CN103095322B - WIFI terminal device based on smart antenna - Google Patents
WIFI terminal device based on smart antenna Download PDFInfo
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- CN103095322B CN103095322B CN201110331072.0A CN201110331072A CN103095322B CN 103095322 B CN103095322 B CN 103095322B CN 201110331072 A CN201110331072 A CN 201110331072A CN 103095322 B CN103095322 B CN 103095322B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The present invention relates to a kind of WIFI terminal device based on smart antenna, it comprises radio reception device main body and antenna. Described antenna is smart antenna, it is provided with some super material antenna elements, described super material antenna element comprises medium substrate, metal structure, feeder line and reference ground, described feeder line and described metal structure intercouple, described with reference to ground comprise be positioned at relative two surfaces of described medium substrate first with reference to ground unit and second with reference to ground unit, described first with reference to ground unit make described feeder line one end form microstrip line. Microstrip line described in the topological form of the WIFI terminal device that the present invention is based on smart antenna by control antenna metal structure critically and rational deployment, just the effective dielectric constant and the magnetic conductivity that obtain needing distribute, make antenna can in working frequency range, realize impedance matching preferably, complete expeditiously power conversion, and obtain desirable radiation pattern, gain high, in addition, it is little that described antenna takies volume, thereby the overall volume of equipment is little, low to environmental requirement.
Description
Technical field
The present invention relates to wireless radio reception device technical field, relate in particular to a kind of based on smart antennaWIFI terminal device.
Background technology
WIFI (wirelessfidelity) is one data communication system flexibly, and it can be implemented as rightThe expansion of cable LAN (LAN) or alternative. Typically, WIFI uses radio frequency (RF) technology to send out aloftSend and receive data, and do not rely on any physical connection. The stacked data being sent out is added on wireless carrier,Make it accurately to be extracted at receiving terminal. Suppose to launch radio wave on different radio frequency,In identical time, same space, there are multiple wireless carriers, and not interfering with each other. In order to extractData, wireless receiver be tuned in a frequency, and abandon all other frequencies.
In typical WIFI system, WIFI system generally includes access point (AccessPoint, AP),Said access point is provided with the antenna for receiving and dispatching electromagnetic wave signal. For example, number of patent application is200520055478.0 Chinese patent a kind of half-wave doublet that is generally used for WAP is disclosedThe antenna of structure, this antenna comprises: first, second the symmetrical portion and the feeder line that relatively arrange in line,Feeder line by be arranged at first, second symmetrical portion one end feeder line access point be electrically connected, described firstSymmetry portion comprise be set up in parallel first, the 3rd Department of Radiation, this second symmetrical portion comprise be set up in parallelTwo, the 4th Department of Radiation, wherein, this first, second Department of Radiation works in the first frequency range, and both one-tenth are alwaysLine is oppositely arranged, and equal in length, is equal to it and uploads 1/4th of defeated electromagnetic wavelength; And it is above-mentionedThree, the 4th Department of Radiation works in the second frequency range, and both are oppositely arranged in line, and equal in length,Be equal to it and upload 1/4th of defeated electromagnetic wavelength. But above-mentioned existing antenna volume is large, noMeet the needs of miniaturization of electronic products.
Summary of the invention
Technical problem to be solved by this invention is, for above-mentioned the deficiencies in the prior art, proposes a kind ofWIFI terminal device based on smart antenna, the antenna of this radio reception device is low to environmental requirement, increasesBenefit is high, can in working frequency range, realize impedance matching preferably, completes expeditiously power conversion, andObtain desirable radiation pattern, this radio reception device overall volume is little.
The technical solution adopted for the present invention to solve the technical problems is, proposes a kind of based on smart antennaWIFI terminal device, it comprises radio reception device main body and is arranged in described radio reception device main bodyAnd carry out with it the antenna of signal transmission, described antenna is smart antenna, if described smart antenna is provided withDry super material antenna element, described super material antenna element comprise medium substrate, metal structure, feeder line andWith reference to ground, described metal structure, feeder line and be all placed on described medium substrate with reference to ground, described feeder line withDescribed metal structure intercouples, and describedly comprises and is positioned at the of relative two surfaces of described medium substrate with reference to groundOne with reference to unit, ground and the second unit, reference ground, and described the first unit, reference ground makes one end shape of described feeder lineBecome microstrip line.
Further, described first be mutually electrically connected with reference to unit, ground with reference to unit, ground and second.
Further, described medium substrate is provided with some plated-through holes, and described first with reference to unit, groundRealize and being electrically connected by described plated-through hole with reference to unit, ground with described second.
Further, described first with reference to ground unit be provided with mutual electrical connection the first metal covering unit andThe second metal covering unit, described the first metal covering unit is relative with an end position of described feeder line, described in makingOne end of feeder line forms described microstrip line; Described second is provided with the 3rd metal covering unit with reference to unit, ground,Described the 3rd metal covering unit is relative with described the second metal covering cell position.
Further, described medium substrate is positioned at described the second metal covering unit and described the 3rd metal covering listPlace of unit offers some plated-through holes, and described the second metal covering unit and described the 3rd metal covering unit are logicalCross described plated-through hole electrical connection.
Further, described the 3rd metal covering unit is positioned at one end of described metal structure, described the 3rd gold medalIt is tabular that genus face unit is long side, and identical with the bearing of trend of described feeder line.
Further, described second be also provided with the 4th metal covering unit, described the 4th gold medal with reference to unit, groundGenus face unit is positioned at a side of described feeder line one end, and is positioned on the bearing of trend of described feeder line.
Further, described medium substrate is positioned at described the first metal covering unit and described the 4th metal covering listPlace of unit offers some plated-through holes, and described the first metal covering unit and described the 4th metal covering unit are logicalCross described plated-through hole electrical connection.
Further, described metal structure be complementary opening resonance loop structure, complementary helix structure,Opening helical ring structure, two opening helical ring structure, complementary folding line structure, complementary opening resonanceThe compound rear structure of the derived structure of ring structure, complementary opening resonance loop structure, complementary opening resonanceAny in structure after ring structure group battle array.
Further, described metal structure is provided with framework and is positioned at two helixes of described framework, instituteState two helixes and be interconnected to form opening helical ring, described opening helical ring is connected with described framework, instituteThe free end of stating helix is panel shape.
In sum, the WIFI terminal device that the present invention is based on smart antenna passes through critically control antennaMicrostrip line described in the topological form of metal structure and rational deployment, just obtain need effective dielectric constant andMagnetic conductivity distributes, and makes antenna can in working frequency range, realize impedance matching preferably, completes expeditiouslyPower conversion, and obtain desirable radiation pattern, gain high, in addition, it is little that described antenna takies volume,Thereby the overall volume of radio reception device is little, low to environmental requirement.
Brief description of the drawings
Fig. 1 is the theory diagram that the present invention is based on the WIFI terminal device of smart antenna;
Fig. 2 is the front view of the super material antenna element of the present invention;
Fig. 3 is the rearview of the super material antenna element of the present invention;
Fig. 4 is the analogous diagram of S parameter of the present invention shown in Fig. 1;
Fig. 5 a is the schematic diagram of complementary opening resonance loop structure;
Fig. 5 b is depicted as the schematic diagram of complementary helix structure;
Fig. 5 c is depicted as the schematic diagram of opening helical ring structure;
Fig. 5 d is depicted as the schematic diagram of two opening helical ring structures;
Fig. 5 e is depicted as the schematic diagram of complementary folding line structure;
Fig. 6 a is the derivative schematic diagram of its geometry of complementary opening resonance loop structure shown in Fig. 5 a;
Fig. 6 b is the derivative schematic diagram of its expansion of the complementary opening resonance loop structure shown in Fig. 5 a;
Fig. 7 a is the structural representation after three complementary opening resonance loop structures shown in Fig. 5 a compound;
Fig. 7 b is that the complementary opening resonance loop structure shown in two Fig. 5 a and Fig. 5 b are depicted as complementary spiral shellThe compound schematic diagram of spin line structure;
Fig. 8 is the structural representation after the complementary opening resonance loop structure group battle array shown in four Fig. 5 a.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the WIFI terminal device that the present invention is based on smart antenna is doneFurther describe:
Super material antenna forms based on artificial electromagnetic material Technology design, and artificial electromagnetic material refers to metalSheet is engraved into the topological metal structure of given shape, and by the topological metal structure setting of described given shapeOn certain dielectric constant and magnetic conductivity base material and the extraordinary electromagnetic material of the equivalence of processing and manufacturing, its performance ginsengNumber depends primarily on the topological metal structure of the given shape of its sub-wavelength. In resonance band, artificial electromagneticMaterial embodies the dispersion characteristics of height conventionally, in other words, and the impedance of antenna, perceptual, equivalent Jie of appearanceElectric constant and magnetic conductivity are along with violent variation can occur frequency. Thereby can adopt artificial electromagnetic material technologyFundamental characteristics to above-mentioned antenna is transformed, and makes medium substrate that metal structure depends on it equivalentlyForm a highly dispersed extraordinary electromagnetic material, thereby realized the new antenna that radiation characteristic is abundant.
Refer to Fig. 1 to Fig. 3, the WIFI terminal device that the present invention is based on smart antenna is WAP(AP), it comprise radio reception device main body 1 and be arranged in described radio reception device main body 1 andCarry out with it the antenna 2 of signal transmission. Described antenna 2 is smart antennas, i.e. adaptive antenna, described inSmart antenna comprises some super material antenna elements 20, D/A conversion unit, self-adaptive digital signal processingUnit and beam-forming network unit. Except super material antenna element 20, radio reception device main body 1And remainder in described smart antenna is prior art, do not repeat them here. Described super material skyLine unit 20 comprises medium substrate 21, metal structure 22, feeder line 23 and reference ground, described medium substrate21 are rectangular tabular, and it can be by high molecular polymer, pottery, ferroelectric material, ferrite material or ferromagnetic materialThe materials such as material are made. In the present embodiment, the material of described medium substrate 21 adopts glass material (FR4)Make, thereby not only cost is low, and can ensures the sky lineman who keeps good in different operating frequenciesMake characteristic.
Described metal structure 22, feeder line 23 and reference ground are all placed on the surface of described medium substrate 21,Described metal structure 22 forms super material with described medium substrate 21, and the performance of described super material depends onDescribed metal structure 22, in resonance band, super material embodies the dispersion characteristics of height, i.e. its resistance conventionallyResist, hold perceptual, equivalent dielectric constant and magnetic conductivity along with violent variation can occur frequency, thus logicalCross the fundamental characteristics that changes described metal structure 22 and medium substrate 21, just make described metal structure 22Form equivalently one according to highly dispersed special type of Lorentz material resonances model with medium substrate 21Electromagnetic material.
Refer to Fig. 1 and Fig. 4 to Fig. 8, described metal structure 22 can be complementary opening resonance loop structure,Complementary helix structure, opening helical ring structure, two opening helical ring structure, complementary bending toe-inThe compound rear knot of the derived structure of structure, complementary opening resonance loop structure, complementary opening resonance loop structureAny in structure after structure, complementary opening resonance loop structure group battle array or similar topological metal structureOr metal etch pattern, the shape of described metal structure 22 has infinite multiple, is not limited to above-mentioned actStructure. In the present embodiment, described metal structure 22 is provided with framework 221 and is positioned at described frameworkTwo helixes 222 in 221, described two helixes 222 are interconnected to form opening helical ring, described in openMouth helical ring is connected with described framework 221, and the free end of described helix 222 is panel shape, describedTabular end can increase the corrugated that is subject to of antenna and amass. The working frequency range of the present embodiment is2.4GHZ～2.49GHZ and 5.72GHZ～5.85GHZ, the gain of above-mentioned this two frequency range can reach respectively3.58dBi and 3.14dBi, as shown in Figure 3, emission ratio of the present invention is less.
Described feeder line 23 is arranged on a side of described metal structure 22, and along described metal structure 22Length direction extends, and itself and described metal structure 22 intercouple, wherein, and one end of described feeder line 23Bending extends to described metal structure 22 end one sides. In addition, can be as required described feeder line 23 withIn space between metal structure 22, embed capacitive electronic component, regulate feedback by embedding capacitive electronic componentSignal coupling between line 23 and metal structure 22, by formula:Known capacitanceSize and square being inversely proportional to of operating frequency, so when the operating frequency needing is during for lower operating frequency,Can realize by suitable embedding capacitive electronic component. The capacitance scope of the capacitive electronic component addingConventionally between 0-2pF, but the capacitance embedding along with the variation of operating frequency of antenna also may exceedThe scope of 0-2pF.
A described side that is positioned at described feeder line 23 with reference to ground, makes the described metal knot of being positioned at of described feeder line 23One end of structure 22 ends forms microstrip line 231. In the present embodiment, described reference ground comprises the first referenceUnit 24, ground and second is with reference to unit 25, ground, and described the first reference unit 24, ground and second is with reference to unit, ground25 lay respectively at relative two surfaces of described medium substrate 21. Described first is provided with reference to unit 24, groundThe first metal covering unit 241 and the second metal covering unit 242 of electrical connection mutually. Described second with reference to groundUnit 25 is positioned at the same side of described medium substrate 21 with described feeder line 23, and is provided with the 3rd metal coveringUnit 251 and the 4th metal covering unit 252.
Described the first metal covering unit 241 is relative with described feeder line 23 positions, makes the position of described feeder line 23One end in described metal structure 22 ends forms described microstrip line 231, described with reference to ground for virtually.Described the second metal covering unit 242 is relative with 251 positions, described the 3rd metal covering unit. Described the 3rd gold medalGenus face unit 251 is positioned at one end of described metal structure 22, and described the 3rd metal covering unit 251 is rectangularPanel shape, and identical with the bearing of trend of described feeder line 23. Described medium substrate 21 is positioned at described secondMetal covering unit 242 and 251 places, described the 3rd metal covering unit offer some plated-through holes 26, instituteState the second metal covering unit 242 and pass through described plated-through hole 26 with described the 3rd metal covering unit 251Electrical connection.
Described the 4th metal covering unit 252 is positioned at a side of described feeder line 23 one end, and is positioned at described feeder lineOn 23 bearing of trend. Described medium substrate 21 is positioned at described the first metal covering unit 241 and describedFour 252 places, metal covering unit offer some plated-through holes 26, described the first metal covering unit 241 withDescribed the 4th metal covering unit 252 is electrically connected by described plated-through hole 26. By the first metal covering listUnit 241 forms described microstrip line 231 with one end of described feeder line 23, thus can reduce external signal toThe signal transmitting on described feeder line 23 disturbs, and improves antenna gain, realizes good impedance matching, savesMaterial, cost is low. Between described the first metal covering unit 241 to the 4th metal covering unit 252, pass through skilfulWonderful position arranges, thereby makes described reference and take less space, just realizes larger area. ThisBy described plated-through hole 26 is set, thereby can further improve the described area with reference to ground outward.
In sum, the WIFI terminal device that the present invention is based on smart antenna passes through critically control antennaMicrostrip line 231 described in the topological form of metal structure 22 and rational deployment, just obtains the equivalent dielectric needingConstant and magnetic conductivity distribute, and make antenna can in working frequency range, realize impedance matching preferably, high efficiencyComplete power conversion, and obtain desirable radiation pattern, gain high, in addition, described antenna takies bodyLong-pending little, thereby the overall volume of radio reception device is little, low to environmental requirement.
By reference to the accompanying drawings preferred embodiment of the present invention is described above, but the present invention does not limit toIn above-mentioned detailed description of the invention, above-mentioned detailed description of the invention is only schematically, instead of restrictionProperty, those of ordinary skill in the art, under enlightenment of the present invention, is not departing from aim of the present invention and powerProfit requires, in the scope situation protected, also can make a lot of forms, for example, described metal structure 22 withBetween described feeder line 23, be provided with connector, described metal structure 22 is electrically connected mutually with described feeder line 23Connect, between described metal structure 22 and described feeder line 23, adopt inductive coupled mode etc., these all belong toWithin protection scope of the present invention.
Claims (10)
1. the WIFI terminal device based on smart antenna, comprises radio reception device main body and installationIn described radio reception device main body and the antenna that carries out with it signal transmission, it is characterized in that: described inAntenna is smart antenna, and described smart antenna is provided with some super material antenna elements, described super material skyLine unit comprises medium substrate, metal structure, feeder line and reference ground, described metal structure, feeder line and ginsengExamine and be all placed on described medium substrate, described feeder line and described metal structure intercouple, described referenceGround comprises and is positioned at described medium substrate relative two lip-deep first with reference to unit, ground and second single with reference to groundUnit, described first makes one end of described feeder line form microstrip line with reference to unit, ground; Described feeder line is arranged on goldBelong to a side of structure, and extend along the length direction of metal structure, one end bending of described feeder line is extendedEnd one side to described metal structure forms microstrip line.
2. the WIFI terminal device based on smart antenna according to claim 1, is characterized in that:Described first is electrically connected with reference to unit, ground mutually with reference to unit, ground and second.
3. the WIFI terminal device based on smart antenna according to claim 2, is characterized in that:Described medium substrate is provided with some plated-through holes, and described first with reference to unit, ground and described the second referenceElectrical connection is realized by described plated-through hole in unit, ground.
4. according to the WIFI terminal device based on smart antenna described in claim 1 or 2 or 3, itsBe characterised in that: described the first unit, reference ground is provided with the first metal covering unit and second of mutual electrical connectionMetal covering unit, described the first metal covering unit is relative with an end position of described feeder line, makes described feeder lineOne end form described microstrip line; Described second is provided with the 3rd metal covering unit with reference to unit, ground, described inThe 3rd metal covering unit is relative with described the second metal covering cell position.
5. the WIFI terminal device based on smart antenna according to claim 4, is characterized in that:Described medium substrate is positioned at described the second metal covering unit and described the 3rd metal covering unit place offers somePlated-through hole, described the second metal covering unit and described the 3rd metal covering unit are logical by described metallizationHole electrical connection.
6. the WIFI terminal device based on smart antenna according to claim 5, is characterized in that:Described the 3rd metal covering unit is positioned at one end of described metal structure, and described the 3rd metal covering unit is rectangularPanel shape, and identical with the bearing of trend of described feeder line.
7. the WIFI terminal device based on smart antenna according to claim 4, is characterized in that:Described second also comprises the 4th metal covering unit with reference to unit, ground, described in described the 4th metal covering unit is positioned atOne side of feeder line one end, and be positioned on the bearing of trend of described feeder line.
8. the WIFI terminal device based on smart antenna according to claim 7, is characterized in that:Described medium substrate is positioned at described the first metal covering unit and described the 4th metal covering unit place offers somePlated-through hole, described the first metal covering unit and described the 4th metal covering unit are logical by described metallizationHole electrical connection.
9. according to the WIFI terminal device based on smart antenna described in claim 1 or 2 or 3, itsBe characterised in that: described metal structure is complementary opening resonance loop structure, complementary helix structure, opensMouth helical ring structure, two opening helical ring structure, complementary folding line structure, complementary split ring resonatorThe compound rear structure of the derived structure of structure, complementary opening resonance loop structure, complementary split ring resonatorAny in structure after structure group battle array.
10. according to the WIFI terminal device based on smart antenna described in claim 1 or 2 or 3, itsBe characterised in that: described metal structure is provided with framework and is positioned at two helixes of described framework, described twoHelix is interconnected to form opening helical ring, and described opening helical ring is connected with described framework, described spiral shellThe free end of spin line is panel shape.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110331072.0A CN103095322B (en) | 2011-10-27 | 2011-10-27 | WIFI terminal device based on smart antenna |
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| CN201110331072.0A CN103095322B (en) | 2011-10-27 | 2011-10-27 | WIFI terminal device based on smart antenna |
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| CN103095322A CN103095322A (en) | 2013-05-08 |
| CN103095322B true CN103095322B (en) | 2016-05-04 |
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| CN110113062A (en) * | 2019-05-28 | 2019-08-09 | 山东华箭科工创新科技有限公司 | A kind of 4G probe smart antenna |
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