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“Kumex” 2.1-2.7 GHz antenna

Q: 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.

Q: 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.

Q: 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.

Q: 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.

Q: 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.

Q: 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.

Q: 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.

Q: 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.

Q: 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.

Q: 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.

“Kumex” 2.1–2.7 GHz is an EW antenna for counter-FPV drone systems, featuring linear horizontal polarization and a power handling capability of up to 50 W.

In stock

159 $
* with VAT

132 $
* excluding VAT

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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

Параметр	Характеристика
Nominal frequency	2100–2700 MHz
Operating range	1800 – 3000 МГц
SWR	< 1.5
Polarization	Linear – horizontal
Impedance	50 Ohm
Gain	up to 8 dBi
Radiation pattern	Sectoral (≈60°)
Connector	SMA female
Material	Aluminum, copper, ABS plastic
Temperature range	−40…+80 °C
Weight	200 g
Dimensions	Width: 150 × 150 mm, Height: 92 mm

What kind of device is this?

The “Kumex” 2.1–2.7 GHz antenna by BlueBird Tech is a broadband directional antenna with horizontal linear polarization, designed to operate within the 2100–2700 MHz frequency range. It forms a directed signal that ensures uniform, stable coverage of the operational area while also enabling effective performance across communication, control, and data transmission channels. It is used in mobile and stationary EW systems to generate radio interference and suppress signals within a specified frequency range.

Functions of the “Kumex” 2.1–2.7 GHz antenna by BlueBird Tech

Directed signal formation for effective operation within the working sector.
Uniform and stable coverage thanks to a gain of at least 1 dBi within a ±60° sector.
Stable operation at power levels up to 50 W, even under active electromagnetic interference.
Possibility of integration into mobile and stationary electronic warfare (EW) systems.

Operating principle of the “Kumex” 2.1–2.7 GHz antenna by BlueBird Tech

The antenna forms a directional electromagnetic field within an approximate 60° sector, ensuring effective coverage of the operational area.
Thanks to horizontal linear polarization, compact dimensions, and a wide operating band, the antenna provides stable performance and high reliability within electronic warfare (EW) systems.

By purchasing the “Kumex” 2.1–2.7 GHz antenna in the official kit, you will receive:

“Kumex” 2.1–2.7 GHz antenna — 1 pc.

Delivery terms for the “Kumex” 2.1–2.7 GHz antenna

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

Warranty for the “Kumex” 2.1–2.7 GHz antenna

Warranty for the “Kumex” 2.1–2.7 GHz antenna is 12 months from the date of purchase.

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

The warranty does not apply if the device has 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 conditions for the “Kumex” 2.1–2.7 GHz antenna

The company carries out 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.

In accordance with applicable legislation, you may return a product of proper quality or exchange it if:

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

Payment methods for the “Kumex” 2.1–2.7 GHz antenna

Full payment

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

Why users choose the “Kumex” 2.1–2.7 GHz antenna

Wide operating band: 2100–2700 MHz.
Uniform coverage of the operational area within a ±60° sector.
Horizontal linear polarization.
Ukrainian development by BlueBird Tech.

About the manufacturer of the “Kumex” 2.1–2.7 GHz antenna

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.

About Us

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Offline access to instructions,
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The “Kumex” 2.1–2.7 GHz antenna is used in electronic warfare (EW) systems to suppress FPV drone signals

For military units, to create a signal suppression zone for FPV drones and protect positions and equipment from UAVs operating in the corresponding frequency range.

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

For critical infrastructure facilities, to ensure territorial protection and stable system operation in areas at risk of UAV deployment.

“Kumex” 2.1–2.7 GHz antenna by BlueBird Tech

main indicators

Frequency range: 2.1–2.7 GHz
Operating band: 1800–3000 MHz
Gain: up to 8 dBi
Weight: 200 g

Do you have any questions about the “Kumex” 2.1–2.7 GHz antenna?

Call us – we will explain the technical details and advise you on how to integrate the “Kumex” 2.1–2.7 GHz 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.