Patent attributes
Low-profile broadband patch antennas capable of radiating circularly polarized (CP) signals utilizing a single probe in accordance with embodiments of the invention are disclosed. In many embodiments, the patch antenna includes a ground plane, a patch plate, at least one dielectric or foam substrate, and a feed probe. In several embodiments, the patch plate includes a first plate and a second plate that can be connected via first and second connecting bars. In various embodiments, the connection of the first and second plates can expose first and second slots as further discussed below. In a variety of embodiments, the feed probe can be a coaxial cable having an inner and outer conductor where the inner conductor connects to the first plate and the outer conductor connects to the ground plane.
