ANTENNA DEVICE

• Main Author: MATSUURA TATSUYA
• Format: Patent
• Language: English; Japanese
• Published: 07.08.2023
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

To provide a compact antenna device that supports multiple frequency bands.SOLUTION: An antenna device includes a GND plate 11, a power supply unit 15 that supplies power, an opening 12 arranged in the GND plate 11, a feeder conductor 14 connected to one side of the opening 12 and the power supply unit 15, respectively, a split portion 13 having two conductors arranged to face each other inside the opening 12 and each connected to the outer circumference of the opening 12, and a conductor extension portion that in which at least one of the two conductors arranged to face each other is connected to both ends of the conductor and extends from the connected position in a direction different from the direction in which the conductor extends, and at least a part of the conductor extension portion is arranged to face the outer peripheral side of the opening 12.SELECTED DRAWING: Figure 1 【課題】複数の周波数帯に対応し、かつ、小型化されたアンテナ装置を提供する。【解決手段】アンテナ装置は、ＧＮＤ板１１と、給電を行う給電部１５と、ＧＮＤ板１１に配置された開口部１２と、開口部１２の一辺および給電部１５にそれぞれ接続する給電導体１４と、開口部１２の内部で互いに対向するように配置され、それぞれが開口部１２の外周と接続する２本の導体を有するスプリット部１３と、互いに対向するように配置した２本の導体のうち少なくとも１本は、導体の両端に接続され、接続された位置から導体の延在方向とは異なる方向に延在する導体延長部と、を備え、導体延長部の少なくとも一部は、開口部１２の外周の辺と対向して配されている。【選択図】図１