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10.1 Antennas
Monopole Antennas
Monopole Antennas, such as the ones mounted beneath the Vector and Scorpion fuselage, consist of an antenna monopole.
As a single pole antenna is theoretically and physically impossible, a ground plane needs to be created. This is achieved by
connecting the ground of the antenna to (in this case) a metallic foil, with an appropriately sized surface area.
The advantages are their small size, but the disadvantage is their requirement of a ground plane. They have an omnidirectio-
nal radiation pattern.
Dipole Antennas
Dipole antennas are a simpler form of antennas. Two wires form an electrical dipole. If mounted vertically, the radiation pattern
is omnidirectional, highest gain on the horizontal plane, and lowest gain directly above the antenna.
The handheld ground radios use two dipole antennas. This is a good choice for easy handling and transport.
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