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→Half wave dipole
== Antenna Types and their Characteristics ==
=== Half wave dipole ===
[[File:HWDHWD3.pnggif|frame|thumb|Half wave dipole Antenna. Image reproduced from [https://commons.wikimedia.org/wiki/File:Dipole_antenna_standing_waves_animation_461x217x150ms.gif here]]]
* Dipole antennas are one of the earliest used antennas. The antenna used by Hertz in his experiment to transmit electromagnetic waves was also similar to dipole antenna. Its geometry is linear and its structure is, to simply speak, two wires in a line.
* As the name suggests, the length of this antenna is half of its wavelength at the desired frequency of operation. The signal is feeded to this antenna midway. It has an omnidirectional radiation pattern and linear polarization.