The transverse resonance technique modification for analysis of slot resonators in microstrip line ground plane

The scattering matrix calculation algorithm of a slot resonator in ground plane microstrip by transverse resonance method is obtained. In the modified algorithm of the boundary problem solution for the “electric" and "magnetic" resonator longitudinal harmonics of a current and field harmonics on the slot resonator (i.e. not only half-wave field approximation) are considered It is shown that taking into account higher harmonics it is possible to calculate the scattering matrix elements in microwave range with high precision.