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Symmetry considerations applied to 3‐D dyadic Green's functions for three‐port inhomogeneous microstrip ferrite circulator
Author(s) -
Krowne Clifford M.
Publication year - 1998
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(19981020)19:3<227::aid-mop16>3.0.co;2-z
Subject(s) - circulator , ferrite (magnet) , microstrip , port (circuit theory) , symmetry (geometry) , physics , electrical engineering , electronic engineering , materials science , engineering , mathematics , geometry
Compacted perimeter 3‐D dyadic Green's functions are derived under threefold symmetry for a circular ferrite circulator which is radially inhomogeneous. It is demonstrated how the perpendicular electric field, and therefore the s ‐parameters, may be determined with these dyadic Green's functions. A large reduction in the number of dyadic Green's function elements required for numerical evaluation results, simplifying all formulas dependent upon these elements. © 1998 John Wiley & Sons, Inc. Microwave Opt Technol Lett 19: 227–229, 1998. This article is a US Government work and, as such, is in the public domain in the United States of America.