Yagi Antenna for Directional RF Signal & Long-Range Communication
A Yagi antenna, also known as a Yagi–Uda antenna, is a directional antenna that uses a driven element along with multiple parasitic elements (directors and a reflector) to focus radio signals in a specific direction. This design provides high gain and improved signal strength, making Yagi antennas widely used in applications such as television reception, wireless communications, and radio transmission.
Modification and technical characteristics
Antenna Yagi-Uda Lite 750
Antenna Yagi-Uda Lite 915
General device description
The Yagi antennas are compact directional antennas designed to improve the performance of wireless communication systems. They help extend coverage and enhance signal quality, making communication more stable and reliable. Thanks to their lightweight design, these antennas are easy to install and integrate into a wide range of setups.
They are suitable for both portable and stationary use, offering flexibility across different applications. Built for efficiency, they perform well even in environments with limited signal strength. Overall, Yagi antennas provide a practical solution for achieving stronger and more consistent connectivity.
Contact usTechnical characteristics
The Yagi-Uda Lite 750 operates in the 750 MHz band, while the Yagi-Uda Lite 915 is designed for the 915 MHz band.
The Yagi antennas support operating frequency ranges of 720–840 MHz and 870–1000 MHz, respectively.
Both models provide up to 9 dBi of gain, enabling improved signal reach and strength.
They feature linear polarization, ensuring consistent signal transmission and reception.
The Yagi-Uda Lite 750 weighs 2.7 oz, while the Yagi-Uda Lite 915 weighs slightly more at 3 oz.
The Yagi antennas are designed to extend the communication range in both digital and analog systems.
They also help improve overall signal quality, especially in environments with weaker connectivity.
FAQ
EW system antennas shape and direct electromagnetic emissions within the desired frequency range, enabling the suppression of control, telemetry, and data transmission channels of unmanned systems. Depending on the antenna type and its operating band, this allows effective operation against both FPV drones and Mavic-type drones as part of electronic warfare complexes.
The effectiveness of an antenna is determined by its operating range, gain, polarization type, power, and mounting method. For example, the lineup includes models with gains from 1 to 16 dBi, circular or linear polarization, and power support up to 120 W. All of these factors influence the density of the jamming field, operational range, and stability of signal suppression.
Different unmanned systems operate in different frequency bands, so effective countermeasures require coverage across multiple ranges. That’s why the lineup includes antennas operating from 210 MHz to 6.1 GHz, including dome-style quadrifilar “3-in-1” and “4-in-1” solutions, which allow simultaneous coverage of several bands to protect against FPV drones.
Gain determines how effectively an antenna focuses or receives a signal in a specific direction or area. For example, directional HELIX and sector antennas with gains up to 14–16 dBi provide a denser and more effective radio impact in the targeted zone, while omnidirectional antennas with 1–3 dBi gain are designed for uniform coverage around the platform.
In the context of EW and telecommunications systems, antennas enable the reception and transmission of radio signals, forming the basis for establishing a stable radio channel or generating jamming. Certain models are also used in electronic intelligence complexes—for example, remote antennas for the “Zaruba 3” detector—which enhance reception range and communication quality.
Polarization directly affects an antenna’s compatibility with the type of signal. The lineup includes both circular and linear polarization. Circular polarization is used, for example, in “Harpina,” HELIX, and quadrifilar antennas, while linear polarization is used in sector, Yagi-Uda, PATCH, and some omnidirectional antennas. Choosing the correct polarization helps enhance the effectiveness of a given system.
Directional antennas focus energy on a specific target, increasing effectiveness and reducing signal loss. This makes them ideal for precise operations against drones, where high accuracy is crucial.
Omnidirectional antennas provide coverage around themselves without the need for precise aiming. The lineup includes models for 350–450, 510–600, 590–700, 700–820, 800–920, and 900–1050 MHz bands with vertical polarization, gains of 1–3 dBi, and IP65 protection. They are used to create dome-shaped EW coverage against FPV drones.
Proper antenna placement affects coverage quality, signal loss, and overall system effectiveness. This is particularly evident with remote antennas for the “Zaruba 3” drone detector, where cable length is directly linked to signal loss. The better the installation point and configuration are chosen, the more efficiently the system performs in reception or jamming.
Adaptability is achieved through a wide range of designs, frequency bands, and application formats. The lineup includes directional, sector, omnidirectional, and quadrifilar antennas, models for dome-shaped coverage, integration into EW complexes, telecommunications systems, repeaters, and drone detectors. This allows selecting the right antenna for a specific type of threat, platform, and operational scenario.
