Product Review

Patch Antenna with Adapter and Dummy Load Link: https://www.amazon.com/dp/B07DXVZ917

RCmall 5.8GHz 9.4dBi Triple Feed Patch Antenna, High Accuracy SMA Male to SMA Male Cable Adapter, Directional Circularly Polarized Antenna for FPV Racing Drone

The Triple Feed Patch antenna is a directional circularly polarized antenna.

Good radiation efficiency. Most FR4-based patches have terrible efficiency because FR4 is very lossy at 5.8 GHz.

Good axial ratio, not just directly perpendicular to the patch but also off-center.

Cheap and easy to manufacture with high accuracy, even for a hobbyist.

Specifications:
Center frequency: 5.8 GHz
Bandwidth: 660 MHz (5.47 - 6.13 GHz)
Matching: S11 < -20 dB, VSWR < 1.22 (at center frequency)
Axial ratio: < 1.3
Antenna gain: 9.4 dBi
Half power beam width: 55° (horizontal and vertical)
Radiation efficiency: 83.5%
Size: 59.7 x 59.7 x 99.1mm
Color: black

Package Included:
1 x Triple Feed Patch Antenna
1 x semi-rigid coax (SMA male - SMA male)
30 days money back and 2 year warranty. If there is any problem please contact us feel free.