Multi-loop receiver coil having a large tuning range for a...

Details Multi-loop receiver coil having a large tuning range for a... Multi-loop receiver coil having a large tuning range for a...

2007-08-07

2007-08-07

Shrivastav, Brij (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

Reexamination Certificate

active

11156208

ABSTRACT:
A receiver coil loop for a magnetic resonance imaging system has a tuning loop for adjusting a tuning capacitor to make the tuning loop resonate at a center frequency a detuning loop for maintaining the receiver coil loop in a non-working state when the transmitter coil is emitting signals, and a matching loop for matching the tuning loop at the center frequency. The tuning loop and the detuning loop share a capacitor, and the tuning capacitor and the shared capacitor are connected in parallel. In such a receiver coil loop, the value of the tuning capacitor is reduced, the frequency tuning range of the tuning capacitor is broadened; the capacitive reactance generated by the entire circuit is reduced, and the tuning capacitor Ctuning is protected against breakdown under high voltage without increasing the loss of the circuit.

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patent: 6633161 (2003-10-01), Vaughan, Jr.

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