Broadband conformal inclined slotline antenna array

Abstract From the Canadian patent

A missile guidance antenna that is conformal to the missile surface, dual-polarized and broadband. Slotline notch array elements (30, 52) are inclined toward boresight for both the E and H-planes. This inclination directs a greater portion of the energy toward the front of the missile. The additional energy directed forward reduces the ifying effects of the metallic skin on the tangential E-field and enhances the performance of the other polarization. The slotline elements (30 52) can be packed, with spacing close enough to allow for electronic beam steering without creating grating lobes in the field at the highest frequency of operation.