Planar antenna module for millimeter range wavelengths has antenna element on bearer plate over hole in distance holder, fed by coaxial cable passing through hole in ground plane

摘要

The device has an antenna element parallel to and held at a defined distance by a distance holder from a reflective ground plane and a dielectric between the antenna element and ground plane. A hole machined through the distance holder is covered by a thin bearer plate, forming an air-filled hollow volume beneath the plate on which the antenna element is arranged and fed by a solid outer coaxial cable passing through a hole in the ground plane. The device has an antenna element (1) parallel to and held at a defined distance by a distance holder (3) from a reflective ground plane (5) and a dielectric between the antenna element and the ground plane. A through hole machined into the distance holder is covered by a thin bearer plate (2), forming an air-filled hollow volume (4) beneath the bearer plate, on which the antenna element is arranged and fed by a solid outer coaxial cable (6) passing through a hole in the ground plane.