CN103022650B - 2.4 GHz/5.8 GHz dual-frequency wireless communication device - Google Patents
2.4 GHz/5.8 GHz dual-frequency wireless communication device Download PDFInfo
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- CN103022650B CN103022650B CN201110228421.6A CN201110228421A CN103022650B CN 103022650 B CN103022650 B CN 103022650B CN 201110228421 A CN201110228421 A CN 201110228421A CN 103022650 B CN103022650 B CN 103022650B
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- 238000004891 communication Methods 0.000 title claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 49
- 229910052751 metal Inorganic materials 0.000 claims abstract description 49
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- 239000011888 foil Substances 0.000 claims description 3
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- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 description 12
- 230000000295 complement effect Effects 0.000 description 10
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
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- 230000005291 magnetic effect Effects 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 238000010276 construction Methods 0.000 description 1
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- 229910000859 α-Fe Inorganic materials 0.000 description 1
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Abstract
The invention discloses a 2.4 GHz/5.8 GHz dual-frequency wireless communication device, comprising an antenna, wherein the antenna comprises a dielectric substrate, and at least one antenna unit arranged on one surface of the dielectric substrate; each antenna unit comprises a feed unit, grounding units arranged at the both sides of the feed unit, a feed line connected with the feed unit, and a metal structure; and the antenna unit at least ensures that two electromagnetic waves with different frequency bands resonate. The resonant frequency bands of the electromagnetic waves designed by adopting an artificial electromagnetic material technology are 2.4 GHz-2.49 GHz and 4.9 G-5.9 GHz, and the dimensions of the metal structures are not limited by the physical length of a half-wavelength; the metal structures with impedance matching are selected according to the applied wireless communication device, and then designed to be corresponding antenna units; and the plurality of antenna units are applied to wireless electronic equipment, so that the performance information throughput of receiving or sending a wireless signal of the dual-frequency wireless communication device is remarkably improved.
Description
Technical field
The present invention relates to field of wireless communication, more particularly, relate to a kind of 2.4GHz/5.8GHz dual-band wireless communications device.
Background technology
Growing along with wireless communication technology, makes wireless telecommunications electronic equipment carry out multiple different frequency range communication need simultaneously and day by day strengthens.Existing wireless telecommunications electronic equipment generally adopts many radio-frequency antennas.But the important indicator such as the size of these 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.Such as, traditional terminal communication antenna mainly designs based on the radiation theory of electric monopole or dipole, 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 antenna technology becomes a problem demanding prompt solution of contemporary wireless telecommunications electronic equipment.The advantage of multi-input multi-output system (MIMO) technology can increase wireless range and improve performance.So-called MIMO refers to that wireless network signal is is synchronously received and dispatched by multiple antenna, so can increase data transmission rate.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.Channel capacity now linearly increases along with the increase of antenna amount.That is mimo channel can be utilized to improve radio channel capacity exponentially, and when not increasing bandwidth sum antenna transmitted power, the availability of frequency spectrum can improve exponentially.
Summary of the invention
The technical problem to be solved in the present invention is, break through the framework of traditional antenna design, save the somewhat complex design of impedance matching network, ensure that it is miniaturized, can be applied among size-constrained wireless communication apparatus, and aerial radiation area utilization is high, antijamming capability is strong and based on the frequency spectrum of existing frequency resource, improve antenna and send or receive information throughput.Therefore, the invention provides a kind of 2.4GHz/5.8GHz dual-band wireless communications device.
A kind of 2.4GHz/5.8GHz dual-band wireless communications device comprises an antenna, and described antenna comprises a medium substrate and is arranged at least one antenna element on medium substrate one surface; Each antenna element comprises a feed element, be arranged at the ground unit of feed element both sides, the feeder line that is connected with this feed element and a metal structure; Described antenna element at least makes the electromagnetic wave resonance of two different frequency ranges.
Further, described two different frequency ranges comprise 2.4GHz-2.49GHz and 4.9G-5.9GHz electromagnetic wave frequency range.
Further, described antenna element quantity is two.
Further, described metal structure is the foil structures of axisymmetric plane tabular.
Further, between described two antenna elements, Signal segregation degree is maximum is arranged on medium substrate.
Further, the shape of described ground unit is different.
Further, described ground unit can be established by metallized through hole.
Further, described two antenna elements are arranged at the same surface of medium substrate.
Further, described two antenna elements are arranged at relative two of medium substrate on the surface respectively.
Hinge structure, adopt artificial electromagnetic material Technology design to go out the metal structure that electromagnetic wave resonance band is 2.4GHz-2.49GHz and 4.9G-5.9GHz, these metal structure sizes do not limit by the physical length of half-wavelength; Choose the metal structure of impedance matching according to the wireless communication apparatus of application, be then designed to corresponding antenna element; These multiple antenna elements are applied in radio-based electronic devices, thus the performance information throughput that dual-band wireless communications device received or sent wireless signal is significantly improved.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is 2.4GHz/5.8GHz dual-band wireless communications device schematic diagram in the present invention;
Fig. 2 is the plane structure chart of the specific embodiment of antenna one shown in Fig. 1;
Fig. 3 is the plane structure chart of another specific embodiment of antenna shown in Fig. 1;
Fig. 4 is the plane structure chart of antenna shown in Fig. 1 the 3rd specific embodiment;
Fig. 5 is Fig. 3, an execution mode plane structure chart of antenna element in antenna shown in 4 and 5;
Fig. 6 is Fig. 3, another execution mode plane structure chart of antenna element in antenna shown in 4 and 5;
Fig. 7 is Fig. 3, the 3rd execution mode plane structure chart of antenna element in antenna shown in 4 and 5;
Fig. 8 is the present invention one complementary antenna unit plane structure chart;
Fig. 9 is that inventive antenna comprises a pair complementary antenna unit plane structure chart.
Figure 10 comprises complementary antenna unit plane structure chart shown in two Fig. 8 for inventive antenna.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention will be further described:
Referring to Fig. 1, is the schematic diagram of 2.4GHz/5.8GHz dual-band wireless communications device of the present invention.Described 2.4GHz/5.8GHz dual-band wireless communications device 100 comprises a body 101 and antenna 12.Described antenna 12 can receive 2.4GHz-2.49GHz and 4.9GHz-5.9GHz two frequency range electromagnetic waves, thus realizes 2.4GHz/5.8GHz dual-band wireless communications device 100 and receive simultaneously or send 2.4GHz-2.49GHz and 4.9GHz-5.9GHz two frequency range electromagnetic wave signals.In other embodiments, antenna 12 also can be placed on body 101 with the receiving intensity by enhanced radio magnetic signal.Described 2.4GHz/5.8GHz dual-band wireless communications device 100 includes but not limited to wireless data card, works in 2.4GHz and 5.8GHz electronic equipment without network interface card, wireless router, mobile phone, personal digital assistant, guider, blue-tooth device, notebook computer and WIFI wireless base station etc. are various simultaneously.
Referring to Fig. 2, is the structure chart of described antenna one specific embodiment.Two antenna elements 10 that described antenna 12 comprises a medium substrate 7 and is arranged on medium substrate 7.Two antenna elements 10 are separate to be arranged on medium substrate 7.In the present embodiment, two antenna elements 10 are arranged at the same surface of medium substrate 7.In other embodiments, described two antenna elements 10 are arranged at relative two of medium substrate 7 on the surface respectively.
Each antenna element 10 described comprises a feed element 5, be arranged at the ground unit 8 of feed element 5 both sides, the feeder line 4 that is connected with this feed element 5 and a metal structure 6.Wherein feeder line 4 and the mutual coupling electrical signals of metal structure 6 are connected; Described metal structure 6 is for adopting artificial electromagnetic material patten's design; Described artificial electromagnetic material is arranged in media substrate according to ad hoc fashion by artificial metal's conducting strip with certain pattern form.The material of medium substrate 7 can select the dielectric materials such as air, pottery, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.The pattern form that artificial metal's conducting strip is different and arrangement mode make Meta Materials have different dielectric constants and different magnetic permeabilitys thus make Meta Materials have different electromagnetic responses.Wherein, when this artificial metal's conducting strip is in resonance band, this artificial metal's conducting strip will show the dispersion characteristics of height, and the dispersion characteristics of so-called height refer to the impedance of this artificial metal's conducting strip, hold perception, equivalent dielectric constant and magnetic permeability along with frequency, and violent change can occur.In this book execution mode, above-mentioned 2.4GHz/5.8GHz dual-band wireless communications device, in order to improve signal data throughput, uses two antenna elements 10 based on MIMO technology.
Described metal structure 6 is the foil structures of axisymmetric plane tabular, and two corresponding resonance band are 2.4GHz-2.49GHz and 4.9G-5.9GHz.The corresponding antenna element 10 formed to receive with transmission frequency be the electromagnetic wave signal of 2.4GHz-2.49GHz and 4.9G-5.9GHz simultaneously.Wherein metal structure 6 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.
In the present embodiment, mutually disturb for reducing when two antenna elements 10 work, make feeder line 4 length of two antenna elements 10 unequal, and then two antenna element 10 Heterogeneous Permutations are arranged to make two antenna elements inhibit signal maximum isolation degree on medium substrate 7.In the feeder line 4 of ground unit 8 packet portion folder slightly wider than the feeder line 4 of other parts, and feeder line 4 one end arranges one for receiving signal of telecommunication feed element 5.In the present embodiment, feed element 5 is that a copper product is printed with on medium substrate 7.
Described ground unit 8 arranges corresponding width and length according to feeder line 4.In the present embodiment, due to two antenna element 10 Heterogeneous Permutations, therefore the shape of the ground unit 8 of two antenna elements 10 is different.
Referring to Fig. 3, is the structural representation of described another specific embodiment of antenna.The ground unit 8 of each antenna element 10 described can be established by metallized through hole 81.
Referring to Fig. 4, is the structural representation of described antenna preferred embodiment.The rest of described medium substrate 7 is arranged at perforation 82, and described perforation 82 object can alleviate product weight and the electronic equipment that contributes to coordinating it to apply dispels the heat.
Please also refer to Fig. 5, Fig. 6 and Fig. 7, between described feeder line 4 and metal structure 6, signal feed-in mode can be multiple.As shown in Figure 5, described feeder line 4 is directly connected with described metal structure 6; And described feeder line 4 can be positioned at the optional position in metal structure 6 with the connecting point position that is connected of metal structure 6.As shown in Figures 6 and 7, feeder line 4 adopts encirclement mode to be arranged at described metal structure 6 is peripheral and the end of feeder line 4 is arranged at the peripheral optional position of metal structure 6.
Referring to Fig. 8, is the antenna unit structure figure of another embodiment of the present invention complementary metal structure.Metal structure 6 ' in described antenna element 10 ' forms complementation with above-mentioned execution mode metal structure 6.That is, two parts are cut into, i.e. metal structure 6 and complementary metal structure 6 ' two parts by a complete sheet sheet metal.
Adhesion metal structure 6 or complementary metal structure 6 ' and feeder line 4 and distributing point 5 on medium substrate 7, thus form antenna element 10 of the present invention.In present embodiment, the feeder line 4 of two identical metal structures 6 ' and correspondence and distributing point 5 are arranged on same medium substrate 7, that is, two antenna elements 10 are arranged on same medium substrate 7 and form antenna 12 of the present invention.Described antenna 12 is plugged in the wireless communication apparatus comprising two resonance band (such as 2.4GHz-2.49GHz and 4.9G-5.9GHz) by interface.And described metal structure 6 and the mode of feeder line 4 can be identical, also can be different.In the present embodiment, described metal structure 6 all adopts indirect electrical connection mode, i.e. signal of telecommunication inductance capacitance mode feed-in with feeder line 4.
Refer to Fig. 9, for antenna element comprises a pair complementary antenna cellular construction figure.Metal structure 6 and the mutual complementary metal structure 6 of 6 ' two kinds, complementary metal structure are arranged on same medium substrate 7 and form an antenna module.Certainly, complementary metal structure 6 ' identical for shape is arranged on same medium substrate 7 also can forms antenna module of the present invention (as shown in Figure 10).
The present embodiment utilizes the characteristic of artificial electromagnetic material, adopt the mode of engraving into metal structure 6 on sheet metal, make metal structure 6 and jointly form the electromagnetic material of an effective dielectric constant according to the dispersion of Lorentz lorentz's material resonances model with the medium that metal structure depends on, thus design the antenna of multi-resonant frequency range.In the present embodiment, as shown in Fig. 2,3,4,9 and 10, antenna 12 can be used for operating frequency is in 2.4GHz and 5.8GHz wireless communication apparatus.
In the present embodiment, about the processing and manufacturing of antenna 12, 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 the PCB covering copper manufactures and all can meet processing request of the present invention.Also above-mentioned shaped metal structure 6, feeder line 4 and distributing point 5 all can be printed on FPC plate in addition.
Except above-mentioned processing mode, other manufacturing process can also be introduced according to the actual needs, as 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 chip microstructure portion, complete other slave part with iron plate.Owing to adopting the copper product of low cost to form described metal structure 6, therefore easily oxidized in exposure air and antenna module resonance frequency shift or performance are sharply declined, therefore antenna 12 is provided with nonmetallic anti-oxidation film on the surface.Because main performance of the present invention all designs based in metal structure 6, therefore, the radiation frequency impact of lead-in wire on antenna module of feeder line 4 is relatively little.
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 (8)
1. a 2.4GHz/5.8GHz dual-band wireless communications device, it is characterized in that, described 2.4GHz/5.8GHz dual-band wireless communications device comprises an antenna, described antenna comprises a medium substrate and is arranged at least one antenna element on medium substrate one surface, each described antenna element is separate to be arranged on described medium substrate, each described antenna element Heterogeneous Permutation; Each antenna element comprises a feed element, be arranged at the ground unit of feed element both sides, the feeder line that is connected with this feed element and a metal structure; Described metal structure is the foil structures of axisymmetric plane tabular; Described antenna element at least makes the electromagnetic wave resonance of two different frequency ranges.
2. 2.4GHz/5.8GHz dual-band wireless communications device according to claim 1, is characterized in that, described two different frequency ranges comprise 2.4GHz-2.49GHz and 4.9G-5.9GHz electromagnetic wave frequency range.
3. 2.4GHz/5.8GHz dual-band wireless communications device according to claim 2, is characterized in that, described antenna element quantity is two.
4. 2.4GHz/5.8GHz dual-band wireless communications device according to claim 3, is characterized in that, between described two antenna elements, Signal segregation degree is maximum is arranged on medium substrate.
5. 2.4GHz/5.8GHz dual-band wireless communications device according to claim 3, is characterized in that, the shape of described ground unit is different.
6. 2.4GHz/5.8GHz dual-band wireless communications device according to claim 1 or 5, is characterized in that, described ground unit can be provided with metallized through hole.
7. 2.4GHz/5.8GHz dual-band wireless communications device according to claim 3, is characterized in that, described two antenna elements are arranged at the same surface of medium substrate.
8. 2.4GHz/5.8GHz dual-band wireless communications device according to claim 3, is characterized in that, described two antenna elements are arranged at relative two of medium substrate on the surface respectively.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110228421.6A CN103022650B (en) | 2011-08-10 | 2011-08-10 | 2.4 GHz/5.8 GHz dual-frequency wireless communication device |
| TW100135534A TWI487199B (en) | 2011-08-10 | 2011-09-30 | Dual-band antenna, mimo antenna device and dual-band wireless communication device |
| PCT/CN2011/080553 WO2013020321A1 (en) | 2011-08-10 | 2011-10-08 | Dual-frequency antenna, mimo antenna device and 2.4ghz/5.8ghz dual-frequency wireless communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110228421.6A CN103022650B (en) | 2011-08-10 | 2011-08-10 | 2.4 GHz/5.8 GHz dual-frequency wireless communication device |
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| Publication Number | Publication Date |
|---|---|
| CN103022650A CN103022650A (en) | 2013-04-03 |
| CN103022650B true CN103022650B (en) | 2015-04-29 |
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| CN201110228421.6A Active CN103022650B (en) | 2011-08-10 | 2011-08-10 | 2.4 GHz/5.8 GHz dual-frequency wireless communication device |
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| CN103296391B (en) * | 2012-02-29 | 2017-04-19 | 深圳光启创新技术有限公司 | Antenna device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651256A (en) * | 2008-08-13 | 2010-02-17 | 深圳富泰宏精密工业有限公司 | tri-band antenna |
| CN101667680A (en) * | 2009-08-31 | 2010-03-10 | 深圳市启汉科技有限公司 | Monopole radio frequency 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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- 2011-08-10 CN CN201110228421.6A patent/CN103022650B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651256A (en) * | 2008-08-13 | 2010-02-17 | 深圳富泰宏精密工业有限公司 | tri-band 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 |
| CN101667680A (en) * | 2009-08-31 | 2010-03-10 | 深圳市启汉科技有限公司 | Monopole radio frequency antenna |
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