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Dispersion characteristics of open microstrip lines using closed-form asymptotic extraction
IEEE transactions on microwave theory and techniques
A full-wave spectral-domain method with an asymptotic extraction technique is formulated for multilayer microstrip lines. This formulation provides a simple closed-form representation of the asymptotic part of the impedance matrix by using Chebyshev polynomial basis functions with the square-root edge condition and the asymptotic behavior of the Green's function. The formulation is applied to open microstrip lines. Numerical results, in the form of the effective dielectric constants, aredoi:10.1109/22.563350 fatcat:nx5ov654jjdfrhdfxwaujvq32m