Aperture coupled printed wire antennas of arbitrary shape and finite wire width

A full wave analysis is presented for aperture-coupled printed wire antennas of arbitrary shape and finite wire width. Aperture-coupled dipoles with parasitic elements or end loading are analyzed. It is shown that, by adding parasitic elements or end loading to a dipole, one may increase the coupling efficiency and make the antenna more compact with no increase in the backward radiation. Single and twin loops are also analyzed. The loop antennas provide a possibility for increasing element directivity or polarization flexibility in the array.<>