Adaptive array antenna transmitting / receiving apparatus and calibration method thereof

Abstract

Abstract Translated from Japanese (57)【要約】 【課題】 本発明は送信機の送信周波数と受信機の受信 周波数とが異なる適応アレーアンテナ送受信装置におい てアレーアンテナに接続される送信機及び受信機の双方 を個別にかつ簡易に校正可能にすることを目的とする。 【解決手段】 アレーアンテナに接続された受信機の受 信周波数ｆ２と送信周波数ｆ１とが異なる適応アレーア ンテナ送受信装置において少なくとも２つのアンテナ素 子１１から等距離の位置に配置された校正アンテナ３１ と受信周波数ｆ２と同じ周波数の信号を校正アンテナ３ １に印加する校正送信機３４と送信周波数ｆ１と同じ周 波数の信号を校正アンテナ３１を介して受信する校正受 信機３３と送信機１３からの信号を校正受信機３３で受 信して得られる第１の振幅・位相値と校正送信機３４か らの信号を受信機１４で受信して得られた第２の振幅・ 位相値とに基づいてブランチ間の校正値を求める校正演 算手段２５とを設けた。 (57) Abstract: The present invention provides an adaptive array antenna transmitting / receiving apparatus in which a transmitting frequency of a transmitter and a receiving frequency of a receiver are different, so that both a transmitter and a receiver connected to an array antenna are individually and simply arranged. The purpose is to be able to proofread. SOLUTION: In an adaptive array antenna transmitting / receiving apparatus in which a reception frequency f2 and a transmission frequency f1 of a receiver connected to an array antenna are different, a calibration antenna 31 arranged at a position equidistant from at least two antenna elements 11. And a signal having the same frequency as the reception frequency f2 1 and a first signal obtained by receiving a signal from the calibration receiver 33 through the calibration receiver 33 and a signal from the transmitter 13 via the calibration antenna 31 and a signal having the same frequency as the transmission frequency f1. And the second amplitude / phase value obtained by receiving the signal from the calibration transmitter 34 by the receiver 14. Calibration operation means 25 for obtaining a calibration value between branches based on the phase value.

Inventors

• 👤 Kentaro Nishimori
• 👤 健太郎 西森
• 👤 Keizo Cho
• 👤 敬三 長
• 👤 Taiji Takatori
• 👤 泰司 鷹取
• 👤 Toshikazu Hori
• 👤 俊和 堀

Bibliographic Details