Ultra-Wide Bandwidth • GF-Reinforced Housing • Low Drag • High Power Handling • Optimized Axial Ratio

The Omni_protector_UVB is a next-generation wideband omnidirectional antenna engineered for professional FPV, UAV, industrial and high-frequency communication systems. Built on our re-designed semi-protected cloverleaf structure, it combines exceptional RF performance, outstanding mechanical durability, and aerodynamic efficiency—without the limitations commonly found in fully enclosed antennas.

Key Features

Ultra-Wide Useful Bandwidth (5000–6000 MHz)

The antenna maintains a VSWR below 1.5 across an exceptionally broad frequency range, ensuring stable performance for both standard 5.8 GHz systems and specialized high-frequency digital or telemetry applications.
Wide, predictable bandwidth means reliable links even in demanding RF environments.

Clean Omnidirectional Pattern with Enhanced Gain

The Omni_protector_UVB delivers a balanced, well-defined omnidirectional radiation pattern with refined gain characteristics—perfect for aircraft that change orientation frequently.

Optimized Axial Ratio – Superior Circular Polarization

A high-quality axial ratio is crucial for FPV and UAV operations, and this antenna was designed with that in mind.

A low axial ratio provides:

✓ Strong suppression of multipath interference
✓ Cleaner, more consistent video feed
✓ Improved signal stability during aggressive maneuvers
✓ Better penetration and reduced breakup in reflective environments

The result is a more robust and reliable link compared to antennas with poor polarization purity.

Available Version

Currently the Omni_protector_UVB is offered exclusively in RHCP.
A LHCP variant may be released depending on demand.

Re-Engineered Cloverleaf Design – Protected, Not Over-Enclosed

This antenna is based on our custom-tuned cloverleaf geometry, integrated into a semi-enclosed housing that offers the perfect blend of strength, RF transparency and aerodynamic performance.

Advanced GF-Reinforced Housing

The enclosure is made from glass-fiber-reinforced polymer (GF), chosen specifically for antennas due to its unique advantages:

✓ Greatly improved impact and crush resistance
✓ High dimensional stability even at elevated temperatures
✓ Electrically neutral material – it does not interfere with RF radiation, maintaining perfect antenna characteristics

This material allows the antenna to remain rugged while delivering uncompromised RF performance.

Why Semi-Protected Instead of Fully Enclosed?

Our hybrid housing design offers several important benefits:

• Reduced aerodynamic drag – ideal for multirotors and high-speed wings
• Higher power handling – fully sealed antennas trap heat; our design dissipates it efficiently
• Lower weight – improving flight time and center-of-gravity balance
• High durability – far superior to open cloverleaf designs, ideal for repeated crashes or industrial use

Temperature Resistance

Engineered for demanding environments, the antenna maintains stable performance from –30°C to +90°C, making it suitable for winter flying, hot summer operations, and industrial-grade applications.

ProDrone Quality Assurance

Every Omni_protector_UVB antenna is manufactured with premium materials and individually calibrated:

• Precisely tuned radiating elements
• High-quality soldering and assembly
• Each antenna tested on a spectrum analyser
• QC label with simplified performance data included

Why individual testing matters?

At 5–6 GHz even a microscopic 0.1 mm geometry change shifts the resonant frequency.
By testing every single antenna we ensure:

✓ perfect tuning
✓ consistent performance
✓ no “lottery effect”
✓ optimal operation at your target frequencies

Package Includes

• 1× Omni_protector_UVB Antenna (RHCP)
• Connector option depending on selected variant
• QC verification label

Technical Specifications – Omni_protector_UVB

RF Parameters

• Operating Frequency Range: 5000–6000 MHz

• VSWR:

  • < 1.5 across the full 5–6 GHz range

• Return Loss (RL):

  • ≈ –14 to –18 dB across the full operating range

• Polarization: RHCP (currently the only available version)

• Axial Ratio: ~1.1 optimized (low values across the entire usable band)

• Antenna Gain: ~2 dBi (omnidirectional pattern)

• Rejection: 10db
• Beam: 360 degrees

Design and Materials

• Antenna Type: modified, semi-enclosed 4-lobe cloverleaf

• Housing:

  • GF-reinforced polymer (glass-fiber-reinforced polymer)

  • High resistance to mechanical damage

  • Low interaction with electromagnetic fields (RF-neutral)

  • Reduced aerodynamic drag

• Semi-enclosed design:

  • Higher allowable power

  • Improved cooling

  • Enhanced frequency stability

• Cable: high-quality, low-loss

• Connector: SMA or RP-SMA (customer selectable)

Physical Parameters

• Weight: ~19 g

• Total Length: ~16 cm

• Head Diameter: including housing ~39 mm

• Color: black (GF composite)

Environmental and Mechanical Resistance

• Operating Temperature: –30°C to +90°C

• Mechanical Durability: very high (GF material + cushioned construction)

• Vibration Resistance: high — designed for UAV, military and FPV racing

• Weather Resistance: stable

Quality Control

• Each antenna is individually measured on a VNA / spectrum analyzer

• Full verification of parameters

• Simple QC label with individual measurement results included

Applications

• FPV systems (analog HD / digital)

• UAVs, UGVs, and industrial robots in 5–6 GHz range

• Telemetry and transmission systems

• High-interference environments

• Installations requiring high impact resistance and low aerodynamic drag

• Military operrations