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Abstract #2722

An Automated Framework to Decouple PTx Arrays with Many Channels

Zohaib Mahmood1, Bastien Gurin2, Elfar Adalsteinsson1, 3, Lawrence L. Wald, 23, Luca Daniel1

1Dept of Electrical Engineering & Computer Science, Massachusetts Institute of Technology, Cambridge, MA, United States; 2Martinos Center for Biomedical Imaging, Dept. of Radiology, Massachusetts General Hospital, Charlestown , MA, United States; 3Harvard-MIT Division of Health Sciences Technology, Cambridge, MA, United States

In this paper we present an algorithm to automatically design a decoupling matrix for pTx arrays with many channels. The algorithm optimally selects the decoupling matrix based on the constraints defined on network such as reciprocity, passivity and the network being lossless. We show that our algorithm converges and the decoupling matrix achieves ideal decoupling. We explore various useful features of the decoupling network by analyzing L-curves and singular values. However the problem of realizing the optimal decoupling matrix using practical circuits is still open and is currently work in progress.