C/D/E Band Airborne Blade Antenna

900 to 2500 MHz

SKU: 21-40-47

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C/D/E Band Airborne Blade Antenna

The 21-40-47 is an extended frequency C/D/E (L-Band) airborne blade antenna designed for high performance aircraft and covering data link as well as TACAN and IFF frequencies. It is a direct footprint replacement for AT256 UHF Blade antennas. Electrical design is based on a 2-dimensional, shunt-grounded discone which is of high efficiency and provides nearly omnidirectional azimuthal radiation.

Mechanical design uses an advanced, glass-loaded thermoplastic radome with an integral radiating element, all foamed-in-place for structural and environmental integrity.

The blade is built into a contoured injection moulded base collar and has a centrally mounted, N-type female coaxial connector.

Different base configurations can be provided. 

  • Covers LINK 16, IFF, TACAN, JTIDS & other Data Links
  • Low profile, diamond shaped blade
  • Designed to meet MIL-STD-810
  • Fully Environmentally sealed
  • Grounded for lightning protection
  • Lossless matching - high RF efficiency
  • Omnidirectional radiation pattern
21-40-47
Model # 21-40-47
Brand Cooper Antennas
Frequency 900 - 2500 MHz 
Gain (average) +2 dBi 
VSWR ≤ 2.5:1 
Impedance (nominal) 50 Ohms
Power 200 Watts CW, 2k Watts peak
Polarization Vertical
Radiation Omni-directional in azimuth, similar To stub in elevation 
Antenna RF Connector  TNC Female
Operational Temperature  -54°C to +70°C 
Element Height  3.5 inches (89mm) 
Weight 0.8 lbs (0.37kg)
Fixing Holes 0.3 lbs (0.14kg)

Finish

  • Urethane Lusterless Black
  • Other finish options are available.
  • Please specify finish required when ordering.
Datasheet:

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