ANTENNA FOR TRANSMITTING AND RECEIVING BOTH POLARIZATION WAVES

PROBLEM TO BE SOLVED: To provide an antenna for transmitting and receiving both polarization waves that has a simpler configuration.SOLUTION: In an antenna for transmitting and receiving both polarization waves, any two of a dipole antenna, an inverted-F antenna, and an inverted-L antenna whose resonance frequencies are adjusted to be substantially the same as each other are used, and their open end sides are arranged orthogonally at a predetermined distance. An EM power feeding part is arranged so as to be opposed to each of both open end sides at a predetermined interval, and a power feeding line is electrically connected with the EM power feeding part. In this way, due to the antenna for transmitting and receiving both polarization waves according to this embodiment, electromagnetic one-point power feeding from both open end sides of two orthogonal linear antennas whose resonance frequencies are substantially the same as each other is achieved, and thereby, the power feeding part and the high-frequency circuit can be simplified, and a vertical polarization wave and a horizontal polarization wave can be transmitted and received by a simpler configuration. By using the inverted-F antenna and the inverted-L antenna, the antenna for transmitting and receiving both polarization waves can be miniaturized, and a central part of a ground conductor plate can be cut off, and an electronic circuit can be provided.SELECTED DRAWING: Figure 1 【課題】より簡単な構成の両偏波送受用アンテナを提供する。【解決手段】両偏波送受用アンテナでは、共振周波数が実質同一に調節されたダイポールアンテナ、逆Ｆアンテナ、逆Ｌアンテナの何れか２つを使用し、その開放端側を所定距離隔てて直交配置する。両開放端側のそれぞれと、所定間隔をおいてＥＭ給電部を対向配置し、このＥＭ給電部に給電ラインを電気的に接続する。このように、本実施形態の両偏波送受用アンテナによれば、共振周波数が実質同一である２つの直交する線状アンテナの両開放端側から、電磁的な１点給電を実現することで、給電部と高周波回路を簡略化することができ、より簡単な構成で垂直偏波と水平偏波の送受信が可能になる。逆Ｆアンテナ、逆Ｌアンテナを用いることで、両偏波送受用アンテナを小型化することができ、また、地導体板の中央部を切り取ったり電子回路を設けることができる。【選択図】図１