A Heterodyne-Scan Phased-Array Antenna

M. Kim, J. B. Hackei, A. L. Sailer, J. H. Hong

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)

    Abstract

    A new phased-array antenna system concept for narrow-band frequency beam steering is introduced. The phase shift between neighboring antennas in the array is controlled by changing the frequency of the signal traveling along fixed delay lines in a series feed network. Diode mixers are added before each antenna to convert the frequency of the control signal to a constant radiating frequency. A complete transmit system, using microstrip patch antennas, was built on a 4 × 6 in2 printed circuit board for an X-band demonstration. As the control frequency was swept from 15.1 to 18.4 GHz, the beam was steered from -52 to +46 degrees with the peak power density variation of 5 dB, mainly due to nonuniform mixer conversion loss at different control frequencies.

    Original languageEnglish
    Pages (from-to)535-537
    Number of pages3
    JournalIEEE Microwave and Guided Wave Letters
    Volume9
    Issue number12
    DOIs
    Publication statusPublished - 1999 Dec

    Keywords

    • Beam steering
    • heterodyne-scan
    • phased array antenna

    ASJC Scopus subject areas

    • General Engineering
    • General Physics and Astronomy

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