Stacked-patch antenna with switchable propagating mode for UHF body-centric communications

W.G. Scanlon, A.R. Chandran

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    14 Citations (Scopus)


    The ability to electronically switch between off-body and on-body communications is a useful feature for wearable antenna applications. Therefore, we present a novel stacked-patch antenna with a switched propagation mode for body-centric communications at 2.45 GHz. Mounted 2 mm above a muscle-tissue phantom and in the on-body mode, the proposed single-port antenna had an efficiency of 62% and an impedance bandwidth of 70 MHz. The antenna performance increased in the off-body mode with an efficiency of 80% and an impedance bandwidth of 247 MHz. In terms of on-body coupling in anechoic conditions, peak |S21| path gains of -39.6 dB and -48.0 dB were obtained for the on-body and off-body configurations, respectively. These results clearly demonstrate the mode isolation obtained.
    Original languageUndefined
    Title of host publicationIEEE International Workshop on Antenna Technology (iWAT)
    Place of PublicationSanta Monica
    Number of pages4
    ISBN (Print)978-1-4244-4395-6
    Publication statusPublished - 3 Mar 2009
    Event2009 IEEE International Workshop on Antenna Technology, iWAT 2009 - Santa Monica, United States
    Duration: 2 Mar 20094 Mar 2009

    Publication series



    Workshop2009 IEEE International Workshop on Antenna Technology, iWAT 2009
    Abbreviated titleiWAT
    Country/TerritoryUnited States
    CitySanta Monica


    • IR-76725
    • EWI-20056
    • METIS-276436

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