Microstrip to waveguide transition arrangement

A transmission line to waveguide transition arrangement comprising a dielectric carrier material arrangement having a first main side and a second main side, the arrangement comprising a transition portion which in turn comprises an opening having at least one edge, and an electrically conducting border, wherein the border follows the opening and is electrically connected to a ground metalization on the second main side, where a transmission line conductor extends in the dielectric carrier material arrangement towards the border, wherein the arrangement further comprises a transitional part which in turn comprises a border contact section having an outer circumference that essentially follows the shape of the border except for a gap which divides the border contact section where it faces the end of the transmission line conductor, where the transitional part further comprises a conductor contact section which protrudes from the border contact section through the gap in such a way that it contacts the end of the transmission line conductor and extends into the opening, from the transmission line conductor towards the border contact section.