Aperture-fed, stacked-patch antenna assembly

Abstract

Directive gain antenna elements implemented with an aperture-fed patch array antenna assembly are described. A feed network for the aperture-fed patch array may include offset apertures and may also include meandering feed lines. Scalable aperture shapes and orientations that can be used with antennas operating at any frequency and with dual orthogonal polarizations are also disclosed. Directive gain antenna elements implemented with arrays of orthogonal reflected dipoles are also described with optimal feed networks and parasitic elements to achieve desired directive gain characteristics. Such arrayed dipole antennas feature dual orthogonal polarizations with assembly tabs that lower cost and improve reliability. Backhaul radios that incorporate said antennas are also disclosed.

1 . An antenna assembly comprising:
 a plurality of first substrates, each of the plurality of first substrates comprising a unitary dipole antenna element and a slot;   a second substrate comprising a plurality of coplanar dipole antenna elements and a plurality of slots; and   a third substrate, wherein the plurality of first substrates are coupled to the third substrate, and wherein the plurality of slots in the second substrate are configured to engage with the slot in each of the plurality of first substrates to form a two-port, orthogonally polarized dipole antenna array.