Directional Antenna

Directional antenna refers to a kind of antenna in which the electromagnetic wave is particularly strong when it is transmitted or received in one or several specific directions, while the electromagnetic wave is either zero or very small when it is transmitted or received in other directions. The purpose of using directional transmitting antenna is to increase the effective utilization rate of radiant power and increase the confidentiality. The main purpose of using directional receiving antenna is to enhance signal strength and anti-interference ability.