Portable device and near field communication chip
First Claim
Patent Images
1. An antenna arrangement comprising:
- a primary antenna having a conductive sidewall, the conductive sidewall including at least two terminals and not including a slit;
a loop antenna in and physically separated from the primary antenna, the loop antenna including a first conductive loop and a capacitor electrically connected between ends of the first conductive loop; and
a second conductive loop around the loop antenna, a first end of the second conductive loop connected to a first terminal of a near field communication (NFC) chip to which a first terminal of the two terminals is connected, and a second end of the second conductive loop connected to a second terminal of the NFC chip to which a second terminal of the two terminals is connected.
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Abstract
In one embodiment, the antenna arrangement includes a primary antenna having a conductive sidewall; and a loop antenna disposed in and physically separated from the primary antenna. The loop antenna includes a first conductive loop and a capacitor electrically connected between ends of the first conductive loop.
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Citations
16 Claims
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1. An antenna arrangement comprising:
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a primary antenna having a conductive sidewall, the conductive sidewall including at least two terminals and not including a slit; a loop antenna in and physically separated from the primary antenna, the loop antenna including a first conductive loop and a capacitor electrically connected between ends of the first conductive loop; and a second conductive loop around the loop antenna, a first end of the second conductive loop connected to a first terminal of a near field communication (NFC) chip to which a first terminal of the two terminals is connected, and a second end of the second conductive loop connected to a second terminal of the NFC chip to which a second terminal of the two terminals is connected. - View Dependent Claims (2, 3, 4, 16)
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5. A portable device, comprising:
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a near field communication (NFC) chip; a case configured to generate a first magnetic field based on an electrical signal from the NFC chip, the case including a conductive sidewall, the conductive sidewall including at least two terminals and not including a slit; a loop antenna physically separated from the NFC chip and the case, and the loop antenna configured to magnetically couple to the case such that the loop antenna forms a second magnetic field in response to the first magnetic field; and a second conductive loop around the loop antenna, a first end of the second conductive loop connected to a first terminal of the NFC chip to which a first terminal of the two terminals is connected, and a second end of the second conductive loop connected to a second terminal of the NFC chip to which a second terminal of the two terminals is connected. - View Dependent Claims (6, 7, 8, 9)
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10. A portable device, comprising:
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a case including a conductive material, the case having at least two terminals and a sidewall of the case not including a slit; a near field communication (NFC) device electrically connected to the two terminals of the case, the NFC device configured to provide an electrical signal to the case such that the case radiates a first magnetic field based on the electrical signal; and a loop antenna disposed inside the case, the loop antenna configured to magnetically couple to the case such that the loop antenna forms a second magnetic field in response to the first magnetic field; and a second conductive loop around the loop antenna, a first end of the second conductive loop connected to a first terminal of the NFC device to which a first terminal of the two terminals is connected, and a second end of the second conductive loop connected to a second terminal of the NFC device to which a second terminal of the two terminals is connected. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification