A compressible dielectric standoff configured to mount at least one antenna on a ground plane of an antenna assembly includes a ground plane end configured to contact the ground plane and at least one antenna end configured to contact the at least one antenna. The compressible dielectric standoff is movable between a compressed state in which the ground plane end is spaced apart from the at least one antenna end a first distance, and an expanded state in which the ground plane end is spaced apart from the at least one antenna end a second distance. The first distance is smaller than the second distance.