Dual Strip-Excited Dielectric Resonator Antenna with Parasitic Strips for Radiation Pattern ReconfigurabilityReport as inadecuate




Dual Strip-Excited Dielectric Resonator Antenna with Parasitic Strips for Radiation Pattern Reconfigurability - Download this document for free, or read online. Document in PDF available to download.

International Journal of Antennas and Propagation - Volume 2014 2014, Article ID 865620, 9 pages -

Research ArticleDepartment of Electrical Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia

Received 15 September 2013; Accepted 27 November 2013; Published 27 January 2014

Academic Editor: Zhaobiao Lv

Copyright © 2014 M. Kamran Saleem et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A novel pattern reconfigurable antenna concept utilizing rectangular dielectric resonator antenna DRA placed over dielectric substrate backed by a ground plane is presented. A dual strip excitation scheme is utilized and both excitation strips are connected together by means of a 50 Ω microstrip feed network placed over the substrate. The four vertical metallic parasitic strips are placed at corner of DRA each having a corresponding ground pad to provide a short-open circuit between the parasitic strip and antenna ground plane, through which a shift of in antenna radiation pattern in elevation plane is achieved. A fractional bandwidth of approximately 40% at center frequency of 1.6 GHz is achieved. The DRA peak realized gain in whole frequency band of operation is found to be above 4 dB. The antenna configuration along with simulation and measured results are presented.





Author: M. Kamran Saleem, Majeed A. S. Alkanhal, and Abdel Fattah Sheta

Source: https://www.hindawi.com/



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