Patent ID: 7248051
Filing Date: 2007-07-24
Classification: G01R

Abstract:
1. A receiver coil array for a magnetic resonance imaging system, comprising: a plurality of receiver coil circuits adapted to simultaneously receive magnetic resonance signals emitted from a subject, each of said receiver coil circuits comprising a tuning circuit comprising a tuning capacitor, a detuning circuit comprising a diode, and a matching circuit; and a decoupling circuit for countering coupling among said plurality of receiver coil circuits that occurs when multiple receiver coil circuits in said plurality of receiver coil circuits simultaneously receive said magnetic resonance signals, said decoupling circuit comprising, between each and every two of said plurality of receiver coil circuits, a pair of decoupling capacitors, a first decoupling capacitor in each pair having both ends grounded through respective diodes of respective detuning circuits in different ones of said receiver coil circuits, and a second decoupling capacitor in each pair having both ends grounded through respective tuning capacitors of respective tuning circuits of different ones of said receiver coil circuits.