Toward a unified efficient algorithm for characterizing planar periodic waveguides and their applications to MIC and MMIC circuits

A modified three-dimensional spectral-domain approach is presented in detail to analyze the characteristics of planar periodically loaded structures. Mode propagation in both symmetrically and asymmetrically loaded periodic structures is described, and some physical mechanisms are clarified. Slow-wave and loss properties as well as passband and stopband characteristics related to the cutoff and resonant frequencies are discussed. Numerical results are compared with measured results obtained by transmission line experimental procedures.<
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