Stripline antenna and antenna array for a magnetic resonance device
First Claim
1. An antenna for a magnetic resonance device which has a predetermined sensitivity and is arranged for at least one of generating and receiving alternating magnetic fields in the near field of the antenna for at least one of exciting and detecting a magnetic resonance in an object to be examined, comprising:
- a strip line resonator which comprises at least one strip line constructed of a waveguide, wherein the strip line resonator extends along a planar reference surface and is resonantly tuned with an appropriate termination establishing a sensitivity profile of said strip line resonator, anda conductor loop arrangement which comprises a conductor, is disposed adjacent to the strip line resonator and forms at least one closed conductor loop establishing a sensitivity profile of said conductor loop arrangement, wherein the at least one closed conductor loop surrounds the strip line resonator in the planar reference surface and is interrupted by at least one capacitor,wherein the sensitivity of the antenna is formed by overlapped sensitivity profiles of the strip line resonator and the conductor loop arrangement, andwherein the at least one conductor loop is formed with a layered conductor.
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Accused Products
Abstract
An antenna (100) for a magnetic resonance device has a predetermined sensitivity and is designed to excite and/or detect a magnetic resonance in an object under test. The antenna (100) includes a stripline resonator (10) that is equipped with at least one stripline (11), and a conductor loop arrangement (20) that adjoins the stripline resonator (10) and forms at least one conductor loop (21, 22, 28) which is interrupted by at least one capacitor (23). The sensitivity of the antenna (100) is formed by overlapping sensitivity profiles of the stripline resonator (10) and the conductor loop arrangement (20). Also described are an antenna array (200) including a plurality of antennas (100), a magnetic resonance device (300) including at least one antenna (100) or antenna array (200), and methods for magnetic resonance imaging or magnetic resonance spectroscopy.
42 Citations
25 Claims
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1. An antenna for a magnetic resonance device which has a predetermined sensitivity and is arranged for at least one of generating and receiving alternating magnetic fields in the near field of the antenna for at least one of exciting and detecting a magnetic resonance in an object to be examined, comprising:
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a strip line resonator which comprises at least one strip line constructed of a waveguide, wherein the strip line resonator extends along a planar reference surface and is resonantly tuned with an appropriate termination establishing a sensitivity profile of said strip line resonator, and a conductor loop arrangement which comprises a conductor, is disposed adjacent to the strip line resonator and forms at least one closed conductor loop establishing a sensitivity profile of said conductor loop arrangement, wherein the at least one closed conductor loop surrounds the strip line resonator in the planar reference surface and is interrupted by at least one capacitor, wherein the sensitivity of the antenna is formed by overlapped sensitivity profiles of the strip line resonator and the conductor loop arrangement, and wherein the at least one conductor loop is formed with a layered conductor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An antenna for a magnetic resonance device which has a predetermined sensitivity and is arranged for at least one of exciting and detecting a magnetic resonance in an object to be examined, comprising:
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a strip line resonator which comprises at least one strip line, wherein the strip line resonator extends along a planar reference surface, and a conductor loop arrangement which comprises a conductor, is disposed adjacent to the strip line resonator and forms at least one closed conductor loop, wherein the at least one closed conductor loop surrounds the strip line resonator in the planar reference surface and is interrupted by at least one capacitor, wherein the sensitivity of the antenna is formed by overlapped sensitivity profiles of the strip line resonator and the conductor loop arrangement, and wherein the at least one conductor loop is formed with a layered conductor wherein the at least one conductor loop comprises at least one ring or at least one polygon and wherein;
(a) at least one of the at least one ring or at least one of the at least one polygon overlap one another or are disposed at a mutual spaced interval, and (b) at least one of the at least one ring or at least one of the at least one polygon comprise a loop form having at least two holes.
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25. An antenna for a magnetic resonance device which has a predetermined sensitivity and is arranged for at least one of exciting and detecting a magnetic resonance in an object to be examined, comprising:
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a strip line resonator which comprises at least one strip line, wherein the strip line resonator extends along a planar reference surface, and a conductor loop arrangement which comprises a conductor, is disposed adjacent to the strip line resonator and forms at least one closed conductor loop, wherein the at least one closed conductor loop surrounds the strip line resonator in the planar reference surface and is interrupted by at least one capacitor, wherein the sensitivity of the antenna is formed by overlapped sensitivity profiles of the strip line resonator and the conductor loop arrangement, and wherein the at least one conductor loop is formed with a layered conductor, the antenna comprising several conductor loops, wherein;
(a) a first one of the conductor loops comprises a loop form having at least two holes, (b) a second one of the conductor loops comprises a ring or a polygon, and (c) several conductor loops are provided which are disposed one above another.
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Specification