Abstract #1862

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

Elmar Fischer¹, Andreas Peter², Daniel Sonner³, Hermann Massler³, Jan G. Korvink^2,4, 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.