NFC antenna and mobile terminal

An antenna and terminal technology, which is applied in the directions of antenna, loop antenna, antenna coupling, etc., and can solve problems such as metal rear shell openings
CN106887708AActive Publication Date: 2017-06-23VIVO MOBILE COMM CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
VIVO MOBILE COMM CO LTD
Publication Date
2017-06-23

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Abstract

The invention provides an NFC antenna and a mobile terminal. The NFC antenna is provided with first and second NFC antenna branches, the coiling direction of the first NFC antenna branch is opposite to that of the second NFC antenna branch, the first NFC antenna branch is arranged on a metal backshell of a first terminal, the second first NFC antenna branch is arranged on a nonmetal backshell of a second terminal, a first hole is formed in the metal backshell of the first terminal, the first NFC antenna branch is arranged around the first hole, so that the direction of a magnetic field generated in the surrounding of the first hole is the same with that of a magnetic field of the second NFC antenna branch, the magnetic field generated by the second NFC antenna branch is overlapped positively, and thus, the induction distance of the NFC antenna is improved, shielding for a magnetic field of the NFC antenna by the metal backshell of the first terminal is weakened, and the problem that gaps need to be formed in the backshells of the terminals is solved.
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Description

technical field

[0001] The embodiments of the present invention relate to the application field of antenna technology, and in particular to an NFC antenna and a mobile terminal. Background technique

[0002] Today, when mobile terminals are widely used, there are more and more mobile terminals with metal back shells. Antenna is a device used to send and receive signals in mobile terminals. Near Field Communication (Near Field Communication, NFC for short) antennas can realize For short-range wireless communication of mobile terminals, the NFC antenna is usually built into the metal casing of the mobile terminal at present.

[0003] In the prior art, when the NFC antenna is placed inside the metal back shell of the mobile terminal, the metal back shell will shield the magnetic field of the NFC antenna, and an eddy current opposite to the current of the NFC coil included in the NFC antenna will be generated, and the magnetic field generated by the eddy current will be Cancel ...

Claims

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