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2013-09-04

Compact Wideband Rectangular Dielectric Resonator Antenna with Parasitic Elements and Air Gaps

By Mohammad Ranjbar Nikkhah, Jalil Rashed-Mohassel, and Ahmed A. Kishk
Progress In Electromagnetics Research Letters, Vol. 42, 129-139, 2013
doi:10.2528/PIERL13071401

Abstract

A simple compact wideband aperture coupled rectangular dielectric resonator antenna (RDRA) loaded with similar parasitic dielectric elements separated by low dielectric spacers as air gap layers is designed. The bandwidths of the proposed RDRAs are significantly enhanced as compared with the bandwidth of the driven DRA without an air gap. The measurement results are verified experimentally for a one parasitic element case. A bandwidth of 18% and 27% with VSWR better than 2 is achieved for double and triple gaps, respectively. It is interesting to point out that radiation patterns are stable in the entire operation band.

Citation


Mohammad Ranjbar Nikkhah, Jalil Rashed-Mohassel, and Ahmed A. Kishk, "Compact Wideband Rectangular Dielectric Resonator Antenna with Parasitic Elements and Air Gaps," Progress In Electromagnetics Research Letters, Vol. 42, 129-139, 2013.
doi:10.2528/PIERL13071401
http://www.jpier.org/PIERL/pier.php?paper=13071401

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