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A Q-Slot Monopole for UWB Body-Centric Wireless Communications

Research output: Contribution to journalArticle

Original languageEnglish
Pages (from-to)5069-5075
Issue number10
Early online date17 Aug 2017
Publication statusPublished - Oct 2017


  • A Q-Slot Monopole for_YEBOAH-AKOWUAH_Acc6AugEpub17August2017_GREEN AAM

    Q_journal_R2.pdf, 1.91 MB, application/pdf


    Accepted author manuscript

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King's Authors


This paper presents a novel and simple ultrawideband (UWB) printed rectangular monopole antenna (PRMA) for body-centric wireless communications. The design is based on etching a Q-slot on a rectangular radiator, and is optimized to produce the largest bandwidth in free space and close to the human body. We analyze the design of the proposed antenna and assess its performance in terms of bandwidth, gain, efficiency, and radiation patterns. We also characterize the antenna in the time-domain by calculating its fidelity factor. Our results show that the Q-slot antenna maintains its bandwidth when placed in close contact with the human body, or in contact with breast-mimicking tissue phantoms. The very good agreement between calculated and measured antenna performance in free space and on body suggests that the antenna is immune to variations in the human tissue, and is also robust to fabrication tolerances.

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