An Antenna is a transducer, which converts electrical power into electromagnetic waves
and vice versa.
An Antenna can be used either as a transmitting antenna or a receiving antenna.
A transmitting antenna is one, which converts electrical signals into
electromagnetic waves and radiates them.
A receiving antenna is one, which converts electromagnetic waves from the
received beam into electrical signals.
In two-way communication, the same antenna can be used for both transmission
and reception.
Antenna can also be termed as an Aerial. Plural of it is, antennae or antennas. Now-a-
days, antennas have undergone many changes, in accordance with their size and shape.
There are many types of antennas depending upon their wide variety of applications.
