Circularly polarizing local antenna for a nuclear magnetic resonance apparatus
US5280249A · kind A · utility
11Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 2, 1992 |
| Grant date | Jan 18, 1994 |
| Priority date | — |
| Expiry date | Nov 2, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/365
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a circularly polarizing local antenna for a nuclear magnetic resonance imaging apparatus, a first antenna system is fashioned as a frame coil. A second antenna system has two sub-coils arranged lying opposite one another, which are both penetrated by the frame coil. The combination of the first and second antenna systems exhibits a circularly polarizing characteristic in a volume that lies inside the frame coil and outside the subcoils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.