Millimeter-wave radar receiver using Z-Cut LiNbO<inf>3</inf> optical modulator with orthogonal-gap-embedded patch-antennas on low-κ dielectric material

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

    Research output: Contribution to journalArticle

    11 Citations (Scopus)

    Abstract

    A millimeter-wave radar receiver using a z-cut LiNbO<inf>3</inf> optical modulator with orthogonal-gap-embedded patch-antennas on a low-κ dielectric material is proposed. A millimeter-wave from a reflected radar signal can be received by the patch-antennas and converted directly to a light-wave through electro-optic modulation. A low-κ dielectric material is used as a substrate for improving antenna gain. Additionally, an interaction length between millimeter-wave and lightwave electric fields becomes long. As a result, large modulation efficiency can be obtained, which is proportional to sensitivity of the millimeter-wave radar receiver. Optical millimeter-wave radar beam-forming can be obtained using the proposed device with meandering-gaps for controlling interaction between millimeter-wave and lightwave electric fields in electro-optic modulation. Analysis and experimentally demonstration of the proposed device are discussed and reported for 40GHz millimeter-wave bands. Optical millimeterwave radar beam-forming in 2-D is also discussed.

    Original languageEnglish
    Pages (from-to)783-792
    Number of pages10
    JournalIEICE Transactions on Electronics
    VolumeE98C
    Issue number8
    DOIs
    Publication statusPublished - 2015 Aug 1

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    Keywords

    • LiNbO<inf>3</inf> optical modulator
    • Low-κ dielectric material
    • Millimeter-wave radar
    • Patch-antenna

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Electronic, Optical and Magnetic Materials

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