CN103187615A - Antenna, manufacturing method of antenna, printed circuit board and communication terminal - Google Patents
Antenna, manufacturing method of antenna, printed circuit board and communication terminal Download PDFInfo
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- CN103187615A CN103187615A CN2011104583316A CN201110458331A CN103187615A CN 103187615 A CN103187615 A CN 103187615A CN 2011104583316 A CN2011104583316 A CN 2011104583316A CN 201110458331 A CN201110458331 A CN 201110458331A CN 103187615 A CN103187615 A CN 103187615A
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- radiant body
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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
- 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
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Abstract
An embodiment of the invention discloses an antenna, a manufacturing method of the antenna, a printed circuit board and a communication terminal. The antenna comprises a first radiating body, a second radiating body and feed points, wherein the first radiating body and the second radiating body are made of metal materials, and are separated with each other through a dielectric isolation portion, the first radiating body surrounds the second radiating body, and the feed points are in bridge joint at two ends of the dielectric isolation portion, and are connected with the first radiating body and the second radiating body. The antenna performance is achieved through electromagnetic coupling of the dielectric isolation portion between metal bodies, and therefore costs of communication equipment are reduced and space use rates of the printed circuit board are improved.
Description
Technical field
The present invention relates to the communications field, relate more specifically to a kind of antenna and manufacture method thereof, printed circuit board (PCB) and communication terminal.
Background technology
Along with the continuous development of mobile radio telecommunications with popularize, the miniaturization of terminal equipment and product printed circuit board (PCB) (Printed Circuit Board, PCB) environment is complicated, makes to be used for emission and element---the antenna that receives wireless signal, needs to realize miniaturization more and more urgently.Yet from existing antenna form, owing to be subjected to the restriction of product layout environment, the required headroom of realization of performances such as the beamwidth of antenna, efficient and deviation in roundness more and more is difficult to satisfy, and has increased the difficulty that product performance index satisfies customer requirements.Therefore, guaranteeing under the situation that antenna performance meets the demands, effectively utilizing the product environment to realize that antenna miniaturization just becomes urgent especially.
A kind of mode of the prior art is to adopt traditional antenna form (as monopole antenna, microstrip antenna), reserve an empty regions at the PCB edge, do not place components and parts in this zone, antenna is printed on this zone, thereby realization radio communication, this situation antenna does not have height space to utilize, and the antenna cabling need take bigger plane space at PCB and realize required bandwidth of operation.
Another kind of mode of the prior art is to utilize the ultra-wideband antenna of coplanar wave guide feedback, coplanar waveguide feeder line and radiation sheet metal are laid on the dielectric-slab, radiation sheet metal adopts shapes such as rectangle and circle, the metal ground of dielectric-slab another side only is a part of length of metal radiation fin projection, can realize that antenna is operated in several frequency ranges such as conventional GSM850, GSM900, DCS, PCS, UMTS2100.Adopt this scheme, the bandwidth of antenna and efficient all can satisfy index request substantially, realize impedance transformation between microstrip line and the co-planar waveguide and the conversion of transmission mode but need to increase extra Ba Lun (Balance), increased the complexity of space requirement and design.
Summary of the invention
The objective of the invention is, propose a kind of antenna, can guarantee under the situation that antenna performance meets the demands, realize the miniaturization of antenna.
An aspect according to the embodiment of the invention, a kind of antenna is provided, described antenna comprises first radiant body and second radiant body of metal material, and is separated from one another by the medium isolation part between wherein said first radiant body and second radiant body, and first radiant body surrounds second radiant body; And the feedback point that is connected across two ends, described medium isolation part, connect described first radiant body and second radiant body.
Another aspect according to the embodiment of the invention provides a kind of printed circuit board (PCB), and it comprises one or more described antenna.
Another aspect according to the embodiment of the invention provides a kind of communication terminal, and it comprises above-mentioned printed circuit board (PCB).
Another aspect according to the embodiment of the invention, a kind of manufacture method of antenna has been proposed, comprise: first radiant body and second radiant body that make up metal material, separated from one another by the medium isolation part between wherein said first radiant body and second radiant body, and first radiant body surrounds second radiant body; And the feedback point that is connected across two ends, described medium isolation part is set, make the feedback point connect described first radiant body and second radiant body.
Because in the antenna according to the embodiment of the invention, the electromagnetic coupled between metallic object realizes antenna performance by the medium isolation part, reduce the space availability ratio of cost and the raising printed circuit board (PCB) of communication equipment thus.And, guaranteeing to have effectively utilized the product environment under the situation that antenna performance meets the demands, realized antenna miniaturization, ultra broadbandization, printingization.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use among the embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is antenna structure view according to an embodiment of the invention;
Fig. 2 is antenna structure view in accordance with another embodiment of the present invention;
Fig. 3 is antenna structure view in accordance with another embodiment of the present invention;
Fig. 4 is antenna structure view in accordance with another embodiment of the present invention;
Fig. 5 is the schematic diagram of antenna structure in accordance with another embodiment of the present invention;
Fig. 6 shows the schematic diagram of antenna structure in accordance with another embodiment of the present invention;
Fig. 7 shows the curve chart of the antenna return loss that realizes according to the antenna of the embodiment of the invention;
Fig. 8 shows the efficient according to the antenna of the embodiment of the invention; And
Fig. 9 shows the flow chart according to the method for manufacturing antenna of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is carried out clear, complete description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the invention provides a kind of antenna, and it has effectively utilized the PCB metallic object to realize antenna performance.
Fig. 1 is antenna structure view according to an embodiment of the invention.As seen, the antenna according to the embodiment of the invention comprises: first radiant body 1 of metal material and second radiant body 3.The metal material here can be any metal material of making antenna that is applicable to well-known to those skilled in the art, does not influence essence of the present invention.Preferably, first radiant body and second radiant body are to accompany the radiant body that the metal material on the pcb board of medium substrate constitutes.As can see from Figure 1, separated from one another by medium isolation part 2 between first radiant body 1 and second radiant body 3, this medium isolation part 2 for example can form by the medium substrate that the surface metal material of pcb board is removed to expose in the pcb board by etching, perhaps also can be that the hole that digs out forms (wherein air can be used as the medium isolation part).First radiant body 1 surrounds second radiant body 3.Second radiant body 3 is main parts of antenna, and it can have various default shapes, for example rectangle, snakelike, annular etc.In addition, when first radiant body and second radiant body were formed on the pcb board, they can be positioned on the single face of pcb board, also may extend to the upper and lower surface of pcb board from the side.In addition, this antenna also comprises feedback point 4, and described feedback point 4 is connected across the two ends of described medium isolation part 2, connects described first radiant body 1 and second radiant body 3.Need be fed into by feedback point 4 by the signal that this antenna sends and launch in the antenna, perhaps the signal that receives by antenna is presented some output via this.
In embodiments of the present invention, adopt first radiant body to surround the form of second radiant body, second radiant body is carried out direct feed, thereby motivate low-frequency current on first radiant body by producing the strong capacitive coupled mode between first radiant body and second radiant body, realize antenna performance by the electromagnetic coupled of medium isolation part between first radiant body and second radiant body.Simultaneously by regulating the specification of the medium isolation part between second radiant body and first radiant body, but the bin width of extended high frequency finally realizes the radiation characteristic of low-and high-frequency wideband section.
Fig. 2 is antenna structure view in accordance with another embodiment of the present invention.As seen, first radiant body, second radiant body, the feedback of antenna in comprising above-described embodiment put, can also comprise: tuned cell 5, described tuned cell 5 are arranged between first radiant body 1 and second radiant body 3, are used for connecting first radiant body 1 and second radiant body 3.Because tuned cell produces the impedance operator of capacitive and perception, can change the CURRENT DISTRIBUTION of first radiant body 1 and second radiant body 3 by tuned cell, make the input impedance of antenna can distribute the input bandwidth of change antenna according to predetermined rule.In embodiments of the present invention, described tuned cell 5 can be distributed parameter components and parts, the connection sheet metal of preset shape for example, and these components and parts show capacitance characteristic and inductance characteristic under high frequency situations.Alternatively, tuned cell 5 also can be lumped parameter components and parts (as electric capacity, inductance), can certainly be the combination of two types of components and parts, and this paper does not do concrete restriction to this.By the increase tuned cell, thereby play the effect that improves the aerial radiation characteristic.
, can repeat no more here referring to the specific descriptions among the embodiment of front as first radiant body, second radiant body, feedback point and medium isolation part etc. about other features of antenna.
Fig. 3 is antenna structure view in accordance with another embodiment of the present invention.As seen, antenna can also comprise prolonging metal object 6 except comprising first radiant body, second radiant body, feedback point.Though Fig. 3 only shows prolongation metal object 6 is arranged on first radiant body, yet described prolongation metal object 6 can be arranged on first radiant body and/or on second radiant body.For example, can the end that metal object is arranged on first radiant body will be prolonged.Because the length of first radiant body is relevant with the operating frequency of antenna, length is more big, and then operating frequency is more low.In order to satisfy actual requirement, prolong metal object 6 by increasing at radiant body in embodiments of the present invention, both can avoid increasing pcb board and take too much space and increase cost, can satisfy the requirement to the low frequency part of operating frequency again.Wherein prolonging metal object can be metal clips, metal spraying thing or flexible printed circuit board etc., and the shape that prolongs metal object also can design as required, and the present invention is not restricted this.
, can repeat no more here referring to the specific descriptions among the embodiment of front as first radiant body, second radiant body, feedback point and medium isolation part etc. about other features of antenna.
Fig. 4 is antenna structure view in accordance with another embodiment of the present invention.As seen, antenna can also comprise except comprising first radiant body, second radiant body, feedback point: the suspension metal object 7 of preset shape, its in the accompanying drawings with dashed lines show.Described suspension metal object 7 is arranged near the medium isolation part, and for example possible is to be provided with the support (not shown) that insulating material constitutes near the medium isolation part, and suspension metal object 7 is attached on this support.The suspension metal object can be the complete metal body, have the object of metal coating or conducting foam etc.By the suspension metal object of preset shape is set, can play the effect that reduces radiation value (SAR) or improve head mould, fingerprint, phantom influence near described medium isolation part.
, can repeat no more here referring to the specific descriptions among the embodiment of front as first radiant body, second radiant body, feedback point and medium isolation part etc. about other features of antenna.
Fig. 5 is the schematic diagram of antenna structure in accordance with another embodiment of the present invention.As seen, antenna can comprise a plurality of second radiant bodies 3, and they arrange according to predefined distance.These antenna for example one other are as slave antenna as main antenna, they are placed on the same area, make antenna arrangement more compact, thereby reduce the space hold of a plurality of antennas on pcb board.
Fig. 6 shows the schematic diagram of antenna structure in accordance with another embodiment of the present invention.In structure shown in Figure 6, two second radiant bodies separate with first radiant body by medium isolation part separately respectively.Be similar to structure shown in Figure 5, structure shown in Figure 6 also can be so that antenna arrangement be more compact, thereby reduces the space hold of a plurality of antennas on pcb board.
It is to be noted, though described tuned cell, prolongation metal object, these additional devices of suspension metal object among superincumbent each embodiment respectively, those skilled in the art expect easily and these attachment device combination in any ground can be used that they all are included in the scope of the embodiment of the invention.
According to another embodiment of the invention, also proposed a kind of printed circuit board (PCB), described printed circuit board (PCB) comprises that one or more according to the described antenna of embodiment, also comprises the feeder line that is connected with described feedback point; The signal that described feeder line is used for will needing to launch is transferred to described feedback point, so that the described signal that needs emission of described antenna emission perhaps is used for obtaining the signal that receives by described antenna.
The antenna that proposes according to the embodiment of the invention has ultra wide bandwidth, and its working frequency range can cover present radio communication device frequency ranges such as GSM850, GSM900, DCS, PCS, UMTS2100, GPS and Bluetooth commonly used from 824MHz to 2484MHz.Simultaneously, the efficient of antenna can reach the level of traditional antenna.Fig. 7 shows the curve chart of the antenna return loss that realizes according to the antenna of the embodiment of the invention.In Fig. 7, abscissa is represented the operating frequency (unit is hertz) of antenna, and ordinate is represented the reflection loss (unit is dB) of antenna, i.e. this area S11 parameter commonly used.And Fig. 8 shows the efficient of described antenna and the relation of operating frequency of antenna.
The scheme that proposes by the embodiment of the invention, realized the antenna ultra broadbandization, make radio communication device can support more multiband, also realized simultaneously the antenna printingization, the antenna requisite space be far smaller than the built-in planar inverted-F antenna of conventional mobile phone (Planar Inverted-F Antenna, PIFA), the monopole antenna requisite space.
Scheme according to the embodiment of the invention can be applied on the various end products, as composite aircraft, access point (Access Point, AP), wireless Internet card, fixed network and mobile network are merged (Fixed-Mobile Covergence, FMC), mobile internet device (Mobile Internet Device, MID), fixed station etc.
Correspondingly, according to one embodiment of present invention, also propose a kind of communication terminal, comprised the described printed circuit board (PCB) of the embodiment of the invention.
According to one embodiment of present invention, a kind of method of making described antenna has also been proposed.Fig. 9 shows the flow chart of this method.As seen, this method comprises:
Step 910: make up first radiant body and second radiant body of metal material, separated from one another by the medium isolation part between wherein said first radiant body and second radiant body, and first radiant body surrounds second radiant body; And
Step 920: the feedback point that is connected across two ends, described medium isolation part is set, makes the feedback point connect described first radiant body and second radiant body.
First radiant body and second radiant body of wherein said structure metal material specifically can comprise: use Corrosive Materia that the dielectric-slab that has metal coating is corroded, form described first radiant body and second radiant body, wherein said medium isolation part forms by the dielectric-slab of the metal coating that is corroded.
The order of the invention described above embodiment does not represent the quality of embodiment just to description.
The scheme of the content record of claim also is the open scope of the embodiment of the invention.
The above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. an antenna is characterized in that, comprising:
First radiant body of metal material and second radiant body, separated from one another by the medium isolation part between wherein said first radiant body and second radiant body, and first radiant body surrounds second radiant body; And
The feedback point, described feedback point is connected across two ends, described medium isolation part, connects described first radiant body and second radiant body.
2. antenna according to claim 1 wherein is provided with tuned cell between first radiant body and second radiant body, is used for connecting described first radiant body and described second radiant body.
3. antenna according to claim 2, wherein said tuned cell is the connection sheet metal of preset shape.
4. antenna according to claim 2, wherein said tuned cell is the lumped parameter components and parts.
5. antenna according to claim 1, wherein first radiant body and second radiant body are provided with the prolongation metal object.
6. antenna according to claim 1, wherein first radiant body or second radiant body are provided with the prolongation metal object.
7. according to claim 5 or 6 described antennas, wherein said prolongation metal object is metal clips, metal spraying thing or flexible printed circuit board.
8. antenna according to claim 1 wherein is provided with the suspension metal object of preset shape near described medium isolation part.
9. antenna according to claim 8, described suspension metal object be the complete metal body, have object or the conducting foam of metal coating.
10. antenna according to claim 1, wherein said antenna comprises at least two second radiant bodies, described at least two second radiant bodies according to predefined apart from each interval.
11. a printed circuit board (PCB) comprises that one or more according to each the described antenna in the aforesaid right requirement 1 to 10, also comprises the feeder line that is connected with described feedback point; The signal that described feeder line is used for will needing to launch is transferred to described feedback point, so that the described signal that needs emission of described antenna emission perhaps is used for obtaining the signal that receives by described antenna.
12. a communication terminal comprises printed circuit board (PCB) according to claim 11.
13. the manufacture method of an antenna comprises:
Make up first radiant body and second radiant body of metal material, separated from one another by the medium isolation part between wherein said first radiant body and second radiant body, and first radiant body surrounds second radiant body; And
Setting is connected across the feedback point at two ends, described medium isolation part, makes the feedback point connect described first radiant body and second radiant body.
14. manufacture method according to claim 13, first radiant body and second radiant body of wherein said structure metal material specifically comprise:
Use Corrosive Materia that the dielectric-slab that has metal coating is corroded, form described first radiant body and second radiant body, wherein said medium isolation part is made of the dielectric-slab of the metal coating that is corroded.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110458331.6A CN103187615B (en) | 2011-12-31 | 2011-12-31 | Antenna and manufacture method, printed circuit board (PCB), communication terminal |
| PCT/CN2012/087092 WO2013097645A1 (en) | 2011-12-31 | 2012-12-21 | Antenna and manufacturing method thereof, printed circuit board, and communications terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110458331.6A CN103187615B (en) | 2011-12-31 | 2011-12-31 | Antenna and manufacture method, printed circuit board (PCB), communication terminal |
Publications (2)
| Publication Number | Publication Date |
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| CN103187615A true CN103187615A (en) | 2013-07-03 |
| CN103187615B CN103187615B (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110458331.6A Active CN103187615B (en) | 2011-12-31 | 2011-12-31 | Antenna and manufacture method, printed circuit board (PCB), communication terminal |
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| Country | Link |
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| CN (1) | CN103187615B (en) |
| WO (1) | WO2013097645A1 (en) |
Cited By (4)
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| CN106450678A (en) * | 2016-10-24 | 2017-02-22 | 宇龙计算机通信科技(深圳)有限公司 | Antenna assembly and terminal |
| CN106663875A (en) * | 2015-05-28 | 2017-05-10 | 华为技术有限公司 | Slot antenna and electronic device |
| CN107510456A (en) * | 2017-08-17 | 2017-12-26 | 佛山市丈量科技有限公司 | A kind of radio frequency sensor and sensor array suitable for wearable intelligent dress ornament |
| CN112968274A (en) * | 2021-02-03 | 2021-06-15 | 维沃移动通信有限公司 | Electronic device |
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| CN104600440B (en) * | 2015-01-09 | 2016-08-24 | 努比亚技术有限公司 | Mobile terminal and antenna structure thereof |
| CN106100662B (en) * | 2016-05-27 | 2018-11-09 | 上海传英信息技术有限公司 | Printed circuit board and wireless communication device with printed circuit board |
| CN107093799B (en) * | 2017-04-07 | 2019-08-30 | 深圳市景程信息科技有限公司 | Restructural bimodulus monopole antenna ax-shaped |
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| CN112968274B (en) * | 2021-02-03 | 2023-12-15 | 维沃移动通信有限公司 | Electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103187615B (en) | 2016-07-27 |
| WO2013097645A1 (en) | 2013-07-04 |
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Effective date of registration: 20171027 Address after: Metro Songshan Lake high tech Industrial Development Zone, Guangdong Province, Dongguan City Road 523808 No. 2 South Factory (1) project B2 -5 production workshop Patentee after: HUAWEI terminal (Dongguan) Co., Ltd. Address before: 518129 Longgang District, Guangdong, Bantian HUAWEI base B District, building 2, building No. Patentee before: Huawei Device Co., Ltd. |
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Address after: 523808 Southern Factory Building (Phase I) Project B2 Production Plant-5, New Town Avenue, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province Patentee after: Huawei Device Co., Ltd. Address before: 523808 Southern Factory Building (Phase I) Project B2 Production Plant-5, New Town Avenue, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province Patentee before: HUAWEI terminal (Dongguan) Co., Ltd. |
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