Multi-beam active phased array architecture

摘要

In an exemplary embodiment, a phased array antenna comprises multiple subcircuits in communication with multiple radiating elements. The radio frequency signals are adjusted for both polarization control and beam steering. In a receive embodiment, multiple RF signals are received and combined into at least one receive beam output. In a transmit embodiment, at least one transmit beam input is divided and transmitted through multiple radiating elements. In an exemplary embodiment, the phased array antenna provides multi-beam formation over multiple operating frequency bands. The wideband nature of the active components allows for operation over multiple frequency bands simultaneously. Furthermore, the antenna polarization may be static or dynamically controlled at the subarray or radiating element level.

主权项

1. A dual-circular polarization multi-beam receive antenna comprising:
a first network of splitters to receive a vertical polarization signal from a radiating element, and to divide the vertical polarization signal into a plurality of divided vertical polarization signals; a second network of splitters to receive a horizontal polarization signal from the radiating element, and to divide the horizontal polarization signal into a plurality of divided horizontal polarization signals; and a beam steering portion to form a plurality of circular polarized beams from the plurality of divided vertical polarization signals and the plurality of divided horizontal polarization signals, wherein the beam steering portion comprises vector generators to adjust the divided vertical polarization signals and the divided horizontal polarization signals prior to forming the circular polarized beams.