ANTENNA STRUCTURE FOR A NEAR-FIELD COMMUNICATION DEVICE
First Claim
1. A near field communication (NFC) communicator, comprising:
- a housing;
an antenna circuit located in said housing to enable inductive coupling of a near field electromagnetic signal with another antenna circuit in near field range, said antenna circuit including an antenna element to generate the electromagnetic signal;
an NFC controller circuit located in the housing fur generating the near field electromagnetic signal, extracting data from modulation induced in the electromagnetic signal caused by the inductive coupling of the near field electromagnetic signal with another antenna circuit, and energy harvesting; and
a shielding arrangement located in the housing and disposed between the antenna element and the receiver circuit such that a gap is maintained between the antenna element and the shielding arrangement.
2 Assignments
0 Petitions
Accused Products
Abstract
A near field communication (NFC) communicator includes a housing, an NFC controller and an antenna circuit located in the housing. The antenna circuit enable inductive coupling of a near field electromagnetic signal with another antenna circuit in near field range. The antenna circuit includes an antenna element to generate the electromagnetic signal. The communicator also includes a receiver circuit located in the housing for extracting data from modulation induced in the electromagnetic signal which is caused by the inductive coupling of the near field electromagnetic signal with another antenna circuit, a transmitter circuit to generate the near field, a load modulator to modulate the near field to the reader and an energy harvesting circuit to power the rest of the circuit from the external field. A ferrite sheet is located in the housing such that a gap is maintained between the antenna element and the ferrite sheet.
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Citations
20 Claims
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1. A near field communication (NFC) communicator, comprising:
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a housing; an antenna circuit located in said housing to enable inductive coupling of a near field electromagnetic signal with another antenna circuit in near field range, said antenna circuit including an antenna element to generate the electromagnetic signal; an NFC controller circuit located in the housing fur generating the near field electromagnetic signal, extracting data from modulation induced in the electromagnetic signal caused by the inductive coupling of the near field electromagnetic signal with another antenna circuit, and energy harvesting; and a shielding arrangement located in the housing and disposed between the antenna element and the receiver circuit such that a gap is maintained between the antenna element and the shielding arrangement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A short-range communications-enabled device, comprising:
a housing; a radio transmitter and receiver for respectively sending and receiving RF signals over a wireless communication network; a short-range communication component located in the housing for establishing short range communication with a second short-range enabled device that is located within short range, said short-range communication component includes an antenna element for generating an electromagnetic signal that is used to establish the short range communication and a receiver circuit for extracting information obtained from the second short-range enabled device; and a shielding arrangement located in the housing and disposed between the antenna element and the receiver circuit such that a gap is maintained between the antenna element and the shielding arrangement. - View Dependent Claims (14, 15)
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16. A mobile communications device, comprising:
a housing; a radio transmitter and receiver for respectively sending and receiving RF signals over a wireless communication network; a short-range communication component located in the housing for establishing short range communication with a second short-range enabled device that is located within short range, said short-range communication component includes an antenna element for generating an electromagnetic signal that is used to establish the short range communication and at least one printed circuit board on which active electronic elements are located to process short range communication signals received from the second short-range enabled device that is located within short range; and a high magnetic permeability sheet located in the housing and disposed between the antenna element and the at least one printed circuit board; and a nonconductive material located between the antenna element and the high magnetic permeability. - View Dependent Claims (17, 18, 19, 20)
Specification