Schottky frequency doubler for 140–220GHz using MMIC foundry process

Tero Kiuru, Krista Dahlberg, Juha Mallat, Tapani Närhi, Antti V. Raisanen

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

    10 Citations (Scopus)

    Abstract

    Paper presents the design and fabrication steps as well as measurement results for a fixed-tuned full-waveguide band Schottky frequency doubler. The doubler consists of a GaAs MMIC chip embedded in a waveguide channel. The chip is fabricated using a commercial MMIC foundry process and two post-processing options, substrate thinning and etching around anode fingers, are implemented afterwards. The doubler is optimized for flat output power across the G-band (140-220 GHz) and for operation at low input power levels (0.5-10 mW). For example, with an input power level of 2 mW, two doublers with different post-processing options achieve output power flatness of 3.0 dB and 3.8 dB and average efficiencies of 4.0 % and 3.8 % at 140-220 GHz. The maximum measured efficiency and output power with 5 mW of input power are 6.4 % and -5.0 dBm at 204 GHz. To the authors' knowledge, these are the best published results for a full G-band frequency doubler using commercially available MMIC foundry process.
    Original languageEnglish
    Title of host publicationConference Proceedings
    Subtitle of host publication7th European Microwave Integrated Circuits Conference, EuMIC 2012
    PublisherIEEE Institute of Electrical and Electronic Engineers
    Pages84-87
    ISBN (Electronic)978-2-87487-028-6
    ISBN (Print)978-1-4673-2302-4
    Publication statusPublished - 2012
    MoE publication typeA4 Article in a conference publication
    Event7th European Microwave Integrated Circuits Conference, EuMIC 2012 - Held as Part of 15th European Microwave Week, EuMW 2012 - Amsterdam, Netherlands
    Duration: 29 Oct 201230 Oct 2012
    https://ieeexplore.ieee.org/xpl/conhome/6476772/proceeding (Proceedings)

    Conference

    Conference7th European Microwave Integrated Circuits Conference, EuMIC 2012 - Held as Part of 15th European Microwave Week, EuMW 2012
    Abbreviated titleEUMiC 2012
    CountryNetherlands
    CityAmsterdam
    Period29/10/1230/10/12
    Internet address

    Keywords

    • Frequency doubler
    • Schottky diode
    • MMIC

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