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Quarter cylindrical dielectric resonator antenna in multi-element composite form for wideband applications

Published online by Cambridge University Press:  03 March 2016

Pinku Ranjan  and
Ravi Kumar Gangwar
Pinku Ranjan
Affiliation:
Department of Electronics Engineering, Indian School of Mines, Dhanbad, India. Phone: +91-326-2235903
Ravi Kumar Gangwar*
Affiliation:
Department of Electronics Engineering, Indian School of Mines, Dhanbad, India. Phone: +91-326-2235903
*
Corresponding author:R.K. Gangwar Email: [email protected]
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Abstract

A novel quarter cylindrical dielectric resonator antenna (q-CDRA) has been introduced by splitting four uniform quarters from a cylinder. q-CDRA has been designed and validated with theoretical analysis. Two and four element q-CDRAs have been proposed in composite forms through Ansoft high-frequency structure simulator simulation software and fabricated for experimental investigation. The input characteristics and radiation patterns of the proposed antennas have been studied through simulation and compared with the measured ones. The |S11| characteristics of the proposed antennas have been compared with each other. The four-element composite q-CDRA has wide impedance bandwidth (|S11| ≤ −10 dB) of 58.15% with monopole-like radiation pattern as compared with other q-CDRAs. The two and four elements q-CDRAs have symmetric monopole-like radiation patterns with linear polarization for whole operating bandwidth (4.5–8.6 GHz). The proposed composite q-CDRAs may find suitable applications in WLAN and WiMAX band.

Keywords

Quarter cylindrical dielectric resonator antenna (q-CDRA)WidebandWLAN and WiMAX bandCoaxial probe feedMonopole type antenna
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Issue 3 , April 2017 , pp. 639 - 647
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2016 

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