Flat circular polarized antenna engineered for long-range UAV communications, FPV drone systems and ground station deployments. Right-hand circular polarization with 14 dBi gain in a 110 × 110 mm form factor.
Every design decision in the EGLE-16C-1R is driven by the requirements of real-world UAV and long-range communication deployments.
Focused radiation pattern extends communication range by concentrating RF energy in the main beam direction, without increasing transmitter power. Critical for regulatory compliance and link budget efficiency.
Right-hand circular polarization ensures reliable signal reception regardless of antenna orientation. Eliminates polarization mismatch loss inherent in linear polarized systems — essential for rotating UAV platforms.
1.2 GHz operating bandwidth covers the entire 5.8 GHz ISM band and beyond. Full coverage for FPV video links, RC control, WiFi 5 and emerging 6 GHz applications within a single antenna.
Circular polarization inherently attenuates reflected signals that undergo polarization reversal on reflection. Combined with the narrow beam, this significantly reduces multipath distortion in cluttered RF environments.
110 × 110 × 15 mm PCB-based planar design achieves high gain in a lightweight, low-profile package. Built-in 1/4-inch tripod thread and M6 screw mount provide flexible deployment options.
Complete RF and mechanical specification of the EGLE-16C-1R antenna system.
| Frequency Range | 5.0 – 6.2 GHz |
| Antenna Gain | 14 dBi @ 5.8 GHz |
| Polarization | RHCP (Right-Hand Circular) LHCP available as EGLE-16C-1L |
| Impedance | 50 Ω |
| Half-Power Beamwidth | 22.3° |
| VSWR | < 2 (1.141 @ 5.8 GHz) |
| S11 | < −10 dB (−23.45 dB @ 5.8 GHz) |
| Side Lobe Level | −7.5 dB |
| Back Lobe Level | < −15 dB |
| Dimensions | 110 × 110 × 15 mm + cable |
| Weight | 100 g |
| Connector | SMA Male, gold-plated, 150 mm cable |
| Mounting | M6 screw / 1/4″ tripod thread (built-in) |
All performance data measured on calibrated vector network analyzer. Radiation patterns captured in anechoic chamber conditions.
EGLE-16C-1R and its LHCP counterpart EGLE-16C-1L — front panels, cross-section and tripod-mounted configurations.
Engineering rationale behind the key design choices of the EGLE-16C-1R platform.
Linearly polarized antennas operate in a single plane and are best suited for stationary, aligned applications. UAVs and mobile platforms rotate dynamically in 3D space, causing severe polarization mismatch loss with linear systems. The EGLE-16C-1R's circular polarization maintains a consistent received signal regardless of vehicle roll, pitch or yaw — eliminating orientation-dependent fades that can break video links or control connections at critical moments.
Omnidirectional antennas radiate equally in all directions, wasting RF energy in directions where it is not needed. Transmitter power is constrained by regulatory limits, heat dissipation and battery capacity. A 14 dBi directional antenna delivers the equivalent of 25× power increase in the focused direction — without touching the transmitter. For long-range FPV or telemetry links, this gain difference is the margin between a solid connection and signal loss.
The EGLE-16C-1R achieves −49 dB cross-polarization rejection at 5.8 GHz. This serves two purposes: it suppresses interference from equipment operating in opposite polarization in spectrum-congested environments, and it attenuates multipath reflections — since signal reflections from conductive surfaces reverse circular polarization sense, making them naturally rejected by the receiving antenna. The result is cleaner, more reliable links in complex urban or industrial environments.
When the primary system operates RHCP (EGLE-16C-1R) and a secondary system uses LHCP (EGLE-16C-1L), both links can share the same frequency band simultaneously. The natural polarization isolation — measured at up to 56 dB at 6.2 GHz — acts as an additional layer of spectral separation beyond channel spacing, enabling higher density UAV operations or simultaneous uplink and downlink on the same frequency without co-channel interference.
Optimized for scenarios where link reliability and range are operationally critical.
High-gain ground station antenna for long-range FPV racing and freestyle. Maintain crisp video at extended range where standard antennas fail.
Fixed directional antenna for professional UAV command and control links. Tripod-mount and built-in 1/4″ thread enable stable, precision-aimed deployment.
Point-to-point and point-to-multipoint relay nodes benefit from the high gain and narrow beam for maximizing SNR on line-of-sight links over distances.
Reliable uplink/downlink for MAVLink telemetry, RTK correction data and sensor payload offload where omnidirectional link budgets are insufficient.
Available in RHCP (EGLE-16C-1R) and LHCP (EGLE-16C-1L) variants. Custom mounting configurations and bulk pricing available. Manufactured in Lithuania.