Patent ID: 8917150
Filing Date: 2014-12-23
Classification: H01P,H03H,Y10T

Abstract:
1. A waveguide balun apparatus, comprising: a. a conductive surface configured to provide a ground plane for the balun; b. first and second waveguide structures extending along respective longitudinal paths above the conductive surface, the first and second waveguide structures each including an outer conductor in electrical communication with the conductive surface and an inner conductor disposed inside and spaced apart from the outer conductor, wherein the inner conductor of the first waveguide structure and the inner conductor of the second waveguide structure are electrically connected to one another at respective selected ends of the first and second waveguide structures; c. first and second longitudinally extending apertures disposed in the conductive surface at a location below the first and second waveguide structures, respectively, each aperture dimensioned to extend along the longitudinal path of the respective waveguide structure; d. first and second elongated probes electrically connected at the selected end to, and extending away from, the outer conductors of the first and second waveguide structures, respectively; and e. two probe sidewalls electrically connected to the conductive surface and extending upward from the conductive surface on either side of each of the first and second elongated probes to provide a grounded U-shaped channel about each of the first and second elongated probes.