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Dual Segment S-Shaped Aperture-Coupled Cylindrical Dielectric Resonator Antenna for X-Band Applications

Majeed, Asmaa H.
; 
Abdullah, Abdulkareem S.
; 
Elmegri, Fauzi
; 
Sayidmarie, Khalil H.
; ; 
Noras, James M.
Publication Date
2015-10-12
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Keywords
S-shaped slot coupling, L-shaped feed line, HEM11δ mode, X-band, Dual-segmented dielectric resonator antenna (DRA)
Rights
© 2015 IET. Reproduced in accordance with the publisher's self-archiving policy. This paper is a postprint of a paper submitted to and accepted for publication in IET Microwave Antennas & Propagation and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library
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openAccess
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Engineering and Digital Technology Publications
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Abstract
A new low-cost dual-segmented dielectric resonator (DR) antenna design is proposed for wideband applications in the X-band region. Two DRs coupled to an S-shaped slot introduce interesting features. The antenna performance was characterized in terms of the reflection coefficient, gain, and radiation pattern, and detailed simulation studies indicate excellent antenna performance from 7.66 GHz to 11.2 GHz (37.5% fractional bandwidth) with a maximum gain of 6.0 dBi at 10.6 GHz while the fabricated prototype has a matched bandwidth from 7.8 GHz to 11.85 GHz (41% fractional bandwidth) and maximum gain of 6dBi. The antenna is compact, size 1 x 0.83 x 0.327 time the wavelength at 10 GHz. The two DR segments may be located on the same side or on opposite sides of the substrate, giving respectively improved gain or more uniform field patterns. Experimental testing of the prototype performance showed reasonable agreement with the predicted performance.
URI
http://hdl.handle.net/10454/7885
Version
Accepted manuscript
Citation
Majeed AH, Abdullah AS, Sayidmarie KH et al (2015) Dual-segment S-shaped aperture-coupled cylindrical dielectric resonator antenna for X-band applications. IET Microwave Antennas & Propagation. 9(15): 1673-1682.
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Link to Version of Record
https://doi.org/10.1049/iet-map.2015.0076
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Article
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