Electronically steerable passive array radiator antennas for low-cost analog adaptive beamforming

Takashi Ohira, Koichi Gyoda

Research output: Contribution to conferencePaper

161 Citations (Scopus)

Abstract

Electronically steerable passive array radiator antennas are proposed for low-cost analog adaptive beamforming. Unlike conventional digital beamforming, they require only one transmitter or receiver. For 2-, 3-, 4- and 5-element antennas, beam and null steering characteristics are estimated by the method of moments. It is numerically shown that full 360-degree continuous azimuthal beam/null steering is possible by at least 4 elements. Also shown is that a directive gain of 9 dBi +/-1 dB and null depth of -50 dBi +/-10 dB are obtained by 5 elements, along with an associated return loss of better than 20 dB at the feeding port. Their drastically low cost and low power consumption could help to achieve adaptive antennas for portable wireless user terminals.

Original languageEnglish
Pages101-104
Number of pages4
Publication statusPublished - 2000 Jan 1
Event2000 IEEE International Conference on Phased Array Systems and Technology - Dana Point, CA, USA
Duration: 2000 May 212000 May 25

Other

Other2000 IEEE International Conference on Phased Array Systems and Technology
CityDana Point, CA, USA
Period00/5/2100/5/25

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Ohira, T., & Gyoda, K. (2000). Electronically steerable passive array radiator antennas for low-cost analog adaptive beamforming. 101-104. Paper presented at 2000 IEEE International Conference on Phased Array Systems and Technology, Dana Point, CA, USA, .