カテゴリ: 論文誌(論文単位)グループ名: 【C】電子・情報・システム部門発行日: 2021/08/01タイトル(英語): Polarization Controlling Wireless Communication System Using FSK Radios著者名: 武井 健（（株）日立製作所 研究開発グループ）著者名(英語): Ken Takei (Research & development Group, Hitachi Ltd.)キーワード: 回転偏波，IoT，FSK，IEEE802.15.4g，90°ハイブリッド合成器，周波数ダイバシチ rotating polarization wave，Internet of Things，Frequency Shift Keying，IEEE802.15.4g，90 degree hybrid，frequency diversity要約(英語): The wireless system selecting polarization on which information signal is transferred to achieve better communication quality is proposed. The system uses a radio device that consists of a micro controller, two RF chips, a 90 degree hybrid coupler, and two perpendicular antennas to generate the rotating polarization wave where these RF chips are operated at the different local frequencies. Since the proposed system is compatibly operated with the conventional system that uses the same RF chip, it achieves a better quality by selecting both transmitting and receiving polarizations than the conventional system even if a mobile object is passing the radio devices or carrying it.本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.141 No.8 （2021） 特集：Smart Cityのためのモビリティ及び通信技術本誌掲載ページ: 897-902 p原稿種別: 論文／日本語電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/141/8/141_897/_article/-char/ja/
