VideoLink 4.5-6.3 GHz Helical Antenna
Introducing the VideoLink broadband helical antenna, designed for reliable operation in the 4.5-6.3 GHz frequency range. This compact circular antenna is optimized for integration into ground stations and mobile systems where small size and low weight are critical, while ensuring stable signal reception and transmission in challenging conditions.
Brief Overview
The antenna measures 64×64×120 mm and weighs only 60 g, making it suitable for portable solutions and weight-constrained platforms. The 14-turn helical design provides stable circular polarization with a high-quality radiation pattern. The SMA connector ensures easy connection to a wide range of receivers and transmitters.
Features and Benefits
- Frequency Range: 4.5-6.3 GHz, providing broadband coverage.
- Polarization: RHCP or LHCP options available for selection based on system type and communication conditions.
- Gain: from 11 dBi at 4.5 GHz to 13 dBi at 6.3 GHz; typical gain around 12.5 dBi.
- Beamwidth: approximately 40-50°, pattern width approximately 35-45°, providing balanced directivity and coverage.
- Number of Turns: 14 — for a stable circular radiation pattern and improved signal stability.
- SWR: no more than 2 for efficient power transfer and minimal reflection.
- Connector: SMA — common and easy to use.
- Compact Dimensions: 64×64×120 mm; Weight: 60 g — suitable for mobile platforms and portable stations.
| Parameter | Value |
|---|---|
| Frequency Range | 4.5-6.3 GHz |
| Polarization | RHCP or LHCP |
| Gain (min/max) | from 11 dBi (4.5 GHz) to 13 dBi (6.3 GHz) |
| Typical Gain | 12.5 dBi |
| Beamwidth | 40-50 degrees |
| Pattern Width | 35-45 degrees |
| Number of Turns | 14 |
| SWR | ≤ 2 |
| Connector | SMA |
| Dimensions | 64×64×120 mm |
| Weight | 60 g |
| Manufacturer | VideoLink |
| Purpose | Optimized for ground stations |
The helical design ensures reliable circular polarization and a stable directional characteristic, making the antenna suitable for various applications: video surveillance systems, data transmission, telecommunications, and other projects requiring compact and reliable circular radiation. RHCP or LHCP options allow for polarization selection to ensure compatibility with existing stations and satellite solutions that use circular polarization.
The VideoLink 4.5-6.3 GHz antenna combines performance (gain up to 13 dBi), wide frequency coverage, and easy connectivity via an SMA connector, making it a valuable choice for engineers and integrators seeking a compact, high-efficiency circular antenna for ground and mobile systems.
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