The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 1998
Filed:
Nov. 14, 1996
Jeroen Snelten, Eindhoven, NL;
Peter H Wardenier, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
Magnetic resonance includes predetermined frequency and which is connected, via a connection circuit (14), to a transmission and/or receiving device (11, 13) for RF signals, said connection circuit comprising a coaxial cable (41) having a central conductor (45) and a conductor sheath (47) which coaxially encloses the central conductor. Over at least a part of its length the coaxial cable (41) is enclosed, by a tubular conductor (49) having first and second ends (51, 53), a dielectric (50) being present between the conductor sheath (47) and the tubular conductor. The tubular conductor (49) has an electrical length equal to one quarter of the wavelength in the dielectric (50) of electromagnetic radiation of the predetermined frequency. The first end (51) of the tubular conductor (49) is directly electrically connected to the conductor sheath (47) and the second end (53) is connected to the conductor sheath via a capacitor (57). As a result, the physical length (1) of the tubular conductor (49) can be substantially shorter than its electrical length.