Network to cancel coupling between channels of quadrature antenna coil assembly in a magnetic resonance imaging system
US4769605A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 26, 1986 |
| Grant date | Sep 6, 1988 |
| Priority date | — |
| Expiry date | Nov 26, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3678
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a quadrature antenna coil assembly of a magnetic resonance imaging system, the antenna coil assembly having a first receiver coil and a second receiver coil and having external coupling between the first and second receiver coils, a coupling cancellation network has a first set of terminals connected across the first receiver coil, a second set of terminals connected across the second receiver coil, and circuitry, connected between the first and second terminal sets, for generating additional coupling between the first and second receiver coils in opposite polarity and equal magnitude to the external coupling to cancel the external coupling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.