Abstract: A mobile platform includes an antenna adapted to simultaneously transmit on a first channel and receive on a second channel, and to dynamically switch communication channels as needed. For example, as the mobile platform changes position, orientation, etc., the configuration of the antenna may be updated to transmit on the second channel and receive on the first channel. Accordingly, despite changes in position or orientation, the mobile platform may maintain communication with other mobile platforms, ground controllers, user equipment, etc.

Abstract: An antenna array is provided having a waveguide cavity. The waveguide cavity has a plurality of holes formed on the top surface thereof. Radiating elements are provided on the top surface, each about one of the holes. A radiation source coupled planar wave radiation through an opening in one of the sides of the waveguide cavity.