Dom> Blog> [Photo] quarter wave ground antenna

[Photo] quarter wave ground antenna

November 13, 2023



The picture shows the structure of the antenna. This is a planar grounded antenna. This antenna consists of a vertically excited 1/4 wavelength vibrator. The vibrator is related to an artificial ground. The artificial ground consists of four horizontally placed, and It is electrically composed of a grounded radiation rod. The angle between the radiation rod and the ground is different. The impedance presented by the antenna is also different. When it is 45 degrees from the ground plane, the impedance is 50 ohms. The vertical one is connected to the cable core, and the bottom four are connected to the shield of the cable and are connected together.

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