FuriousFPV SMA 45-Degrees Adapter - SMA Male to SMA Female
The angle of Patch antenna operation is 90 degree following the picture below
The patch antenna must be facing toward your quad. Usually most of your flying will be directly in front of you so it's ideal to have the patch antenna facing directly forward. When your quad is not in front of you your circular polarized antenna will be used. Using SMA 45 degree connector will square up the patch antenna facing directly forward.