Lightweight IFF Antenna

1020 - 1100 MHz

SKU: 21-40-21

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Lightweight IFF Antenna

The 21-40-21 is a very lightweight “all metal” IFF antenna suitable for helicopters and subsonic aircraft. The antenna is constructed such as to exclude internal cavities to ensure complete environmental sealing and freedom from moisture ingress and entrapment.

The diamond shape blade contributes to a very low radar cross section and the sleeved monopole design produces a highly omni-directional azimuth radiation diagram 

  • Lightweight
  • Rugged Metal Construction
  • Small footprint
  • Low VSWR
  • Up to 1 kW peak power
  • Designed to MIL-STD-810 Environmental conditions
  • Low Radar cross section (RCS)
21-40-21
Model # 21-40-21
Brand Cooper Antennas
Frequency 1020 - 1100 MHz 
Gain Typically +2.5 dBi 
VSWR ≤ 1.5:1 
Impedance (nominal) 50 Ohms
Power 1kW peak , 100 Watts mean
Polarization Vertical
Radiation Omni-directional in azimuth.
Antenna RF Connector  TNC Female
Height 0.25 lbs (0.114kg) 
Weight 1.85 inches (47mm)
Fixing Holes 4 x 0.201” (5.1 mm) 0.5” (12.7mm) spot face

Finish

  • White urethane to DTD 5555
  • Other finish options are available.
  • Please specify finish required when ordering.
Datasheet:

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