Abstract: A dual polarized slotline feed circuit includes a first slotline circuit and a second slotline circuit with the first and second slotline circuits disposed such that first slotline circuit is orthogonal to the second slotline and such that the first and second slotline circuits each have a first portion with a common centerline and wherein a second portion of one of the first and second slotline circuits is bent such that it is disposed at an angle with respect to the common centerline portion of the first and second slotline circuits.

Abstract: A radiator element includes a pair of substrates each having a transition section and a feed surface, each of the substrates is spaced apart from one another. The radiator element further includes a balanced symmetrical feed having a pair of radio frequency (RF) feed lines disposed adjacent to and electromagnetically coupled to the feed surface of one of a corresponding one of the pair of transition sections, and the pair of radio frequency feed lines forms a signal null point adjacent the transition sections.