HELIX Lite 5.8/12 GHz Antenna from BlueBird is an ultralight, high-precision helical antenna designed for applications where mass and radio channel stability are critical. The device is intended for operation in a wide frequency range of 4.9 - 6.1 GHz (operating band at SWR < 2: 4900 - 6100 MHz) with a nominal frequency of 5800 MHz and provides reception/transmission with Right-Hand Circular Polarization (RHCP), which is important for reducing the effects of multipath interference and platform orientation changes.
Key Advantages and Design
HELIX Lite combines engineering simplicity and minimal mass while maintaining high electrical efficiency. The description mentions both the HELIX Lite 5.8/12 variant and the HELIX Lite 5.8/15 designation; the general section states that the design is based on 12 precisely calculated helix turns, while the subheading mentions 15 turns — this information is present in the original description and reflects the variability of designations and versions in the documentation.
Radiator and Radiation Pattern
The helix geometry forms a single-lobe, narrow-beam radiation pattern along the antenna axis with a gain of up to 14 dBi and a main lobe width at -3 dB (HPBW) — 35°, which ensures extended range and good isolation from out-of-band interference.
Lightweight and Mobile
The Lite concept emphasizes weight minimization, making the antenna ideal for mobile platforms: unmanned aerial vehicles (UAVs), repeater drones, and airborne systems where every gram matters. At the same time, mechanical reliability and ease of installation are maintained.
Stable Circular Polarization
High polarization quality is ensured by an Axial Ratio < 1.5, which allows for stable communication even when the platform rotates or in conditions of strong multipath signal propagation.
Universal Mounting
The antenna is conveniently mounted on both stationary repeaters (masts, towers) and integrated into airborne systems of mobile objects due to its well-thought-out design and small mass.
Technical Specifications:
| Parameter | Value |
|---|---|
| Nominal Frequency Range | 5800 MHz |
| Operating Band (SWR < 2) | 4900 - 6100 MHz |
| SWR | < 1.5 |
| Polarization Type | Circular (Right-Hand) |
| Impedance | 50 Ohm |
| Gain | up to 14 dBi |
| Radiation Pattern | single-lobe along the axis; main lobe width at -3 dB (HPBW) — 35° |
| Connector | SMA female |
| Element Material | PETG, copper |
| Temperature Range | -40°C ~ +70°C |
| Weight | 45 g |
| Dimensions | width 55 mm, height — 164 mm |
Package Contents
- HELIX Lite 5.8/12 Antenna - 1 pc.
The HELIX Lite 5.8/12/15 antenna from BlueBird combines high electrical efficiency, stable right-hand circular polarization, a narrow-beam pattern, and minimal weight (45 g), making it an excellent choice for professional long-range systems and mobile applications. If you need a lightweight, reliable, and precise helical antenna with up to 14 dBi gain and a stable Axial Ratio < 1.5 — HELIX Lite from BlueBird will provide the necessary performance in the 4.9 - 6.1 GHz range.
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