A Singly Fed Rectangular Dielectric Resonator Antenna With a Wideband Circular Polarization

Abstract

Article:Sulaiman, M.I. and Khamas, S.K. (2010) ReuseUnless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request.

A state-of-art review on performance improvement of dielectric resonator antennas

“…The literature based on circular polarization has already been discussed in previous section. Apart from this, some other characteristics say wideband, [136][137][138][139][140][141][142][143][144][145][146][147][148][149][150][151][152][153] dualband/ multiband [154][155][156][157][158] including circular polarization have also been reported in literature. This is also being discussed in this section.…”

“…Sulaiman and Khamas 143 have suggested a single feed mechanism with three metallic strips on a half loop antenna for 7% CP bandwidth, which has been again improved to 13% just by adding concentric parasitic open half loop. Sulaiman and Khamas 144 have demonstrated that, by shifting the square spiral shaped feed from center to the right of the DRA surface supported mode from TE y 111 to TE x 111 mode and yields a CP bandwidth of 7%. Khalily et al 145 have achieved 600MHz bandwidth CP rectangular DRA.…”

A Novel Design Approach for a 60 GHZ Circularly Polarized Ebg Antenna

“…In the public literature, many feeding techniques have been proposed to achieve circular polarization [8] such as exciting the DRA with a dual-coaxial probe, dual-conformal strip or with parasitic strips, rotated sequential and aperture feeds. So far there was a number of different element configurations published, including semi-elliptical DR with a hollow elliptical cylinder [9], radiating with a stair-shaped DR [10] and feeding with a square spiral strip [11]. Although most of the configurations mentioned show good performance to generate circular polarization, achievable gain and bandwidth are still below the objectives for the 60 GHz millimeter wave band.…”

Wideband Circularly Polarized Dielectric Resonator Antenna With a Square Spiral Microstrip Feedline

“…AR bandwidths of 3.91% and 2.2% have been achieved for cylindrical DRA excited by a cross-slot [12], and slotcoupled structure [13], respectively. A conformal square spiral strip exciting the cylindrical DRA with a 4.3% CP bandwidth has been reported in [14]. Since the traveling-wave current distribution changes slowly with frequency, a wider CP bandwidth is expected.…”

“…Since the traveling-wave current distribution changes slowly with frequency, a wider CP bandwidth is expected. Such a feeding method has been reported in [15], where a CP bandwidth of 7% has been achieved using a spiral strip to excite a rectangular DRA.…”