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Dome-type antenna – quadrifilar 700–850 MHz for EW systems

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Dome-type antenna – quadrifilar 700–850 MHz for EW systems

Dome-type antenna – quadrifilar 700–850 MHz for EW systems

The 700–850 MHz quadrifilar antenna is a dome-shaped antenna for EW systems designed to counter FPV drones, featuring circular polarization and a power handling capability of 50 W.

In stock

106 $
* with VAT

89 $
* excluding VAT

Get a price excluding VAT
with the presence of an end-user certificate

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* Price excluding VAT for:

government customers in the defense sector
with an end-user certificate,
where the final recipient of the goods is law enforcement agencies,
Ministry of Defense, Armed Forces of Ukraine, state customers in the defense sector.
The procedure for completing a VAT-exempt purchase for military personnel is provided in the "Frequently Asked Questions" section at the bottom of the page. If you still have questions after reviewing this information, please contact a BlueBird Tech manager.

Technical characteristics

Parameter	Specification
Nominal frequency	700-850 MHz
Gain	6 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
Weight	800 g
Dimensions	230 x 220 x 220 mm

What kind of device is this?

Dome-type antenna – quadrifilar 700–850 MHz for EW by BlueBird Tech is a specialized dome antenna with circular polarization, designed for effective counteraction against FPV drones within the specified frequency range. Thanks to its unique quadrifilar design, the antenna forms an “electromagnetic dome” that provides comprehensive protection and prevents hostile unmanned aerial vehicles from bypassing the system from above.

Functions of the dome-type antenna – quadrifilar 700–850 MHz by BlueBird Tech

Dome-shaped protection over the target object, blocking signals from above.
Effective suppression of FPV drone signals within the specified frequency range.
Stable operation thanks to circular polarization.
Ability to operate in complex electromagnetic environments.
Integration into mobile and stationary EW systems.

Operating principle of the dome-type antenna – quadrifilar 700–850 MHz by BlueBird Tech

The antenna is designed in a quadrifilar dome structure and operates in the 700–850 MHz frequency range.
Thanks to circular polarization, a compact design, and its operating parameters, the antenna maintains stable performance within the relevant technical systems.

By purchasing the dome-type antenna – quadrifilar 700–850 MHz in the standard branded configuration, you will receive:

Dome-type antenna – quadrifilar 700–850 MHz — 1 pc.

Delivery terms for the dome-type antenna – quadrifilar 700–850 MHz

Delivery is carried out exclusively via Nova Poshta. Other delivery services are not used.

Warranty for the dome-type antenna – quadrifilar 700–850 MHz

Warranty for the dome-type antenna – quadrifilar 700–850 MHz is 12 months from the date of purchase.

Warranty service is provided by the manufacturer’s service center – BlueBird Tech.

The warranty does not cover defects resulting from:

mechanical damage (impacts, drops, submersion in water, housing deformation, etc.);
improper or careless handling of the device;
violation of operating, transportation, or storage requirements;
unauthorized modification or tampering with the device structure.

Return and exchange terms for the dome-type antenna – quadrifilar 700–850 MHz

The company processes returns and exchanges in accordance with applicable legal requirements.

Return terms

Returns are possible within 14 days after receipt (for goods of proper quality).

Return shipping is arranged in accordance with prior agreement.

According to applicable legislation, you may return or exchange a product of proper quality if:

The product has not been used and shows no signs of use by the consumer, such as scratches, chips, abrasions, stains, etc.
The product is fully complete and the original factory packaging is preserved.
The product retains its commercial appearance and consumer properties.

Payment methods for the dome-type antenna – quadrifilar 700–850 MHz

Full payment

You pay for the order in full and pick it up at the post office.

Why users choose the dome-type antenna – quadrifilar 700–850 MHz

Dome coverage over the target object.
Circular polarization.
Stable operation in complex conditions.
Ukrainian development by BlueBird Tech.

Dome coverage over the target object. Circular polarization. Stable operation in complex conditions. Ukrainian development by BlueBird Tech.

BlueBird Tech is a Ukrainian manufacturer of defense engineering electronics that develops and produces serial defense solutions. Our goal is to create technologies that protect lives and ensure Ukraine’s advantage on the battlefield.
To learn more about us and our journey, please visit the “About Us” page.

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The dome-type antenna – quadrifilar 700–850 MHz is used in EW systems to suppress FPV drone signals.

For military units, to create dome-shaped protection over positions and equipment against UAVs.

For volunteer organizations, to enhance existing EW solutions and improve the effectiveness of FPV drone countermeasures in field conditions.

For critical infrastructure facilities, to ensure protection of territories and stable operation of systems in areas at risk of UAV use.

Dome-type antenna – quadrifilar 700–850 MHz for EW by BlueBird Tech

main indicators

Frequency range: 700-850 MHz
Power: 50 W
Weight: 800 g

Do you have any questions about the dome-type antenna – quadrifilar 700–850 MHz?

Call us – we will explain the technical details and advise you on how to integrate the quadrifilar 700–850 MHz antennas into your existing protection system. Phone: +38 073 864 04 07 For safety, please use only the official communication channels listed on this website.

Phone Number

+38 073 864 04 07

Please note

that our original BlueBird Tech devices can only be purchased from us, on the manufacturer’s official website: blue-bird.tech

and on the official websites of our partners: flasharmy.com.ua, market.brave1.gov.ua, bezpeka.pro

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FAQ

What is an electronic warfare (EW) antenna, and what is it used for?

An EW antenna is a component of an electronic warfare system used to transmit jamming signals within a specific frequency range. Such antennas are designed to affect UAV control channels, telemetry links, and data transmission systems.

What antennas are used in EW systems?

EW systems use quadrifilar, sector, omnidirectional, and other specialized antennas operating across different frequency ranges. The choice of antenna type depends on the mission, the required coverage sector, and the types of UAVs the system is designed to counter.

What is the difference between an omnidirectional and a sector antenna?

An omnidirectional antenna radiates a signal in a full 360-degree pattern, providing circular coverage around itself. A sector antenna concentrates the signal within a defined sector, enabling higher efficiency and stronger performance in a specific direction.

What are quadrifilar antennas used for?

Quadrifilar antennas are used in dome-type electronic warfare systems to create a wide coverage area. Thanks to circular polarization, they ensure stable performance against UAVs regardless of their orientation in space.

How to choose an antenna for an EW system?

When selecting an antenna, it is important to consider the operating frequency range, target type, system use case, and required coverage area. It is also essential to take into account polarization type, gain level, and allowable power handling.

What frequencies do BlueBird Tech EW antennas support?

Depending on the model, BlueBird Tech antennas operate across different frequency ranges from 160 MHz to 6 GHz. This allows them to be used in systems designed to counter FPV drones, various types of UAVs, and other wireless communication systems.

What does antenna gain mean?

Antenna gain indicates how effectively an antenna focuses the signal in a specific direction. The higher the dBi value, the more efficiently the antenna concentrates radiated energy into a defined area.

Why is choosing the correct antenna polarization important?

Polarization affects system performance and interaction with the target. Depending on the type of UAV and the operational scenario, antennas with circular, vertical, or horizontal polarization may be used.

What antennas are suitable for dome-type EW systems?

Quadrifilar antennas with circular polarization are most commonly used in dome-type electronic warfare systems. They enable uniform coverage around an object and provide protection from multiple directions.

Can one antenna be used for different frequency ranges?

Each antenna is designed to operate within a specific frequency range. For maximum efficiency, it is necessary to use models whose specifications match the EW system’s operating parameters.

Where can I buy antennas for EW systems?

Antennas for EW systems, including quadrifilar, sector, omnidirectional, and specialized models, can be purchased through official BlueBird Tech channels. When selecting an antenna, it is important to consider the type of system, operating frequency range, and environmental conditions.