VideoLink 4.0-6.3 GHz Helical Antenna

Brand: VideoLink. A compact helical antenna designed for efficient operation in the approximately 4–6 GHz range, making it ideal for video broadcasting, data transmission systems, and as a repeater antenna. The design combines low weight and ease of installation, ensuring reliability and long-term operation.

Brief Overview

This is a broadband, circularly polarized helical antenna optimized for installation on stationary and mobile platforms. Various sources indicate two close operating range limits: 4.0-6.3 GHz (specified in technical parameters) and 4.5-6.3 GHz (in the general description). The antenna supports right-hand or left-hand circular polarization (RHCP or LHCP), which helps reduce losses when receiver orientation changes and improves connection stability in noisy environments.

Technical Specifications

• Frequency Range: 4.0-6.3 GHz (4.5-6.3 GHz also mentioned in general description)
• Beamwidth (angle): approximately 45° to 25° depending on frequency
• Number of Turns: 18.5
• Gain: from 11.5 dBi at 4.0 GHz to 15.5 dBi at 6.3 GHz
• Polarization: RHCP or LHCP
• VSWR: no more than 2
• Connector: SMA
• Dimensions: 64x64x180 mm
• Weight: 48 g

The antenna demonstrates a narrowing of the radiation pattern angle with increasing frequency (approximately from 45° to 25°) and provides stable gain across the entire operating range, which is especially important for video transmission and data links in the C-band. Small dimensions of 64x64x180 mm and a weight of only 48 g allow the antenna to be installed on repeaters, wireless nodes, and mobile platforms where weight and space limitations are critical.

RHCP or LHCP polarization allows for selecting the optimal operating mode to reduce losses when receiver orientation changes, and a VSWR of up to 2 ensures acceptable impedance matching with the feeder and minimization of reflected waves. The SMA connector provides compatibility with a wide range of cable and feeder solutions, simplifying antenna integration into existing networks.

This model is suitable for applications in video surveillance systems, unmanned complexes, access points, and repeaters where a compact, lightweight, and highly efficient circular antenna is required. The design provides for simple installation and low maintenance requirements, making it a practical choice for professional installations and amateur solutions.

Product Type: Antennas > Circular Antennas > Helical Antenna

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