Design of Low-Cost non-radiative SMA-SIW Launchers

This paper presents an effective transition between coaxial and substrate integrated waveguides (SIWs), providing also a method for its design. The transition is not affected by energy leakage, due to unwanted radiation, and features an adequate bandwidth for many significant applications, e.g. antennas and filters. In addition, the solution is low-cost and the use of full-wave methods is reduced to the minimum, with no need of electromagnetic optimization. The design method can be easily extended to other structures