HIGH FREQUENCY ANTENNA UNIT AND WIRELESS COMMUNICATION UNIT USING THE SAME

• Main Authors: INOUE KENJI, KATSUMATA SADAYUKI, HIRABAYASHI KAZUO, TERADA KENJI
• Format: Patent
• Language: English; Japanese
• Published: 03.06.2021
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION

To provide a high frequency antenna unit capable of effectively suppressing a transmission wave output by one of a plurality of transmission/reception devices mounted on the same wireless communication unit from being wraparound and received by another transmission/reception device.SOLUTION: A group of transmission/reception antennas consisting of a transmission antenna and a reception antenna each of which is connected to the same transmission/reception device is fixedly attached to a support frame at predetermined intervals in a predetermined arrangement direction. Then, since a distance between feeding points of high-frequency antennas attached to a pair of antenna support plates adjacent to each other in the arrangement direction is secured to 1/2 wavelength or more of a transmitted/received wave in the arrangement direction, the isolation between the transmission antenna and the reception antenna between two groups of transmission/reception antennas arranged adjacent to each other can be enhanced.SELECTED DRAWING: Figure 14 【課題】 同じ無線通信ユニットに複数搭載される送受信装置の１つのものが出力する送信波が、他の送受信装置により回り込み受信されることを効果的に抑制できる高周波アンテナユニットを提供する。【解決手段】 各々同一送受信装置に接続される送信アンテナ及び受信アンテナからなる送受信アンテナ群が支持枠体に対し予め定められた配列方向に所定の間隔にて固定的に取り付けられる。そして、その配列方向において互いに隣接する１対のアンテナ支持板に取り付けられた高周波アンテナの、該配列方向における給電点間の距離を送受信波の１／２波長以上に確保したので、互いに隣接配置される２つの送受信アンテナ群間の送信アンテナと受信アンテナとの間のアイソレーションを高めることができる。【選択図】 図１４