Pin diode current reduction for MRI transmit coils
US12292489B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 7, 2023 |
| Grant date | May 6, 2025 |
| Priority date | — |
| Expiry date | Jul 31, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3657
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Various embodiments of the present disclosure are directed to a magnetic resonance imaging (MRI) radio frequency (RF) coil comprising a current-control circuit. A conductive trace forms a coil inductor and comprises a first trace segment and a second trace segment separated by the current-control circuit, which comprises a first reactive element and a circuit branch. The first reactive element is electrically coupled from the first trace segment to the second trace segment, and the circuit branch is electrically coupled in parallel with the first reactive element. The circuit branch comprises a second reactive element and a sub-circuit branch electrically coupled in parallel. The sub-circuit branch comprises a third reactive element and an electronic switch (e.g., a PIN diode) electrically coupled in series. The first reactive element and the third reactive element are one of capacitive and inductive, and the second reactive element is another one of capacitive and inductive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.