Broadside uniform leaky-wave slot array fed by ridge gap splitted line

Recently, Ridge Gap Waveguides (RGW) become one of the most promising waveguide technologies. This type of guiding structures carries the signal in the form of Quasi TEM wave inside an air gap. This leads to less dispersion in the propagating signal and uniform field distribution across the guide. Here, a design of a magic tee feeding a splitted ridge gap line is presented. This ridge gap splitted line is exciting a broadside uniform slot array. The design of the magic tee with the splitted line ensures the elimination of the grating lobes. Step by step design is presented as well as the final radiation patterns of the whole slot array.