone: +9111 22048047
*
Corresponding author: B. K. Kanaujia Email: bkkanaujia@ieee.org
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Abstract

A wideband orthogonally slot cut annular ring microstrip antenna fed by L-shaped probe is investigated using modal expansion cavity model and circuit theory approach. Simulation of the proposed antenna is performed using Ansoft HFSS and simulated results are compared with the measured and theoretical results. The impedance bandwidth of about 37.46% is observed at resonant frequency 3.15 GHz. The proposed antenna realizes an improvement in bandwidth of 13.46% and miniaturization in physical dimension about 10% from earlier reported structures. An improvement in bandwidth and miniaturization is due to thick substrate, L-probe feed, and orthogonally loaded slots. The measured results of fabricated antennas are in good agreement with simulated and theoretical results.

Keywords

Antennas and propagation for wireless systemsAntenna designModeling and measurements
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 8 , Issue 7 , November 2016 , pp. 1085 - 1093
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

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