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Author(s):
Lorenz, Petr; Russer, Peter 
Title:
Hybrid Transmission Line Matrix (TLM) and Multipole Expansion Method for Time-Domain Modeling of Radiating Structures 
Abstract:
To model radiating electromagnetic structures a hybrid method is introduced, where within a spherical region complex electromagnetic structures are modeled with the TLM method. Outside the spherical region the field is expanded into spherical waves. At the boundaries of the spherical region the TLM solution is matched to the multipole expansion of the field in the outer region. This yields a potentially exact modeling of the radiating boundary conditions. 
Keywords:
antenna radiation patterns, hybrid transmission line matrix, ladder networks, microstrip antennas, multipole expansion method, radiating electromagnetic structures, spherical region, spherical waves, time domain modeling, time-domain analysis, TLM, transmission line matrix methods 
Book / Congress title:
IEEE MTT-S International Microwave Symposium 
Volume:
Publisher address:
Philadelphia, PA, USA 
Year:
2004 
Month:
jun 
Pages:
1037--1040 
Print-ISBN:
0149-645X