Active phased array antenna radiating second harmonic output wave

Minoru Sanagi, Kenji Yano, Kazuhiro Fujimori, Shigeji Nogi

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


In order to make the scanned radiation beam range wider, phased array operation of an active antenna radiating the second harmonic is studied. By numerical analysis of a coupled oscillator system modeling the active antenna array, it is shown that the variation of the phase difference of the second harmonic component between the oscillators reaches 2π when the oscillators are coupled only by the fundamental components. This value is twice that yielding the fundamental component. Through experiments using two- and four-element arrays, the results of the analysis are confirmed. The radiation beam of the second harmonic is successfully scanned in a wider range than that for the fundamental component.

Original languageEnglish
Pages (from-to)39-50
Number of pages12
JournalElectronics and Communications in Japan, Part II: Electronics (English translation of Denshi Tsushin Gakkai Ronbunshi)
Issue number4
Publication statusPublished - Apr 1 2006


  • Active antenna
  • Coupled oscillator system
  • Locking phenomena
  • Phased array
  • Second harmonic generation

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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