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
| 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 |
| Connector | Type PTNC female UG-89 |
| Weight | 0.5 lbs |
| Finish | Gray, color 36231 per FED-STD-595 |
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