ANTENNA ADJUSTING METHOD AND COMMUNICATION SYSTEM

• Main Authors: SHIMIZU TATSUYA, IIZUKA MASATAKA, TSUBOI HIDEYUKI, TSUCHIYA TAKAHIRO
• Format: Patent
• Language: English; Japanese
• Published: 21.12.2017
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION

PROBLEM TO BE SOLVED: To adjust transmission and reception directions of OAM waves.SOLUTION: An array antenna 13 of a communication device 10 transmits an OAM (Orbital Angular Momentum) wave. An array antenna 21 of a communication device 20 receives the OAM wave. An axial displacement estimation and control unit 26 finds an angle of displacement in a radio wave radiation direction from an array antenna 13 on the basis of phases of the OAM wave received by a plurality of respective antenna elements 22 included in the array antenna 21, and separately adjusts a direction in a vertical direction of the array antenna 13 and a direction in a horizontal direction of the array antenna 13 on the basis of the found angle.SELECTED DRAWING: Figure 1 【課題】ＯＡＭ波の送受信方向を調整する。【解決手段】通信装置１０のアレイアンテナ１３は、ＯＡＭ（Orbital Angular Momentum）波を送信する。通信装置２０のアレイアンテナ２１は、ＯＡＭ波を受信する。軸ズレ推定・制御部２６は、アレイアンテナ２１が有する複数のアンテナ素子２２のそれぞれにおいて受信したＯＡＭ波の位相に基づいて、アレイアンテナ１３からの電波放射方向のズレの角度を求め、求められた角度に基づいてアレイアンテナ１３の垂直方向の向きの調整とアレイアンテナ１３の水平方向の向きの調整とを個別に行う。【選択図】図１