Orbit antenna for a nuclear magnetic resonance (NMR) imaging apparatus
US4739269A · kind A · utility
19Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 5, 1987 |
| Grant date | Apr 19, 1988 |
| Priority date | — |
| Expiry date | Jan 5, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3621
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An orbit antenna for a nuclear magnetic resonance (NMR) imaging apparatus is symmetrized by joining together two concentric conductive loops in series. The antenna is frequency-tuned by a capacitor placed in parallel between the non-interconnected ends of the loops. A receiving circuit having a high input impedance is connected between the midpoint of the loops and one of the capacitor terminals. It is thus shown that the antenna is not unbalanced and endows the received signal with all the advantages of symmetrized antennas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.