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Analysis of radiation from two separate circular cylindrical waveguides by the method of moments
Author(s) -
Cooray F. R.,
Bird T. S.
Publication year - 2000
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/1999rs900106
Subject(s) - method of moments (probability theory) , integral equation , radiation , surface (topology) , mathematics , mathematical analysis , boundary value problem , optics , boundary (topology) , numerical analysis , physics , geometry , statistics , estimator
A method of moments (MOM) technique is described for analyzing the radiation from two parallel perfectly conducting circular cylindrical waveguides whose apertures may be noncoplanar. By means of an equivalence principle and the appropriate boundary conditions, a set of integral equations is obtained with surface currents as the unknowns. These integral equations are solved by the MOM to yield the surface currents, from which the radiation patterns for the two waveguides are calculated. Numerical results are presented for two uniform waveguides and for two stepped waveguides. To validate the analysis, these results are compared with corresponding results obtained from other numerical methods and also with practical measurements.