C/D/E Band Airborne Blade Antenna

900 to 2500 MHz

SKU: 21-40-46

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C/D/E Band Airborne Blade Antenna

The 21-40-46 is an extended frequency C/D/E (L-Band) airborne blade antenna designed for supersonic aircraft and covering data link as well as Tacan and IFF frequencies. It is a direct footprint replacement for certain currently used UHF/Lband antennas.

Electrical design is based on a 2-dimensional, shunt-grounded discone which is of high efficiency and provides omnidirectional azimuthal radiation.

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

The blade is built into a contoured aluminum alloy base collar and has a centrally mounted, TNC male coaxial connectors.

Different base configurations can be provided. 

  • Suitable for Mach 2.5
  • Low profile, diamond shaped blade
  • Designed to meet MIL-STD-810
  • Fully Environmentally sealed
  • Base contoured to suit aircraft skinline
  • Grounded for lightning protection
  • Lossless matching—high RF efficiency
  • Omnidirectional radiation pattern 
21-40-46
Model # 21-40-46
Brand Cooper Antennas
Frequency 900 - 2500 MHz 
Gain (average) +2.5 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 Male
Element Height 1.53 inches (38.9mm)
Weight 1.66 lbs (0.75kg) including contoured aluminium base

Finish

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

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