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.
|Center frequency||5.8 GHz|
|Bandwidth||660 MHz (5.47 – 6.13 GHz)|
|Axial ratio||< 1.3|
|Antenna gain||9.4 dBi|
|Half power beam width||55° (horizontal and vertical)|