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Q211 Series Spiral Antenna

LHCP is standard, but RHCP is available as well. The antennas ideally suited to interferometer applications due to their unit-to-unit uniformity and broadband frequency characteristics.

The Q211 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 3” diameter of the antenna) over the majority of a hemisphere. Together, these characteristics make the Q211 Series of antennas an ideal element for array and DF applications.

Q211 Series Antenna Specifications

Electrical
Frequency range 2.0 - 10.0 GHz
VSWR 2.0:1 nom, 3.0:1 max
Gain See graph
Polarization
  Q211-1-1
  Q211-2-1
 
LHCP
RHCP
Phase tracking Per customer request
Beamwidth 80° nom
Axial ratio boresight 3 dB max
Beam squint ±5° max typical
Power handling 1 watt CW
Mechanical
Connector SMA
Weight 0.35 lbs max
Finish Natural

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