CN108987933A - Near-field communication aerial structure and electric terminal with the near-field communication aerial structure - Google Patents
Near-field communication aerial structure and electric terminal with the near-field communication aerial structure Download PDFInfo
- Publication number
- CN108987933A CN108987933A CN201710407084.4A CN201710407084A CN108987933A CN 108987933 A CN108987933 A CN 108987933A CN 201710407084 A CN201710407084 A CN 201710407084A CN 108987933 A CN108987933 A CN 108987933A
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- Prior art keywords
- field communication
- capacitor
- hole
- aerial structure
- circuit
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/273—Adaptation for carrying or wearing by persons or animals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
A kind of near-field communication aerial structure and the electric terminal with the near-field communication aerial structure are provided, it is characterized in that, the near-field communication aerial structure includes: the first through hole being arranged in the rear shell of the electric terminal and the second through-hole, it is connected between first through hole and the second through-hole, first antenna coil and the second aerial coil on the inside of the rear shell are set, first antenna coil is arranged around first through hole, second aerial coil is arranged around the second through-hole, first feeding point, the electric current for being connected to first antenna coil and the second aerial coil flows into end, second feeding point, it is connected to the electric current outflow end of first antenna coil and the second aerial coil.Using the near-field communication aerial structure of the above exemplary embodiments and the electric terminal with the near-field communication aerial structure, the sensing area of NFC antenna coil can be increased, effectively promote the performance of near-field communication aerial, and the overall appearance of electric terminal can be beautified.
Description
Technical field
All things considered of the present invention is related to antenna structure, more particularly, is related to a kind of near-field communication for electric terminal
Antenna structure and electric terminal with the near-field communication aerial structure.
Background technique
With the continuous development of electronic communication, electric terminal has more and more abundant function, supports electric terminal
Realize that the antenna of the transmission of various data and communication function is also more and more, near-field communication aerial be realize near-field communication (NFC,
Near-Field Communications) antenna structure.
The mode that NFC antenna is loaded inside currently used electric terminal is all to attach NFC antenna together with its ferrite
On the shell of electric terminal, for the electric terminal of metal shell, vertical is used usually among metal shell
The scheme of slit (perps 1)+NFC coil antenna (coil antenna 2) is opened one below the gap of metal shell 3 and is erected
Seam 1 and an aperture 4, coil antenna 2 are attached to 1 position of perps around aperture 4, so that NFC signal is radiate (such as by perps 1
Shown in Fig. 1 and Fig. 2).
But the position for the aperture 4 being arranged on metal shell using above-mentioned NFC antenna set-up mode needs to lead close to gap 3
It causes the setting position of aperture 4 limited, affects the overall aesthetics of the rear shell of electric terminal.
Summary of the invention
The purpose of exemplary embodiment of the present is to propose a kind of near-field communication aerial structure and has the near-field communication
The electric terminal of antenna structure to promote the performance of NFC antenna, and beautifies the overall appearance of electric terminal.
One side according to an exemplary embodiment of the present invention provides a kind of day near-field communication (NFC) for electric terminal
Cable architecture, which is characterized in that the near-field communication aerial structure includes: that first be arranged in the rear shell of the electric terminal is led to
Hole and the second through-hole, are connected between first through hole and the second through-hole, and the first antenna coil on the inside of the rear shell and is arranged in
Two aerial coils, first antenna coil arrange that the second aerial coil is arranged around the second through-hole around first through hole, the first feed
Point, the electric current for being connected to first antenna coil and the second aerial coil flow into end, and the second feeding point is connected to first antenna coil
With the electric current outflow end of the second aerial coil.
Optionally, the current direction of first antenna coil and the second aerial coil is opposite.
Optionally, the near-field communication aerial structure can further include the first elastic slice and the second elastic slice, wherein the first feeding point
It is connected near field communication circuitry module by the first elastic slice, the second feeding point is connected to the near-field communication electricity by the second elastic slice
Road module.
Optionally, the first elastic slice may be provided on the mainboard of the electric terminal just at the position of the first feeding point,
At the settable position for just facing the second feeding point on the main board of second elastic slice.
Optionally, the rear shell of the electric terminal can be formed by conductive material.
Optionally, the near-field communication aerial structure can further include that the third being arranged in the rear shell of the electric terminal is led to
Hole, third through-hole are connected to one of first through hole and the second through-hole.
Optionally, the near-field communication aerial structure may include the first isolated part and the second isolated part, wherein first
One end of isolated part is connected to the first transmitting terminal and the first receiving end of the near field communication circuitry module, the first isolated part
The other end be connected to the first feeding point, one end of the second isolated part is connected to the second hair of the near field communication circuitry module
End and the second receiving end are penetrated, the other end of the second isolated part is connected to the second feeding point.
Optionally, the first isolated part and the second isolated part can be inductance.
Optionally, the near-field communication aerial structure can further include the first Signal Matching circuit and second signal matching electricity
Road, wherein the input terminal of the first Signal Matching circuit is connected to the first transmitting terminal and first of the near field communication circuitry module
The output end of receiving end, the first Signal Matching circuit is connected to described one end of the first isolated part, second signal match circuit
Input terminal be connected to the second transmitting terminal and the second receiving end of the near field communication circuitry module, second signal match circuit
Output end is connected to described one end of the second isolated part.
Optionally, the first Signal Matching circuit may include first capacitor and the second capacitor, and second signal match circuit includes
Third capacitor and the 4th capacitor, wherein one end of first capacitor is connected to the first transmitting terminal of the near field communication circuitry module
With the first receiving end, the other end of first capacitor is connected to described one end of the first isolated part, one end connection of the second capacitor
The other end to the other end of first capacitor, the second capacitor is grounded, and one end of third capacitor is connected to the near field communication circuitry
Second transmitting terminal of module and the second receiving end, the other end of third capacitor are connected to described one end of the second isolated part, the
One end of four capacitors is connected to the other end of third capacitor, the other end ground connection of the 4th capacitor.
Optionally, the near-field communication aerial structure can further include the first filter circuit and the second filter circuit, wherein the
The input terminal of one filter circuit is connected to the first transmitting terminal of the near field communication circuitry module, the output end of the first filter circuit
It is connected to the input terminal of the first Signal Matching circuit, the input terminal of the second filter circuit is connected to the near field communication circuitry module
The second transmitting terminal, the output end of the second filter circuit is connected to the input terminal of second signal match circuit.
Optionally, the first filter circuit may include the first inductance and the 5th capacitor, and the second filter circuit includes the second inductance
With the 6th capacitor, wherein one end of the first inductance is connected to the first transmitting terminal of the near field communication circuitry module, the first inductance
The other end be connected to the input terminal of the first Signal Matching circuit, one end of the 5th capacitor is connected to the other end of the first inductance,
The other end of 5th capacitor is grounded, and one end of the second inductance is connected to the second transmitting terminal of the near field communication circuitry module, the
The other end of two inductance is connected to the input terminal of second signal match circuit, and one end of the 6th capacitor is connected to the another of the second inductance
One end, the other end ground connection of the 6th capacitor.
Optionally, the near field communication circuitry module, the first filter circuit, the second filter circuit, the first Signal Matching electricity
Road, second signal match circuit, the first isolated part and the second isolated part may be provided on the mainboard of the electric terminal.
Another aspect according to an exemplary embodiment of the present invention provides a kind of electricity with above-mentioned near-field communication aerial structure
Sub- terminal.
Using the near-field communication aerial structure of the above exemplary embodiments and the electronics with the near-field communication aerial structure
Terminal can increase the sensing area of NFC antenna coil, effectively promote the performance of near-field communication aerial, and can beautify electronics
The overall appearance of terminal.
Detailed description of the invention
By the detailed description carried out below in conjunction with the accompanying drawings, above and other objects of the present invention, features and advantages will
It becomes more fully apparent, in which:
Fig. 1 shows the exemplary diagram of existing near-field communication NFC antenna structure；
Fig. 2 shows the pictorial diagrams of NFC antenna structure shown in FIG. 1；
Fig. 3 shows the signal of the near-field communication aerial structure according to an exemplary embodiment of the present invention for electric terminal
Figure；
Fig. 4 shows the circuit diagram of near-field communication aerial structure shown in Fig. 3 according to an exemplary embodiment of the present invention.
Specific embodiment
It will be described in detail exemplary embodiment of the present invention now, the example of exemplary embodiment of the present invention is shown
In attached drawing.Embodiment is described below with reference to the accompanying drawings to explain the present invention.However, the present invention can be in many different forms
Implement, and should not be construed as being limited to exemplary embodiment set forth herein.On the contrary, thesing embodiments are provided so that the disclosure
It will be thorough and complete, and the scope of the present invention will be fully conveyed to those skilled in the art by these embodiments.
Fig. 3 shows the signal of the near-field communication aerial structure according to an exemplary embodiment of the present invention for electric terminal
Figure.
As shown in figure 3, the near-field communication aerial structure according to an exemplary embodiment of the present invention for electric terminal can wrap
Include first through hole 10, the second through-hole 20, first antenna coil 30, the second aerial coil 40, the first feeding point A and the second feeding point
B.Introduce the near-field communication aerial structure for electric terminal of exemplary embodiment of the present taking what is shown in fig. 3 as an example below
Composition and working principle.
Particularly, first through hole 10 and the second through-hole 20 are arranged in the rear shell 1 of electric terminal, and 10 He of first through hole
It is connected between second through-hole 20, that is, open up gap between first through hole 10 and the second through-hole 20.It selectively, can be each
Various sensor modules are installed, for example, fingerprint identification module, camera module, flash modules etc. in through-hole.As an example,
The electric terminal can be smart phone, intelligent wearable device, tablet computer, laptop, mobile unit, network electricity
Depending on, the equipment with NFC communication function such as electronic reader, remote controler.
The rear shell 1 of electric terminal can be the dorsal shield (rear cover) of electric terminal, can be formed by conductive material, for example, metal, excellent
At least one gap 3 can be arranged in selection of land in the rear shell 1 of electric terminal.As an example, in first through hole 10 and the second through-hole 20
Between the material for not influencing NFC antenna radiation can be filled in the gap that opens up, for example, non-conducting material, it is preferable that this is non-conductive
Material may include plastics.
1 inside of rear shell of electric terminal, first antenna coil is arranged in first antenna coil 30 and the second aerial coil 40
30 arrange around first through hole 10, and the second aerial coil 40 is arranged around the second through-hole 20.As an example, first antenna coil 30
It may respectively be the rectangular planes coil of winding wires by layers with the second aerial coil 40.
Here, the one side of first antenna coil 30 and the second aerial coil 40 can be attached using existing various methods
In 1 inside of rear shell of electric terminal, it is preferable that the another side of first antenna coil 30 and the second aerial coil 40 can attach iron oxygen
Body.
First feeding point A is connected to first antenna coil 30 and the electric current of the second aerial coil 40 flows into end, the second feed
Point B is connected to the electric current outflow end of first antenna coil 30 and the second aerial coil 40, so that first antenna coil 30 and second
Aerial coil 40 is arranged in parallel.
Here, the current direction in first antenna coil 30 and the second aerial coil 40 is opposite.First antenna coil
30 from electric current flow into end to electric current outflow end (such as from the first feeding point A to the second feeding point B) around first through hole 10 around
Line direction is consistent with the current direction in first antenna coil 30, and the second aerial coil 40 flows into end to electric current stream from electric current
Direction of circling of the outlet around the second through-hole 20 is consistent with the current direction in the second aerial coil 40.As shown in figure 3,
Direction of circling and current direction of the first antenna coil 30 around first through hole 10 are counterclockwise the second aerial coil
40 direction of circling and current direction around the second through-hole 20 is clockwise.It should be understood that it is merely illustrative as indicated at 3,
The invention is not limited thereto.By the way of being arranged in parallel two aerial coils of exemplary embodiment of the present, can effectively it subtract
The impedance of small coil, so that the electric current in coil becomes larger, magnetic field strength enhancing.
Preferably, the near-field communication aerial structure according to an exemplary embodiment of the present invention for electric terminal can further include
Third through-hole (not shown) in the rear shell 1 of electric terminal is set.It should be understood that third through-hole can with first through hole 10 and
One of second through-hole 20 connection, that is, third through-hole is connected to first through hole 10 or third through-hole is connected to the second through-hole 20, example
Such as, a gap can be arranged between third through-hole and first through hole 10 is connected to two through-holes, or in third through-hole and second
A gap is arranged between through-hole 20 makes two through-hole connections.However the invention is not limited thereto, third through-hole can be also independently arranged at
In the rear shell 1 of electric terminal (that is, not being connected to first through hole 10 and the second through-hole 20).When third through-hole and first through hole 10
When being connected to one of the second through-hole 20, the performance of NFC antenna will be enhanced.
Near-field communication aerial structure according to an exemplary embodiment of the present invention for electric terminal can further include the first bullet
Piece C11 and the second elastic slice C22, the first feeding point A and the second feeding point B may be provided at the inside of the rear shell 1 of electric terminal, and first
Feeding point A is electrically connected to the first elastic slice C11, to be connected near field communication circuitry module 80, the second feed by the first elastic slice C11
Point B is electrically connected to the second elastic slice C22, to be connected near field communication circuitry module 80 by the second elastic slice C22.
For example, near field communication circuit module 80 can be arranged on predetermined carrier, as an example, near field communication circuitry module
80 may be provided on the mainboard 2 of electric terminal.Preferably, the first elastic slice C11 may be provided on the mainboard 2 of electric terminal and just face
At the position of first feeding point A, the second elastic slice C22 may be provided on the mainboard 2 of electric terminal the position for just facing the second feeding point B
Set place.
Preferably, can be respectively set between near field communication circuitry module 80 and the first feeding point A or the second feeding point B every
From component, thus other signals of NFC signal and electric terminal are mutually isolated, to avoid influencing each other between signal.Make
For example, other described signals may include at least one of following signals: GSM, CDMA, TD-S, WCDMA, LTE, GPS,
WIFI。
For example, the near-field communication aerial structure according to an exemplary embodiment of the present invention for electric terminal can further include
One isolated part 51 and the second isolated part 52.Preferably as example, the first isolated part 51 and the second isolated part 52 can
It is inductance (being equivalent to low-pass filtering function), however the invention is not limited thereto, and other kinds of isolated part also can be used.
Specifically, one end of the first isolated part 51 is used to be connected to the first transmitting terminal of near field communication circuitry module 80
Tx1 and the first receiving end Rx1, the other end of the first isolated part 51 are connected to the first feeding point A, and the one of the second isolated part 52
The the second transmitting terminal Tx2 and the second receiving end Rx2 for being connected near field communication circuitry module 80 are held, the second isolated part 52
The other end is connected to the second feeding point B.It should be understood that near field communication circuitry module 80 can be the NFC chip being arranged on mainboard, with
Realize the transmitting and reception to NFC signal.
For example, the near-field communication aerial structure according to an exemplary embodiment of the present invention for electric terminal can further include
One Signal Matching circuit 61 and second signal match circuit 62.
Specifically, the input terminal of the first Signal Matching circuit 61 is used to be connected to the first hair of near field communication circuitry module 80
End Tx1 and the first receiving end Rx1 is penetrated, the output end of the first Signal Matching circuit 61 is connected to described the one of the first isolated part 51
End is (that is, the first isolated part 51 is used to be connected to the first transmitting terminal Tx1 and the first receiving end of near field communication circuitry module 80
One end of Rx1), the input terminal of second signal match circuit 62 is used to be connected to the second transmitting terminal of near field communication circuitry module 80
Tx2 and the second receiving end Rx2, the output end of second signal match circuit 62 are connected to described one end of the second isolated part 52
(that is, the second isolated part 52 is used to be connected to the second transmitting terminal Tx2 and the second receiving end Rx2 of near field communication circuitry module 80
One end).
For example, antenna structure according to an exemplary embodiment of the present invention can further include the first filter circuit 71 and the second filtering
Circuit 72.
Specifically, the input terminal of the first filter circuit 71 is used to be connected to the first transmitting terminal of near field communication circuitry module 80
Tx1, the output end of the first filter circuit 71 are connected to the input terminal of the first Signal Matching circuit 61, the second filter circuit 72 it is defeated
Enter to hold the second transmitting terminal Tx2 for being connected near field communication circuitry module 80, the output end of the second filter circuit 72 is connected to
The input terminal of second signal match circuit 62.
As an example, near field communication circuitry module 80, the first filter circuit 71, the second filter circuit 72, the first signal
Electric terminal can be arranged at circuit 61, second signal match circuit 62, the first isolated part 51 and the second isolated part 52
Mainboard 2 on.
Near-field communication aerial knot shown in Fig. 3 according to an exemplary embodiment of the present invention is described in detail referring to Fig. 4
The circuit operation principle of structure.
Fig. 4 shows the circuit diagram of near-field communication aerial structure shown in Fig. 3 according to an exemplary embodiment of the present invention.
In this example, the first isolated part 51 can be inductance Lfeed1, and the second isolated part 52 can be inductance Lfeed2.
First Signal Matching circuit 61 may include first capacitor C1 and the second capacitor C2, and second signal match circuit 62 may include third electricity
Hold C3 and the 4th capacitor C4, it is unattenuated as far as possible in transmission process for making NFC signal, however the invention is not limited thereto,
Other circuit structures can be used also to reduce the decaying of NFC signal.First filter circuit 71 may include the first inductance L1 and the 5th
Capacitor C5, the second filter circuit 72 may include the second inductance L2 and the 6th capacitor C6, play EMC filter action, that is, for eliminating
The electromagnetic interference generated during starting, braking and operation work.However the invention is not limited thereto, other circuit structures also can be used
To eliminate electromagnetic interference.
As shown in figure 4, one end of the first inductance L1 is used to be connected to the first transmitting terminal of near field communication circuitry module 80
The other end of Tx1, the first inductance L1 are connected to one end of first capacitor C1, and the other end of first capacitor C1 is connected to inductance
One end of Lfeed1, the other end of inductance Lfeed1 are connected to the first elastic slice C11, to be connected to first by the first elastic slice C11
Feeding point A.One end of 5th capacitor C5 is connected to the other end of the first inductance L1, the other end ground connection of the 5th capacitor C5.Second
One end of capacitor C2 is connected to the other end of first capacitor C1, the other end ground connection of the second capacitor C2.Here, first capacitor C1
One end is also connected to the first receiving end Rx1 of near field communication circuitry module 80, and however, the present invention is not limited thereto can also be by inductance
One end of Lfeed1 is connected to the first receiving end Rx1 of near field communication circuitry module 80.
One end of second inductance L2 is used to be connected to the second transmitting terminal Tx2 of near field communication circuitry module 80, the second inductance
The other end of L2 is connected to one end of third capacitor C3, and the other end of third capacitor C3 is connected to one end of inductance Lfeed2, electricity
The other end of sense Lfeed2 is connected to the second elastic slice C22, to be connected to the second feeding point B by the second elastic slice C22.6th capacitor
One end of C6 is connected to the other end of the second inductance L2, the other end ground connection of the 6th capacitor C6.One end of 4th capacitor C4 connects
The other end to the other end of third capacitor C3, the 4th capacitor C4 is grounded.Here, one end of third capacitor C3 is also connected near field
One end of inductance Lfeed2 can be also connected to closely by the second receiving end Rx2 of communication circuit module 80, however, the present invention is not limited thereto
Second receiving end Rx2 of field communication circuit module 80.
Referring to circuit diagram shown in Fig. 4, what near field communication circuitry module 80 emitted is two NFC signals of opposite in phase
(such as differential signal) is transferred to first antenna coil 30 and the second aerial coil via the first feeding point A and the second feeding point B
40, the electric current in first antenna coil 30 and the second aerial coil 40 is respectively formed magnetic field, so that NFC signal is existed by setting
It is radiated at gap between first through hole 10 and the second through-hole 20.Here, transmitting differential signal can play the role of signal reinforcement.
Correspondingly, when first antenna coil 30 and the second aerial coil 40 sense near other with NFC function
When equipment, NFC signal can be transferred to the first of near field communication circuitry module 80 by the first feeding point A and the second feeding point B
Receiving end Rx1 and the second receiving end Rx2.
Another exemplary embodiment of the invention can provide a kind of electric terminal, which may include being described above
Near-field communication aerial structure.
Using the near-field communication aerial structure of exemplary embodiment of the present and the electricity with the near-field communication aerial structure
Sub- terminal is able to ascend the beauty of electric terminal rear shell so that setting position of the aperture in electric terminal rear shell is no longer limited
Property.
In addition, using the near-field communication aerial structure of exemplary embodiment of the present and with the near-field communication aerial structure
Electric terminal, be arranged in parallel two aerial coils so that the impedance of aerial coil becomes smaller, the intensifying current in aerial coil,
Magnetic field strength enhancing, effectively improves the performance of NFC antenna.
In addition, using the near-field communication aerial structure of exemplary embodiment of the present and with the near-field communication aerial structure
Electric terminal, be provided with two aerial coils, relative to setting individual antenna coil when aerial coil area become larger so that
The sensing area of itself and other external NFC devices increases, and is able to ascend the performance of NFC antenna.
It should be understood that in an exemplary embodiment of the present invention, the instruction such as term " transverse direction ", " longitudinal direction ", " length ", " width "
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, rather than implies or indicate that signified device or element must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
For the sake of for clarity and conciseness, the description to unnecessary component or element may be omitted, identical label begins
Identical element is indicated eventually.In the accompanying drawings, for clarity, the size and relative size of layer and region may be exaggerated,
The distance between each element and relative distance may be exaggerated.Therefore, attached drawing only schematically shows each element of the invention
Between relative positional relationship, and not restrictive.
Although being particularly shown and describing the present invention, those skilled in the art referring to its exemplary embodiment
It should be understood that in the case where not departing from the spirit and scope of the present invention defined by claim form can be carried out to it
With the various changes in details.
Claims (14)
1. a kind of near-field communication (NFC) antenna structure for electric terminal, which is characterized in that the near-field communication aerial structure
Include:
First through hole in the rear shell of the electric terminal and the second through-hole are set, connected between first through hole and the second through-hole
It is logical,
First antenna coil and the second aerial coil on the inside of the rear shell are set, and first antenna coil surrounds first through hole cloth
It sets, the second aerial coil is arranged around the second through-hole,
First feeding point, the electric current for being connected to first antenna coil and the second aerial coil flow into end,
Second feeding point is connected to the electric current outflow end of first antenna coil and the second aerial coil.
2. near-field communication aerial structure according to claim 1, which is characterized in that first antenna coil and the second antenna line
The current direction of circle is opposite.
3. near-field communication aerial structure according to claim 1, which is characterized in that the near-field communication aerial structure is also wrapped
The first elastic slice and the second elastic slice are included,
Wherein, the first feeding point is connected near field communication circuitry module by the first elastic slice, and the second feeding point passes through the second elastic slice
It is connected to the near field communication circuitry module.
4. near-field communication aerial structure according to claim 3, which is characterized in that the setting of the first elastic slice is whole in the electronics
On the mainboard at end just at the position of the first feeding point, the setting of the second elastic slice is on the main board just in face of the second feeding point
At position.
5. near-field communication aerial structure according to claim 1, which is characterized in that the rear shell of the electric terminal is by conduction
Material is formed.
6. near-field communication aerial structure according to claim 1, which is characterized in that the near-field communication aerial structure is also wrapped
The third through-hole being arranged in the rear shell of the electric terminal is included, third through-hole is connected to one of first through hole and the second through-hole.
7. near-field communication aerial structure according to claim 3, which is characterized in that the near-field communication aerial structure includes
First isolated part and the second isolated part,
Wherein, one end of the first isolated part is connected to the first transmitting terminal of the near field communication circuitry module and first and receives
End, the other end of the first isolated part are connected to the first feeding point, and one end of the second isolated part is connected to the near-field communication
Second transmitting terminal of circuit module and the second receiving end, the other end of the second isolated part are connected to the second feeding point.
8. near-field communication aerial structure according to claim 7, which is characterized in that the first isolated part and the second isolation part
Part is inductance.
9. near-field communication aerial structure according to claim 7, which is characterized in that the near-field communication aerial structure is also wrapped
The first Signal Matching circuit and second signal match circuit are included,
Wherein, the input terminal of the first Signal Matching circuit is connected to the first transmitting terminal and first of the near field communication circuitry module
The output end of receiving end, the first Signal Matching circuit is connected to described one end of the first isolated part, second signal match circuit
Input terminal be connected to the second transmitting terminal and the second receiving end of the near field communication circuitry module, second signal match circuit
Output end is connected to described one end of the second isolated part.
10. near-field communication aerial structure according to claim 9, which is characterized in that the first Signal Matching circuit includes the
One capacitor and the second capacitor, second signal match circuit include third capacitor and the 4th capacitor,
Wherein, one end of first capacitor is connected to the first transmitting terminal and the first receiving end of the near field communication circuitry module, the
The other end of one capacitor is connected to described one end of the first isolated part, and one end of the second capacitor is connected to the another of first capacitor
End, the other end ground connection of the second capacitor,
One end of third capacitor is connected to the second transmitting terminal and the second receiving end of the near field communication circuitry module, third capacitor
The other end be connected to described one end of the second isolated part, one end of the 4th capacitor is connected to the other end of third capacitor,
The other end of four capacitors is grounded.
11. near-field communication aerial structure according to claim 9, which is characterized in that the near-field communication aerial structure is also
Including the first filter circuit and the second filter circuit,
Wherein, the input terminal of the first filter circuit is connected to the first transmitting terminal of the near field communication circuitry module, the first filtering
The output end of circuit is connected to the input terminal of the first Signal Matching circuit, and the input terminal of the second filter circuit is connected to the near field
Second transmitting terminal of communication circuit module, the output end of the second filter circuit are connected to the input terminal of second signal match circuit.
12. near-field communication aerial structure according to claim 11, which is characterized in that the first filter circuit includes the first electricity
Sense and the 5th capacitor, the second filter circuit include the second inductance and the 6th capacitor,
Wherein, one end of the first inductance is connected to the first transmitting terminal of the near field communication circuitry module, the first inductance it is another
End is connected to the input terminal of the first Signal Matching circuit, and one end of the 5th capacitor is connected to the other end of the first inductance, the 5th electricity
The other end of appearance is grounded,
One end of second inductance is connected to the second transmitting terminal of the near field communication circuitry module, the other end connection of the second inductance
To the input terminal of second signal match circuit, one end of the 6th capacitor is connected to the other end of the second inductance, the 6th capacitor it is another
One end ground connection.
13. near-field communication aerial structure according to claim 11, which is characterized in that the near field communication circuitry module,
First filter circuit, the second filter circuit, the first Signal Matching circuit, second signal match circuit, the first isolated part and
Two isolated parts are arranged on the mainboard of the electric terminal.
14. a kind of electric terminal with the near-field communication aerial structure as described in any one in claim 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710407084.4A CN108987933A (en) | 2017-06-02 | 2017-06-02 | Near-field communication aerial structure and electric terminal with the near-field communication aerial structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710407084.4A CN108987933A (en) | 2017-06-02 | 2017-06-02 | Near-field communication aerial structure and electric terminal with the near-field communication aerial structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108987933A true CN108987933A (en) | 2018-12-11 |
Family
ID=64502693
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710407084.4A Withdrawn CN108987933A (en) | 2017-06-02 | 2017-06-02 | Near-field communication aerial structure and electric terminal with the near-field communication aerial structure |
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| Country | Link |
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| CN (1) | CN108987933A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581347A (en) * | 2019-08-29 | 2019-12-17 | 电子科技大学 | Be applied to dicyclo antenna of 4G-MIMO intelligent glasses |
| CN112038773A (en) * | 2020-08-27 | 2020-12-04 | Oppo广东移动通信有限公司 | Near field communication antenna and electronic equipment |
| CN112736416A (en) * | 2020-12-23 | 2021-04-30 | Oppo广东移动通信有限公司 | Antenna device and electronic apparatus |
| CN114361777A (en) * | 2021-12-28 | 2022-04-15 | 歌尔科技有限公司 | NFC antenna module and electronic equipment |
| CN114361778A (en) * | 2021-12-28 | 2022-04-15 | 歌尔科技有限公司 | NFC antenna circuit, NFC antenna module and electronic equipment |
-
2017
- 2017-06-02 CN CN201710407084.4A patent/CN108987933A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581347A (en) * | 2019-08-29 | 2019-12-17 | 电子科技大学 | Be applied to dicyclo antenna of 4G-MIMO intelligent glasses |
| CN112038773A (en) * | 2020-08-27 | 2020-12-04 | Oppo广东移动通信有限公司 | Near field communication antenna and electronic equipment |
| CN112736416A (en) * | 2020-12-23 | 2021-04-30 | Oppo广东移动通信有限公司 | Antenna device and electronic apparatus |
| CN114361777A (en) * | 2021-12-28 | 2022-04-15 | 歌尔科技有限公司 | NFC antenna module and electronic equipment |
| CN114361778A (en) * | 2021-12-28 | 2022-04-15 | 歌尔科技有限公司 | NFC antenna circuit, NFC antenna module and electronic equipment |
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Application publication date: 20181211 |