Frequency-Tunable antenna by input-impedance-tunable CMOS RF-Frontend

Nadia Haider, Mark S. Oude Alink, Diego Caratelli, Eric A.M. Klumperink, Alexander G. Yarovoy

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

    2 Citations (Scopus)
    35 Downloads (Pure)


    Variable-impedance matching between the antenna and the RF-frontend provides several potential advantages, including changing operational frequency, compensating for unintentional mismatch, improving scanning capability, and reducing noise and interference signal levels. In this article a concept of tuning the operational band of an antenna by variable-impedance matching is presented. In this investigation a 65 nm CMOS RF-frontend capable of changing its input-impedance is used to tune the operational band of a microstrip antenna. It is shown that by properly selecting the input-impedance of the RF-frontend, the operating frequency of the antenna can be shifted, which increases the total operational bandwidth from 10 MHz to more than 30 MHz.
    Original languageEnglish
    Title of host publicationEuropean Microwave Intergrated Circuits Conference, EuMIC 2013
    Place of PublicationManchester, UK
    Number of pages4
    ISBN (Electronic)978-2-87487-032-3
    Publication statusPublished - 6 Oct 2013
    Event8th European Microwave Integrated Circuits Conference, EuMIC 2013 - Nuremberg Convention Center, Nuremberg, Germany
    Duration: 6 Oct 20138 Oct 2013
    Conference number: 8


    Conference8th European Microwave Integrated Circuits Conference, EuMIC 2013
    Abbreviated titleEuMIC


    • EWI-24306
    • METIS-302641
    • IR-88766
    • Variable impedance
    • Frequency tuning
    • CMOS
    • RF-frontend
    • Antennas


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