W-band injection-locked frequency octupler using a push-push output structure

Kwangwon Park, Dongkyo Kim, Iljin Lee, Sanggeun Jeon

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    This letter presents an injection-locked frequency octupler (ILFO) fabricated using a 100-nm GaAs pHEMT. A frequency quadrupler, followed by an injection-locked push-push oscillator, is employed to achieve a high multiplication factor of eight with a simple structure. Compared to conventional amplifier-multiplier chains, the proposed structure is advantageous for dc power and chip area consumption, phase noise, and circuit stability. The high multiplication factor allows the use of a low-frequency, high-performance, phase-locked-loop (PLL) as input. The ILFO achieves a locking range from 90.5 to 95.2 with 1-dBm input power. The output power is measured to be −0.4 dBm at 91.2 GHz. The phase-noise degradation from the input source to the output is 19.7 dB at 100-kHz offset.

    Original languageEnglish
    Article number2946112
    Pages (from-to)822-825
    Number of pages4
    JournalIEEE Microwave and Wireless Components Letters
    Volume29
    Issue number12
    DOIs
    Publication statusPublished - 2019 Dec

    Bibliographical note

    Funding Information:
    Manuscript received July 23, 2019; revised September 3, 2019; accepted October 2, 2019. Date of publication October 21, 2019; date of current version December 4, 2019. This work was supported by Institute of Information & Communications Technology Planning & Evaluation (IITP) grant funded by the Korean Government (MSIT) under Grant 2016-0-00185. (Corresponding author: Sanggeun Jeon.) The authors are with the School of Electrical Engineering, Korea University, Seoul 02841, South Korea (e-mail: [email protected]).

    Funding Information:
    This work was supported by Institute of Information & Communications Technology Planning & Evaluation (IITP) grant funded by the Korean Government (MSIT) under Grant 2016-0-00185. The authors would like to thank K. Choi from Seoul National University for W-band spectral measurements.

    Publisher Copyright:
    © 2019 IEEE

    Keywords

    • Injection-locked frequency octupler (ILFO)
    • Multiplication factor
    • Push-push oscillator
    • W-band frequency

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Electrical and Electronic Engineering

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