A retrodirective array based on simplified direction-of-arrival estimation algorithm is presented. A beamforming network based on Rotman lens providing the direction of arrival estimation as well as the beam steering is proposed.
This paper demonstrates the design of Rotman lens for ESM sensor application in operation band 32-38 GHz. The initial design is created in Remcom’s Rotman Lens Designer and then verified against experimental measurements. Parameters of the realized prototype are presented and methods of increasing its performance are outlined.