Millimetre-Wave Beam-Switching Rotman Lens Antenna Designs on Multi-Layered LCP Substrates

Jussi Säily, Michael Pokorný, Mikko Kaunisto, Antti Lamminen, Jouko Aurinsalo, Zbyněk Raida

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

    16 Citations (Scopus)


    Compact and low-cost antenna arrays with beamsteering or beam-switching are needed for emerging millimeter-wave communication systems such as 5G and WLAN at the 60 GHz frequency band. The Rotman lens is a planar lens which can be used in conjunction with an antenna array to provide several switchable beam directions. The Rotman lens is a truetime delay device which makes it ideal for wideband systems. The proposed concept can be integrated on a printed circuit board construction based on liquid crystal polymer (LCP) base materials. The design, manufacturing and measurement results are presented for a 60 GHz Rotman lens implementation. The presented design can electrically switch between five different beam directions -30°, -15°, 0°, 15° and 30°.
    Original languageEnglish
    Title of host publicationAntennas and Propagation (EuCAP), 2016 10th European Conference on
    PublisherIEEE Institute of Electrical and Electronic Engineers
    ISBN (Electronic)978-8-8907-0186-3
    Publication statusPublished - 2 Jun 2016
    MoE publication typeA4 Article in a conference publication
    Event10th European Conference on Antennas and Propagation, EuCAP 2016 - Davos, Switzerland
    Duration: 10 Apr 201616 Apr 2016
    Conference number: 10


    Conference10th European Conference on Antennas and Propagation, EuCAP 2016
    OtherThe conference will provide an overview of the current state-of-the-art in Antennas, Propagation and Measurements topics, highlighting the latest developments and innovations required for future applications.


    • millimetre-waves
    • Rotman lens
    • 5G
    • antennas
    • beam-switching


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