C/D/E Band Airborne Blade Antenna
700 to 2700 MHz
SKU: 21-40-49
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The 21-40-49 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, 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 has an aluminum alloy base plate with a centrally mounted, N-type female coaxial connector.
- 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
| 21-40-49 | |
| Model # | 21-40-49 |
| Brand | Cooper Antennas |
| Frequency | 700 - 2700 MHz |
| Gain (average) | +2 dBi |
| VSWR | ≤ 2.0:1 |
| Impedance (nominal) | 50 Ohms |
| Power | 200 Watts CW, 2k Watts peak |
| Polarization | Vertical |
| Radiation | Nominally omni-directional in azimuth, similar to stub in elevation |
| Antenna RF Connector | N Female |
| Element Height | 2.8 inches (71 mm) |
| Weight | 0.44 lbs (0.2kg) max |
| Fixing Holes | 6 x Ø 0.203 inch (5.2mm) holes, counter bored Ø 0.43 inch (10.9mm) |
| Gasket (sold separately) | Part number 69-40-49 |
Finish
- Urethane Lusterless Black
- Other finish options are available.
- Please specify finish required when ordering.
Datasheet:
