Dome-type EW Antenna 700-850 MHz – Quadrifilar from BlueBird is a specialized radio-electronic device for creating dome protection against unmanned aerial vehicles. The antenna is designed as part of EW systems and is optimized for operation in the 700-850 MHz frequency range, making it an effective solution for blocking and jamming drone communications in the upper hemisphere.
Structurally, it is a dome-shaped quadrifilar antenna with circular polarization, which receives and transmits signals with both horizontal and vertical polarization. Transmit power up to 50 W ensures stable operation in interference conditions, while compact dimensions and a durable casing allow the antenna to be installed in the field without additional protection from branches or mechanical impacts. The product belongs to the category: EW Jammers > Quadrifilar Antennas.
Specifications:
| Parameter | Value |
|---|---|
| Frequency | 700-850 MHz |
| Gain | 2 dBi |
| Polarization | Circular |
| Bandwidth | 700-850 MHz |
| Input Impedance | 50 Ohm |
| Power | 50 W |
| Connector | N male |
| Operating Temperature | -40℃ ~ +85℃ |
| VSWR | 700 – 1.3 / 850 – 1.6 |
| Dimensions | 230 x 220 x 220 mm |
| Weight | 800 g |
Package Contents:
- Dome antenna for 700-850 MHz frequency – 1 pc.
The BlueBird antenna is designed for integration into mobile and stationary EW systems where an all-around (dome) signal suppression zone is critical. The quadrifilar design ensures the formation of a protective electromagnetic dome from above, making it difficult to bypass protection from altitude. Although such antennas sometimes have a shorter suppression range compared to collinear counterparts, their advantage in providing comprehensive space control makes them indispensable for defensive tasks.
The durability and temperature resistance of the casing allow the antenna to operate in a wide range of climatic conditions from -40℃ to +85℃. The 50 Ohm input impedance and standard N male connector simplify connection to modern EW equipment. The VSWR values for 700 MHz and 850 MHz frequencies demonstrate compliance with technical requirements for stable operation in the specified range.
Choose this quadrifilar dome antenna if you need a compact, reliable, and certified solution for creating overhead directional protection against UAVs in electronic warfare systems. The manufacturer BlueBird guarantees compliance with specifications and stable operation in military and specialized applications.
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