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Electric fields of spatial Green's functions of microstrip structures and applications to the calculations of impedance matrix elements
Author(s) -
Tsang Leung,
Cha JunHo,
Thomas John R.
Publication year - 1999
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19990120)20:2<90::aid-mop3>3.0.co;2-7
Subject(s) - impedance parameters , microstrip , computation , electrical impedance , electric field , mathematical analysis , basis function , numerical integration , matrix (chemical analysis) , quadrature (astronomy) , physics , mathematics , optics , algorithm , quantum mechanics , materials science , composite material
The electric fields of the spatial Green's functions of microstrip structures are calculated by numerically integrating the Sommerfeld integrals along the Sommerfeld integration paths. To facilitate and accelerate convergence, a higher order asymptotic extraction is made in the integrand. The electric field components on the interface in the spatial domain are calculated directly and tabulated. They are then used in the computation of impedance matrix elements of nonoverlap patches in the spatial domain by simple quadrature integration over the spatial extent of the testing and the basis functions. Numerical results for electric surface fields of the spatial Green's functions and impedance matrix elements are illustrated for a distance range from 0.02 to 1.5 free‐space wavelengths. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 20: 90–97, 1999.