77 GHz beam-switching high-gain end-fire antenna on LTCC

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    6 Citations (Scopus)


    In this paper, a design of a 77 GHz beam-switching antenna on Ferro A6-M LTCC is presented. The antenna consists of three high-gain end-fire type antenna elements pointing at different directions. One element is active at a time and the appropriate element is selected using a commercial SP4T GaAs pin-diode switch. A design of a transition from a WR-10 waveguide to a microstrip line for radiation pattern testing purposes is also described. The transition covers almost the entire waveguide W-band and the measured reflection coefficient is below -10-dB between 77 GHz and 110 GHz. The total loss of the transition is only 1 dB at the maximum. Measured maximum gain of 9.2 dBi and a -3-dB beamwidth of about 40° are achieved for a single antenna element. Simulated radiation efficiency is 89 %. Beam switching between three different directions is demonstrated with radiation pattern measurements at 78 GHz. Good agreement is achieved between the simulated and measured results. The presented antenna is a very promising candidate for high data rate short-range millimetre-wave applications.
    Original languageEnglish
    Title of host publicationProceedings of ICECom 2010
    Place of PublicationCroatia
    PublisherIEEE Institute of Electrical and Electronic Engineers
    ISBN (Electronic)978-9-5360-3758-2
    ISBN (Print)978-1-61284-998-0
    Publication statusPublished - 2010
    MoE publication typeA4 Article in a conference publication
    Event20th International Conference on Applied Electromagnetics and Communications, ICECom 2010 - Dubrovnik, Croatia
    Duration: 20 Sept 201023 Sept 2010
    Conference number: 20


    Conference20th International Conference on Applied Electromagnetics and Communications, ICECom 2010
    Abbreviated titleICECom 2010


    • Millimetre waves
    • E-band
    • LTCC
    • beam-switching antenna
    • high-gain
    • end-fire


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