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Asymptotic closed‐form representation of the spatial microstrip dyadic green's function
Author(s) -
Popovski Borislav,
Toscano Alessandro,
Vegni Lucio
Publication year - 1995
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/mop.4650080214
Subject(s) - representation (politics) , microstrip , moment (physics) , microstrip antenna , function (biology) , field (mathematics) , plane (geometry) , method of moments (probability theory) , coupling (piping) , antenna (radio) , electromagnetic field , mathematics , mathematical analysis , topology (electrical circuits) , geometry , computer science , optics , physics , telecommunications , engineering , pure mathematics , classical mechanics , combinatorics , estimator , law , biology , evolutionary biology , political science , mechanical engineering , statistics , politics , quantum mechanics
An asymptotic closed‐form representation of the spatial microstrip dyadic Green's function is developed. This representation is very efficient for a numerical evaluation of the field when the source and the observation points are laterally rather than vertically separated with respect to the interface plane. Numerical examples are presented that indicate that the representations obtained are very efficient even for relatively small lateral separation of the source and field points. This work is especially useful in the moment‐method analysis of microstrip antenna arrays where the mutual coupling effects are important.