Most yagi-uda antennas have a 50° to 70° beam width.
Their high gain gives yagi antennas relatively good range.
Yagi’s have the most gain for their physical size compared to antennas like log periodics.
The yagi antenna’s design filters out almost all signal noise coming from the opposite direction.
What is a Yagi antenna used for?
A Yagi antenna, also known as a Yagi-Uda array or simply a Yagi, is a directional antenna commonly used in communications when a frequency is above 10 MHz. This type of antenna is popular among Amateur Radio and Citizens Band radio operators. It is used at some surface installations in satellite communications systems.
How far can a Yagi antenna reach?
In many cases a Yagi may cover up to 3 or more miles.
How does a Yagi antenna work?
The parasitic elements of the Yagi antenna operate by re-radiating their signals in a slightly different phase to that of the driven element. In this way the signal is reinforced in some directions and cancelled out in others. The Yagi antenna is able to provide very useful levels of gain and front to back ratios.
What are the advantages of a directional antenna?
Advantages of omni-directional antennas:
Ease of installation. Amplify cell signals from multiple carriers with different cell towers in multiple locations. Great for boosting 3G & 4G signal when building material is the main problem of cellular interruption.