MULTI-BEAM ANTENNA

摘要

At least one electromagnetic lens (12) having a first contour (24) is disposed proximate to a dielectric substrate (16) having a first edge (18) having a second contour (30). A plurality of antenna feed elements (14), for example, end-fire antennas (14.1), are disposed on the dielectric substrate (16) along the second contour (30). A signal (58) applied to a corporate feed port (54) is switched to the antenna feed elements (14) by a switching network (48), wherein each antenna feed element (14) launches an electromagnetic wave that is diffracted by the at least one electromagnetic lens (12) so as to form an associated beam of electromagnetic energy (20). Different antenna feed elements (14) generate different beams of electromagnetic energy (20) in different directions (42). A pair of electromagnetic lenses (12.1, 12.2) with associated antenna feed elements (14) at different edge locations (18, 62) on the dielectric substrate (16) provide for bi-static operation. A reflector (62) may be used to redirect the beams of electromagnetic energy (20).