How to make car intercom antenna

The interphone and antenna are fed by cables, and the antenna design is related to the car shell. This kind of antenna is generally installed on the roof or perforated.

In recent years, there are such antennas with glass or hidden in the car. The key is that the adjustment and installation position of the standing wave ratio directly affect the antenna radiation diagram. The standing wave ratio is generally directly related to the antenna design, cable and connector. Users should pay attention to it when selecting.

The radiation pattern is related to the installation position of the antenna. Ideally, it is best to install it in the center of the roof, because the reflective floor of the antenna is symmetrical and uniform, and the antenna pattern will not be distorted. If it is installed on one side, the antenna radiation pattern is easy to change.