Millimeter-wave electro-optic modulator using stacked patch-antennas embedded with micrometer-gap for radio-over-fiber system

Hiroshi Murata, Hironori Aya, Toshiyuki Inoue, Atsushi Sanada, Yusuf Nur Wijayanto, Atsushi Kanno, Tetsuya Kawanishi

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

We propose a new wireless electro-optic (EO) modulator using multi-layered stacked patch-antennas with a narrow gap for radio-over-fiber systems. This device uses a structure of vertically stacked patch antennas like the Yagi-Uda antenna, with an EO crystal and a low-dielectric-constant material hybrid substrate. The electric field for optical modulation and the patch length are increased by using the multi-layered antenna stacked structure. Therefore, the conversion efficiency from wireless to optical signals can be improved. In the analysis by use of HFSS, the operational frequency was shifted to the higher region by 7 GHz, and the modulation efficiency improved by 3.2 dB with the double stacking structure. In the experiments, the improvement of the modulation efficiency by 3.0 dB was verified, and the measured frequency response and directivity were in good agreement with the designed ones. The conversion of wireless 60 GHz band signals with QPSK modulation and the transfer of the converted signal over 1 km long fiber were also demonstrated.

本文言語English
ホスト出版物のタイトルEuropean Microwave Week 2017
ホスト出版物のサブタイトル"A Prime Year for a Prime Event", EuMW 2017 - Conference Proceedings; 47th European Microwave Conference, EuMC 2017
出版社Institute of Electrical and Electronics Engineers Inc.
ページ628-631
ページ数4
ISBN(電子版)9782874870477
DOI
出版ステータスPublished - 2017 12月 19
イベント47th European Microwave Conference, EuMC 2017 - Nuremburg, Germany
継続期間: 2017 10月 102017 10月 12

出版物シリーズ

名前European Microwave Week 2017: "A Prime Year for a Prime Event", EuMW 2017 - Conference Proceedings; 47th European Microwave Conference, EuMC 2017
2017-January

Other

Other47th European Microwave Conference, EuMC 2017
国/地域Germany
CityNuremburg
Period17/10/1017/10/12

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • 器械工学

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