Antenna for Ultra-Wideband Applications with Non-Uniform Defected Ground Plane and Offset Aperture-Coupled Cylindrical Dielectric Resonators

Zebiri, C.; Sayad, D.; Elfergani, I.T.E.; Kosha, J.; Mshwat, W.F.A.; See, Chan Hwang; Lashab, M.; Rodriguez, J.; Sayidmarie, K. H.; Obeidat, H.A.; Abd-Alhameed, R.A.

Abstract

A new compact Cylindrical Dielectric Resonator Antenna (CDRA) with a defected ground for ultra-wideband applications is presented. The structure is based on two cylindrical dielectric resonators asymmetrically located with respect to the center of an offset rectangular coupling aperture, with consideration of three and four Dielectric Resonators (DR). The resonant modes generated by the defected ground are studied and investigated. A parametric optimization study of the antenna design has been carried out to determine the optimal dimensions of the defected ground plane, resulting in an impedance bandwidth of over 133% that covers the frequency band from 3.6 GHz to 18.0 GHz. A power gain of about 7.9 dBi has been achieved. Design details and measured and simulated results are presented and discussed.

Citation

Zebiri, C., Sayad, D., Elfergani, I., Kosha, J., Mshwat, W., See, C. H., …Abd-Alhameed, R. (2019). Antenna for Ultra-Wideband Applications with Non-Uniform Defected Ground Plane and Offset Aperture-Coupled Cylindrical Dielectric Resonators. IEEE Access, 7, 166776-166787. https://doi.org/10.1109/ACCESS.2019.2949527

• Journal Article Type: Article
• Acceptance Date: Oct 6, 2019
• Online Publication Date: Oct 28, 2019
• Publication Date: Oct 28, 2019
• Deposit Date: Oct 14, 2019
• Publicly Available Date: Oct 14, 2019
• Electronic ISSN: 2169-3536
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 7
• Pages: 166776-166787
• DOI: https://doi.org/10.1109/ACCESS.2019.2949527
• Keywords: Cylindrical Dielectric Resonators Antenna, Ultra-Wideband, Defected Ground Structure
• Public URL: http://researchrepository.napier.ac.uk/Output/2225562