MRI apparatus and amplifying apparatus
US12360186B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2023 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Oct 6, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/451
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In one embodiment, an MRI apparatus includes: an RF coil configured to apply a radio frequency (RF) signal of a Larmor frequency of a spin species in an object; and an amplifying apparatus configured to amplify the RF signal and supply the amplified RF signal to an output that is connectable to a load (80) that includes at least the RF coil and the object, wherein: the amplifying apparatus includes two amplification circuits provided in parallel and an impedance transformation circuit; and the impedance transformation circuit is provided between the load and an output terminal of one of the two amplification circuits such that a polarity of reactance as viewed from an output terminal of one of the two amplification circuits toward the load is opposite to a polarity of reactance as viewed from an output terminal of another of the two amplification circuits toward the load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.