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Q151-1-1 Spiral Antenna

The Q151-1-1 antennas are amplitude tracked on a 100% basis versus factory standards, ensuring interchangeability at the system level. In addition, the axial ratio is extremely low (considering the low frequency cutoff versus the nominal 4-inch diameter of the antenna) over the majority of a hemisphere. Together, these characteristics make the Q151-1-1 antenna an ideal element for array and direction-finding applications.

SPECIFICATIONS

ELECTRICAL
Frequency Range 1.0 - 18.0 GHz
VSWR
1-2 GHz 4.0:1 maximum
2-3 GHz 3.5:1 maximum
3-18 GHz 3.0:1 maximum
Gain -6 to +2 dBic
Gain tracking
1-15 GHz Within the 2 dB beamwidth: up to ±1.7 dB
15-18 GHz Within the 2 dB beamwidth: up to ±1.7 dB
Polarization LHCP
Beamwidth 80 degrees nom
Axial ratio boresight
15-18 GHz ±45 degrees
Beam squint ± 5 degrees maximum
Power handling 5 W CW
MECHANICAL
Connector Type PTNC female UG-89
Weight 0.5 lbs
Finish Gray, color 36231 per FED-STD-595

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