CN102800948A - Antenna and wireless communication device - Google Patents
Antenna and wireless communication device Download PDFInfo
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- CN102800948A CN102800948A CN2011101786516A CN201110178651A CN102800948A CN 102800948 A CN102800948 A CN 102800948A CN 2011101786516 A CN2011101786516 A CN 2011101786516A CN 201110178651 A CN201110178651 A CN 201110178651A CN 102800948 A CN102800948 A CN 102800948A
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Abstract
The invention discloses an antenna, which comprises a dielectric substrate, grounding units attached to the dielectric substrate and a metal structure attached to the dielectric substrate, wherein the metal structure comprises an electromagnetic response unit, a metal opening ring wrapping the electromagnetic response unit and a feed point connected with the extension tail end of one end of the metal opening ring; the electromagnetic response unit comprises an electric-field-coupled structure and at least one metal sub structure; and the metal sub structures are arranged in the electric-field-coupled structure. Due to the design, the physical length of the antenna is increased; a radio frequency antenna working at extremely low working frequency can be designed in extremely small space, and the physical limitation that the conventional antenna is limited by the space area when working at low frequency is prevented; and the requirements on minimization, low working frequency and broadband multimode of a mobile phone antenna are met. Furthermore, a design mode with relatively low cost is supplied to the design of the antenna of wireless communication equipment.
Description
Technical field
The present invention relates to a kind of field of antenna, relate in particular to a kind of antenna and use the wireless communication apparatus of this antenna.
Background technology
Along with the high development of semiconductor technology, current electronic system integrated level has been proposed increasingly high requirement, miniaturization of devices becomes the technical problem that whole industry is paid special attention to.Yet, be different from the development that the IC chip is followed " Moore's Law ", as other important composition---the radio-frequency module of electronic system, but be faced with the highly difficult technological challenge of device miniaturization.Radio-frequency module has mainly comprised main devices such as mixing, power amplifier, filtering, radio signal transmission, matching network and antenna.Wherein, antenna is as the radiating element and the receiving device of final radiofrequency signal, and its operating characteristic will directly influence the service behaviour of whole electronic system.Yet important indicators such as the size of antenna, bandwidth, gain have but received the restriction (gain margin under the fixed dimension, bandwidth limit etc.) of basic physical principle.The basic principle of these index limit makes the miniaturization technology difficulty of antenna considerably beyond other device, and because the complexity of the electromagnetic field analysis of radio-frequency devices, approaching these limiting values all becomes huge technological challenge.
Simultaneously, complicated along with contemporary electronic systems, the demand of multimode service becomes more and more important in systems such as radio communication, wireless access, satellite communication, radio data network.And the demand of multimode service has further increased the complexity of miniature antenna multimode design.Remove the technological challenge of miniaturization, the multimode impedance matching of antenna also becomes the bottleneck of antenna technology.On the other hand, the high speed development of multi-input multi-output system (MIMO) in radio communication, wireless data service field further required the miniaturization of antenna size harshly and guaranteed good isolation degree, radiance and antijamming capability simultaneously.Yet traditional terminal communication antenna mainly designs based on the radiation theory of electric monopole or dipole, such as the most frequently used planar inverted-F antenna (PIFA).The radiation operating frequency of traditional antenna directly and the size positive correlation of antenna, the area positive correlation of bandwidth and antenna makes the design of antenna need the physical length of half-wavelength usually.More in the complicated electronic system, antenna needs multimode operation, just need design at the impedance matching network outside the feed antenna forehead at some.But the increase that impedance matching network is extra the feeder line design of electronic system, increased radio system area simultaneously matching network also introduced many energy losses, be difficult to satisfy the requirement of system design of low-power consumption.Therefore, miniaturization, multimodal new antenna technology become an important technology bottleneck of contemporary electronics integrated system.
Summary of the invention
The technical problem that the present invention will solve is; Restriction is difficult to satisfy Modern Communication System low-power consumption, miniaturization and multi-functional designing requirement to existing antenna for mobile phone size based on the physical length of half-wavelength, so the present invention's antenna of providing a kind of low-power consumption, miniaturization and multi resonant to shake frequency.
The present invention also provides a kind of wireless communication apparatus of this antenna of application.
A kind of antenna comprises a medium substrate and is attached to ground unit on the medium substrate; Antenna comprises that also one is attached to the metal structure of said medium substrate; Said metal structure comprises an electromagnetic response unit, is used to wrap up a metal openings ring of said electromagnetic response unit and prolongs the terminal feedback point that links to each other with an end of metal openings ring; Said electromagnetic response unit comprises a field coupled structure and at least one metal sublayer structure, and said metal sublayer structure is arranged in the said field coupled structure.
Further, said at least one metal sublayer structure is arranged at respectively in the said field coupled structure and with the field coupled structure and is connected as a body.
Further, said at least one metal sublayer structure is arranged at respectively in the said field coupled structure and with the field coupled structure and is coupled.
Further, said metal sublayer structure forms a composition metal minor structure by at least two metal sublayer structure complex superposition.
Further, said composition metal minor structure comprises three split ring resonator metal sublayer structures.
Further, the composition metal minor structure that forms based on said three split ring resonator metal sublayer structures forms corresponding complementary composition metal minor structure.
Further, relative two surfaces of said medium substrate all are provided with ground unit, offer at least one plated-through hole on the said ground unit.
Further, the equal adhesion metal structure in relative two surfaces of said medium substrate.
Further, relative two surfaces of the said medium substrate metal structure shape of all adhering to is identical.
Further, relative two surfaces of the said medium substrate metal structure shape of all adhering to is inequality.
Further, said medium substrate is processed by any one material in ceramic material, macromolecular material, ferroelectric material, ferrite material or the ferromagnetic material.
The said antenna of a kind of wireless communication apparatus, wireless communication apparatus also comprises a pcb board, said antenna is connected with pcb board.
With this kind design of equivalent in having increased the antenna physical length; Can in minimum space, design the radio-frequency antenna that is operated under the very low operation frequency; Solve the physics limitation of traditional antenna antenna controlled space area when low frequency operation, satisfy the requirement of the miniaturization of antenna for mobile phone, low operating frequency, broadband multimode.For the Antenna Design of wireless telecommunications system a kind of more low-cost design mode is provided simultaneously.
Description of drawings
Fig. 1 is the stereogram of an embodiment in the antenna of the present invention;
Fig. 2 is the sketch map of the metal structure of Fig. 1 antenna;
Fig. 3 is the stereogram of another embodiment of antenna of the present invention;
Fig. 4 a is a kind of split ring resonator metal sublayer structural plan figure in the metal structure shown in Figure 2;
Fig. 4 b is a kind of complementary metal minor structure plane graph of the structure of split ring resonator metal sublayer shown in Fig. 4 a;
Fig. 5 a is a kind of helix metal sublayer structural plan figure in the metal structure shown in Figure 2;
Fig. 5 b is a kind of complementary metal minor structure plane graph of the structure of helix metal sublayer shown in Fig. 5 a;
Fig. 6 a is the plane graph of a kind of folding line metal sublayer structure of metal structure shown in Figure 2;
Fig. 6 b is a kind of complementary metal minor structure plane graph of the structure of folding line metal sublayer shown in Fig. 6 a;
Fig. 7 a is the plane graph of a kind of opening helical ring metal sublayer structure in the metal structure shown in Figure 2;
Fig. 7 b is a kind of complementary metal minor structure plane graph of the metal sublayer of opening helical ring shown in Fig. 7 a structure;
Fig. 8 a is a kind of couple of opening helical ring metal sublayer structural plan figure in the metal structure shown in Figure 2;
Fig. 8 b is a kind of complementary metal minor structure plane graph of two opening helical ring metal sublayer structures shown in Fig. 8 a;
Fig. 9 is the stereogram of antenna the 3rd embodiment of the present invention;
Figure 10 is the stereogram of antenna the 4th embodiment of the present invention;
Figure 11 is the geometry of one of them structure of split ring resonator metal sublayer structure shown in Fig. 4 a sketch map of deriving;
Figure 12 is the geometry of another structure in the complementary split ring resonator metal sublayer structure shown in Fig. 4 b sketch map of deriving;
Figure 13 a obtains a kind of metal sublayer structural plan figure for three compound deriving of complementary split ring resonator metal sublayer structure shown in Fig. 4 b;
Figure 13 b is a kind of complementary metal sublayer structural plan figure of metal sublayer structure shown in Figure 13 a;
Figure 14 is for using a wireless communication apparatus of antenna of the present invention.
Embodiment
Introduce particular content of the present invention in detail below in conjunction with Figure of description.
Please refer to Fig. 1, be the stereogram of an embodiment in the antenna of the present invention.Said antenna 10 comprises medium substrate 11, all attached to metal structure on the medium substrate 11 12 and ground unit 22.Said ground unit 22 for sheet metal and on offer by at least one plated-through hole 23.In this execution mode, adhesion metal structure 12 is gone up on a surface of the medium substrate 11 of said antenna 10; Relative two surfaces at medium substrate 11 all are provided with ground unit 22; Also offer by the through hole (not shown) at the matter substrate 11 of said plated-through hole 23 correspondence positions, form publicly through of ground unit 22 electrical connections of these plated-through holes 23 with each dispersion.In other embodiments, medium substrate 11 relative two surfaces of said antenna 10 are adhesion metal structure 12 all, all is provided with ground unit 22 on relative two surfaces of medium substrate 11.
Please refer to Fig. 2, shown in metal structure 12 comprise an electromagnetic response unit 120, be used to wrap up a metal openings ring 121 of said electromagnetic response unit 120 and prolong the terminal feedback point 123 that links to each other with an end of metal openings ring 121.Said electromagnetic response unit 123 comprises a field coupled structure (electric-field-coupled, abbreviation ELC).This kind design of equivalent so just can be designed the radio-frequency antenna that is operated under the very low operation frequency in having increased antenna physical length (the physical length size does not increase) in minimum space.Solve the physics limitation of traditional antenna antenna controlled space area when low frequency operation.
Please consult Fig. 2 and Fig. 3 in the lump, the stereogram of the sketch map of the metal structure of antenna and antenna of the present invention second embodiment.In order to realize impedance matching and the better performance that improves antenna 10, can also antenna 10 further be revised; Said metal structure 12 also comprises at least one metal sublayer structure 122, i.e. nested at least one metal sublayer structure 122 in the field coupled structure (electric-field-coupled, abbreviation ELC) of said electromagnetic response unit 123.In this execution mode, in field coupled structure (ELC) nested four identical metal sublayer structures 122 respectively and with field coupled structure be connected as a body (as shown in Figure 3).In these other modes, said four identical metal sublayer structures 122 can directly adopt field coupled or inductance coupling high mode to be connected with the field coupled structure.
The shape of at least two metal sublayer structures in above-mentioned four metal sublayer structures 122 is inequality, and promptly said four metal sublayer structures 122 can be inequality fully inequality with part.
Various wireless communication apparatus can adopt the antenna 10 or 20 among the present invention; But for antenna 10 or 20 and various wireless communication apparatus between impedance matching or realize that multimode operation pattern, said metal sublayer structure 122 can adopt various metal sublayer structure and derived structures thereof to electromagnetic response.Can select complementary split ring resonator metal sublayer structure (shown in Fig. 4 a, 4b) for use like said metal sublayer structure 122, promptly the shape of two kinds of metal sublayer structures forms complementation shown in Fig. 4 a, 4b.
Metal sublayer structure shown in said Fig. 4 a and the 4b 122 forms a pair of complementary split ring resonator metal sublayer structure each other.Because metal sublayer structure 122 shown in Fig. 4 a is provided with and connects terminally, so the metal sublayer structure 122 shown in Fig. 4 a can adopt coupled modes to be arranged in the metal structure 12, thereby forms said antenna 10 of the present invention (as shown in Figure 9).In like manner, be not provided with shown in Fig. 4 b yet, can adopt coupled modes to be arranged in the metal structure 12 yet by connecting end.
Said metal sublayer structure 122 also can be selected a pair of complementary helix metal sublayer structure, a pair of complementary folding line metal sublayer structure shown in Fig. 6 a and 6b, a pair of complementary opening helical ring metal sublayer structure shown in Fig. 7 a and 7b and a pair of complementary two opening helical ring metal sublayer structures shown in Fig. 8 a and 8b shown in Fig. 5 a and 5b for use.Connect end if said metal sublayer structure 122 is provided with, then said metal sublayer structure 122 can directly link to each other with metal structure 12, like Fig. 6 b metal sublayer structure 122.Please consult Figure 10 in the lump, will be electrically connected on the field coupled structure of metal structure 12, thereby obtain the antenna 10 that the present invention derives like Fig. 6 b metal sublayer structure 122.Forming various bending places in above-mentioned various metal sublayer structures 122 all is rectangular shape.In other embodiments, it is fillet that metal sublayer structure 122 forms various bending places, like the rounded shapes of the bending place of electromagnetic response unit 120.
Said metal sublayer structure 122 can by a kind of or through several kinds of structures in front derive, compound or a metal sublayer structure that group battle array obtains.Deriving is divided into two kinds, and a kind of is that geometry is derived, and another kind is that expansion is derived.The geometry is here derived and is meant that function class derives like, variform structure; For example by square frame class formation derive opening curve metal sublayer structure, open-delta metal sublayer structure, opening polygon metal sublayer structure and other different polygon class formation; Opening resonance metal sublayer ring structure with shown in Fig. 4 a is an example; Figure 11 is its geometry sketch map of deriving, and Figure 11 is its geometry sketch map of deriving.Thereby draw corresponding complementary derived structure by above-mentioned geometry deriving mode, like the complementary derived structure (shown in figure 12) that forms based on said split ring resonator metal sublayer structure.
The complex superposition of deriving promptly on the basis of the metal sublayer structure of Fig. 4 to Fig. 8 each other of the expansion here forms and meets the metal sublayer structure; Compound being meant here, at least two the metal sublayer structure complex superposition extremely shown in Figure 8 like Fig. 4 form a composition metal minor structure 122.Composition metal minor structure shown in Figure 13 a is by three compound being nested to form of complementary split ring resonator metal sublayer structure shown in Fig. 4 b.Thereby obtain a kind of complementary composition metal minor structure (shown in Figure 13 b) by the metal sublayer structure shown in Figure 13 a.
In the present invention, said medium substrate 11,21 liang of apparent surfaces all be provided with under metal structure 12 situation, and two lip-deep metal structures 12 can connect, and also can not connect.Under said two lip-deep metal structure 12 unconnected situation, between the said two lip-deep metal structures 12 through capacitively coupled mode feed; In such cases, can realize the resonance of two lip-deep metal structures 12 through the thickness that changes medium substrate 11,21.Under the situation that said two lip-deep metal structures 12 are electrically connected (for example the form through lead or plated-through hole connects), between the said two lip-deep metal structures 12 through inductive coupled mode feed.
Among the present invention, medium substrate 11,21 is processed by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.Preferably, being processed by macromolecular material, can be macromolecular materials such as FR-4, F4B particularly.
Among the present invention, metal structure 12 is processed for copper or ag material.Be preferably copper, cheap, conduct electricity very well.In order to realize better impedance matching; Metal structure 12 also is copper and silver combination, and for example, electromagnetic response unit 120 adopts ag material to process with metal sublayer structure 122; And metal openings ring 121 adopts copper product to process with feedback point 123, so can draw the multiple copper metal structure 12 that combination is processed with silver.
Among the present invention,,, can adopt various manufactures as long as satisfy design principle of the present invention about the processing and manufacturing of antenna.Prevailing method is to use the manufacturing approach of all kinds of printed circuit board (PCB)s (PCB), certainly, metallized through hole, the PCB of double-sided copper-clad makes also can satisfy processing request of the present invention.Remove this processing mode; Can also introduce other manufacturing process according to the needs of reality; (RFID is the abbreviation of Radio Frequency Identification such as RFID; Be REID, be commonly called as electronic tag) but in the processing mode that makes up of processing mode and iron plate and the PCB of flexible PCB processing, iron plate antenna of employed conductive silver paste printing ink processing mode, all kinds of deformation devices.Wherein, iron plate and PCB combination processing mode is meant that the accurate processing that utilizes PCB accomplishes the processing of antenna micro groove structure, accomplishes other slave part with iron plate.In addition, can also process through etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.
See also Figure 14, the above-mentioned antenna wireless communication device 100 of a kind of application, said device comprise a device case 97, antenna 10 described in a pcb board 99 and the present invention in the said device case 97 is set.Said antenna is connected with pcb board.Said antenna is used for receiving electromagnetic wave signal and converts electromagnetic wave signal into the signal of telecommunication and is sent to pcb board and handles.Adopt Antenna Design thought of the present invention, can be according to the antenna that is easy to design impedance matching of the communication frequency band of various wireless communication apparatus.Said wireless communication apparatus 100 includes but not limited to mobile phone, mobile multimedia equipment, WIFI equipment, personal computer, bluetooth equipment,, wireless router, wireless Internet card and guider etc.
Combine accompanying drawing that embodiments of the invention are described above; But the present invention is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under enlightenment of the present invention; Not breaking away under the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong within the protection of the present invention.
Claims (12)
1. antenna; Comprise a medium substrate and be attached to ground unit on the medium substrate; It is characterized in that; Antenna comprises that also one is attached to the metal structure of said medium substrate; Said metal structure comprises an electromagnetic response unit, is used to wrap up a metal openings ring of said electromagnetic response unit and the feedback point that links to each other with the end prolongation end of metal openings ring, and said electromagnetic response unit comprises a field coupled structure and at least one metal sublayer structure, and said metal sublayer structure is arranged in the said field coupled structure.
2. antenna according to claim 1 is characterized in that, said at least one metal sublayer structure is arranged at respectively in the said field coupled structure and with the field coupled structure and is connected as a body.
3. antenna according to claim 1 is characterized in that, said at least one metal sublayer structure is arranged at respectively in the said field coupled structure and with the field coupled structure and is coupled.
4. according to claim 1,2 or 3 described antennas, it is characterized in that said metal sublayer structure forms a composition metal minor structure by at least two metal sublayer structure complex superposition.
5. antenna according to claim 4 is characterized in that, said composition metal minor structure comprises three split ring resonator metal sublayer structures.
6. antenna according to claim 5 is characterized in that, the composition metal minor structure that forms based on said three split ring resonator metal sublayer structures forms corresponding complementary composition metal minor structure.
7. antenna according to claim 1 is characterized in that, relative two surfaces of said medium substrate all are provided with ground unit, offer at least one plated-through hole on the said ground unit.
8. antenna according to claim 7 is characterized in that, relative two surfaces of said medium substrate are the adhesion metal structure all.
9. antenna according to claim 8 is characterized in that, the metal structure shape that relative two surfaces of said medium substrate are all adhered to is identical.
10. antenna according to claim 9 is characterized in that, the metal structure shape that relative two surfaces of said medium substrate are all adhered to is inequality.
11. antenna according to claim 7 is characterized in that, said medium substrate is processed by any one material in ceramic material, macromolecular material, ferroelectric material, ferrite material or the ferromagnetic material.
12. a wireless communication apparatus comprises any said antenna of claim of claim 1 to 11, it is characterized in that wireless communication apparatus also comprises a pcb board, said antenna is connected with pcb board.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110178651.6A CN102800948B (en) | 2011-06-29 | 2011-06-29 | Antenna and wireless communication apparatus |
| EP11854522.7A EP2629366A4 (en) | 2011-06-29 | 2011-09-30 | Antenna and wireless communication device |
| TW100135531A TWI517492B (en) | 2011-06-29 | 2011-09-30 | Antenna and wireless communication device |
| PCT/CN2011/080410 WO2013000210A1 (en) | 2011-06-29 | 2011-09-30 | Antenna and wireless communication device |
| US13/521,444 US9136604B2 (en) | 2011-06-29 | 2011-09-30 | Antenna and wireless communication apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110178651.6A CN102800948B (en) | 2011-06-29 | 2011-06-29 | Antenna and wireless communication apparatus |
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| CN102800948A true CN102800948A (en) | 2012-11-28 |
| CN102800948B CN102800948B (en) | 2015-08-12 |
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| CN201110178651.6A Active CN102800948B (en) | 2011-06-29 | 2011-06-29 | Antenna and wireless communication apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769182A (en) * | 2012-07-03 | 2012-11-07 | 深圳光启创新技术有限公司 | Metamaterial antenna and electronic equipment |
| CN103928768A (en) * | 2014-04-14 | 2014-07-16 | 电子科技大学 | Intensive monopole MIMO antenna based on time reversal |
| CN105305039A (en) * | 2015-09-25 | 2016-02-03 | 上海新爱季信息技术有限公司 | Multilayer structured ZigBee antenna |
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| CN1906801A (en) * | 2004-01-16 | 2007-01-31 | 安蒂诺瓦有限公司 | A dual band diversity wlan antenna system for laptop computers, printers and similar devices |
| CN200972896Y (en) * | 2006-10-26 | 2007-11-07 | 浙江大学 | Microstrip antenna |
| CN101740862A (en) * | 2008-11-20 | 2010-06-16 | 东莞市启汉电子科技有限公司 | Dipole antenna of RF chip |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1906801A (en) * | 2004-01-16 | 2007-01-31 | 安蒂诺瓦有限公司 | A dual band diversity wlan antenna system for laptop computers, printers and similar devices |
| CN200972896Y (en) * | 2006-10-26 | 2007-11-07 | 浙江大学 | Microstrip antenna |
| CN101740862A (en) * | 2008-11-20 | 2010-06-16 | 东莞市启汉电子科技有限公司 | Dipole antenna of RF chip |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769182A (en) * | 2012-07-03 | 2012-11-07 | 深圳光启创新技术有限公司 | Metamaterial antenna and electronic equipment |
| CN102769182B (en) * | 2012-07-03 | 2015-03-25 | 深圳公众信息技术有限公司 | Metamaterial antenna and electronic equipment |
| CN103928768A (en) * | 2014-04-14 | 2014-07-16 | 电子科技大学 | Intensive monopole MIMO antenna based on time reversal |
| CN105305039A (en) * | 2015-09-25 | 2016-02-03 | 上海新爱季信息技术有限公司 | Multilayer structured ZigBee antenna |
| CN105305039B (en) * | 2015-09-25 | 2019-09-13 | 上海新爱季信息技术有限公司 | The ZigBee antenna of multilayered structure |
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| CN102800948B (en) | 2015-08-12 |
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