A Heterodyne-Scan Phased-Array Antenna

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

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


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
Issue number12
Publication statusPublished - 1999 Dec


  • Beam steering
  • heterodyne-scan
  • phased array antenna

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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