VideoLink WHA-4063-15-2 Helical Antenna — Broadband Circular Antenna for Ground Stations

Introducing the VideoLink WHA-4063-15-2 helical antenna from VideoLink — an optimized, lightweight, and high-performance solution for professional applications in the 4.0–6.3 GHz band. The antenna provides stable circular polarization (RHCP or LHCP), making it ideal for communication with mobile and stationary platforms, UAVs, and ground stations where reliability and minimal polarization losses are critical.

Key Features and Benefits

• Frequency Range: 4.0–6.3 GHz (the original description also states 4.5–6.3 GHz)
• Gain: from approximately 11.5 dBi at lower frequencies (~4.0 GHz) to 15.5 dBi at the upper frequency of 6.3 GHz
• Main Lobe Beamwidth: from ~45° at lower frequencies to ~25° at higher frequencies
• Number of Turns: 18.5 — the helical design ensures a uniform radiation pattern and stable circular polarization
• Polarization: RHCP or LHCP — both options are available to reduce losses when interacting with various platforms
• SWR: ≤ 2, simplifying matching with most receivers/transmitters
• Connector: SMA — standard interface for quick and reliable connection
• Dimensions: 88×88×185 mm; Weight: 85 g — compact and lightweight design for mobile mounting

The helical design with 18.5 turns guarantees uniform energy distribution across the band and stable circular polarization. By varying the main lobe angle from 45° to 25°, the antenna combines a wide coverage sector at lower frequencies with more directional operation at higher frequencies, allowing for link optimization based on specific tasks: from wide-area video coverage to directional data transmission.

Recommended Applications

The VideoLink WHA-4063-15-2 antenna is ideal for wireless video and telemetry communication, for building links in the 4–6.3 GHz range, in data transmission systems for UAVs, portable, and stationary ground stations. Its broadband nature, good SWR, and polarization options make this model versatile for working with various equipment configurations.

Compact dimensions of 88×88×185 mm and a weight of 85 g simplify mounting on mobile platforms, drones, and stationary brackets. The SMA connector provides convenient connection to transmitters and receivers without additional adapters in most cases.

If you need a compact, lightweight, yet high-performance helical antenna for the 4–6.3 GHz operating bands — the VideoLink WHA-4063-15-2 is an excellent choice, combining broadband capability, circular polarization, and a convenient design for quick installation and system integration.

Technical Parameters

Product Category: Antennas > Circular Antennas > Helical Antenna

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