Patent · US Active

Tuning/detuning circuit and detuning method for an RF coil

US10677864B2 · kind B2 · utility

1Cited by

1References

5Claims

0Family size

Assignee

Siemens Healthcare Limited · DE

Inventors

Hou Quan Lin · Nanhu, CN
Ying Lun Wang · Beijing, CN
Wen Ming Li · Nanhu, CN
Jianmin Wang · Lo Wu, CN
Juergen Nistler · Erlangen, DE

Key dates

Filing date	Mar 30, 2018
Grant date	Jun 9, 2020
Priority date	—
Expiry date	Apr 1, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH03H1/0007
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A tuning/detuning structure and a detuning method for an RF coil use an RF power source, a first impedance circuit, a first RF line, and a first port having a first guide leg end and a first input end, with the first guide leg end being connected to a first end ring capacitance of the RF coil. When the RF coil needs to be detuned, the first input end is connected to the first impedance circuit via the first RF line. When the RF coil needs to transmit an RF pulse signal, the first input end is connected to the RF power source via the first RF line. The need for a switch element is thereby reduced as is harm resulting from breakdown of such a switch element. An impedance circuit can be combined with a switch element to realize detuning jointly, and a good detuning effect can be achieved by a small number of switch elements.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.