MULTIPLE-TURN LOOP ANTENNA ARRANGEMENT AND A PORTABLE RADIO COMMUNICATION DEVICE COMPRISING SUCH AN ARRANGEMENT
First Claim
Patent Images
1. A multiple-turn loop antenna arrangement comprising:
- a multiple-turn loop element arranged in a first layer; and
a ground plane element arranged in a second layer;
wherein;
the first and second layers are arranged in parallel;
the multiple-turn loop element is arranged on top of the ground plane element; and
the ground plane element comprises slots for interrupting eddy currents in the ground plane element, which would short signals in the multiple-turn loop element.
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Abstract
An exemplary embodiment includes a multiple-turn loop antenna arrangement comprising a multiple-turn loop element. The multiple-turn loop element is arranged in a first layer. A ground plane element is arranged in a second layer. The first and second layers are arranged in parallel. The multiple-turn loop element is arranged on top of the ground plane element. The ground plane element comprises slots interrupting eddy currents in the ground plane element, which would short signals in the multiple-turn loop element.
7 Citations
20 Claims
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1. A multiple-turn loop antenna arrangement comprising:
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a multiple-turn loop element arranged in a first layer; and a ground plane element arranged in a second layer; wherein; the first and second layers are arranged in parallel; the multiple-turn loop element is arranged on top of the ground plane element; and the ground plane element comprises slots for interrupting eddy currents in the ground plane element, which would short signals in the multiple-turn loop element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A portable radio communication device comprising:
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a metal casing; and a multiple-turn loop element arranged on the metal casing; wherein the metal casing forms a ground plane element having slots arranged along the inside of the multiple-turn loop element; whereby the slots are operable for interrupting eddy currents in the ground plane element. - View Dependent Claims (16, 17, 18)
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19. A portable radio communication device comprising:
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a metal casing; and a multiple-turn loop element arranged on the metal casing; wherein the metal casing forms a ground plane element having slots arranged along the inside of at least two parallel sides of the multiple-turn loop element, and the multiple-turn element is an NFC antenna; whereby the slots are operable for preventing eddy currents induced in the ground plane element NFC operation. - View Dependent Claims (20)
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Specification