导体-介质周期辐射器的频率扫描

Leaky wall of substrate integrated waveguide (SIW) is modeled by a conductor-dielectric periodic (CDP) dyad conductivity, the analysis can establish governing equation for electromagnetic waves including the leaky wave in CDP SIW, and an effective design tool for CDP radiator in turn, can be derived. Setting model parameters period, average conductivity and modulation index according to actual CDP radiator, the calculation results of frequency-scanning are in good agreement with experiment data, which verified the validity of the model and the suitability of the design tool.