High power, low profile broadband antenna

摘要

An antenna (100) includes an enclosure (102) formed by a front wall (104) and a back wall (106) opposite to the front wall, and a front face (108) and a back face (110) opposite to the front face. Both the front face and the back face extend between the front wall and the back wall to form a cavity (112) within the enclosure. The enclosure further includes a slot (114) formed in the front face to form a cavity backed slot. A radio frequency "RF" connector (120) is mounted in the front wall. A shaped feed line (122) is mounted within the cavity and is electrically connected to the RF connector to transmit and receive RF energy. The shaped feed line extends across the slot to couple the RF energy between the slot and the shaped feed line. The shaped feed line has a predetermined structure to substantially reduce an electric field strength to improve power handing of the antenna.