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    Balanced dual-segment cylindrical dielectric resonator antennas for ultra-wideband applications.

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    Asmaa Balanced IET_MAP_2015.pdf (1.646Mb)
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    Publication date
    2015-10-22
    Author
    Majeed, Asmaa H.
    Abdullah, Abdulkareem S.
    Sayidmarie, Khalil H.
    Abd-Alhameed, Raed A.
    Elmegri, Fauzi
    Noras, James M.
    Keyword
    Ultra-wide band (UWB), Balanced antenna, Dual-segment cylindrical dielectric resonator antenna, CDRA, L-shaped feeding line
    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.
    Peer-Reviewed
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    Abstract
    In this paper, balanced dual segment cylindrical dielectric antennas (CDRA) with ultra wide-band operation are reported. First a T-shaped slot and L-shaped microstrip feeding line are suggested to furnish a balanced coupling mechanism for feeding two DRAs. Performance of the proposed antenna was analyzed and optimized against the target frequency band. The proposed antenna was then modified by adding a C-shaped strip to increase the gain. The performances of both balanced antennas were characterized and optimized in terms of antenna reflection coefficient, radiation pattern, and gain. The antennas cover the frequency range from 6.4 GHz to 11.736 GHz, which is 58.7% bandwidth. A maximum gain of 2.66 dB was achieved at a frequency of 7 GHz with the first antenna, with a further 2.25 dB increase in maximum gain attained by adding the C-shaped strip. For validation, prototypes of the two antennas were fabricated and tested. The predicted and measured results showed reasonable agreement and the results confirmed good impedance bandwidth characteristics for ultra-wideband operation from both proposed balanced antennas.
    URI
    http://hdl.handle.net/10454/7890
    Version
    Accepted Manuscript
    Citation
    Majeed AM, Abdullah AS, Sayidmarie KH, Abd-Alhameed RA, Elmegri F and Noras JM. (2015) Balanced dual-segment cylindrical dielectric resonator antennas for ultra-wideband applications. IET Microwave Antennas & Propagation, 9 (13): 1478-1486.
    Link to publisher’s version
    http://dx.doi.org/10.1049/iet-map.2015.0221
    Type
    Article
    Collections
    Engineering and Informatics Publications

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