Dome-type Antennas 420-1050 MHz - Quadrifilar (4 in 1) from BlueBird — a specialized solution in the EW > Quadrifilar Antennas category for effective protection of electronic warfare systems against enemy UAVs. The design provides continuous dome coverage, which prevents circumvention of protection from above, creating a reliable electromagnetic barrier to protect critical objects and equipment.

The device operates in a wide frequency range from 420 to 1050 MHz with circular polarization, allowing effective reception and transmission of signals with different polarizations. The quadrifilar architecture ensures stable operation even in difficult conditions and in the presence of interference. Characteristics include power handling up to 100 W, while for each frequency variant, the technical table indicates a nominal power of 50 W.

Unlike some collinear solutions, the quadrifilar forms a true dome of coverage: although the suppression distance may be slightly shorter, the overall spatial effectiveness is higher, allowing objects to be protected from attacks from any direction. Compact dimensions (230 x 220 x 220 mm for all variants) and reduced sensitivity to mechanical obstacles (e.g., tree branches) increase operational reliability. The antennas are designed for operation in a temperature range from -40℃ to +85℃, ensuring resistance to climatic loads.

Technical Specifications

The Dome-type Antenna - Quadrifilar (4 in 1) includes:

• Quadrifilar Frequency: 700-850 MHz - 1 pc.

• Quadrifilar Frequency: 800-950 MHz - 1 pc.

• Quadrifilar Frequency: 900-1050 MHz - 1 pc.

• Quadrifilar Frequency: 420-750 MHz - 1 pc.

By choosing BlueBird antennas, you get a comprehensive solution verified by military experts: a reliable design with 420-1050 MHz dome coverage, circular polarization for universal interaction with signal sources, an N male connector for easy integration into existing systems, and technical parameters that meet EW needs: 2 dBi gain, 50 Ohm input impedance, nominal power of 50 W for each variant, and the ability to handle up to 100 W. The design is compact (230 x 220 x 220 mm) and withstands temperatures from -40℃ to +85℃, making it suitable for operation in various climatic conditions and on the battlefield.

This solution is optimal for protecting critical objects and equipment when uniform circular coverage from above, minimization of "blind spots," and increased mechanical stability compared to some other antenna types are required. The technical specifications and completeness allow for quick deployment of the protection system and its integration into existing EW equipment.

Other products in this category here Quadrifilar Antennas