Beam steering array antenna controlled by optical wavelength

Keizo Inagaki, Takashi Ohira, Tetsuya Kawanishi, Masayuki Izutsu

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We developed a beam forming network (BFN) for an array antenna with 5 elements radiating 3 independently steerable beams, and measured the phase shift characteristics. The main part of the BFN is integrated as a single photonic integrated circuit (PIC) chip using birefringent Lithium Niobate (LN) waveguide. The phase distribution among the 5 element antennas is controlled by the wavelength tuning of an optical RF source. Highly linear phase shift characteristics with the sensitivity of 8.24°/nm are achieved. By using 3 tunable optical RF sources allocated to different wavelength range, the PIC chip can generate feeding signals for 3 independently steerable beams.

Original languageEnglish
Pages (from-to)1221-1227
Number of pages7
JournalIEICE Electronics Express
Volume8
Issue number15
DOIs
Publication statusPublished - 2011 Aug 10
Externally publishedYes

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Keywords

  • Birefringence waveguide
  • Independently steerable multibeam
  • Optically controlled phased array antenna
  • Photonic integrated circuit
  • Wavelength steering

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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