Patent · US Active

Transmission path for use in RF fields

US7777588B2 · kind B2 · utility

3Cited by

4References

17Claims

0Family size

Assignee

KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

Bernhard Gleich · Hamburg, DE
Peter Vernickel · Hamburg, DE
Steffen Weiss · Eindhoven, NL
Kai-Michael Luedeke · Hamburg, DE

Key dates

Filing date	Dec 15, 2005
Grant date	Aug 17, 2010
Priority date	—
Expiry date	Mar 22, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/3642
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A transmission path (13) for transmitting high frequency (RF) signals is disclosed, which comprises a plurality of lead segments (20, 21, 22) which are coupled to one another on one end by a capacitive coupling element (30) and on the other end by an inductive coupling element (31) and which each have an effective length of approximately λi/4, wherein λi is the wavelength of a differential mode signal to be transmitted over the path (13). By providing these element (30, 31) in the form of distributed elements which electrically extend over at least a part of adjacent lead segments (20, 21; 21, 22) a very thin transmission path (13) can be realized, which is especially suitable for use with invasive catheters. Furthermore, this path (13) can be guided through RF fields of a magnetic resonance (MR) imaging system because common mode resonances are effectively suppressed.

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