Transactions of Nanjing University of Aeronautics & Astronautics
COMPACT FOURCOMPONENT 2-D FDFD METHOD WITH EQUIVALENT SURFACE IMPEDANCE BOUNDARY CONDITION FOR MULTILAYER METALCOATED WAVEGUIDE
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Abstract:
A compact fourcomponent twodimen sional (2-D） finitedifference frequency domain (FDFD) method with the equiv alent sur face impedance boundary condition is used to analyze the dispersion characte ristics of multilayer metalcoated waveguides. According to the equivalent surf ace impedance boundary condition, the relationship between transverse field comp onents on the boundary can be easily depicted. Once the eigen equation is solve d, the propagation constant can be obtained as the eigen value for a given frequ ency. Results of the proposed method agaree well with those of high frequency st ructure simulator(HFSS).
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