RF MEMS Based Impedance Matching Networks for Tunable Multi-Band Microwave Low Noise Amplifiers

R. Malmqvist, Pekka Rantakari, C. Samuelsson, Markku Lahti, S. Cheng, Jan Saijets, Tauno Vähä-Heikkilä, A. Rydberg, Jussi Varis

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

    16 Citations (Scopus)


    In this paper, we present different types of reconfigurable RF MEMS based matching networks intended for frequency-agile (multi-band) LNAs. Measured results of 2-bits matching networks show a centre frequency tuning range of 2-3 GHz (10-13%) around 20 GHz and 1.5-2.0 dB of minimum losses. Simulated tunable LNA results based on measured data of the RF MEMS matching networks show the possibilities of achieving similar high gain, good matching and low NF over the whole tuning range. The results demonstrate the potential of using RF MEMS switches for the realization of tunable LNAs at microwave and millimetre-wave frequencies.
    Original languageEnglish
    Title of host publication2009 International Semiconductor Conference (CAS 2009)
    PublisherIEEE Institute of Electrical and Electronic Engineers
    ISBN (Print)978-1-4244-4413-7
    Publication statusPublished - 2009
    MoE publication typeA4 Article in a conference publication
    EventInternational Semiconductor Conference 2009 - CAS 2009 - Sinaia, Romania
    Duration: 12 Oct 200914 Oct 2009


    ConferenceInternational Semiconductor Conference 2009 - CAS 2009


    • RF MEMS
    • Ka-band
    • impedance matching network
    • low noise amplifier


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