A Multibeam Antenna Array Based on Printed Rotman Lens

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In modern microwave applications, it is often desired to integrate radar and communication functions such as active/passive target acquisition, combat identification, weapons guidance, secure point-to-point communications, and active protection into a single complete system. Antennas capable of supporting multiple simultaneous beams that can be scanned over a wide range are capable of this objective. In this paper, the authors will study a complete integrated unit that consists of a Rotman lens and a Tapered Slot Antenna (TSA) array for generating multiple beams, and all these structures are integrated on a Printed Circuit Board (PCB).