What does antenna gain mean?


Release time:

2019-09-27

What does antenna gain mean?

The direction map of the omnidirectional antenna in the true sense should be the star
However, the omnidirectional antennas currently in use are actually only circles on the horizontal plane and long strips on the vertical plane.
From the three-dimensional understanding is a bagel
The directional antenna is a big pear
From the perspective of energy conservation, it is explained that if the energy of the star is compressed in the doughnut, of course, gain will appear. The antenna is a passive device that has no amplification effect. It is because the arrangement of vibrators inside the antenna makes the original all-round emission concentrated in a certain area that there will be superposition effect, making the antenna produce gain.
So the more compressed, the higher the antenna gain.

Keywords: digital TV antenna, vehicle antenna, RF line/feeder, suction cup antenna