VideoLink WHA-4572-15-2 Helical Antenna (4.5-7.2 GHz)
Brand: VideoLink. Introducing the compact and reliable VideoLink WHA-4572-15-2 helical antenna, designed for stable operation in the wideband 4.5–7.2 GHz range. This antenna is ideal for ground receiving stations, video transmission systems, telemetry, and UAV communication, where circular polarization and minimization of multipath interference are critical.
Description and Purpose
The helical design provides circular polarization (RHCP or LHCP capability), which reduces losses due to polarization changes and enhances channel stability in conditions of reflections and multipath. The antenna is designed for use in a wide frequency range from 4.5 GHz to 7.2 GHz, making it a versatile solution for various projects — from UAV video reception to stationary data reception and transmission systems in field conditions.
Technical Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 4.5-7.2 GHz |
| Gain | from 11.5 dBi (at 4.5 GHz) to 15.5 dBi (at 7.2 GHz) |
| Beamwidth | 25-45 degrees |
| Number of Turns | 17 |
| Polarization | RHCP or LHCP |
| VSWR | not more than 2 |
| Connector | SMA |
| Dimensions | 88×88×185 mm |
| Weight | 85 g |
Advantages
- Wideband operation in the 4.5–7.2 GHz range ensures compatibility with various transceiver systems;
- RHCP/LHCP circular polarization reduces the impact of multipath reflections and improves channel stability;
- High gain up to 15.5 dBi at the upper frequency enhances reception range and quality;
- Compact dimensions of 88×88×185 mm and low weight of 85 g simplify installation and integration in field conditions;
- Reliable SMA connector for quick and secure connection to receiving equipment;
- Optimization for ground stations makes the antenna practical for mobile and stationary use.
Application Recommendations
The VideoLink WHA-4572-15-2 is recommended for ground receiving stations, video and telemetry transmission, integration with UAV control systems, and any applications in the 4.5–7.2 GHz range requiring reliable circular polarization and relatively high gain with compact dimensions. The low Voltage Standing Wave Ratio (VSWR not more than 2) facilitates antenna system setup and contributes to efficient transmission line operation.
Product Category: Antennas > Circular Antennas > Helical Antenna
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