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Abstract #1862

Miniaturized Two-Stage Preamplifiers for Receive-Array Coils at 400 MHz

Elmar Fischer1, Andreas Peter2, Daniel Sonner3, Hermann Massler3, Jan G. Korvink2,4, Jrgen Hennig1, Maxim Zaitsev1

1Radiology, University Medical Center Freiburg, Freiburg, Germany; 2Microsystems Engineering IMTEK, University of Freiburg, Freiburg, Germany; 3Hochfrequenz-Bauelemente und -Schaltungen, Fraunhofer IAF, Freiburg, Germany; 4Freiburg Institute of Advanced Studies (FRIAS), University of Freiburg, Freiburg, Germany

This work is on the implementation of miniaturized two-stage preamplifiers for 9.4 T (400 MHz), intended to be used for each coil, respectively, in multi-parallel receive array coils. Amplifier performance has been tested successfully with signals of up to eight coils of a receive array with eight preamplifiers in parallel. Amplifier performance could be verified for magnetic fields up to 9.4 T.