Wireless-Optical Signal Converter Utilizing Stacked-Patch Antennas and Electro-Optic Substrates

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

*この研究の対応する著者

研究成果: Conference contribution

抄録

We have proposed and developed a new wireless-optical signal converter utilizing stacked-patch antennas with a narrow gap and electro-optic (EO) crystal films for millimeter-wave radio-over-fiber systems. This converting device utilizes a structure of vertically stacked-patch antennas like the Yagi–Uda antenna, with a hybrid substrate composed of EO crystal films and low-dielectric-constant material plates. The electric field for wireless-optical signal conversion and the size of the patch antenna are increased by introducing the antenna and substrate 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 range by 7 GHz, and the optical modulation index was improved by 3.2 dB with the double-stacked structure. In the experiments, the operational frequency shift by 8 GHz and the modulation index improvement by 3.0 dB were verified successfully, 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Air Traffic Management and Systems III - Selected Papers of the 5th ENRI International Workshop on ATM/CNS, EIWAC 2017
編集者Tadashi Koga
出版社Springer Verlag
ページ219-232
ページ数14
ISBN(印刷版)9789811370854
DOI
出版ステータスPublished - 2019
イベント5th ENRI International Workshop on ATM/CNS, EIWAC 2017 - Nakano, Japan
継続期間: 2017 11 142017 11 16

出版物シリーズ

名前Lecture Notes in Electrical Engineering
555
ISSN(印刷版)1876-1100
ISSN(電子版)1876-1119

Conference

Conference5th ENRI International Workshop on ATM/CNS, EIWAC 2017
国/地域Japan
CityNakano
Period17/11/1417/11/16

ASJC Scopus subject areas

  • 産業および生産工学

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