700-1050 MHz Dome-Type EW Antennas – Quadrifilar (3-in-1) from BlueBird — a specialized tactical solution for protecting electronic warfare systems from enemy drones. The dome design creates an effective "electromagnetic dome" that prevents circumvention of protection from above and increases the reliability of drone countermeasures in complex tactical conditions.
Advantages and Purpose
This set of quadrifilar antennas provides circular polarization, ensuring stable reception and suppression of both horizontally and vertically polarized signals. The compact dome shape reduces the risk of interference from surrounding objects (e.g., tree branches) and facilitates integration into protective nodes. The device is designed to withstand powers up to 100 W, with each component having a nominal power of 50 W, making it a reliable element of modular EW systems.
Key Technical Parameters
| Frequency | 700-850 MHz | 800-950 MHz | 900-1050 MHz |
|---|---|---|---|
| Gain | 2 dBi | 2 dBi | 2 dBi |
| Polarization | circular | circular | circular |
| Bandwidth | 700-850 MHz | 800-950 MHz | 900-1050 MHz |
| Input Impedance | 50 Ohm | 50 Ohm | 50 Ohm |
| Power | 50 W | 50 W | 50 W |
| Connector | N male | N male | N male |
| Operating Temperature | -40℃~+85℃ | -40℃~+85℃ | -40℃~+85℃ | VSWR | 700 – 1.3 / 850 – 1.6 | 1.4 (across the band) | 900 – 1.4 / 1050 – 1.3 |
| Dimensions | 230 x 220 x 220 mm | 230 x 220 x 220 mm | 230 x 220 x 220 mm |
Kit Contents (3-in-1)
- Quadrifilar Frequency: 700-850 MHz – 1 pc.
- Quadrifilar Frequency: 800-950 MHz – 1 pc.
- Quadrifilar Frequency: 900-1050 MHz – 1 pc.
The operating frequency range covers 700 to 1050 MHz, making the kit versatile for various tactical EW tasks. The combination of circular polarization, robust mechanical design, and ability to operate in a wide temperature range (-40℃ to +85℃) makes the product recommended by military experts as an effective counter-drone measure. Product type: EW > Quadrifilar Antennas. By choosing the BlueBird kit, you get a compact, durable, and technically refined protective module for integration into electronic warfare systems, suitable for field, stationary, and mobile platforms.
Operational features: easy installation in protection nodes, compatibility with coaxial cables with N male connectors, resistance to mechanical stress, and stable operation in changing weather and temperature conditions. Considering the nominal power of each component at 50 W and a maximum assembly value of up to 100 W, the antennas provide a balance between compactness and effectiveness in suppressing target signals.
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