GEPRC 5.8G Triple Feed Patch-1 Rotary Receiver Antenna FPV Directional Omni Flat Panel Antenna

GEPRC 5.8G Triple Feed Patch-1 Rotary Receiver Antenna FPV Directional Omni Flat Panel Antenna

specification
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
dBi antenna gain: 9.4
Half-power beam width: 55° (horizontal and vertical)
Radiation efficiency: 83.5%
These values are based on simulations and the actual measured values are as follows (they are very similar).
Due to the change in the dielectric constant of FR4, the center frequency may shift between batches.
Moreover, not all FR4 brands have the same dielectric constant.
It is normal for the frequency to switch to 100 MHz.