The Q189 Series antennas are amplitude and phase tracked on a 100% basis as matched sets, ensuring interchangeability at the system level. In addition, the axial ratio is extremely low (considering the low frequency cutoff versus the nominal 2-inch diameter of the antenna) over the majority of a hemisphere. Together, these characteristics make the Q189 Series of antennas an ideal element for array and direction-finding (DF) applications.
Q189 Series Antenna Specifications
| Frequency range | 2.0 - 18.0 GHz |
| VSWR | 2.5:1 nom, 3.0:1 max |
| Gain | See graph |
| Polarization Q189-1 Q189-2 |
RHCP LHCP |
| Phase tracking | Per customer request |
| Beamwidth | 80° nom |
| Axial ratio boresight | 3 dB max |
| Beam squint | ±5° max typical |
| Power handling | 1 watt CW |
| Connector | SMP |
| Weight | 0.25 lbs max |
| Finish | Natural |
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