||It has been suggested that this article be merged with
Directional antenna and Low-gain antenna. (Discuss) Proposed
since March 2013.| A high-gain antenna (HGA) is an antenna with
a focused, narrow radiowave beam width. This narrow beam width
allows more precise targeting of the radio signal - also known
as a directional antenna. Most commonly referred to during space
missions, these antennas are also in use all over Earth, most
successfully in flat, open areas where no mountains lie to
disrupt radiowaves. Principle of operation When transmitting, a
high gain antenna allows more of the transmitted power to be
sent in the direction of the receiver, increasing the received
signal strength. When receiving, a high gain antenna captures
more of the signal, again increasing signal strength. Due to
reciprocity, these two effects are equal - an antenna that makes
a transmitted signal 100 times stronger (compared to an
isotropic radiator), will also capture 100 times as much energy
as the isotropic antenna when used