GEPRC SOMA 5.8G Directional Patch Antenna (17dBi, RHCP)

The GEPRC SOMA 5.8G is a flat-panel directional patch antenna for ground stations that need extra range from a 5.8 GHz video link. With 17 dBi of gain in a 203.5 mm square, 20 mm thin housing, it concentrates reception in the direction you point it, so pair it with an omni on a diversity receiver to keep coverage when the quad is close in or overhead.

Key features

• 17 dBi gain from a high-frequency PCB element covering 4.9-6 GHz

• RHCP with an axial ratio of 3 or lower and -25 dB cross-polarisation suppression

• SWR of 1.5 or lower and 88.5% radiation efficiency

• 1/4-inch aluminium-alloy base that fits a range of brackets and stands

• Every unit is VSWR-checked on a spectrum analyser

Specifications

• Centre frequency: 5.45 GHz

• Bandwidth: 4.9-6 GHz

• Polarisation: RHCP

• Gain: 17 dBi

• SWR: 1.5 or lower

• Radiation efficiency: 88.5%

• Connector: SMA (external thread, centre socket)

• Dimensions: 203.5 x 203.5 x 20 mm

• Weight: 272 g

• Enclosure: ABS

At 272 g and 20 cm square it is best mounted on a tripod or ground-station mast. The SMA port is a jack with an external thread and centre socket, so plan on an SMA male-to-male extension or adapter to reach your receiver, and fly RHCP antennas on the quad for a matched link.