Abstract: A waveguide launch includes a first substrate having a first electrically insulating layer having first and second faces, an internal waveguide extending through the first electrically insulating layer, the internal waveguide being defined by an electrically conductive internal waveguide side wall, and, first and second electrically conductive layers in electrical contact with the internal waveguide side wall, and an electrically conductive probe launch. The waveguide launch also includes; a second substrate having a second electrically insulating layer having third and fourth faces, a backshort recess arranged within the second electrically insulating layer, a third electrically conductive layer on the third face, and, an interconnection waveguide extending between the first and third faces.

Abstract: A waveguide launch includes a first substrate having a first electrically insulating layer having first and second faces, an internal waveguide extending through the first electrically insulating layer, the internal waveguide being defined by an electrically conductive internal waveguide side wall, and, first and second electrically conductive layers in electrical contact with the internal waveguide side wall, and an electrically conductive probe launch. The waveguide launch also includes a second substrate having a second electrically insulating layer having third and fourth faces, a backshort recess arranged within the second electrically insulating layer, a third electrically conductive layer on the third face, and, an interconnection waveguide extending between the first and third faces.

Abstract: A substrate integrated waveguide to air filled waveguide transition includes an electrically conductive top layer, an electrically conductive base layer spaced apart from the top layer, wherein the top and base layers each extend along a length axis from a first end to a second end of the transition, the top layer defining a width axis normal to the length axis in the plane of the top layer, and wherein a separation between the top layer and base layer increases towards the second end in a transition region, wherein the transition further includes a dielectric layer sandwiched between the top and base layers, the dielectric layer including a taper portion having a width which tapers to a point at an end point between first and second ends, the width of the taper decreasing towards the second end.