CN104269609B - A kind of slot antenna using resonant feed structure - Google Patents
A kind of slot antenna using resonant feed structure Download PDFInfo
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- CN104269609B CN104269609B CN201410497066.6A CN201410497066A CN104269609B CN 104269609 B CN104269609 B CN 104269609B CN 201410497066 A CN201410497066 A CN 201410497066A CN 104269609 B CN104269609 B CN 104269609B
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- rabbet joint
- resonant circuit
- feed structure
- edge frame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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Abstract
The invention proposes a kind of slot antennas using resonant feed structure, comprising: the line of rabbet joint, resonant circuit and connection line；The line of rabbet joint is surrounded by metal edge frame and ground potential metal plate and is formed；The resonant circuit includes series resonant circuit, and one end of series resonant circuit is connected to the metal edge frame by connection line, and the other end is connected to the feed position on ground potential metal plate by connection line；The series resonant circuit includes capacitor and matching element, and matching element is any one or any a variety of combination in capacitor, inductor, resistor or conducting wire.The present invention realizes the handset configuration that metal edge frame is in continuity Characteristics, reduces breaking joint technique and the Shooting Technique in conventional mobile phone manufacturing process, aesthetics is also improved；It ensure that the high-quality signal radiance of metallic mobile phone antenna simultaneously.
Description
Technical field
The present invention relates to mobile phone terminal antenna field, in particular to a kind of slot antenna using resonant feed structure.
Background technique
With the rapidly development of smart phone, the mobile phone of plastic material is no longer satisfied the aesthetic level of consumer, and
Represent fashion, future developing trend high-end, and that there is the metal material mobile phone of texture will dominate mobile phone market.However, hand
Machine appearance will necessarily generate interference to the radiation of signal of communication using metal material, reduce communication quality.To solve problems,
The frame that existing market emerges is in the mobile phone of metal material, most using the discontinuous solution of metal,
I.e. using metal edge frame as a part of antenna.
As shown in Figure 1, metal edge frame 10 uses breaking joint technique, there are the breaking joint that one of distance is A, ground electricity in metal edge frame side
Feed position 30 on the metal plate 20 of position is connected by connection line 31 with metal edge frame top margin, meanwhile, metal edge frame top margin is logical
It crosses connection line 32 to be connected with ground potential metal plate 20, metal edge frame 10, ground potential metal plate 20, feed position 30 and connecting line
Road constitutes antenna structure.
The benefit of the above method is that metal edge frame plays the role of external antenna, greatly improves the performance of antenna for mobile phone, and
The disadvantage is that: firstly the need of breaking joint technique is used, continuous metal edge frame is cut off, processing step is increased；Then, it needs in gold
The discontinuous section for belonging to frame uses Shooting Technique, equally increases mobile phone manufacturing cost and time cost.
Therefore, the object for being designed to major handset manufacturers and being invested energetically in terms of research and development of all-metal frame mobile phone.
However, the signal radiation performance of antenna for mobile phone can be greatly reduced in the environment of this all-metal frame surrounds, therefore, how to close
Reason design antenna structure guarantees communication quality, is the mobile phone urgent problem to be solved that metal edge frame is in continuity Characteristics.
Summary of the invention
The present invention proposes a kind of slot antenna using resonant feed structure, solves in the prior art to guarantee to lead to
Believe the problem of test metal frame is using discontinuous design.
The technical scheme of the present invention is realized as follows:
A kind of slot antenna using resonant feed structure, comprising: the line of rabbet joint, resonant circuit and connection line；
The line of rabbet joint is surrounded by metal edge frame and ground potential metal plate and is formed；
The resonant circuit includes series resonant circuit, and one end of series resonant circuit is connected to described by connection line
Metal edge frame, the other end are connected to the feed position on ground potential metal plate by connection line；
The series resonant circuit includes capacitor and matching element, matching element be capacitor, inductor, resistor or
Any one in person's conducting wire or any a variety of combination.
Optionally, the combination that can be cascaded structure between each element in above-mentioned matching element, is also possible to parallel connection
The combination of structure.
Optionally, the shape of the line of rabbet joint is in concave shape, and line of rabbet joint both ends are raised and extend to ground potential metal plate direction；Or
The shape of person, the line of rabbet joint are L-shaped, and one end of the line of rabbet joint is raised and extends to ground potential metal plate direction.
Optionally, the width in the line of rabbet joint convex portion horizontal direction is more than or equal to 0.2mm, and the line of rabbet joint is vertical
Maximum width on direction is more than or equal to 5.0mm.
Optionally, the capacitor in the series resonant circuit be greater than at a distance from the top surface of the line of rabbet joint convex portion or
Person is equal to 5.0mm, and the capacitor is more than or equal to 5.0mm with metal edge frame at a distance from nearlyr side side.
Optionally, the capacitor in the series resonant circuit is within the scope of the line of rabbet joint, in the series resonant circuit
Matching element within the scope of the line of rabbet joint or within the scope of transmission line.
Optionally, the resonant circuit further includes one or more tank circuit, and tank circuit one end is logical
It crosses connection line and is connected to the metal edge frame, the other end is connected to ground potential metal plate, parallel resonance electricity by connection line
Road includes capacitor and matching element, matching element be in capacitor, inductor, resistor or conducting wire any one or
Any a variety of combination.
Optionally, the combination that can be cascaded structure between each element in above-mentioned matching element, is also possible to parallel connection
The combination of structure.
Optionally, the slot antenna of the invention using resonant feed structure further includes first antenna element, and first day
Thread elements is arranged on the metal edge frame top margin, and is less than or equal to 20.0mm at a distance from the series resonant circuit.
Optionally, the slot antenna of the invention using resonant feed structure further includes first antenna element, and first day
Thread elements is arranged on the ground potential metal plate, and is less than or equal to 20.0mm at a distance from the series resonant circuit.
Optionally, plane is higher or lower than plane where the series resonant circuit where the first antenna element.
Optionally, the slot antenna of the invention using resonant feed structure further includes the second antenna element, and second day
Thread elements is arranged on the series resonant circuit farther out side of side metal edge frame.
Optionally, distance of second antenna element apart from the metal edge frame top margin is less than 15mm.
Optionally, the slot antenna of the invention using resonant feed structure further includes the second antenna element, and second day
Thread elements is arranged on ground potential metal plate.
Optionally, the capacitor in the series resonant circuit of the above-mentioned slot antenna using resonant feed structure is and gold
Belong to the parallel cabling of frame.
The beneficial effects of the present invention are:
(1) handset configuration that metal edge frame is in continuity Characteristics is realized, is reduced disconnected in conventional mobile phone manufacturing process
Joint stabilizing process and Shooting Technique, aesthetics are also improved；
(2) it ensure that the high-quality signal radiance of metallic mobile phone antenna simultaneously.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the antenna structure view of the mobile phone of existing discontinuous metal edge frame；
Fig. 2 is the structural schematic diagram of the embodiment one of the slot antenna of the invention using resonant feed structure；
Fig. 3 is the structural schematic diagram of the embodiment two of the slot antenna of the invention using resonant feed structure；
Fig. 4 is the structural schematic diagram of the embodiment three of the slot antenna of the invention using resonant feed structure；
Fig. 5 a is a kind of structural schematic diagram of the example IV of the slot antenna of the invention using resonant feed structure；
Fig. 5 b is another structural representation of the example IV of the slot antenna of the invention using resonant feed structure
Figure；
Fig. 6 a is a kind of structural schematic diagram of the embodiment five of the slot antenna of the invention using resonant feed structure；
Fig. 6 b is another structural representation of the embodiment five of the slot antenna of the invention using resonant feed structure
Figure；
Fig. 7 is the another of the capacitor of the series resonant circuit of the slot antenna of the invention using resonant feed structure
The structural schematic diagram of kind embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The metal edge frame of existing mobile phone needs then to need to use in the discontinuous section of metal edge frame using breaking joint technique
Shooting Technique increases mobile phone manufacturing cost and time cost.Mobile phone metal edge frame of the invention designs for continuity, Er Qiebao
Communication quality is demonstrate,proved.
The slot antenna of the invention using resonant feed structure is carried out in the following with reference to the drawings and specific embodiments detailed
It describes in detail bright.
Embodiment one
As shown in Fig. 2, the slot antenna of the invention using resonant feed structure include: the line of rabbet joint 300, resonant circuit and
Connection line.The above-mentioned line of rabbet joint 300 is surrounded by metal edge frame 100 and ground potential metal plate 200 and is formed.Resonant circuit includes that series connection is total
Shake circuit 400, and one end of series resonant circuit is connected to metal edge frame 100 by connection line, and the other end passes through connection line
It is connected to the feed position 230 on ground potential metal plate.
The present invention has abandoned existing discontinuous metal edge frame structure using the slot antenna of resonant feed structure, uses
The line of rabbet joint formed is surrounded as antenna by continuous metal edge frame and ground potential metal plate, ensure that the high-quality signal spoke of antenna
Penetrate performance.
Series resonant circuit 400 enhances the effective inductance ingredient of the line of rabbet joint 300, makes it in the case where area is certain, more
Low band operation realizes miniaturization feature；Meanwhile series resonant circuit 400 can make the line of rabbet joint 300 form two different electricity
Ring is flowed, first electric current loop resonates around the formation of the line of rabbet joint 300, this electric current loop in low-frequency range, and second electric current loop is by resonance series
Circuit and the formation of the line of rabbet joint 300, this electric current loop resonate in high band, the two modes of resonance couple effect with ground potential metal plate
It answers, effectively improves the bandwidth performance of low-frequency range and high band simultaneously.
Series resonant circuit 400 include capacitor 401 and matching element 402, matching element 402 be capacitor, inductor,
Resistor perhaps any one in conducting wire alternatively, matching element 402 is in capacitor, inductor, resistor or conducting wire
Any a variety of combination can be the combination of cascaded structure between each element in matching element 402, be also possible to and be coupled
The combination of structure.
The connection relationship and positional relationship of capacitor 401 and matching element 402 are only schematical in Fig. 2, capacitor 401
It can be interchanged with the positional relationship and connection relationship of matching element 402.
In embodiment one shown in Fig. 2, the shape of the line of rabbet joint 300 is in concave shape, and 300 both ends of the line of rabbet joint are raised and golden to ground potential
Belong to 200 direction of plate to extend.The line of rabbet joint 300 can also use other forms, and those skilled in the art according to the present invention can instruct,
The shape of the line of rabbet joint 300 is rationally deformed.
Embodiment two
As shown in figure 3, in embodiment two of the present invention using the slot antenna of resonant feed structure, the shape of the line of rabbet joint 300
Shape is at L-shaped, and one end of the line of rabbet joint 300 is raised and extends to ground potential metal plate direction.
The shape of the line of rabbet joint 300 shown in Fig. 2 and Fig. 3 is preferred embodiment, only schematically, and be should not be used as to the present invention
The limitation of protection scope.
Preferably, in above-described embodiment one and embodiment two, as shown in Figures 2 and 3,310 level side of line of rabbet joint convex portion
Upward width B is more than or equal to 0.2mm, and (i.e. line of rabbet joint convex portion 310 pushes up the maximum width C in 300 vertical direction of the line of rabbet joint
The distance of 100 top margin 101 of metal edge frame is arrived in face 311) it is more than or equal to 5.0mm.The slot structure of the present embodiment is effectively lived
With the inner space of mobile phone, the area of the line of rabbet joint is enable to extend, enhances the radiance of antenna.
Preferably, in above-described embodiment one and embodiment two, as shown in Figures 2 and 3, the electricity in series resonant circuit 400
Container 401 and 311 distance F of the top surface of line of rabbet joint convex portion 310 is more than or equal to 5.0mm, above-mentioned capacitor 401 and metal
The distance G of the nearlyr side side of frame is more than or equal to 5.0mm.In the present embodiment, capacitor effectively becomes the one of antenna
Part, bandwidth performance of the enhancing slot antenna in high band.In Fig. 2 or Fig. 3, capacitor 401 and the nearlyr side side of metal edge frame
While being left side, the structure is only schematical, can be in left side according to specific design, can also be on right side.
The region of matching element is set when transmission line is existing Antenna Design, ground wire is arranged in the signal wire both sides of transmission line,
Guarantee the maximization of signal energy transmission.Preferably, in above-mentioned each embodiment, the capacitor 401 in series resonant circuit 400
Within the scope of the line of rabbet joint, the matching element 402 in series resonant circuit is within the scope of the line of rabbet joint or within the scope of transmission line.
Embodiment three
On the basis of above-described embodiment one, embodiment two and its preferred embodiment, it is preferable that of the invention utilizes resonance
The resonant circuit of the slot antenna of formula feed structure further includes one or more tank circuit, tank circuit one end
It is connected to the metal edge frame by connection line, the other end is connected to ground potential metal plate by connection line.
Tank circuit includes capacitor and matching element, and matching element is capacitor, inductor, resistor or leads
Any one in line, alternatively, matching element is any a variety of combination in capacitor, inductor, resistor or conducting wire,
The combination that can be cascaded structure between each element in matching element, is also possible to the combination of parallel-connection structure.
What embodiment illustrated in fig. 4 three provided is the structure of three tank circuits, and three tank circuits wrap respectively
Capacitor 501 and matching element 502 are included, the left side of series resonant circuit 400 is arranged in the first tank circuit 510, and second simultaneously
Connection resonant circuit 520 is located at the right side of series resonant circuit 400, and 530 one end of third tank circuit is connected by connection line
It is connected to the side 102 of metal edge frame 100, the other end is connected to ground potential metal plate 200 by connection line.
The miniaturization of the line of rabbet joint 300 can be further realized close to the tank circuit 510 of series resonant circuit 400, together
When control high band resonance coupled characteristic；Tank circuit 520 controls the line of rabbet joint 300 in the resonance point of high band；And it allies the communists
The circuit 530 that shakes controls the higher order resonances point of the line of rabbet joint 300, improves it in the bandwidth performance of high band.
The structure of multiple tank circuits shown in Fig. 4 is only schematical, and those skilled in the art can basis
The teachings of the present invention designs the structure of one or more tank circuit of other forms.
The connection relationship and positional relationship of capacitor 501 and matching element 502 are only schematical in Fig. 4, capacitor 501
It can be interchanged with the positional relationship and connection relationship of matching element 502.
Example IV
On the basis of above-described embodiment one to three and its preferred embodiment, it is preferable that of the invention to utilize resonant feed
The slot antenna of structure further includes first antenna element 600, and first antenna element 600 is arranged by connection line in metal edge frame
On top margin 101 or on ground potential metal plate 200, and with 400 distance D of series resonant circuit less than or equal to 20.0mm.
It can play the role of substituting tank circuit by the way that antenna element is arranged on metal edge frame.
Fig. 5 a shows a kind of structure of example IV, and first antenna element 600 is arranged by connection line in metal edges
On frame top margin 101；Figure 5b shows that another structure of example IV, first antenna element 600 is arranged by connection line
On ground potential metal plate 200.In above two structure, first antenna element 600 is less than with 400 distance D of series resonant circuit
Or it is equal to 20.0mm.
Preferably, 600 place plane of first antenna element is higher or lower than 300 place plane of series resonant circuit.
Embodiment five
On the basis of above-described embodiment four and its preferred embodiment, it is preferable that of the invention to utilize resonant feed structure
Slot antenna further include the second antenna element 700, the second antenna element 700 is arranged by connection line apart from resonance series
Circuit 300 is farther out on the side 102 of side metal edge frame or on ground potential metal plate 200.
Since there are two types of design structures for first antenna element 600, the present embodiment is only with the knot of first antenna element in Fig. 5 a
Structure is illustrated, and the structure of first antenna element is also applied for the present embodiment in Fig. 5 b.As shown in Figure 6 a, the second antenna element
700 are arranged on the series resonant circuit 300 farther out side 102 of side metal edge frame by connection line.In the implementation
In example, distance E of second antenna element 700 apart from the metal edge frame top margin 101 is less than 15mm.
The structure of slot antenna is only schematical in Fig. 6 a, apart from the side metal edge frame farther out of series resonant circuit 300
Side 102 be located at left frame, certainly, be arranged according to the position of series resonant circuit 300, the side of side metal edge frame farther out
It may be located on left frame.
Fig. 6 b shows another structure of the second antenna element in the present embodiment, and the second antenna element 700 passes through connection
Route is configured on noble potential metal plate 200.
There are two types of structures to design for first antenna element 600, and also there are two types of structures to design for the second antenna element 700, above-mentioned more
Combination between kind structure should all be included in the protection scope of the present invention.
In the above embodiments of the present application, capacitor 401 in series resonant circuit 300 can by existing capacitor come
It realizes, as shown in fig. 7, capacitor 401 can also be realized by the cabling parallel with metal edge frame, cabling metal in parallel
Parasitic capacitance effect can be generated between frame, therefore, as long as realizing that other deformations of capacitor function or improvement all belong to
In the protection scope of the application.
The invention proposes a kind of slot antennas using resonant feed structure, and it is special in continuity to realize metal edge frame
The handset configuration of sign, reduces breaking joint technique and Shooting Technique in conventional mobile phone manufacturing process, and aesthetics is also improved；Together
When ensure that the high-quality signal radiance of metallic mobile phone antenna.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of slot antenna using resonant feed structure characterized by comprising the line of rabbet joint, resonant circuit and connecting line
Road；
The line of rabbet joint is surrounded by metal edge frame and ground potential metal plate and is formed；
The resonant circuit includes series resonant circuit, and one end of series resonant circuit is connected to the metal by connection line
Frame, the other end are connected to the feed position on ground potential metal plate by connection line；
The series resonant circuit includes capacitor and matching element, and matching element is capacitor, inductor, resistor or leads
Any one in line or any a variety of combination；
Series resonant circuit makes the line of rabbet joint form two electric current loops, and first electric current loop is formed around the line of rabbet joint, resonates in low-frequency range, the
Two electric current loops are formed by series resonant circuit and the line of rabbet joint, are resonated in high band.
2. utilizing the slot antenna of resonant feed structure as described in claim 1, which is characterized in that the shape of the line of rabbet joint
In concave shape, line of rabbet joint both ends are raised and extend to ground potential metal plate direction；Alternatively, the shape of the line of rabbet joint is L-shaped, the line of rabbet joint
One end is raised and extends to ground potential metal plate direction.
3. utilizing the slot antenna of resonant feed structure as claimed in claim 2, which is characterized in that the line of rabbet joint lug boss
The width divided in horizontal direction is more than or equal to 0.2mm, and the maximum width in the line of rabbet joint vertical direction is more than or equal to
5.0mm。
4. utilizing the slot antenna of resonant feed structure as claimed in claim 2, which is characterized in that the resonance series electricity
Capacitor in road is more than or equal to 5.0mm, the capacitor and metal at a distance from the top surface of the line of rabbet joint convex portion
The distance of the nearlyr side side of frame is more than or equal to 5.0mm.
5. utilizing the slot antenna of resonant feed structure as claimed in claim 4, which is characterized in that the resonance series electricity
Capacitor in road is within the scope of the line of rabbet joint, and the matching element in the series resonant circuit is within the scope of the line of rabbet joint.
6. utilizing the slot antenna of resonant feed structure as described in claim 1, which is characterized in that the resonant circuit is also
Including one or more tank circuit, tank circuit one end is connected to the metal edge frame by connection line,
The other end is connected to ground potential metal plate by connection line, and tank circuit includes capacitor and matching element, matching member
Part is any one or any a variety of combination in capacitor, inductor, resistor or conducting wire.
7. utilizing the slot antenna of resonant feed structure as described in claim 1, which is characterized in that further include first antenna
Element, first antenna element be arranged on the metal edge frame top margin or on ground potential metal plate, and with the resonance series
The distance of circuit is less than or equal to 20.0mm.
8. utilizing the slot antenna of resonant feed structure as claimed in claim 7, which is characterized in that the first antenna member
Plane is higher or lower than plane where the series resonant circuit where part.
9. utilizing the slot antenna of resonant feed structure as claimed in claim 7, which is characterized in that further include the second antenna
Element, the second antenna element is arranged on the series resonant circuit farther out side of side metal edge frame or ground potential
On metal plate.
10. utilizing the slot antenna of resonant feed structure as claimed in claim 9, which is characterized in that second antenna
Element is arranged on the series resonant circuit farther out side of side metal edge frame, and second antenna element is apart from institute
The distance for stating metal edge frame top margin is less than 15mm.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410497066.6A CN104269609B (en) | 2014-09-16 | 2014-09-16 | A kind of slot antenna using resonant feed structure |
| PCT/CN2015/089598 WO2016041486A1 (en) | 2014-09-16 | 2015-09-15 | Slot antenna using resonant feed structure |
| KR1020167007588A KR101731222B1 (en) | 2014-09-16 | 2015-09-15 | Slot antenna using feeding structure of resonance type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410497066.6A CN104269609B (en) | 2014-09-16 | 2014-09-16 | A kind of slot antenna using resonant feed structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104269609A CN104269609A (en) | 2015-01-07 |
| CN104269609B true CN104269609B (en) | 2019-03-15 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410497066.6A Active CN104269609B (en) | 2014-09-16 | 2014-09-16 | A kind of slot antenna using resonant feed structure |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101731222B1 (en) |
| CN (1) | CN104269609B (en) |
| WO (1) | WO2016041486A1 (en) |
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| Publication number | Publication date |
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| KR101731222B1 (en) | 2017-04-27 |
| KR20160089339A (en) | 2016-07-27 |
| CN104269609A (en) | 2015-01-07 |
| WO2016041486A1 (en) | 2016-03-24 |
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