CN103022655A - Wireless access device - Google Patents
Wireless access device Download PDFInfo
- Publication number
- CN103022655A CN103022655A CN2011102864870A CN201110286487A CN103022655A CN 103022655 A CN103022655 A CN 103022655A CN 2011102864870 A CN2011102864870 A CN 2011102864870A CN 201110286487 A CN201110286487 A CN 201110286487A CN 103022655 A CN103022655 A CN 103022655A
- Authority
- CN
- China
- Prior art keywords
- access device
- wireless access
- antenna
- metal structure
- data storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Details Of Aerials (AREA)
- Waveguide Aerials (AREA)
Abstract
The invention provides a wireless access device comprising a central processing unit, a data storage unit and a radio frequency unit, wherein the data storage unit and the radio frequency unit are connected with the central processing unit, the radio frequency unit comprises an antenna, and the antenna comprises a medium substrate, a feeding point arranged on one surface of the medium substrate, a feeder line connected with the feeding point, and a metal structure; and the feeder line is mutually coupled with the metal structure. The antenna of the wireless access device provided by the invention can be installed internally or externally, and the wireless access device applying the antenna can simultaneously receive or send two or more electromagnetic waves with different wavebands, so as to meet the mode needs that a plurality of working frequency bands exist in case of a single frequency, and work is performed simultaneously in different working frequency bands in case of multiple frequencies, thus changing the phenomenon that the existing wireless access device needs a plurality of antennas in case of working in the different frequency bands; and the physical dimensions of the metal structure of the antenna can not be limited by the physical length of a half-wavelength, so as to meet the needs of miniaturization and internal antenna arrangement of the wireless access device.
Description
Technical field
The invention belongs to domain of communication equipment, be specifically related to a kind of wireless access device.
Background technology
Development along with wireless communication technique, wireless telecommunications system has had more and more higher requirement, in order to satisfy the requirement of communication, existing various wireless access device adopts external antenna basically, the surplus energy of the industrial design of very big limits product and mechanism design performance, and external antenna also needs to design impedance matching connector and mechanism's module of adaptation, these connectors and mechanism's module have almost accounted for the cost of whole antenna more than 90 percent, impel the rising of whole wireless access device price so whole antenna cost rises, and the built-in antenna mode connector and mechanism's module cost will have greatly been saved.
Antenna is as radiating element and the receiving device of final radiofrequency signal, and its operating characteristic will directly affect the service behaviour of whole electronic system.Yet the important indicators such as the size of existing antenna, bandwidth, gain but have been subject to the restriction (gain margin under the fixed dimension, bandwidth limit etc.) of basic physical principle.The basic principle of these index limit so that 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.
The Radiation work frequency of traditional antenna directly and the size positive correlation of antenna, the area positive correlation of bandwidth and antenna is so that the design of antenna needs the physical length of half-wavelength usually.In some more complicated electronic systems, need to design by the impedance matching network outside the feed antenna forehead.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.Thereby the function of antenna, size become the wireless access device reduced volume, reduce the technical bottleneck of cost.
Summary of the invention
In order to solve the problem that exists in the existing wireless access device, the invention provides a kind of wireless access device, by using the antenna of super material technology design, under the prerequisite that satisfies the communication appliance performance requirement, can freely select built-in antenna and external, to achieve these goals, the present invention is by the following technical solutions:
A kind of wireless access device, comprise: CPU, data storage cell and radio frequency unit, described data storage cell is connected with described CPU with described radio frequency unit, described radio frequency unit comprises an antenna, and described antenna comprises a medium substrate and a distributing point that is arranged at described medium substrate one surface, the feeder line that is connected with described distributing point and a metal structure; Described feeder line and described metal structure intercouple.
Further, described metal structure is that sheet metal forms through engraving out the groove topological structure.
Further, described antenna also comprises ground unit, is provided with several metallized through holes on the described ground unit.
Further, the described ground unit described distributing point both sides that distribute symmetrically.
Further, groove width equates with the spacing of adjacent slot in the groove topological structure in the described groove topological structure.
Further, described medium substrate is made by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.
Further, described antenna makes a kind of electromagnetic wave resonance of wave band at least; The frequency band of described electromagnetic wave resonance wave band comprises 2.4GHz-2.49GHz and 5.72GHz-5.85GHz at least.
Further, described data storage cell stores WIFI or WLAN communications protocol.
Further, described data storage cell comprises read-only memory and random access memory.
Wireless access device of the present invention can freely be selected built-in antenna or external, and the electromagnetic wave of two or more different wave band can be accepted or send to the wireless access device of using this antenna simultaneously, the mode requirement that the different operating frequency range is worked simultaneously when having a plurality of working frequency range, multifrequency in the time of can satisfying single-frequency has changed existing wireless access device needs many antennas when different frequency range is worked phenomenon.Antenna in the wireless access device of the present invention is to use the send as an envoy to antenna of electromagnetic wave resonance of a wave band, two or more different-wavebands of super material technology design, the physical size that determines the metal structure size of this antenna volume is not limited by the physical length of half-wavelength, carry out signal coupling with feeder line and can obtain antenna among the present invention, can go out corresponding antenna according to the size design of wireless telecommunications system own, satisfy the demand of wireless access device miniaturization, built-in antenna.
Description of drawings
Fig. 1 is the structural representation of wireless access device of the present invention;
Fig. 2 is the structural representation of the embodiment 1 of the present invention's antenna of being applied to wireless access device;
Fig. 3 is the structural representation of the embodiment 2 of the present invention's antenna of being applied to wireless access device;
Fig. 4 is the enlarged diagram of metal structure among the embodiment 2 of the present invention's antenna of being applied to wireless access device;
Fig. 5 is the S parameters simulation figure of antenna shown in Figure 2;
Fig. 6 is antenna operation shown in Figure 2 in 2.4,2.44, E direction far field simulation result figure during 2.48GHz;
Fig. 7 is antenna operation shown in Figure 2 in 2.4,2.44, H direction far field simulation result figure during 2.48GHz;
Fig. 8 is antenna operation shown in Figure 2 in 5.725,5.8, E direction far field simulation result figure during 5.85GHz;
Fig. 9 is antenna operation shown in Figure 2 in 5.725,5.8, H direction far field simulation result figure during 5.85GHz.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is done a step explanation.
As shown in Figure 1, this wireless access device comprises CPU, data storage cell, radio frequency unit, power subsystem and auxiliary unit, power module provides CPU work required electric energy, CPU can be microcontroller or SOC, it also can be the RISC micro-chip processor, store communications protocol in the data storage cell, such as WIFI, the communications protocol such as WLAN, data storage cell can Further Division be read-only memory and random access memory, comprise antenna in the radio frequency unit, auxiliary unit can be man-machine interface, display, in power supply indicator or the status indicator lamp one or more.
CPU is connected with data memory module with radio-frequency module, central processing module is done exchanges data and processing by the antenna in the radio-frequency module and outside, CPU can be transferred communications protocol in the data storage cell, and carry out data storage or buffer memory, auxiliary unit is so that the onboard wireless access device has some complementary functions, such as the indicator light that shows connection status or show the power supply indicator etc. of electric power thus supplied.
As shown in Figure 2, be applied to the structural representation of antenna 10 of embodiment 1 of the antenna of wireless access device for the present invention.Antenna 10 in the present embodiment comprises medium substrate 7 and is arranged on the distributing point 5 on the medium substrate 7, the feeder line 4 that is connected with this distributing point 5, the metal structure 6 of plane tabular.Wherein, feeder line 4 intercouples with metal structure 6; Metal structure 6 is that sheet metal forms through engraving out groove topological structure 61, remove the material of groove topological structure 61 correspondences when engraving, remaining sheet metal is metal structure 6, after engraving out groove topological structure 61, presents the metal routing 62 that is included in the metal structure 6 on the sheet metal; The spacing of adjacent slot is the width of metal routing 62 in the groove topological structure 61, and the groove width of groove topological structure 61 equates with the width of metal routing 62, and is 0.15mm; Medium substrate 7 can be made by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material, preferably, made by macromolecular material, and can be the macromolecular materials such as FR-4, F4B particularly.
In the present embodiment, metal structure 6 is axisymmetric plane tabular.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 6 also can be copper and silver combination.
Be applied to embodiment 2 antenna structure views of antenna of wireless access device and the enlarged diagram of the metal structure among this embodiment 2 for the present invention as shown in Figure 3, Figure 4.The metal structure 6 that antenna 10 in the present embodiment 2 comprises medium substrate 7 and is arranged on the distributing point 5 on the medium substrate 7, the feeder line 4 that is connected with this distributing point 5, plane tabular is with all identical described in the embodiment 1, difference is also to comprise ground unit 8, is provided with some metallized through holes 81 on the ground unit 8; Ground unit 8 described distributing point 5 both sides that distribute symmetrically, the selection of medium substrate 7 is identical with embodiment shown in Figure 21.
Signal feed-in mode can have multiple between feeder line 4 and the metal structure 6.Described feeder line 4 directly links to each other with described metal structure 6; And described feeder line 4 and the connecting point position that links to each other of metal structure 6 can be positioned at the optional position on the metal structure 6.The end that feeder line 4 adopts the encirclement mode to be arranged at described metal structure 6 peripheries and feeder line 4 is arranged at metal structure 6 peripheral optional positions.
Present embodiment utilizes the characteristic of artificial electromagnetic material, the mode of metal structure is engraved in employing at sheet metal, form an effective dielectric constant according to the electromagnetic material of Lorentz lorentz's material resonances model dispersion so that metal structure and the medium substrate that depends on metal structure are common, thereby design the shake antenna of frequency range of multi resonant.In the present embodiment, antenna as shown in Figure 3 makes 2.4GHz-2.49GHz and two frequency range electromagnetic waves of 5.72GHz-5.85GHz resonance, the length of metal structure 6 and widely can do any adjustment according to the communication apparatus organization distribution, but metal structure 6 planforms keep with present embodiment in consistent getting final product, this antenna can be used for the communication apparatus of single-frequency 2.4GHz-2.49GHz or 5.72GHz-5.85GHz frequency range, also can be used for the communication apparatus of double frequency 2.4GHz-2.49GHz and 5.72GHz-5.85GHz frequency range.
Be illustrated in figure 5 as the S parameters simulation figure of the embodiment of the invention 2, the antenna that the figure shows embodiment 2 has respectively at 2.4GHz and 5.8018GHz-15.426dB and-loss of 19.184dB, in 2.4GHz-2.49GHz of the presently claimed invention and 5.72GHz-5.85GHz frequency band, all have-loss below the 10dB, show that antenna of the present invention can work separately in 2.4GHz-2.49GHz or 5.72GHz-5.85GHz frequency band, also can in 2.4GHz-2.49GHz and 5.72GHz-5.85GHz frequency band, work simultaneously, and satisfy in the wireless telecommunications system requirement to antenna.
Fig. 6, Fig. 7, Fig. 8 and Fig. 9 show respectively the embodiment of the invention 2 antenna operations in 2.4,2.44, when 2.48GHz and 5.725,5.8,5.85GHz respectively at vertical plane (E-Plane) and horizontal plane (H-Plane) direction far field simulation result figure, the polarization effect that can observe antenna of the present invention in this result is not second to existing antenna and meet application standard.
Antenna is based on the artificial electromagnetic material Technology design and forms among the present invention, artificial electromagnetic material refers to sheet metal is engraved into the topological metal structure of given shape, and the topological metal structure of described given shape is arranged on certain dielectric constant and the magnetic permeability base material and the equivalent extraordinary electromagnetic material of processing and manufacturing, its performance parameter depends primarily on the topological metal structure of the given shape of its sub-wavelength.In resonance band, artificial electromagnetic material embodies the dispersion characteristics of height usually, in other words, the impedance of antenna, holds perception, equivalent dielectric constant and magnetic permeability along with violent variation can occur frequency.Thereby can adopt the artificial electromagnetic material technology that the fundamental characteristics of above-mentioned antenna is transformed, so that the medium substrate that metal structure depends on it has formed a highly dispersed extraordinary electromagnetic material equivalently, thereby realize the new antenna that radiation characteristic is abundant.
Among the present invention, about the processing and manufacturing of antenna 10, as long as satisfy design principle of the present invention, can adopt various manufactures.Prevailing method is to use the manufacture method of all kinds of printed circuit board (PCB)s (PCB), as the PCB that covers copper makes and all can satisfy processing request of the present invention.Except this processing mode, can also introduce according to the actual needs other manufacturing process, but such as the flexible PCB processing of conductive silver paste printing ink processing mode, all kinds of deformation devices, the processing mode of iron plate antenna and the processing mode of iron plate and PCB combination.Wherein, iron plate and PCB combination processing mode refers to utilize the accurate processing of PCB to finish the processing of groove topological structure, finishes other slave part with iron plate.Because main performance of the present invention all concentrates on the design of metal structure 6 groove topological structures 61, therefore, the lead-in wire of feeder line 4 affects less to the radiation frequency of antenna 10.Based on these characteristics, antenna can be placed in any position of system, the complexity of the installation testing of simplification flexibly.
Above-mentioned antenna 10 is applied in the wireless access device that comprises 2.4GHz and 5.8GHz, this antenna 10 can directly be arranged on the pcb board of wireless access device, make antenna 10 be built in the wireless access device of using this antenna, also can adopt interface that antenna 10 is connected with the pcb board of wireless access device by an interface, make antenna 10 external with respect to the wireless access device of using this antenna.
More than be the description to the embodiment of the invention, the change that does not break away under the aim of the present invention all is within the protection of the present invention.
Claims (10)
1. wireless access device, comprise: CPU, data storage cell and radio frequency unit, described data storage cell is connected with described CPU with described radio frequency unit, described radio frequency unit comprises an antenna, and described antenna comprises a medium substrate and a distributing point that is arranged at described medium substrate one surface, the feeder line that is connected with described distributing point and a metal structure; Described feeder line and described metal structure intercouple.
2. wireless access device according to claim 1 is characterized in that, described metal structure is that sheet metal forms through engraving out the groove topological structure.
3. wireless access device according to claim 1 is characterized in that, described antenna also comprises ground unit, is provided with several metallized through holes on the described ground unit.
4. wireless access device according to claim 3 is characterized in that, the described ground unit described distributing point both sides that distribute symmetrically.
5. wireless access device according to claim 2 is characterized in that, groove width equates with the spacing of adjacent slot in the groove topological structure in the described groove topological structure.
6. each described wireless access device is characterized in that according to claim 1-5, and described medium substrate is made by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.
7. each described wireless access device is characterized in that according to claim 1-6, and described antenna makes a kind of electromagnetic wave resonance of wave band at least.
8. wireless access device according to claim 7 is characterized in that, the frequency band of described electromagnetic wave resonance wave band comprises 2.4GHz-2.49GHz and 5.72GHz-5.85GHz at least.
9. each described wireless access device is characterized in that according to claim 1-8, and described data storage cell stores WIFI or WLAN communications protocol.
10. each described wireless access device is characterized in that according to claim 1-9, and described data storage cell comprises read-only memory and random access memory.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102864870A CN103022655A (en) | 2011-09-23 | 2011-09-23 | Wireless access device |
| EP11854531.8A EP2760078B1 (en) | 2011-09-23 | 2011-11-08 | Monopole antenna, wireless access device, and wireless router |
| US13/521,744 US9160066B2 (en) | 2011-09-23 | 2011-11-08 | Unipolar antenna, wireless access apparatus and wireless router |
| PCT/CN2011/081901 WO2013040826A1 (en) | 2011-09-23 | 2011-11-08 | Monopole antenna, wireless access device, and wireless router |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102864870A CN103022655A (en) | 2011-09-23 | 2011-09-23 | Wireless access device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103022655A true CN103022655A (en) | 2013-04-03 |
Family
ID=47970948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102864870A Pending CN103022655A (en) | 2011-09-23 | 2011-09-23 | Wireless access device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103022655A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040108957A1 (en) * | 2002-12-06 | 2004-06-10 | Naoko Umehara | Pattern antenna |
| CN101175014A (en) * | 2006-11-03 | 2008-05-07 | 上海科泰信息技术有限公司 | General wireless grouping service wireless router with virtual special network function |
| CN101192702A (en) * | 2006-11-24 | 2008-06-04 | 鸿富锦精密工业（深圳）有限公司 | Double frequency antenna |
| CN101667680A (en) * | 2009-08-31 | 2010-03-10 | 深圳市启汉科技有限公司 | Monopole radio frequency antenna |
| CN202231150U (en) * | 2011-09-23 | 2012-05-23 | 深圳光启高等理工研究院 | Wireless access device |
-
2011
- 2011-09-23 CN CN2011102864870A patent/CN103022655A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040108957A1 (en) * | 2002-12-06 | 2004-06-10 | Naoko Umehara | Pattern antenna |
| CN101175014A (en) * | 2006-11-03 | 2008-05-07 | 上海科泰信息技术有限公司 | General wireless grouping service wireless router with virtual special network function |
| CN101192702A (en) * | 2006-11-24 | 2008-06-04 | 鸿富锦精密工业（深圳）有限公司 | Double frequency antenna |
| CN101667680A (en) * | 2009-08-31 | 2010-03-10 | 深圳市启汉科技有限公司 | Monopole radio frequency antenna |
| CN202231150U (en) * | 2011-09-23 | 2012-05-23 | 深圳光启高等理工研究院 | Wireless access device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202275938U (en) | Wireless router | |
| CN102931472B (en) | 2.4GHz/5.8GHz dual-band wireless communications device | |
| CN202217784U (en) | Dual-frequency antenna | |
| CN202275937U (en) | Monopole antenna | |
| CN202231150U (en) | Wireless access device | |
| CN202217785U (en) | 2.4G Hz/5.8GHz double-frequency wireless communication device | |
| CN103022655A (en) | Wireless access device | |
| CN103022653A (en) | Unipole antenna | |
| CN103022656A (en) | Wireless router | |
| CN202395143U (en) | Intelligent ammeter | |
| CN103036003A (en) | Intelligent electric meter | |
| CN103369733A (en) | Router | |
| CN103296390A (en) | Monopole antenna | |
| CN202259666U (en) | MIMO (Multiple Input Multiple Output) antenna device | |
| CN103369729A (en) | Router | |
| CN102931474A (en) | Antenna element and multiple-input multiple-output (MIMO) antenna device | |
| CN202395146U (en) | Projector | |
| TWI487199B (en) | Dual-band antenna, mimo antenna device and dual-band wireless communication device | |
| CN103022650B (en) | 2.4 GHz/5.8 GHz dual-frequency wireless communication device | |
| CN202905950U (en) | Intelligent household electrical appliance | |
| CN202395144U (en) | Sensing device | |
| CN202395148U (en) | 2.4 GHz/5.8 GHz double-frequency wireless communication device | |
| CN103036005A (en) | Projector | |
| CN103296389B (en) | A kind of Super-material antenna | |
| CN103036002A (en) | Sensing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130403 |