Dual-polarized wideband radiator with single-plane stripline feed

An array antenna comprising:

• a plurality or rows of dual-polarized slot antenna elements, each of the plurality of dual-polarized slot antenna elements comprising:
• a first element board having a radiating portion having one or more notch antenna elements disposed thereon and a having feed portion having a feed circuit disposed thereon and configured to provide signals to each of the one or more notch antenna elements disposed on the radiating portion of the first element board and having a slot provided in a first one of the radiating or feed portions of the first element board;
• a second element board having a radiating portion having one or more notch antenna elements disposed thereon and a having feed portion having a feed circuit disposed thereon and configured to provide signals to each of the one or more notch antenna elements disposed on the radiating portion of the second element board and having a slot provided in a second one of the radiating or feed portions of the second element board with the slot of the first element board engaged with the slot of the second element such that the first and second element boards are interleaved and are orthogonally disposed;
• wherein each row of the plurality of rows of dual-polarized slot antennas are arranged in the interleaved stripline-to-slot feed structure with respect to an adjacent row;
• and
• an upper round block and a lower ground block coupled to the plurality of dual polarized slot antennas, wherein the upper round block and the lower ground block provide a ground continuity for the antenna.