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)

    Abstract

    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
    PublisherIEEE
    Pages1-4
    Number of pages4
    ISBN (Print)978-1-4244-4395-6
    DOIs
    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

    Name
    PublisherIEEE

    Workshop

    Workshop2009 IEEE International Workshop on Antenna Technology, iWAT 2009
    Abbreviated titleiWAT
    CountryUnited States
    CitySanta Monica
    Period2/03/094/03/09

    Keywords

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

    Cite this

    Scanlon, W. G., & Chandran, A. R. (2009). Stacked-patch antenna with switchable propagating mode for UHF body-centric communications. In IEEE International Workshop on Antenna Technology (iWAT) (pp. 1-4). Santa Monica: IEEE. https://doi.org/10.1109/IWAT.2009.4906964