Design of an All-Metal Broadband Rotman Lens for Satellite Communications at K/Ka-Band

In this work an all-metal Rotman lens antenna design is presented. Ridge waveguides are used for the input and output ports of the lens to achieve broadband behavior in the K/KA bands of the new generation of satellite communications (17.3 GHz to 31 GHz). The Rotman lens is composed by 5 input and 5 output ports, with a maximum beam scanning of 20 degrees. The connection between the input and outp...