Planar Microstrip · 5.8 GHz · Lithuania

High-Gain
Circular Polarization EGLE-16C-1R

Compact broadband antenna engineered for UAV ground stations, FPV systems, and long-distance RF communications across the 5.0–6.2 GHz band.

14 dBi Gain RHCP 5.0–6.2 GHz SMA Male Tripod Mount 100g
14 dBi Gain
22.3° Beamwidth
1.2 GHz BW
Order / Inquire View Specs
EGLE-16C-1R antenna front view
01 / Specifications

Technical Parameters

Frequency Range5.0 GHz – 6.2 GHz
Antenna Gain14 dBi @ 5.8 GHz
PolarizationRHCP (Right-Hand Circular)
Impedance50 Ω
Half Power Beamwidth22.3°
VSWR< 2
S11< −10 dB
Side Lobe Level−7.5 dB
Back Lobe Level< −15 dB
ConnectorSMA Male, Gold-Plated
Cable Length150 mm
Dimensions110 × 110 × 15 mm
Weight100 g
MountingTripod (1/4 inch thread)
Model (LHCP)EGLE-16C-1L available
OriginKreita, Lithuania
03 / Performance

RF Performance Data

Gain vs. Frequency

5.0 GHz
~12 dBi
5.2 GHz
~12.5 dBi
5.4 GHz
~13 dBi
5.6 GHz
~13.5 dBi
5.8 GHz
14 dBi ★
6.0 GHz
~13 dBi
6.2 GHz
~11.5 dBi

Impedance Matching (S11)

Frequency S11 (dB) VSWR
5.0 GHz−17.88 dB1.292
5.8 GHz−23.45 dB1.141
6.0 GHz−9.88 dB1.939
6.2 GHz−9.30 dB2.041

Path Loss @ 3m (Same Polarization)

FrequencyS21
5.0 GHz−31.50 dB
5.8 GHz−30.21 dB
6.2 GHz−30.08 dB

Opposite Polarization Rejection (RHCP → LHCP)

Strong cross-polarization isolation reduces multipath interference and allows co-located RHCP/LHCP links to operate without mutual interference.

FrequencyRejection
5.0 GHz−42.89 dB
5.8 GHz−49.06 dB
6.2 GHz−56.14 dB

Radiation Pattern Summary

FreqBeamwidthBack LobeSide Lobe
5.0 GHz25.2°−20.83 dB−7.72 dB
5.2 GHz24.1°−15.46 dB−9.31 dB
5.4 GHz25.4°−22.53 dB−8.56 dB
5.6 GHz22.0°−15.78 dB−7.49 dB
5.8 GHz22.3°−17.18 dB−7.51 dB
6.0 GHz22.2°−35.52 dB−8.43 dB
04 / Features

Why EGLE-16C-1R

◎

Circular Polarization

RHCP design eliminates polarization mismatch losses when communicating with rotating UAVs or FPV aircraft. No manual antenna alignment required during flight.

▲

14 dBi High Gain

Focused radiation pattern dramatically extends link budget compared to omnidirectional antennas, without increasing transmit power or violating regulatory limits.

⟺

1.2 GHz Bandwidth

Broadband 5.0–6.2 GHz operation covers FPV video, 5.8 GHz ISM, and UNII-2/UNII-3 bands. Single antenna serves multiple applications without retuning.

✦

Compact Flat Form Factor

Planar PCB construction at 110×110×15 mm and 100g provides panel-antenna performance in a lightweight, portable package ideal for portable ground stations.

⊗

Cross-Pol Isolation

Up to −56 dB opposite-polarization rejection. Two co-located RHCP/LHCP links can operate simultaneously with minimal cross-interference — doubling capacity.

⌖

Tripod Mountable

Built-in 1/4 inch thread compatible with standard photographic and surveying tripods. Quick field deployment with precise azimuth and elevation adjustment.

05 / FAQ

Frequently Asked Questions

Why choose circular polarization over linear?

Linearly polarized antennas operate in a single plane and work best for stationary, fixed-orientation systems. Moving objects like UAVs rotate constantly, causing polarization mismatch that can mean 20+ dB signal loss. Circularly polarized antennas receive signals regardless of the transmitter's rotational orientation, ensuring reliable link margin throughout the full flight envelope.

What does antenna gain actually do for range?

Every 6 dB of antenna gain doubles effective communication distance (in free-space conditions). The EGLE-16C-1R's 14 dBi gain compared to a typical 2 dBi omnidirectional antenna represents 12 dB improvement — roughly 4× the range for the same transmit power. In practice, combined with a high-gain antenna at the vehicle, total system gain can enable multi-kilometer links.

Is LHCP version available?

Yes. The EGLE-16C-1L is the left-hand circular polarization version with identical specifications. Both RHCP and LHCP variants can be used simultaneously in a diversity or dual-link configuration, as opposite polarizations provide up to 49 dB of isolation at 5.8 GHz — allowing two independent data streams in the same airspace.

What receiver or video transmitter is it compatible with?

Any 5.8 GHz system with an SMA female connector and 50Ω impedance. This includes popular FPV video transmitters (ImmersionRC, TBS, DJI Air Unit), long-range RC systems (ExpressLRS, TBS Crossfire), and SDR receivers. The gold-plated SMA male connector ensures low-loss, corrosion-resistant mating.

How should the antenna be oriented for best performance?

Point the face of the PCB (the side with the radiating elements visible) toward the aircraft or target. The 22.3° half-power beamwidth requires reasonably accurate aiming. For tracking applications, use the built-in tripod ball-head to adjust both azimuth and elevation. The level bubble on compatible mounts aids in setting a flat baseline.

What is the maximum input power?

The antenna is passive and its PCB substrate has no stated power limit in normal receive applications. When used in transmit mode, the microstrip feed network and substrate can typically handle several watts continuously; however, Kreita does not specify a maximum transmit power rating for this model. Contact us for guidance on high-power applications.

Get in Touch

Interested in ordering, volume pricing, custom frequency variants, or LHCP configuration? Contact Kreita directly.