CN102800948B - Antenna and wireless communication apparatus - Google Patents
Antenna and wireless communication apparatus Download PDFInfo
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- CN102800948B CN102800948B CN201110178651.6A CN201110178651A CN102800948B CN 102800948 B CN102800948 B CN 102800948B CN 201110178651 A CN201110178651 A CN 201110178651A CN 102800948 B CN102800948 B CN 102800948B
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Abstract
A kind of antenna comprises a medium substrate and is attached to ground unit on medium substrate, antenna also comprises the metal structure that is attached to described medium substrate, described metal structure comprises an electromagnetic response unit, for wrapping up a metal openings ring of described electromagnetic response unit and extending with one end of metal openings ring the feedback point that end is connected, described electromagnetic response unit comprises a field coupled structure and at least one metal sublayer structure, and described metal sublayer vibrational power flow is in described field coupled structure.This kind of design is equivalent to and adds antenna physical length, the radio-frequency antenna be operated under very low operation frequency can be designed in minimum space, solve the physical constraints of traditional antenna antenna controlled space area when low frequency operation, meet the requirement of the miniaturization of antenna for mobile phone, low operating frequency, broadband multimode.Simultaneously for the Antenna Design of wireless telecommunications system provides a kind of design of more low cost.
Description
Technical field
The present invention relates to a kind of field of antenna, particularly relate to a kind of antenna and apply the wireless communication apparatus of this antenna.
Background technology
Along with the high development of semiconductor technology, propose more and more higher requirement to current electronic system integrated level, the miniaturization of device becomes the technical problem that whole industry is paid special attention to.But, be different from the development that IC chip follows " Moore's Law ", as other important composition---the radio-frequency module of electronic system, be but faced with the highly difficult technological challenge of device miniaturization.Radio-frequency module mainly includes the main devices such as mixing, power amplifier, filtering, radio signal transmission, matching network and antenna.Wherein, antenna is as the radiating element of final radiofrequency signal and receiving device, and its operating characteristic will directly affect the service behaviour of whole electronic system.But the important indicator such as the size of antenna, bandwidth, gain but receives the restriction (gain margin under fixed dimension, bandwidth limit etc.) of basic physical principle.The general principle of these index limit makes the miniaturization technology difficulty of antenna considerably beyond other device, and the complexity of electromagnetic field analysis due to radio-frequency devices, approaching these limiting values all becomes huge technological challenge.
Meanwhile, complicated along with contemporary electronic systems, the demand of multimodal service becomes more and more important in the systems such as radio communication, wireless access, satellite communication, radio data network.And the demand of multimodal service further increases the complexity of miniature antenna multimodes design.The technological challenge that removing is miniaturized, 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 require that the miniaturized of antenna size harshly and ensures good isolation, radiance and antijamming capability simultaneously.But 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).Directly and the size positive correlation of antenna, the area positive correlation of bandwidth sum antenna, makes the design of antenna usually need the physical length of half-wavelength for the Radiation work frequency of traditional antenna.In the electronic system that some are more complicated, antenna needs multimode operation, just needs the impedance matching network design outside feed antenna forehead.But the feeder line design of electronic system that what impedance matching network was extra add, increase radio system area simultaneously matching network also introduce many energy losses, be difficult to the requirement of system design meeting low-power consumption.Therefore, miniaturized, multimodal new antenna technology becomes an important technology bottleneck of contemporary electronic integrated system.
Summary of the invention
The technical problem to be solved in the present invention is, existing antenna for mobile phone size is difficult to meet Modern Communication System low-power consumption, miniaturization and multi-functional designing requirement based on the physical length restriction of half-wavelength, therefore the invention provides the antenna of a kind of low-power consumption, miniaturization and multi-resonant 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 medium substrate, antenna also comprises the metal structure that is attached to described medium substrate, described metal structure comprises an electromagnetic response unit, for wrapping up a metal openings ring of described electromagnetic response unit and extending with one end of metal openings ring the feedback point that end is connected, described electromagnetic response unit comprises a field coupled structure and at least one metal sublayer structure, and described metal sublayer vibrational power flow is in described field coupled structure.
Further, described at least one metal sublayer structure to be arranged at respectively in described field coupled structure and to be connected as a body with field coupled structure.
Further, described at least one metal sublayer structure to be arranged at respectively in described field coupled structure and with field coupled structure Coupling.
Further, described metal sublayer structure is superposed by least two metal sublayer structure composites and forms a composition metal minor structure.
Further, described composition metal minor structure comprises three split ring resonator metal sublayer structures.
Further, the composition metal minor structure formed based on described three split ring resonator metal sublayer structures forms corresponding complementary composition metal minor structure.
Further, relative two surfaces of described medium substrate are all provided with ground unit, and described ground unit offers at least one plated-through hole.
Further, relative two surfaces of described medium substrate all adhesion metal structures.
Further, the described medium substrate metal structure shape of all adhering to relative to two surfaces is identical.
Further, the described medium substrate metal structure shape of all adhering to relative to two surfaces is not identical.
Further, described medium substrate is made up of any one material in ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.
Antenna described in a kind of wireless communication apparatus, wireless communication apparatus also comprises a pcb board, and described antenna is connected with pcb board.
This kind of design is equivalent to and adds antenna physical length, the radio-frequency antenna be operated under very low operation frequency can be designed in minimum space, solve the physical constraints of traditional antenna antenna controlled space area when low frequency operation, meet the requirement of the miniaturization of antenna for mobile phone, low operating frequency, broadband multimode.Simultaneously for the Antenna Design of wireless telecommunications system provides a kind of design of more low cost.
Accompanying drawing explanation
Fig. 1 is the stereogram of an embodiment in inventive antenna;
Fig. 2 is the schematic diagram of the metal structure of Fig. 1 antenna;
Fig. 3 is the stereogram of another embodiment of inventive antenna;
Fig. 4 a is a kind of split ring resonator metal sublayer structural plan figure in metal structure shown in Fig. 2;
A kind of complementary metal minor structure plane graph that Fig. 4 b is 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 metal structure shown in Fig. 2;
A kind of complementary metal minor structure plane graph that Fig. 5 b is the structure of helix metal sublayer shown in Fig. 5 a;
The plane graph of a kind of folding line metal sublayer structure that Fig. 6 a is metal structure shown in Fig. 2;
A kind of complementary metal minor structure plane graph that Fig. 6 b is 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 metal structure shown in Fig. 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 the two opening helical ring metal sublayer structural plan figure of the one in metal structure shown in Fig. 2;
Fig. 8 b is a kind of complementary metal minor structure plane graph of two opening helical ring metal sublayer structure shown in Fig. 8 a;
Fig. 9 is the stereogram of inventive antenna the 3rd embodiment;
Figure 10 is the stereogram of inventive antenna the 4th embodiment;
Figure 11 derives schematic diagram for the geometry of one of them structure of the structure of split ring resonator metal sublayer shown in Fig. 4 a;
Figure 12 derives schematic diagram for the geometry of another structure in split ring resonator metal sublayer structure complementary shown in Fig. 4 b;
Figure 13 a obtains a kind of metal sublayer structural plan figure for three complementary split ring resonator metal sublayer structure composites shown in Fig. 4 b derive;
A kind of complementary metal sublayer structural plan figure that Figure 13 b is metal sublayer structure shown in Figure 13 a;
Figure 14 is a wireless communication apparatus of application antenna of the present invention.
Embodiment
Particular content of the present invention is introduced in detail below in conjunction with Figure of description.
Please refer to Fig. 1, is the stereogram of an embodiment in inventive antenna.Described antenna 10 comprises medium substrate 11, is all attached to metal structure 12 on medium substrate 11 and ground unit 22.Described ground unit 22 for sheet metal and on offer by least one plated-through hole 23.In the present embodiment, an adhesion metal structure 12 on the surface of the medium substrate 11 of described antenna 10; Ground unit 22 is all provided with on relative two surfaces of medium substrate 11, also offer by through hole (not shown) at the matter substrate 11 of described plated-through hole 23 correspondence position, by these plated-through holes 23, each ground unit 22 disperseed is electrically connected formation publicly.In other embodiments, relative two surfaces of medium substrate 11 all adhesion metal structures 12 of described antenna 10, are all provided with ground unit 22 on relative two surfaces of medium substrate 11.
Please refer to Fig. 2, shown metal structure 12 comprises an electromagnetic response unit 120, for wrapping up a metal openings ring 121 of described electromagnetic response unit 120 and extending with one end of metal openings ring 121 the feedback point 123 that end is connected.Described electromagnetic response unit 123 comprises a field coupled structure (electric-field-coupled, abbreviation ELC).This kind of design is equivalent to and adds antenna physical length (physical length size does not increase), so just can design the radio-frequency antenna be operated under very low operation frequency in minimum space.Solve the physical constraints of traditional antenna antenna controlled space area when low frequency operation.
See also Fig. 2 and Fig. 3, the schematic diagram of the metal structure of antenna and the stereogram of inventive antenna second embodiment.In order to realize impedance matching and the better performance improving antenna 10, antenna 10 can also be revised further; Described metal structure 12 also comprises at least one metal sublayer structure 122, i.e. at least one metal sublayer structure 122 nested in the field coupled structure (electric-field-coupled, abbreviation ELC) of described electromagnetic response unit 123.In the present embodiment, nested four identical metal sublayer structures 122 respectively and being connected as a body (as shown in Figure 3) with field coupled structure in field coupled structure (ELC).In this other modes, described four identical metal sublayer structures 122 can directly adopt field coupled or inductance coupling high mode to be connected with field coupled structure.
The shape of at least two metal sublayer structures in above-mentioned four metal sublayer structures 122 is not identical, and namely described four metal sublayer structures 122 can be completely not identical or not with part.
Various wireless communication apparatus can adopt the antenna 10 or 20 in the present invention, but in order to the impedance matching between antenna 10 or 20 and various wireless communication apparatus or realize multimode operation pattern, described metal sublayer structure 122 can adopt the various metal sublayer structure to electromagnetic response and derived structure thereof.As described in metal sublayer structure 122 can select complementary split ring resonator metal sublayer structure (as shown in Fig. 4 a, 4b), namely as shown in Fig. 4 a, 4b, the shape of two kinds of metal sublayer structures forms complementation.
Metal sublayer structure 122 shown in described Fig. 4 a and 4b forms a pair complementary split ring resonator metal sublayer structure mutually.Because metal sublayer structure 122 is not as shown in fig. 4 a provided with connection end, the metal sublayer structure 122 therefore shown in Fig. 4 a can adopt coupled modes to be arranged in metal structure 12, thus forms described antenna 10 (as shown in Figure 9) of the present invention.In like manner, do not arrange shown in Fig. 4 b by connection end yet, coupled modes also can be adopted to be arranged in metal structure 12.
The opening helical ring metal sublayer structure that described metal sublayer structure 122 also can select as shown in figure 5a and 5b a pair complementary helix metal sublayer structure, a pair complementary folding line metal sublayer structure as shown in figure 6 a and 6b, as illustrated in figs. 7 a and 7b a pair complementary and the complementary two opening helical ring metal sublayer structures of as shown in figs. 8 a and 8b a pair.If described metal sublayer structure 122 is provided with connection end, then described metal sublayer structure 122 directly can be connected with metal structure 12, as Fig. 6 b metal sublayer structure 122.See also Figure 10, such as Fig. 6 b metal sublayer structure 122 is electrically connected in the field coupled structure of metal structure 12, thus obtain the antenna 10 that the present invention derives.Forming various bending places in above-mentioned various metal sublayer structure 122 is all rectangular shape.In other embodiments, it is fillet that metal sublayer structure 122 forms various bending places, as the rounded shapes of the bending place of electromagnetic response unit 120.
Described metal sublayer structure 122 can by a kind of or derived by several structure above, metal sublayer structure that compound or group battle array obtain.Derive and be divided into two kinds, one is that geometry derives, and another kind is that expansion is derivative.Geometry is herein derivative refers to that function class derives like, variform structure, such as derive open curve metal sublayer structure, open-delta metal sublayer structure, opening polygon metal sublayer structure and other different polygon class formation by square frame class formation, for the opening resonance metal subring structure shown in Fig. 4 a, Figure 11 derives schematic diagram for its geometry, and Figure 11 derives schematic diagram for its geometry.Draw corresponding complementary derived structure by above-mentioned geometry deriving mode, as based on as described in the complementary derived structure (as shown in figure 12) that formed of split ring resonator metal sublayer structure.
Expansion herein derive namely on the basis of the metal sublayer structure of Fig. 4 to Fig. 8 mutual complex superposition formed and meet metal sublayer structure; Compound herein refers to, at least two the metal sublayer structure composite superposition formation composition metal minor structure 122 as shown in Fig. 4 to Fig. 8.Composition metal minor structure be as depicted in fig. 13 a by three as shown in Figure 4 b complementary split ring resonator metal sublayer structure composite be nested to form.Thus obtain a kind of complementary composition metal minor structure (as illustrated in fig. 13b) by metal sublayer structure as depicted in fig. 13 a.
In the present invention, under described medium substrate 11,21 liang of apparent surfaces are provided with metal structure 12 situation, the metal structure 12 on two surfaces can connect, and also can not connect.When in the unconnected situation of metal structure 12 on described two surfaces, by capacitively coupled mode feed between the metal structure 12 on described two surfaces; In such cases, the thickness by changing medium substrate 11,21 can realize the resonance of the metal structure 12 on two surfaces.(such as connected by the form of wire or plated-through hole) metal structure 12 on described two surfaces is electrically connected, by inductive coupled mode feed between the metal structure 12 on described two surfaces.
In the present invention, medium substrate 11,21 is made up of ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.Preferably, being made up of macromolecular material, can be the macromolecular materials such as FR-4, F4B particularly.
In the present invention, metal structure 12 is made for copper or ag material.Be preferably copper, cheap, conduct electricity very well.In order to realize better impedance matching, metal structure 12 is also copper and silver combination, and such as, electromagnetic response unit 120 and metal sublayer structure 122 adopt ag material to make, and metal openings ring 121 and feedback point 123 adopt copper product to make, so can show that multiple copper and silver combine the metal structure 12 made.
In the present invention, about the processing and manufacturing of antenna, as long as meet design principle of the present invention, various manufacture can be adopted.Prevailing method is the manufacture method using all kinds of printed circuit board (PCB) (PCB), and certainly, metallized through hole, the PCB of double-sided copper-clad manufactures and also can meet processing request of the present invention.Except this processing mode, other manufacturing process can also be introduced according to the actual needs, such as (RFID is the abbreviation of RadioFrequency Identification to RFID, i.e. REID, is commonly called as electronic tag) in use conductive silver paste ink processing mode, all kinds of can the processing mode that combines of the flexible PCB processing of deformable element, the processing mode of iron plate antenna and iron plate and PCB.Wherein, iron plate and PCB Combined machining mode refer to and utilize the accurate processing of PCB to complete the processing of antenna micro groove structure, complete other slave part with iron plate.In addition, the method can also carved by etching, electroplating, bore quarter, photoetching, electronics quarter or ion is processed.
Refer to Figure 14, the above-mentioned antenna wireless communication device 100 of a kind of application, described device comprises a device case 97, antenna 10 described in a pcb board 99 in described device case 97 and the present invention is set.Described antenna is connected with pcb board.Described antenna is sent in pcb board processes for receiving electromagnetic wave signal and electromagnetic wave signal being converted to the signal of telecommunication.Adopt Antenna Design thought of the present invention, can according to the antenna being easy to design impedance matching of the communication frequency band of various wireless communication apparatus.Described wireless communication apparatus 100 includes but not limited to mobile phone, moving multimedia equipment, WIFI equipment, personal computer, bluetooth equipment, wireless router, wireless Internet card and guider etc.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
Claims (12)
1. an antenna, comprise a medium substrate and be attached to ground unit on medium substrate, it is characterized in that, antenna also comprises the metal structure that is attached to described medium substrate, described metal structure comprises an electromagnetic response unit, for wrapping up a metal openings ring of described electromagnetic response unit and extending with one end of metal openings ring the feedback point that end is connected, described electromagnetic response unit comprises a field coupled structure and at least one metal sublayer structure, described metal sublayer vibrational power flow is in described field coupled structure, described electromagnetic response unit and all elongated extension of described metal sublayer structure, perpendicular to bearing of trend transversely, described metal sublayer structure has the cross direction profiles size larger than described field coupled structure.
2. antenna according to claim 1, is characterized in that, described at least one metal sublayer structure to be arranged at respectively in described field coupled structure and to be connected as a body with field coupled structure.
3. antenna according to claim 1, is characterized in that, described at least one metal sublayer structure to be arranged at respectively in described field coupled structure and with field coupled structure Coupling.
4. the antenna according to claim 1,2 or 3, is characterized in that, described metal sublayer structure is superposed by least two metal sublayer structure composites and forms a composition metal minor structure.
5. antenna according to claim 4, is characterized in that, described 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 formed based on described 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 described medium substrate are all provided with ground unit, and described ground unit offers at least one plated-through hole.
8. antenna according to claim 7, is characterized in that, relative two surfaces of described medium substrate all adhesion metal structures.
9. antenna according to claim 8, is characterized in that, the metal structure shape that described medium substrate all adheres to relative to two surfaces is identical.
10. antenna according to claim 9, is characterized in that, the metal structure shape that described medium substrate all adheres to relative to two surfaces is not identical.
11. antennas according to claim 7, is characterized in that, described medium substrate is made up of any one material in ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.
12. 1 kinds of wireless communication apparatus, comprise antenna described in claim 1 to 11 any one claim, it is characterized in that, wireless communication apparatus also comprises a pcb board, and described 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 |
| 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 |
| TW100135531A TWI517492B (en) | 2011-06-29 | 2011-09-30 | Antenna and wireless communication device |
| EP11854522.7A EP2629366A4 (en) | 2011-06-29 | 2011-09-30 | Antenna and wireless communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110178651.6A CN102800948B (en) | 2011-06-29 | 2011-06-29 | Antenna and wireless communication apparatus |
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| Publication Number | Publication Date |
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| CN102800948A CN102800948A (en) | 2012-11-28 |
| CN102800948B true 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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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103928768B (en) * | 2014-04-14 | 2016-07-06 | 电子科技大学 | A kind of intensive monopole mimo antenna based on time reversal |
| 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 |
Citations (3)
| 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 |
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2011
- 2011-06-29 CN CN201110178651.6A patent/CN102800948B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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Effective date of registration: 20230403 Address after: 2 / F, software building, No.9, Gaoxin Zhongyi Road, Nanshan District, Shenzhen City, Guangdong Province Patentee after: KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Address before: 850100 Dazi Industrial Park, Lhasa, Tibet Patentee before: Tibet Dagze stern Industrial Development Co.,Ltd. |