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A kind of nfc/rfid antenna device and mobile terminal thereof

An antenna device and mobile terminal technology, applied in the field of communication, can solve problems such as affecting the appearance and reducing the strength of the casing, and achieve the effects of improving performance, increasing radiation area, and increasing communication distance

Inactive Publication Date: 2017-03-22
SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the problems existing in the above-mentioned prior art, and proposes an NFC / RFID antenna device and its mobile terminal, which does not need to open holes and slots on the metal shell, and solves the problem in the prior art that needs to be opened on the metal shell. The groove not only affects the appearance but also reduces the strength of the shell

Method used

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  • A kind of nfc/rfid antenna device and mobile terminal thereof
  • A kind of nfc/rfid antenna device and mobile terminal thereof
  • A kind of nfc/rfid antenna device and mobile terminal thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The structural diagram of the NFC / RFID antenna device of this embodiment is as follows figure 2 As shown, its assembled front view is shown as image 3 As shown, the rear view is as Figure 4 As shown, the coupling structure of this embodiment is a slot 31 . It includes: a metal casing 1, an antenna coil 2 and a metal radiator 3, the metal radiator 3 is provided with a slot 31, the slot 31 does not overlap with the metal casing 1, and is exposed outside the metal casing 1; the metal radiator 3 and the The metal shell 1 is electrically connected by welding.

[0048] In different embodiments, the slot 31 may partially overlap with the metal casing 1 . In this case, an opening may be provided on the metal casing 1 so that the slot 31 is completely exposed outside the metal casing 1 .

Embodiment 2

[0050] The structural diagram of the NFC / RFID antenna device of this embodiment is as follows Figure 5 As shown, its assembled front view is shown as Image 6 As shown, the rear view is as Figure 7 As shown, the coupling structure of this embodiment is set in the form of a slot 32 plus a hole 33 . It includes: a metal shell 1 , an antenna coil 2 and a metal radiator 3 . The metal radiator 3 is provided with an opening 32 and a slot 33 . The slot 33 communicates with the edge of the opening 32 and the metal radiator 3 . The antenna coil 2 is arranged behind the metal casing 1, and the metal radiator 3 is arranged behind the antenna body. The metal radiator 3 and the metal casing 1 are electrically connected through the welding point 12. The opening 32 of the metal radiator 3 in this embodiment is connected to the The antenna coil 2 is arranged concentrically, and the opening 32 on the metal radiator 3 partially overlaps with the metal casing 1 , that is, the opening 32 is p...

Embodiment 3

[0053] The schematic diagram of the decomposition structure of the NFC / RFID antenna device of this embodiment is as follows Figure 8 As shown, its assembled front view is shown as Figure 9 As shown, the rear view is as Figure 10 shown. The difference from Embodiment 2 is that the opening 32 on the metal radiator 3 is completely exposed outside the metal casing 1 , that is, the opening 32 does not overlap with the metal casing 1 , and the metal casing 1 does not have an opening 11 at this time.

[0054] In a preferred embodiment, the antenna coil 2 and the metal radiator 3 are arranged on the same substrate, which is convenient for manufacture and has a more stable structure; and a magnetic body is arranged behind the metal radiator 3, which can shield the remaining circuit boards of the mobile terminal from the antenna. The performance impact further improves the performance of the antenna.

[0055] In a preferred embodiment, the opening 32 on the metal radiator 3 is arr...

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PUM

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Abstract

The invention discloses a novel NFC / RFID antenna apparatus and a mobile terminal thereof. An antenna is applied to the mobile terminal comprising a metal housing; the antenna comprises a metal radiator and antenna coils, wherein the antenna coils are positioned between the metal radiator and the metal housing or the metal radiator is positioned between the antenna coils and the metal housing; the metal radiator and the antenna coils are coincided or partially coincided; the metal radiator is electrically connected with the metal housing; the metal radiator is provided with a coupling structure; the coupling structure is used for coupling induced current of the antenna coils onto the metal radiator; the mobile terminal comprises a metal housing; and the NFC / RFID antenna is arranged in the metal housing. According to the NFC / RFID antenna apparatus and the mobile terminal thereof, the metal radiator is arranged behind the antenna coils, and the metal radiator is electrically connected with the metal housing, so that a hole is not required to be formed in the metal housing; the communication distance of the antenna is increased, and the strength of the metal housing is not affected.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to an NFC / RFID antenna device and a mobile terminal thereof. Background technique [0002] In recent years, with the development of wireless terminals and communication technologies, near field communication (Near Field Communication, NFC) and radio frequency identification (Radio Frequency Identification, RFID) have been more and more developed and applied. As the radio frequency emitter of NFC / RFID, coils are increasingly used in mobile devices. [0003] Since electromagnetic waves cannot penetrate conductors, a wireless terminal including a metal shell will cause the NFC / RFID antenna to be unable to communicate with spaces other than metal. [0004] In order to solve the above problems, a current method is to open holes and grooves on the conductor to realize communication if the conductor such as a metal shell is on the other side of the communication. The scheme is as fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/24H01Q1/36
Inventor 蒋海英张国辉黄参陈德智
Owner SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS CO LTD