Patent ID: 8269498
Filing Date: 2012-09-18
Classification: G01R

Abstract:
1. A system for MR signal excitation and reception for a non-resonance imaging device, said system comprising: a non-resonant RF device; a first transmit/receive switch for connecting the non-resonant RF device to an RF power source and a first pre-amplifier; a second transmit/receive switch for connecting the non-resonant RF device to a terminator and a second pre-amplifier, wherein a power combiner has an impedance matched to a characteristic impedance of the non-resonant device; and the power combiner connected to the first and second transmit/receive switches, the power combiner configured to connect to an MR system, wherein during excitation of MR signals, the first transmit/receive switch connects the RF power source to the non-resonant RF device at a predetermined characteristic impedance, a residual RF power going to the terminator via the second transmit/receive switch, and wherein during reception MR signals from an excited sample are received by the non-resonant RF device, transmitted to the first and second pre-amplifiers through the first and second transmit/receive switches, equi-phased by a phase shifter or a phase delay line, and thereafter combined by the power combiner for transmission of the MR signals to the MR system.