ANTENNA SYSTEM AND METHOD FOR DETERMINING A TRANSIT OF A MOVABLE OBJECT THROUGH A DETECTION PLANE
First Claim
1. An antenna system for determining a transit of a movable object through a detection area within a detection plane, the antenna system comprising:
- at least one exciter antenna configured to provide an exciting electromagnetic field, wherein the exciting electromagnetic field or at least one spatial component thereof has a field strength above a field strength threshold in the detection area, wherein the exciting electromagnetic field is capable of exciting the movable object to emit an electromagnetic response signal comprising information on a position of the movable object; and
at least one magnetic core of a sensor antenna for receiving the electromagnetic response signal, wherein the at least one magnetic core is positioned in a region of the exciting electromagnetic field where the field strength of the exciting electromagnetic field or at least one spatial component thereof is below the field strength threshold.
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Abstract
Embodiments relate to a concept for determining a transit of a movable object through a detection area within a detection plane. At least one exciter antenna provides an exciting electromagnetic field. The exciting electromagnetic field or at least one spatial component thereof has a field strength above a field strength threshold in the detection area. The exciting electromagnetic field is capable of exciting the movable object to emit an electromagnetic response signal comprising information on a position of the movable object. At least one sensor antenna comprising a magnetic core receives the electromagnetic response signal. The at least one magnetic core is positioned in a region of the exciting electromagnetic field where the field strength of the exciting electromagnetic field or the at least one spatial component thereof is below the field strength threshold.
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Citations
15 Claims
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1. An antenna system for determining a transit of a movable object through a detection area within a detection plane, the antenna system comprising:
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at least one exciter antenna configured to provide an exciting electromagnetic field, wherein the exciting electromagnetic field or at least one spatial component thereof has a field strength above a field strength threshold in the detection area, wherein the exciting electromagnetic field is capable of exciting the movable object to emit an electromagnetic response signal comprising information on a position of the movable object; and at least one magnetic core of a sensor antenna for receiving the electromagnetic response signal, wherein the at least one magnetic core is positioned in a region of the exciting electromagnetic field where the field strength of the exciting electromagnetic field or at least one spatial component thereof is below the field strength threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for determining a transit of a movable object through a detection area within a detection plane, the method comprising:
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providing, by means of at least one exciter antenna, an exciting electromagnetic field, wherein the exciting electromagnetic field or at least one spatial component thereof has a field strength above a field strength threshold in the detection area, wherein the exciting electromagnetic field is capable of exciting the movable object to emit an electromagnetic response signal comprising information on a position of the movable object; and receiving, by means of at least one sensor antenna comprising a magnetic core, the electromagnetic response signal, wherein the at least one magnetic core is positioned in a region of the exciting electromagnetic field where the field strength of the exciting electromagnetic field or at least one spatial component thereof is below the field strength threshold.
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Specification