Array of patch-antennas with meandering-gaps on optical modulator for wireless millimeter-wave beam-steering

Yusuf Nur Wijayanto, Atsushi Kanno, Hiroshi Murata, Tetsuya Kawanishi, Naokatsu Yamamoto, Yasuyuki Okamura

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    An array of patch-antennas with meandering-gaps on an optical modulator is proposed for wireless millimeter-wave beam-steering through high-speed radio-over-fiber systems. Wireless millimeter-wave can be received by the array of patch-antennas and directly modulated to lightwave by the optical modulator. The wireless millimeter-wave can be steered using the meandering-gaps at the patch-antennas by controlling interaction between millimeter-wave and lightwave electric fields in electro-optic modulation. The basic operation and analysis of the proposed device are discussed. In the experiment, 5 × 5 antenna array in 40 GHz millimeter-wave bands was designed and realized for device characterization and demonstration to wireless millimeter-wave beam-steering. There were five variations of wireless millimeter-wave beam-steering for one-dimensional in xz- or yz-planes that can be obtained with wireless millimeter-wave steerable beams of about ±30°. Additionally, 25 variations of wireless beam-steering can be obtained for two dimension in xyz-space through orthogonal optical modulation. The proposed device is promising to be applied in millimeter-wave/tera-hertz bands for future directional wireless communication and sensing with high-speed and high-resolution operation.

    Original languageEnglish
    Pages (from-to)1-7
    Number of pages7
    JournalInternational Journal of Microwave and Wireless Technologies
    DOIs
    Publication statusAccepted/In press - 2016 Mar 16

    Keywords

    • Antennas and propagation for wireless systems
    • Microwave photonics

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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