40
5.3 SLH 12 Stub Loaded Helix Antenna
Features
•
Light weight – slim profile
•
Patented reduced size design
•
Watertight Ultrasonic and O-ring sealed
•
Circular
polarization
Description
The SLH 12 Stub Loaded Helix is a compact
helix antenna with performance characteristics
similar to conventional helix but only about one-
quarter the size. This significant size reduction
is obtained through a unique patented antenna geometry that maximizes
antenna performance and efficiency while minimizing size. The SLH 12
utilizes circular polarization to minimize the effects of multipath interference.
It is housed in a rugged radome that protects the antenna from the weather
as well as providing an aesthetically pleasing appearance. The SLH 12 uses
a cupped reflector to provide greater gain and a higher front-to-back ratio than
the standard SLH 10 helix for those installations where additional gain is
needed or more directivity is required to reduce interference. A variety of
mounting options are available.
Specifications
Frequency
2.3 – 2.6 GHZ
Gain
12 dBic typical (13 dBic average)
Beamwidth
40
°
(– 3dB)
Polarization
Right-hand circular
Connector
Reverse-thread TNC
Nominal impedance
50 Ohm
VSWR
1.7:1 Max
RF power average
10 W
Length
6.5”
Weight
<1 lb.
Radiation pattern of SLH 12
Stub Loaded Helix