Patent · US Expired

Magnetic resonance antenna

US6943551B2 · kind B2 · utility

45Cited by

6References

24Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Ludwig Eberler · Dresden, DE
Razvan Lazar · Erlangen, DE
Jürgen Nistler · Erlangen, DE
Günther Zebelein · Steinfeld (Oldenburg), DE

Key dates

Filing date	Mar 26, 2004
Grant date	Sep 13, 2005
Priority date	—
Expiry date	Mar 26, 2024

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/34046
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A magnetic resonance antenna has longitudinal antenna rods in a birdcage structure, and antenna ferrules connecting the longitudinal antenna rods at their ends in terms of radio-frequency. The magnetic resonance antenna has a number of radio-frequency switching elements that interrupt, in terms of radio-frequency, at least one part of the longitudinal antenna rod to detune the eigen-resonance frequency of the antenna with respect to an operating magnetic resonance frequency. For this purpose, the magnetic resonance antenna is provided with two switching lines, directed to the radio-frequency switching elements from outside of the birdcage structure, the switching lines having a ring line connected thereto running annularly on or in the birdcage structure and transverse to the longitudinal antenna rods.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.