Whip antennas, Collinear array antennas – ProSoft Technology RLX2-IHNF-WC User Manual
Page 185

RLX2 Industrial Hotspot Series
ProSoft Technology, Inc.
Page 185 of 212
June 15, 2015
linear polarizations oriented at 45° to each other, half of the possible maximum power
will be received.
Whip Antennas
Use a 1/2 wave straight whip or 1/2 wave articulating whip (2 dBi) antenna with RLX2
radios. These antennas are the most common type in use today. Such antennas are
approximately 5 inches long, and are likely to be connected to a client radio (connected
directly to the radio enclosure). These antennas do not require a ground plane.
Articulating antennas and non-articulating antennas work in the same way. An
articulating antenna bends at the connection.
Collinear Array Antennas
A collinear array antenna is typically composed of several linear antennas stacked on
top of each other. The more stacked elements it has, the longer it is, and the more gain
it has. It is fed in on one end.
The antenna pattern is torroidal. Its azimuthal beamwidth is 360° (omnidirectional). Its
vertical beamwidth depends on the number of elements/length, where more elements