The FPV AET Feed Patch antenna is a directional circularly polarized antenna Connector type is SMA female Note This antenna is not include terminator SpecificationsAntenna Size150mm 150mm 5mmWeight70gFeatures 1 Good radiation efficiency Most FR4 based patches have terrible efficiency because FR4 is very lossy at 5 8 GHz 2 Good axial ratio not just directly perpendicular to the patch but also off center 3 Cheapp and easy to manufacture with high accuracy even for a hobbyist Package included 1 x AET Feed 17dBi Patch Antenna Without Feeder Connectors