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Computation of electromagnetic fields in large biological bodies by an iterative moment method with a restart technique

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2 Author(s)
Wang, J.J.H. ; Georgia Tech. Res. Inst., Georgia Inst. of Technol., Atlanta, GA, USA ; Dubberley, J.R.

The computation of electromagnetic (EM) fields in a large, three-dimensional arbitrarily shaped dielectric or biological body is made practical by a conjugate gradient algorithm with a restart technique. This algorithm allows the operator to run the program for large bodies in a measured and controlled manner, minimizing the computing cost and avoiding the crashes inherent in an extended computer run. It is shown that in achieving convergence, a good initial guess plays only a very minor role while the G(n) and A(n) functions are crucial to the convergence in the conjugate gradient algorithm and must be included in the restart

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:37 ,  Issue: 12 )