CN103022653A - Unipole antenna - Google Patents
Unipole antenna Download PDFInfo
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- CN103022653A CN103022653A CN2011102864531A CN201110286453A CN103022653A CN 103022653 A CN103022653 A CN 103022653A CN 2011102864531 A CN2011102864531 A CN 2011102864531A CN 201110286453 A CN201110286453 A CN 201110286453A CN 103022653 A CN103022653 A CN 103022653A
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Abstract
The invention provides a unipole antenna, comprising a dielectric substrate, a feeding point, a feeder line and a metal structure, wherein the feeding point is arranged at the surface of the dielectric substrate; the feeder line is connected with the feeding point; and the feeder line is mutually coupled to the metal structure. The antenna disclosed by the invention can receive or transmit an electromagnetic wave of a different wave band, and also can receive or transmit the electromagnetic waves of two or more different wave bands at the same time. The antenna disclosed by the invention can meet the mode requirements that a plurality of work frequency bands are provided in a single frequency and different work frequency bands simultaneously work in a plurality of frequencies, and the phenomenon that a plurality of antennas are needed when the existing wireless communication device works at different frequency bands. The antenna disclosed by the invention is the antenna resonated by the electromagnetic waves of one, two or more different wave bands designed by a metamaterial technology. Corresponding antenna can be designed according to the size of the wireless communication device, and the requirements of miniaturization of the wireless communication device and the built-in antenna are met.
Description
Technical field
The invention belongs to domain of communication equipment, be specifically related to a kind of unipole antenna.
Background technology
Along with the development of wireless communication technique, wireless telecommunications system has had more and more higher requirement, various structures has also been arranged adapting to the requirement of communication apparatus and receive with the antenna that sends as electromagnetic wave, with regard to performance or the structure of antenna higher challenge has been arranged.
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 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.Existing antenna can take larger space because the limit of functions of himself is the equipment that is placed on mostly, thereby the function of antenna, size become the technical bottleneck of the further reduced volume of equipment of using antenna.Therefore, miniaturization, the new antenna technology that performance is good become an important technology barrier of contemporary electronics integrated system.
In addition, the built-in antenna demand of various wireless telecommunications systems is more and more stronger, present various WAP (wireless access point) (AP) for example, the electronic equipments such as wireless router adopt 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, so rising, whole antenna cost impels whole WAP (wireless access point) (AP), the electronic equipment costs such as wireless router rise, and the built-in antenna mode will greatly save connector and mechanism's module cost.
Summary of the invention
In order to solve the problem that exists in the existing unipole antenna, the invention provides a kind of unipole antenna, by using super material technology designing antenna structure, under the prerequisite that satisfies the communication appliance performance requirement, realize the miniaturization of antenna, to achieve these goals, the present invention is by the following technical solutions:
A kind of unipole antenna, described unipole antenna comprise a medium substrate and a distributing point that is arranged at described medium substrate one surface, the feeder line that is connected with this 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 unipole 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, groove width is 0.15mm 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 unipole antenna makes a kind of electromagnetic wave resonance of wave band at least.
Further, the frequency band of described electromagnetic wave resonance wave band comprises 2.4GHz-2.49GHz and 5.72GHz-5.85GHz at least.
Further, be provided with nonmetallic anti-oxidation film on the described unipole antenna surface.
Antenna of the present invention is in the situation of not making change, can receive or send the electromagnetic wave of a different wave band, also can accept simultaneously or send the electromagnetic wave of two or more different wave band, the mode requirement that the different operating frequency range is worked simultaneously when having a plurality of working frequency range, multifrequency when using an antenna of the present invention to satisfy single-frequency has changed existing wireless telecommunications system needs many antennas when different frequency range is worked phenomenon.Antenna 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 telecommunications system miniaturization, built-in antenna.
Description of drawings
Fig. 1 is the structural representation of antenna embodiment 1 of the present invention;
Fig. 2 is the structural representation of antenna embodiment 2 of the present invention;
Fig. 3 is the enlarged diagram of metal structure among the antenna embodiment 2 of the present invention;
Fig. 4 is the S parameters simulation figure of the embodiment of the invention 2;
Fig. 5 is that the embodiment of the invention 2 operates in 2.4,2.44, E direction far field simulation result figure during 2.48GHz;
Fig. 6 is that the embodiment of the invention 2 operates in 2.4,2.44, H direction far field simulation result figure during 2.48GHz;
Fig. 7 is that the embodiment of the invention 2 operates in 5.725,5.8, E direction far field simulation result figure during 5.85GHz;
Fig. 8 is that the embodiment of the invention 2 operates 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 unipole antenna of the present invention is done a step explanation.
So-called unipole antenna is exactly to look from input to only have the antenna of an arm.Unipole 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.
As shown in Figure 1, be the structural representation of the unipole antenna 10 of the embodiment of the invention 1.Unipole 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.
Such as Fig. 2, Figure 3 shows that the enlarged diagram of the metal structure among the embodiment of the invention 2 antenna structure views and this embodiment 2.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 1.
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 2 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 unipole 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 4 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. 5, Fig. 6, Fig. 7 and Fig. 8 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.
Among the present invention, about the processing and manufacturing of unipole 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.Owing to adopt cheaply that copper product forms described metal structure 6, thus oxidized and unipole antenna 10 resonance frequency shifts or performance are sharply descended easily in the exposure air, so be provided with nonmetallic anti-oxidation film on the unipole antenna surface.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 unipole antenna 10.Based on these characteristics, unipole antenna can be placed in any position of system, the complexity of the installation testing of simplification flexibly.
Above-mentioned antenna 10 directly can be used the wireless communication apparatus particularly in AP and the wireless router that comprises 2.4GHz and 5.8GHz, this antenna 10 can directly be arranged on the pcb board of wireless communication apparatus, antenna 10 is built in the equipment of using this antenna, also can adopt interface that antenna 10 is connected with the pcb board of wireless communication apparatus by an interface, make antenna 10 external with respect to the equipment 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. a unipole antenna is characterized in that, described unipole 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. unipole antenna according to claim 1 is characterized in that, described metal structure is that sheet metal forms through engraving out the groove topological structure.
3. unipole antenna according to claim 1 is characterized in that, described unipole antenna also comprises ground unit, is provided with several metallized through holes on the described ground unit.
4. unipole antenna according to claim 3 is characterized in that, the described ground unit described distributing point both sides that distribute symmetrically.
5. unipole antenna 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. unipole antenna according to claim 5 is characterized in that, groove width is 0.15mm in the described groove topological structure.
7. each described unipole antenna is characterized in that according to claim 1-6, and described medium substrate is made by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.
8. each described unipole antenna is characterized in that according to claim 1-7, and described unipole antenna makes a kind of electromagnetic wave resonance of wave band at least.
9. unipole antenna according to claim 8 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.
10. described unipole antenna is characterized in that according to claim 1-9, and described unipole antenna is provided with nonmetallic anti-oxidation film on the surface.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102864531A CN103022653A (en) | 2011-09-23 | 2011-09-23 | Unipole antenna |
| 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 |
|---|---|---|---|
| CN2011102864531A CN103022653A (en) | 2011-09-23 | 2011-09-23 | Unipole antenna |
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| Publication Number | Publication Date |
|---|---|
| CN103022653A true CN103022653A (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102864531A Pending CN103022653A (en) | 2011-09-23 | 2011-09-23 | Unipole antenna |
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| CN (1) | CN103022653A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111475990A (en) * | 2020-03-20 | 2020-07-31 | 歌尔科技有限公司 | Method, device and system for designing monopole antenna |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US20080122700A1 (en) * | 2006-11-24 | 2008-05-29 | Hon Hai Precision Industry Co., Ltd. | Dual-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 |
| CN202275937U (en) * | 2011-09-23 | 2012-06-13 | 深圳光启高等理工研究院 | Monopole antenna |
-
2011
- 2011-09-23 CN CN2011102864531A patent/CN103022653A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US20080122700A1 (en) * | 2006-11-24 | 2008-05-29 | Hon Hai Precision Industry Co., Ltd. | Dual-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 |
| CN202275937U (en) * | 2011-09-23 | 2012-06-13 | 深圳光启高等理工研究院 | Monopole antenna |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111475990A (en) * | 2020-03-20 | 2020-07-31 | 歌尔科技有限公司 | Method, device and system for designing monopole antenna |
| CN111475990B (en) * | 2020-03-20 | 2023-09-05 | 歌尔科技有限公司 | Design method, device and system of monopole antenna |
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Application publication date: 20130403 |
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