Triple Feed Patch Antenna 5.8ghz 9.4dbi Polarized Antenna for Fpv

The Triple Feed Patch antenna is a directional circularly polarized antenna.Radiation efficiency is good.Most FR4-based patches are very inefficient because FR4 is very lossy at 5.8 GHz.A good axial ratio is not only perpendicular to the patch but also off center.It is cheap and easy to manufacture, even for amateurs with high precision.Center frequency: 5.8GHzBandwidth: 660 MHz (5.47-6.13 GHz)Matching: S11 less than -20 dB, VSWR less than 1.22 (center frequency)Axle ratio: less than 1.3Antenna gain: 9.4 dBiHalf power beam width: 55 (horizontal and vertical)Radiation efficiency: 83.5%Colour: blackMaterial: plasticSize: 55x55mmPackage Contents:1 * Coaxial double-ended inner needle1 * Triple feed patch antennaOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.