CN105428789A - Antenna and electronic terminal including the antenna - Google Patents
Antenna and electronic terminal including the antenna Download PDFInfo
- Publication number
- CN105428789A CN105428789A CN201510906058.7A CN201510906058A CN105428789A CN 105428789 A CN105428789 A CN 105428789A CN 201510906058 A CN201510906058 A CN 201510906058A CN 105428789 A CN105428789 A CN 105428789A
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- CN
- China
- Prior art keywords
- field communication
- antenna
- far
- electrically connected
- gap
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Classifications
-
- 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
- H01Q1/243—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 with built-in antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
Abstract
The embodiment of the invention discloses an antenna and an electronic terminal including the antenna. The antenna comprises a metal substrate, a near field communication feeding structure, a near field communication feeding matching circuit, and two far field communication feeding structures, wherein a gap is formed in the metal substrate; a near field communication feeding point is arranged in the gap; the near field communication feeding structure is electrically connected with the near field communication feeding point; the near field communication feeding structure is electrically connected with the near field communication feeding point through the near field communication feeding matching circuit; the near field communication feeding matching circuit divides the gap into two feeding areas; each feeding area is provided with a far field communication feeding point; and the two far field communication feeding structures are electrically connected with the far field communication feeding points one by one. The antenna and the electronic terminal including the antenna are low in cost and are simple in structure and are low in complexity.
Description
Technical field
The present invention relates to antenna technical field, particularly relate to a kind of antenna and comprise the electric terminal of this antenna.
Background technology
Along with the development of electronic technology and the communication technology, electric terminal possesses more and more abundanter function, is integrated in electric terminal and also gets more and more with the antenna supported electric terminal and realize various transfer of data and communication function.Near-field communication aerial realizes near-field communication (NFC, Near-FieldCommunications) antenna structure, generally take up room larger, and the interference between other aerial signal, also need to increase and expensive ferrite suitable with near-field communication aerial area, such that near-field communication aerial cost is high, complex structure.
Summary of the invention
The embodiment of the present invention proposes a kind of antenna and comprises the electric terminal of this antenna, to solve high, the baroque problem of near-field communication aerial cost of the prior art.
For reaching this object, the present invention by the following technical solutions:
First aspect, embodiments provides a kind of antenna, comprising:
Metal substrate, described metal substrate offers gap, and described gap is provided with a near-field communication distributing point;
A near-field communication feed structure, described near-field communication feed structure is electrically connected with described near-field communication distributing point;
A near-field communication feed match circuit, described near-field communication feed structure is electrically connected with described near-field communication distributing point by described near-field communication feed match circuit, described gap is divided into two feeder sections by described near-field communication feed match circuit, and each described feeder section is provided with a far-field communication distributing point;
Two far-field communication feed structures, described far-field communication feed structure is electrically connected one by one with described far-field communication distributing point.
Second aspect, embodiments provides a kind of electric terminal, comprises the antenna that first aspect provides, and described metal substrate is multiplexed with the metal shell of described electric terminal.
The antenna that the embodiment of the present invention provides and comprise the electric terminal of this antenna, near-field communication distributing point is set in the gap of metal substrate, near-field communication feed structure is electrically connected with near-field communication distributing point by near-field communication feed match circuit, gap is divided into two feeder sections by near-field communication feed match circuit, each feeder section is provided with a far-field communication distributing point, and two far-field communication feed structures are electrically connected one by one with far-field communication distributing point.Via such scheme, when receiving and dispatching the far-field communication signal being used for far-field communication, the high-frequency isolation effect of near-field communication feed match circuit makes two feeder sections independently receive and dispatch far-field communication signal (that is: this antenna can receive and dispatch two kinds of far-field communication signals); When receiving and dispatching the near-field-communication signal being used for near-field communication, near-field communication feed match circuit is equivalent to loading capacitance, two feeder sections are made integrally jointly to operate (that is: this antenna can receive and dispatch a kind of near-field-communication signal), achieve a near-field-communication signal and two far-field communication signals to be integrated on a gap and receive and dispatch, that is: the transmitting-receiving of near-field-communication signal is integrated in the gap for far-field communication signal transmitting and receiving, thus eliminate independent near-field communication aerial structure, and then can reduce costs and simplified structure.In addition, near-field communication feed structure and two far-field communication feed structures have independent distributing point respectively, and duplexer required when not needing shared distributing point, makes the complexity of this antenna lower.
Accompanying drawing explanation
In order to the technical scheme of exemplary embodiment of the present is clearly described, one is done to the accompanying drawing used required for describing in embodiment below and simply introduce.Obviously, the accompanying drawing introduced is the accompanying drawing of a part of embodiment that the present invention will describe, instead of whole accompanying drawings, for those of ordinary skill in the art, under the prerequisite not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the antenna that the embodiment of the present invention provides.
Fig. 2 is the equivalent structure schematic diagram of the antenna that the embodiment of the present invention provides.
Fig. 3 is the equivalent structure schematic diagram of the antenna that provides of the embodiment of the present invention for near-field communication.
Fig. 4 is the equivalent structure schematic diagram of the antenna that provides of the embodiment of the present invention for far-field communication.
Fig. 5 is the circuit diagram of a kind of implementation of the near-field communication feed match circuit of the antenna that the embodiment of the present invention provides.
Fig. 6 is the circuit diagram of a kind of implementation of the near-field communication resonant circuit of the antenna that the embodiment of the present invention provides.
Fig. 7 is the structural representation of the metal shell of the electric terminal that the embodiment of the present invention provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below with reference to the accompanying drawing in the embodiment of the present invention, by embodiment, technical scheme of the present invention is intactly described.Obviously; described embodiment is a part of embodiment of the present invention, instead of whole embodiments, based on embodiments of the invention; the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all falls within protection scope of the present invention.
Embodiments provide a kind of antenna.
Fig. 1 is the structural representation of the antenna that the embodiment of the present invention provides.As shown in Figure 1, this antenna comprises: metal substrate 101, near-field communication feed structure 102, near-field communication feed match circuit 103, and two far-field communication feed structures: the first far-field communication feed structure 104 and the second far-field communication feed structure 105.
Metal substrate 101 offers gap 106, whole metal substrate 101 is run through in gap 106, that is: the two ends in gap 106 extend to the edge of metal substrate 101, and gap 106 is provided with a near-field communication distributing point 107.
Near-field communication feed structure 102 is electrically connected with near-field communication distributing point 107 (that is: one end of near-field communication feed match circuit 103 is electrically connected with near-field communication feed structure 102, and the other end of near-field communication feed match circuit 103 is electrically connected with near-field communication distributing point 107) by near-field communication feed match circuit 103.
Gap 106 is divided into two feeder sections by near-field communication feed structure 102: the first feeder section 108 and the second feeder section 109.First feeder section 108 is provided with the first far-field communication distributing point 110; Second feeder section 109 is provided with the second far-field communication distributing point 111.
First far-field communication feed structure 104 is electrically connected with the first distributing point 110; Second far-field communication feed structure 105 is electrically connected with the second distributing point 111.
Fig. 2 is the equivalent structure schematic diagram of the antenna that the embodiment of the present invention provides.As shown in Figure 2, this antenna comprises: offer the metal substrate 101 in gap 106 and be arranged in the capacitor equivalent device 201 in gap 106.Wherein, capacitor equivalent device 201 is equivalent to the near-field communication feed match circuit 103 in Fig. 1.Under different antenna modes (near-field communication or far-field communication), capacitor equivalent device 201 plays different effects.
Fig. 3 is the equivalent structure schematic diagram of the antenna that provides of the embodiment of the present invention for near-field communication.As shown in Figure 3, when antenna is used for near-field communication (that is: in near-field communication aerial pattern), capacitor equivalent device 201 is equivalent to capacitive load, makes length can work in near-field communication frequency range much smaller than the gap 106 of 1/4th near-field communication resonance wavelengths.Near-field-communication signal can be passed from whole piece gap 106, that is: capacitor equivalent device 201 can not produce substantial impact to the transmission of near-field-communication signal.
Fig. 4 is the equivalent structure schematic diagram of the antenna that provides of the embodiment of the present invention for far-field communication.As shown in Figure 4, when antenna is used for far-field communication (that is: at far-field communication antenna mode), gap is cut off into two feeder sections (that is: two seams 202 and 203) by capacitor equivalent device 201, and each feeder section can be used for designing the transmitting-receiving of the far-field communication signal realizing a kind of resonance wavelength.
Composition graphs 1 to Fig. 4 is known: the antenna that the embodiment of the present invention provides, near-field communication distributing point is set in the gap of metal substrate, near-field communication feed structure is electrically connected with near-field communication distributing point by near-field communication feed match circuit, gap is divided into two feeder sections by near-field communication feed match circuit, each feeder section is provided with a far-field communication distributing point, and two far-field communication feed structures are electrically connected one by one with far-field communication distributing point.Via such scheme, when receiving and dispatching the far-field communication signal being used for far-field communication, the high-frequency isolation effect of near-field communication feed match circuit makes two feeder sections independently receive and dispatch far-field communication signal (that is: this antenna can receive and dispatch two kinds of far-field communication signals); When receiving and dispatching the near-field-communication signal being used for near-field communication, near-field communication feed match circuit is equivalent to loading capacitance, two feeder sections are made integrally jointly to operate (that is: this antenna can receive and dispatch a kind of near-field-communication signal), achieve a near-field-communication signal and two far-field communication signals to be integrated on a gap and receive and dispatch, that is: the transmitting-receiving of near-field-communication signal is integrated in the gap for far-field communication signal transmitting and receiving, thus eliminate independent near-field communication aerial structure, and then can reduce costs and simplified structure.In addition, near-field communication feed structure and two far-field communication feed structures have independent distributing point respectively, and duplexer required when not needing shared distributing point, makes the complexity of this antenna lower.
As shown in Figure 1, metal substrate 101 is divided into the two parts varied in size by gap 106, a wherein less part (that is: the metal substrate 101 of the lower part in Fig. 1) is as antenna end, and a larger part (that is: the metal substrate 101 of the upper part in Fig. 1) is as ground end.Wherein, near-field communication distributing point 107, and two far-field communication distributing points: the first far-field communication distributing point 110 and the second far-field communication distributing point 111 are all arranged on antenna end.
As shown in Figure 3, the two ends due to whole piece gap 106 extend to the edge of metal substrate 101, that is: the two ends in whole piece gap 106 are all openings, belong to open seam.
As shown in Figure 4, because the seam of two shown in dash area all has one end to extend to the edge of metal substrate 101, that is: two seams are all openings, belong to open seam, therefore, the resonance wavelength of two kinds of far-field communication signals of this antenna transmitting-receiving is respectively the length A of two seams 202 and 203
1and A
2four times.Therefore, the length A of two seams 202 and 203
1and A
2can design according to the resonance wavelength of the two kinds of far-field communication signals that will receive and dispatch, that is: the length in whole gap and the position of capacitor equivalent device 201 can be designed according to the resonance wavelength of the two kinds of far-field communication signals that will receive and dispatch.
Near-field communication feed match circuit 103 realizes capacitive load except having under near-field communication aerial pattern; Under far-field communication antenna mode, gap is cut off into outside the function of two feeder sections, also there is following function: (1) offsets the original induction reactance of near-field communication aerial, that is: make the imaginary impedance of near-field communication aerial be 0; (2) less resistive of near-field communication aerial is made to be transformed into larger resistance; (3) realize the signal of far-field communication antenna and " distributing point " of near-field communication aerial and " " isolate.
The circuit of above-mentioned functions can be realized, all can as this near-field communication feed match circuit 103.Illustrate the circuit structure of near-field communication feed match circuit 103 below.
Fig. 5 is the circuit diagram of a kind of implementation of the near-field communication feed match circuit of the antenna that the embodiment of the present invention provides.As shown in Figure 5, near-field communication feed match circuit comprises: the first inductance L
1, the first electric capacity C
1with the second electric capacity C
2;
First inductance L
1one end B
1with the near-field communication feed structure 102 in Fig. 1, and the first electric capacity C
1one end B
2electrical connection; First inductance L
1other end B
3with the near-field communication distributing point 107 in Fig. 1, and one end B of the second electric capacity C2
4electrical connection; First electric capacity C
1other end B
5and C
2the other end B of the second electric capacity
6equal ground connection is arranged.
As the above analysis: the B in Fig. 5
7end is one end of the near-field communication feed match circuit 103 in Fig. 1, is electrically connected with the near-field communication feed structure 102 in Fig. 1; B in Fig. 5
8end is the other end of the near-field communication feed match circuit 103 in Fig. 1, is electrically connected with the near-field communication distributing point 107 in Fig. 1.
Wherein, the second electric capacity C
2realize realizing capacitive load under near-field communication aerial pattern; Gap is cut off into the function of two feeder sections under far-field communication antenna mode.First inductance L
1with the first electric capacity C
1realize following function: (1) offsets the original induction reactance of near-field communication aerial, that is: make the imaginary impedance of near-field communication aerial be 0; (2) less resistive of near-field communication aerial is made to be transformed into larger resistance; (3) realize the signal of far-field communication antenna and " distributing point " of near-field communication aerial and " " isolate.
As shown in Figure 1, this antenna can also comprise: near-field communication filter 112.
One end of near-field communication filter 112 is electrically connected with near-field communication feed structure 102; The other end of near-field communication filter 112 is electrically connected with near-field communication feed match circuit 103.
The near-field-communication signal of this near-field communication filter 112 to transmitting-receiving is utilized to carry out filtering.
As shown in Figure 1, this antenna can also comprise: near-field communication resonant circuit 113.
Near-field communication resonant circuit 113 is electrically connected with the metal substrate 101 of both sides, gap 106 respectively.
The effect of this near-field communication resonant circuit 113 is: carry out tuning to the resonance frequency of the near-field-communication signal of transmitting-receiving.
The circuit of above-mentioned functions can be realized, all can as this near-field communication resonant circuit 113.Illustrate the circuit structure of near-field communication resonant circuit 113 below.
Fig. 6 is the circuit diagram of a kind of implementation of the near-field communication resonant circuit of the antenna that the embodiment of the present invention provides.As shown in Figure 6, this near-field communication resonant circuit comprises: the second inductance L
2with the 3rd electric capacity C
3;
Second inductance L
2one end D
1be electrically connected with the metal substrate 101 of the side, gap 106 in Fig. 1; Second inductance L
2other end D
2with the 3rd electric capacity C
3one end D
3electrical connection; 3rd electric capacity C
3other end D
4be electrically connected with the metal substrate 101 of gap 106 opposite side in Fig. 1.
As the above analysis: the D in Fig. 6
5end is one end of the near-field communication resonant circuit 113 in Fig. 1, is electrically connected with the metal substrate 101 of the side, gap 106 in Fig. 1; D in Fig. 6
6end is the other end of the near-field communication resonant circuit 113 in Fig. 1, is electrically connected with the metal substrate 101 of gap 106 opposite side in Fig. 1.
The embodiment of the present invention additionally provides a kind of electric terminal, this electric terminal comprises the antenna that the embodiment of the present invention provides, wherein, the metal substrate in antenna is multiplexed with the metal shell of electric terminal, that is: the metal shell of electric terminal utilizes the metal substrate in antenna to make.This electric terminal can be the electronic equipment being provided with near-field communication aerial and far-field communication antenna, and especially, this electric terminal can be the mobile terminal such as mobile phone, panel computer.
The electric terminal that the embodiment of the present invention provides, near-field communication distributing point is set in the gap of metal substrate, near-field communication feed structure is electrically connected with near-field communication distributing point by near-field communication feed match circuit, gap is divided into two feeder sections by near-field communication feed match circuit, each feeder section is provided with a far-field communication distributing point, and two far-field communication feed structures are electrically connected one by one with far-field communication distributing point.Via such scheme, when receiving and dispatching the far-field communication signal being used for far-field communication, the high-frequency isolation effect of near-field communication feed match circuit makes two feeder sections independently receive and dispatch far-field communication signal (that is: this antenna can receive and dispatch two kinds of far-field communication signals); When receiving and dispatching the near-field-communication signal being used for near-field communication, near-field communication feed match circuit is equivalent to loading capacitance, two feeder sections are made integrally jointly to operate (that is: this antenna can receive and dispatch a kind of near-field-communication signal), achieve a near-field-communication signal and two far-field communication signals to be integrated on a gap and receive and dispatch, that is: the transmitting-receiving of near-field-communication signal is integrated in the gap for far-field communication signal transmitting and receiving, thus eliminate independent near-field communication aerial structure, and then can reduce costs and simplified structure.In addition, near-field communication feed structure and two far-field communication feed structures have independent distributing point respectively, and duplexer required when not needing shared distributing point, makes the complexity of this antenna lower.
Fig. 7 is the structural representation of the metal shell of the electric terminal that the embodiment of the present invention provides.As shown in Figure 7, gap 701 is positioned at the lower end of metal shell 702.
Be understandable that, the remainder of metal shell 702 also can arrange gap (such as: the upper end of metal shell 702 is provided with gap 703), and these gaps can be utilized to design far-field communication antenna and/or near-field communication aerial.
The know-why that above are only preferred embodiment of the present invention and use.The invention is not restricted to specific embodiment described here, the various significant changes can carried out for a person skilled in the art, readjust and substitute all can not depart from protection scope of the present invention.Therefore, although be described in further detail invention has been by above embodiment, the present invention is not limited only to above embodiment, when not departing from the present invention's design, can also comprise other Equivalent embodiments more, and scope of the present invention is determined by the scope of claim.
Claims (7)
1. an antenna, is characterized in that, comprising:
Metal substrate, described metal substrate offers gap, and described gap is provided with a near-field communication distributing point;
A near-field communication feed structure, described near-field communication feed structure is electrically connected with described near-field communication distributing point;
A near-field communication feed match circuit, described near-field communication feed structure is electrically connected with described near-field communication distributing point by described near-field communication feed match circuit, described gap is divided into two feeder sections by described near-field communication feed match circuit, and each described feeder section is provided with a far-field communication distributing point;
Two far-field communication feed structures, described far-field communication feed structure is electrically connected one by one with described far-field communication distributing point.
2. antenna according to claim 1, is characterized in that, described near-field communication feed match circuit comprises: the first inductance, the first electric capacity and the second electric capacity;
One end of described first inductance and described near-field communication feed structure, and one end electrical connection of described first electric capacity; The other end of described first inductance and described near-field communication distributing point, and one end electrical connection of described second electric capacity; The other end of described first electric capacity and the equal ground connection of the other end of described second electric capacity are arranged.
3. antenna according to claim 1, is characterized in that, also comprises near-field communication filter;
One end of described near-field communication filter is electrically connected with described near-field communication feed structure; The other end of described near-field communication filter is electrically connected with described near-field communication feed match circuit.
4. antenna according to claim 1, is characterized in that, also comprises: near-field communication resonant circuit;
Described near-field communication resonant circuit is electrically connected with the metal substrate of both sides, described gap respectively.
5. antenna according to claim 4, is characterized in that, described near-field communication resonant circuit comprises: the second inductance and the 3rd electric capacity;
One end of described second inductance is electrically connected with the metal substrate of side, described gap; The other end of described second inductance is electrically connected with one end of described 3rd electric capacity; The other end of described 3rd electric capacity is electrically connected with the metal substrate of described gap opposite side.
6. an electric terminal, is characterized in that, comprise the arbitrary described antenna of claim 1-5, and described metal substrate is multiplexed with the metal shell of described electric terminal.
7. electric terminal according to claim 6, is characterized in that, described gap is positioned at the lower end of described metal shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510906058.7A CN105428789B (en) | 2015-12-09 | 2015-12-09 | A kind of antenna and the electric terminal including the antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510906058.7A CN105428789B (en) | 2015-12-09 | 2015-12-09 | A kind of antenna and the electric terminal including the antenna |
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| Publication Number | Publication Date |
|---|---|
| CN105428789A true CN105428789A (en) | 2016-03-23 |
| CN105428789B CN105428789B (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510906058.7A Active CN105428789B (en) | 2015-12-09 | 2015-12-09 | A kind of antenna and the electric terminal including the antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN105428789B (en) |
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| WO2017166407A1 (en) * | 2016-03-29 | 2017-10-05 | 中兴通讯股份有限公司 | Metal rear shell-based double-fed tunable terminal antenna |
| KR20180060299A (en) * | 2016-11-28 | 2018-06-07 | 삼성전자주식회사 | Electronic device comprising antenna |
| CN114883791A (en) * | 2022-07-04 | 2022-08-09 | 荣耀终端有限公司 | Antenna system and terminal equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105428789B (en) | 2018-01-19 |
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