CN207426153U

CN207426153U - A kind of communication terminal with NFC antenna

Info

Publication number: CN207426153U
Application number: CN201721368976.XU
Authority: CN
Inventors: 陈磊
Original assignee: Huizhou TCL Mobile Communication Co Ltd
Current assignee: Huizhou TCL Mobile Communication Co Ltd
Priority date: 2017-10-23
Filing date: 2017-10-23
Publication date: 2018-05-29
Anticipated expiration: 2027-10-23

Abstract

The utility model discloses a kind of communication terminals with NFC antenna, radio frequency line including being used to connect radio-frequency module and primary antenna, the radio frequency line includes inner wire and the metal outer conductor layer for being coated on the inner wire periphery, the communication terminal further includes NFC antenna, the NFC antenna includes signal source and radiator, wherein, the metal outer conductor layer is used to be used as the radiator, one end of the metal outer conductor layer is connected with the signal source, other end ground connection.The NFC antenna is by the use of the metal outer conductor layer of the radio frequency line of the communication terminal as radiator, with the smaller close range wireless communication function that the communication terminal is realized to the inner space occupancy of communication terminal and relatively low production cost.

Description

A kind of communication terminal with NFC antenna

Technical field

The utility model is related to fields of communication technology, more particularly to a kind of movement with NFC antenna to lead to Interrogate terminal.

Background technology

Close range wireless communication (Near Field Communication, NFC) technology has been widely used at present On communication terminal in the market, by setting NFC antenna, combining induction card reader, induction type card Piece and point-to-point function are realized and are identified in short distance with compatible equipment and data exchange, whole in these mobile communication In end, for NFC antenna frequently with the ferritic structure of coiled wire-wound coil collocation, production cost is higher, occupies movement The inner space of communicating terminal is more, and the lightening development trend with current mobile communication terminal is runed counter to.

Utility model content

In view of the deficiencies in the prior art, the utility model provides a kind of movement with NFC antenna and leads to Terminal is interrogated, the NFC antenna is by the use of the metal outer conductor layer of the radio frequency line of the communication terminal as spoke Beam realizes the purpose of the inner space for saving communication terminal and production material cost.

To achieve these goals, the utility model takes following technical solution：

A kind of communication terminal with NFC antenna, including being used to connect radio-frequency module and primary antenna Radio frequency line, the radio frequency line includes inner wire and is coated on the metal outer conductor layer of the inner wire periphery, and the movement is led to News terminal further includes NFC antenna, and the NFC antenna includes signal source and radiator, wherein, The metal outer conductor layer is used to be used as the radiator, and one end of the metal outer conductor layer is connected with the signal source, separately One end is grounded.

Preferably, the NFC antenna further includes current feed terminal and feedback ground terminal, and the current feed terminal is set It puts on one end of the metal outer conductor layer, the current feed terminal turns on one end of the metal outer conductor layer and the signal Source；Feedback ground terminal is arranged on the other end of the metal outer conductor layer, and the other end of the metal outer conductor layer passes through Feedback ground terminal is grounded.

Preferably, screw hole is provided on the current feed terminal, for being connected by screw the current feed terminal and described Signal source, and pass through screw and /V is carried out to the current feed terminal, screw hole is provided on feedback ground terminal, for passing through spiral shell Nail joint, and pass through screw and /V is carried out to feedback ground terminal.

Preferably, the communication terminal further includes mainboard, antenna platelet and primary antenna, is provided with and penetrates on the mainboard Frequency module, the primary antenna include feed shrapnel, and the feed shrapnel is arranged on the antenna platelet, the radio frequency line conducting The feed shrapnel and the radio-frequency module, the signal source are arranged on the mainboard, and feedback ground terminal is connected to described In the ground terminal of antenna platelet.

Preferably, the radio frequency line is the standard coaxial impedance line that resistance value is 50 ohm.

Preferably, the resonant frequency of the NFC antenna is 13.56Mhz.

Preferably, the length of the metal outer conductor layer corresponds to ripple for the resonant frequency of the NFC antenna Long twice.

In a kind of communication terminal with NFC antenna provided by the utility model, it is described closely Wireless communication antenna is by the use of the metal outer conductor layer of the radio frequency line of the communication terminal as radiator, with smaller to moving The inner space occupancy of dynamic communicating terminal and relatively low production cost realize the near radio of the communication terminal Communication function.

Description of the drawings

Fig. 1 is NFC antenna and radio frequency line in the communication terminal that the utility model embodiment provides Connection diagram；

Fig. 2 is the sectional view of the radio frequency line in the communication terminal that the utility model embodiment provides.

Specific embodiment

To make the purpose of this utility model, technical solution and advantage clearer, below in conjunction with the accompanying drawings to the utility model Specific embodiment be described in detail.The example of these preferred embodiments is illustrated in the accompanying drawings.Institute in attached drawing Show what is be merely exemplary with the embodiment of the utility model described with reference to the accompanying drawings, and the utility model is not limited to this A little embodiments.

Here, it should also be noted that, in order to avoid because having obscured the utility model during unnecessary details, in the accompanying drawings The structure and/or processing step closely related with scheme according to the present utility model are illustrate only, and is omitted and this practicality The little other details of new relationship.

Shown referring to Figures 1 and 2, the utility model embodiment is provided including being used to connecting radio-frequency module and primary antenna Radio frequency line 1, the radio frequency line 1 includes inner wire 11 and the metal outer conductor layer 12 for being coated on 11 periphery of inner wire, described Communication terminal further includes NFC antenna 2, and the NFC antenna 2 includes signal source and radiation Body, wherein, the metal outer conductor layer 12 is used to be used as the radiator, one end and the letter of the metal outer conductor layer 12 The connection of number source, other end ground connection.

In above-mentioned communication terminal, the NFC antenna 2 is with the metal outer conductor layer of the radio frequency line 1 12 are used as radiator, then by the length and antenna match of the metal outer conductor layer 12 to the close range wireless communication day Line 2 is tuned, and 2 resonance of NFC antenna is made to lead in corresponding frequency range compared to traditional near radio The coiled wire-wound coil that Iflytech's line uses combines ferritic design, and the NFC antenna 2 saves radiation body portion The inner space of communication terminal is occupied, and saves production material cost, is conducive to provided by the utility model described Communication terminal is towards lightening development.

Specifically, the radio frequency line 1 further includes substrate layer 13, and the substrate layer 13 is coated on the outer of the inner wire 11 Week, the metal outer conductor layer 12 are coated on the periphery of the substrate layer 13.In the present embodiment, in order to protect outside the metal Conductor layer 12, the outside of the metal outer conductor layer 12 also need to cover a layer insulating.

Further, the NFC antenna 2 further includes current feed terminal 21 and feedback ground terminal 22, the feed Terminal 21 is arranged on one end of the metal outer conductor layer 12, and the current feed terminal 21 turns on the metal outer conductor layer 12 One end and the signal source；Feedback ground terminal 22 is arranged on the other end of the metal outer conductor layer 12, outside the metal The other end of conductor layer 12 is grounded by feedback ground terminal 22.In the present embodiment, the current feed terminal 21 and feedback ground The shape of terminal 22 is rectangular.

Further, screw hole is provided on the current feed terminal 21, for being connected by screw the current feed terminal 21 and the signal source, and pass through screw and /V is carried out to the current feed terminal 21, it is provided with screw on feedback ground terminal 22 Hole for being grounded by screw, and passes through screw and carries out /V to feedback ground terminal 22.Wherein, the current feed terminal 21 The size of the screw hole of screw hole and feedback ground terminal 22 should be according to the size of screw, the current feed terminal 21 and feedback ground terminal The area of son 22 is configured, and the current feed terminal 21 is made to would be fixedly, stationarily connected to the signal source, and makes feedback ground terminal 22 steady Admittedly be grounded.

In the present embodiment, the radio frequency line 1 is the standard coaxial impedance line that resistance value is 50 ohm.

Specifically, the communication terminal further includes mainboard, antenna platelet and primary antenna, is provided with and penetrates on the mainboard Frequency module, the primary antenna include feed shrapnel, and the feed shrapnel is arranged on the antenna platelet, and the radio frequency line 1 is led The logical feed shrapnel and the radio-frequency module, the signal source are arranged on the mainboard, and feedback ground terminal 22 is connected to In the ground terminal of the antenna platelet.Wherein, the both ends of the radio frequency line 1 are connected with radio frequency connectivity port, and the one of the radio frequency line 1 End is connected on by radio frequency connectivity port on the feed shrapnel, and the other end is connected on the radio-frequency module by radio frequency connectivity port On.

Specifically, the resonant frequency of the NFC antenna 2 is 13.56Mhz.Therefore, according to the low coverage Resonance principle from wireless communication antenna 2, further, the length of the metal outer conductor layer 12 lead to for the near radio Twice of the resonant frequency corresponding wavelength of Iflytech's line 2.

In conclusion in a kind of communication terminal with NFC antenna 2 provided in this embodiment, institute NFC antenna 2 is stated by the use of the metal outer conductor layer 12 of the radio frequency line 1 of the communication terminal as radiator, The communication terminal is realized with the smaller occupancy in the inner space to communication terminal and relatively low production cost Close range wireless communication function, be conducive to the communication terminal and develop towards lightening direction.

It should be noted that herein, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any this actual relation or order.Term " comprising ", "comprising" or its any other variant are intended to non-row His property includes, so that process, method, article or equipment including a series of elements not only include those elements, and And it further includes other elements that are not explicitly listed or further includes as this process, method, article or equipment institute inherently Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including institute State in process, method, article or the equipment of element that also there are other identical elements.

The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art For member, on the premise of the application principle is not departed from, several improvements and modifications can also be made, for these changes and profit Decorations, also should be regarded as the protection domain of the application.

Claims

1. a kind of communication terminal with NFC antenna, including being used to connecting radio-frequency module and primary antenna Radio frequency line (1), the radio frequency line (1) include inner wire (11) and the metal outer conductor for being coated on the inner wire (11) periphery Layer (12), which is characterized in that the communication terminal further includes NFC antenna (2), the near radio Communication antenna (2) includes signal source and radiator, wherein, the metal outer conductor layer (12) is used to be used as the radiator, institute The one end for stating metal outer conductor layer (12) is connected with the signal source, other end ground connection.

2. communication terminal according to claim 1, which is characterized in that the NFC antenna (2) is also Including current feed terminal (21) and feedback ground terminal (22), the current feed terminal (21) is arranged on the one of the metal outer conductor layer (12) On end, the current feed terminal (21) turns on one end of the metal outer conductor layer (12) and the signal source；Feedback ground terminal (22) it is arranged on the other end of the metal outer conductor layer (12), the other end of the metal outer conductor layer (12) passes through described Feedback ground terminal (22) is grounded.

3. communication terminal according to claim 2, which is characterized in that be provided with screw on the current feed terminal (21) Hole for being connected by screw the current feed terminal (21) and the signal source, and passes through screw to the current feed terminal (21) /V is carried out, screw hole is provided on the feedback ground terminal (22), for being grounded by screw, and passes through screw to the feedback ground Terminal (22) carries out /V.

4. the communication terminal according to Claims 2 or 3, which is characterized in that the communication terminal further includes master Plate, antenna platelet and primary antenna, radio-frequency module is provided on the mainboard, and the primary antenna includes feed shrapnel, the feed Shrapnel is arranged on the antenna platelet, radio frequency line (1) conducting feed shrapnel and the radio-frequency module, the signal Source is arranged on the mainboard, and the feedback ground terminal (22) is connected in the ground terminal of the antenna platelet.

5. communication terminal according to claim 1, which is characterized in that the radio frequency line (1) is that resistance value is 50 ohm Standard coaxial impedance line.

6. communication terminal according to claim 1, which is characterized in that the NFC antenna (2) Resonant frequency is 13.56Mhz.

7. communication terminal according to claim 6, which is characterized in that the length of the metal outer conductor layer (12) is Twice of the resonant frequency corresponding wavelength of the NFC antenna (2).