ULTRA THIN AND COMPACT DUAL POLARIZED MICROSTRIP PATCH ANTENNA ARRAY WITH 3-DIMENSIONAL (3D) FEEDING NETWORK

摘要

An antenna assembly for transmitting or receiving radio waves, comprising: at least one patch antenna element; a three-dimensional (3D) microstrip line feeding network configured to feed the at least one patch antenna element for operation in dual polarisation, the 3D microstrip line feeding network comprising an upper layer and a lower layer; and a ground plane; wherein a first air gap is provided between the at least one patch antenna element and the ground plane, a second air gap is provided between the upper layer of the 3D microstrip line feeding network and the ground plane, and a third air gap is provided between the lower layer of the 3D microstrip line feeding network and the ground plane.