CN208014903U - A kind of antenna collected suitable for ambient radio-frequency energy - Google Patents
A kind of antenna collected suitable for ambient radio-frequency energy Download PDFInfo
- Publication number
- CN208014903U CN208014903U CN201820411851.9U CN201820411851U CN208014903U CN 208014903 U CN208014903 U CN 208014903U CN 201820411851 U CN201820411851 U CN 201820411851U CN 208014903 U CN208014903 U CN 208014903U
- Authority
- CN
- China
- Prior art keywords
- dipole
- antenna
- microstrip line
- slab
- metal tape
- 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.)
- Expired - Fee Related
Links
Landscapes
- Waveguide Aerials (AREA)
Abstract
The utility model discloses a kind of antennas collected suitable for ambient radio-frequency energy, belong to technical field of micro communication, including dielectric-slab, upper surface, the lower surface of dielectric-slab are respectively equipped with the first dipole, the second dipole, first dipole, the second dipole are sector structure and the form that is centrosymmetric is arranged, upper surface, the lower surface of dielectric-slab are respectively equipped with microstrip line and metal tape, first dipole is connect by microstrip line with radio antenna interface SMA, and the second dipole is connected with metal tape.In antenna provided by the utility model, dipole is located at the two sides of dielectric-slab, the design being generally aligned in the same plane compared to dipole in antenna traditional structure, the microstrip line of 180 ° of phase differences need not be used, simplify feeding network and impedance matching is more easily adjusted, with high broadband, simple in structure, operability is by force and the advantages of low manufacture cost, with very high engineering practical value.
Description
Technical field
The utility model is related to technical field of micro communication, more particularly to a kind of width collected suitable for ambient radio-frequency energy
Frequency-band antenna.
Background technology
Radio-frequency electromagnetic wave energy is the environmental energy resource of generally existing, is had hardly by environment and time factor
Limitation, can uninterrupted offer energy the features such as.Therefore, ambient radio-frequency energy acquisition technique as a kind of low-power consumption without
The self-powered important means of line real-time performance, has had attracted much attention.
Ambient radio-frequency energy collection system generally comprises rectifier and antenna, and key of the antenna as the system is responsible for
The RF energy spread in acquisition environment.Currently, the defect that the antenna that application radio frequency energy amount is collected is primarily present is：When
Its structure is generally stereochemical structure, and the radiating surface and microstrip line of antenna are located at orthogonal two planes of dielectric-slab, account for
It is larger with space.Second is that antenna generally opens up the slot of various complexity in radiation patch, by changing radiation patch surface circuit
Flow direction generate more resonance points to achieve the purpose that increase bandwidth.But make antenna structure particularly complicated, application process is drawn
Enter excessive variable, operability is not strong, and increases bandwidth product unobvious.
Utility model content
The purpose of this utility model is to provide antennas that is a kind of simple in structure and being collected suitable for ambient radio-frequency energy.
In order to achieve the above object, the utility model is using a kind of antenna collected suitable for ambient radio-frequency energy, the antenna
Including dielectric-slab, upper surface, the lower surface of dielectric-slab are respectively equipped with the first dipole, the second dipole, the first dipole, second
Dipole is that sector structure and the form that is centrosymmetric are arranged, upper surface, the lower surface of dielectric-slab be respectively equipped with microstrip line and
Metal tape, the first dipole are connect by microstrip line with radio antenna interface SMA, and the second dipole is connected with metal tape.
Preferably, first dipole, the second dipole include that multiple sons are fan-shaped, the multiple fan-shaped interval cloth of son
It sets and the center of circle of each son sector is intersected.
Preferably, the multiple son is fan-shaped identical, and interval angles are identical between adjacent son sector.
Preferably, the microstrip line and the metal tape are that the height of isosceles trapezoid and isosceles trapezoid is identical.
Preferably, the microstrip line is less than isosceles at a distance from the intersection point to isosceles trapezoid microstrip line bottom edge of the first dipole
The height of trapezoidal microstrip line；The metal tape is less than isosceles at a distance from the intersection point to isosceles trapezoid metal tape bottom edge of the second dipole
The height of trapezoidal metal tape.
Preferably, the dielectric-slab uses suitable for frequency microwave frequency range and has the insulating materials system of relative dielectric constant
It is standby.
Compared with prior art, there are following technique effects for the utility model：In antenna provided by the utility model, dipole
Son is located at the two sides of dielectric-slab, compared to the design that dipole in antenna traditional structure is generally aligned in the same plane, need not adopt
With the microstrip line of 180 ° of phase differences, simplifies feeding network and impedance matching is more easily adjusted.Moreover, used in this programme
Dipole is sector structure, and in dipole antenna, sector structure is easiest to obtain wider frequency band, and is opened by adjusting sector
The size of mouth can directly adjust bandwidth, and operability is strong.
Description of the drawings
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail：
Fig. 1 is a kind of structural schematic diagram for the antenna collected suitable for ambient radio-frequency energy；
Fig. 2 is the surface structure schematic diagram of the utility model antenna；
Fig. 3 is the lower surface configuration schematic diagram of the utility model antenna；
Fig. 4 is the utility model antenna-reflected Can Shuo |S11|Schematic diagram；
Fig. 5 is the faces E and H side gains directional diagram at the utility model center of antenna frequency.
Specific implementation mode
In order to illustrate further the feature of the utility model, please refer to detailed description below in connection with the utility model with
Attached drawing.Institute's attached drawing is only for reference and purposes of discussion, is not used for limiting the scope of protection of the utility model.
Refering to fig. 1 to shown in Fig. 3, present embodiment discloses a kind of antenna collected suitable for ambient radio-frequency energy, the days
Line includes dielectric-slab 10, and upper surface, the lower surface of dielectric-slab 10 are respectively equipped with the first dipole 20, the second dipole 30, and first
Dipole 20, the second dipole 30 are sector structure and the form that is centrosymmetric is arranged, upper surface, the lower surface of dielectric-slab 10
It is respectively equipped with microstrip line 40 and metal tape 50, the first dipole 20 is connect by microstrip line 40 with radio antenna interface SMA, the
Two dipoles 30 are connected with metal tape 50.Wherein, the first dipole 20 and the second dipole 30 are identical fan-shaped knot
Structure, sector fixed point are located at 10 center of dielectric-slab, and sector open gradually increases outward from 10 center of dielectric-slab.Sector structure
Vertex is connect by microstrip line 40, metal tape 50 with feed structure, and feed structure is solderable in 10 sidewall locations of dielectric-slab, antenna
Input impedance be 50 Ω.
In practical applications, can be changed by adjusting fan-shaped radius and its sector open size of sector structure dipole
Band bandwidth, the size by changing microstrip line 40 can very easily adjust impedance matching.
As further preferred scheme, the first dipole 20, the second dipole 30 include multiple son sectors 60, described
Multiple fan-shaped 60 arranged for interval of son and each sub fan-shaped 60 center of circle intersection.It is big fan-shaped even using multiple small fan-shaped compositions in this programme
Extremely sub structure, compared to one big fan-shaped structure, multiple small fan-shaped big fan-shaped dipoles of composition have better direction
Property, be conducive to the performance for improving radio frequency environment collection of energy antenna.
As further preferred scheme, multiple son sectors 60 are identical, and interval angles are identical between adjacent son sector 60.
As further preferred scheme, the microstrip line 40 and the metal tape 50 are isosceles trapezoid and isosceles trapezoid
Height it is identical.
As further preferred scheme, the intersection point of microstrip line 40 and the first dipole 20 to 40 bottom of isosceles trapezoid microstrip line
The distance on side is less than the height of isosceles trapezoid microstrip line 40；The intersection point of the metal tape 50 and the second dipole 30 is golden to isosceles trapezoid
The distance for belonging to 50 bottom edge of band is less than the height of isosceles trapezoid metal tape 50.Microstrip line and metal tape are designed as isosceles ladder in this programme
Shape shape, this grading structure can preferably realize the impedance matching between feed port and dipole radiation patch.
As further preferred scheme, dielectric-slab is used suitable for frequency microwave frequency range and with relative dielectric constant
It is prepared by insulating materials.
Specifically, refering to shown in Fig. 2 to Fig. 3, the first dipole 20, the second dipole 30 in the present embodiment be all made of by
The big sector structure that three son sectors 60 are constituted, the radius per height sector 60 are 41mm, and central angle is 40 °, this three son fans
Intersect and differ 5 ° between adjacent son sector 60 in the vertex of shape 60.The angle for being located at intermediate son sector 60 in three son sectors 60 is flat
Separated time is respectively at the height of microstrip line 40 or high perpendicular, vertical range of the dipole son vertex to 10 bottom end of dielectric-slab of metal tape 50
For H=56.4mm, upper bottom W1=2.9mm of waist trapezoidal shape microstrip line 40, upper bottom W2=0.3mm, high H1=67.6mm.Isosceles trapezoid
Upper bottom W3=0.3mm of shaped metal band 50, go to the bottom W4=8mm, high H1=67.6mm.Dielectric-slab 10 uses thickness for 1.575mm's
Prepared by 5880 planks of Duriod Rogers, relative dielectric constant εr=2.2, loss angle tangent tan (δ)=0.0009.Medium
The width of plate 10 is W=92mm, and length is L=97mm.
The antenna in the present embodiment is emulated using AnsoftHFSS simulation softwares, simulation result such as Fig. 4 to Fig. 5 institutes
Show.Simulation result shows that the performance characteristics of high broadband and omnidirectional radiation may be implemented in the broad-band antenna, can be effectively to 1.6-
2.6GHz（Cover the frequency ranges such as GSM-1800/4G, 3G/UMTS-2100, WLAN）Broadband RF energy be collected.And
Antenna in the present embodiment has the advantages that high broadband, simple in structure, operability be strong and low manufacture cost, has very high work
Journey practical value.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (6)
1. a kind of antenna collected suitable for ambient radio-frequency energy, it is characterised in that：Including dielectric-slab, the upper surface of dielectric-slab,
Lower surface is respectively equipped with the first dipole, the second dipole, and the first dipole, the second dipole are sector structure and are in center
Symmetric form arranges that upper surface, the lower surface of dielectric-slab are respectively equipped with microstrip line and metal tape, and the first dipole passes through microstrip line
It is connect with radio antenna interface SMA, the second dipole is connected with metal tape.
2. the antenna collected as described in claim 1 suitable for ambient radio-frequency energy, it is characterised in that：First dipole
Son, the second dipole include multiple sub fan-shaped, the center of circle intersection of the multiple fan-shaped arranged for interval of son and each son sector.
3. the antenna collected as claimed in claim 2 suitable for ambient radio-frequency energy, it is characterised in that：The multiple son is fan-shaped
It is identical, and interval angles are identical between adjacent son sector.
4. the antenna collected as claimed in claim 2 suitable for ambient radio-frequency energy, it is characterised in that：The microstrip line and institute
It is isosceles trapezoid to state metal tape.
5. the antenna collected as claimed in claim 4 suitable for ambient radio-frequency energy, it is characterised in that：The microstrip line and
The intersection point of one dipole is less than the height of isosceles trapezoid microstrip line to the distance on isosceles trapezoid microstrip line bottom edge；The metal tape and
The intersection point of two dipoles is less than the height of isosceles trapezoid metal tape to the distance on isosceles trapezoid metal tape bottom edge.
6. the antenna as described in any one in claim 1-5 collected suitable for ambient radio-frequency energy, it is characterised in that：It is given an account of
Scutum is used suitable for frequency microwave frequency range and prepared by the insulating materials with relative dielectric constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820411851.9U CN208014903U (en) | 2018-03-26 | 2018-03-26 | A kind of antenna collected suitable for ambient radio-frequency energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820411851.9U CN208014903U (en) | 2018-03-26 | 2018-03-26 | A kind of antenna collected suitable for ambient radio-frequency energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208014903U true CN208014903U (en) | 2018-10-26 |
Family
ID=63890654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820411851.9U Expired - Fee Related CN208014903U (en) | 2018-03-26 | 2018-03-26 | A kind of antenna collected suitable for ambient radio-frequency energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208014903U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109860994A (en) * | 2019-01-21 | 2019-06-07 | 中国人民解放军陆军工程大学 | Planar microstrip patch antenna with broadband end-fire circular polarization characteristic |
| CN110768000A (en) * | 2019-09-27 | 2020-02-07 | 宁波大学 | Ultrahigh frequency RFID (radio frequency identification) tag antenna for wirelessly measuring dielectric constant |
| WO2021077718A1 (en) * | 2019-10-22 | 2021-04-29 | 华为技术有限公司 | Antenna assembly and wireless device |
| CN112886708A (en) * | 2021-01-15 | 2021-06-01 | 悉拓(上海)安全技术有限公司 | Radio frequency energy acquisition wireless monitoring equipment and use method thereof |
-
2018
- 2018-03-26 CN CN201820411851.9U patent/CN208014903U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109860994A (en) * | 2019-01-21 | 2019-06-07 | 中国人民解放军陆军工程大学 | Planar microstrip patch antenna with broadband end-fire circular polarization characteristic |
| CN109860994B (en) * | 2019-01-21 | 2020-10-20 | 中国人民解放军陆军工程大学 | Planar microstrip patch antenna with broadband end-fire circular polarization characteristic |
| CN110768000A (en) * | 2019-09-27 | 2020-02-07 | 宁波大学 | Ultrahigh frequency RFID (radio frequency identification) tag antenna for wirelessly measuring dielectric constant |
| WO2021077718A1 (en) * | 2019-10-22 | 2021-04-29 | 华为技术有限公司 | Antenna assembly and wireless device |
| CN112886708A (en) * | 2021-01-15 | 2021-06-01 | 悉拓(上海)安全技术有限公司 | Radio frequency energy acquisition wireless monitoring equipment and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208014903U (en) | A kind of antenna collected suitable for ambient radio-frequency energy | |
| Chen et al. | A novel ultra-wideband bow-tie slot antenna in wireless communication systems | |
| CN103840254B (en) | Ultra-broadband dual-frequency band cell-site antenna | |
| CN205811043U (en) | A kind of M shape three band Planer printed monopole antenna | |
| CN106329107B (en) | A kind of wide bandwidth angle omnidirectional circular-polarized antenna | |
| CN204464453U (en) | The annular umbrella-like ultra-wideband antenna of coplanar wave guide feedback | |
| CN208690490U (en) | A kind of circular polarized antenna slotted over the ground based on co-planar waveguide | |
| CN106159436A (en) | A kind of miniaturization dual polarized antenna being applicable to WLAN and preparation method thereof | |
| CN207572523U (en) | A kind of cupuliform super wide band plane single pole sub antenna with ladder open-circuit structure floor | |
| CN105048077B (en) | Double triangle groove embeds co-planar waveguide monopole and enters to have more antenna more | |
| CN107275765A (en) | It is a kind of from the broadband circle polarized cross dipole antenna of phase shift | |
| CN107086361B (en) | A kind of high-gain is to opening up Vivaldi antenna | |
| CN109742540A (en) | A kind of miniaturization high-isolation multi-source multibeam antenna | |
| CN206401522U (en) | A kind of new three-frequency antenna based on racemosus structure | |
| CN110098471B (en) | Broadband dual-polarized base station antenna based on hybrid balun | |
| CN108461912B (en) | Terahertz microstrip antenna | |
| CN207542393U (en) | A kind of dentation ultra-wideband antenna | |
| CN106159435B (en) | Ultra-wideband fractal antenna | |
| Hakanoglu et al. | A square microstrip patch antenna with enhanced return loss through defected ground plane for 5G wireless networks | |
| CN106252855B (en) | A kind of the fluting broadband UC-EBG structure and its design method of right-angled intersection broken line type | |
| CN106711611A (en) | Micro ultra wide band omnidirectional fractal paster antenna | |
| Zhang et al. | Design of a planar monopole multiband antenna with U-and L-shaped slots | |
| CN207542390U (en) | A kind of three Mould Breadths band double-circle polarization microstrip antenna for being used for U wave band and S-band | |
| CN207559073U (en) | A kind of wide scan angle S-band double-circle polarization microstrip antenna and its array for phased array | |
| Li et al. | An enhanced frequency and radiation pattern reconfigurable antenna for portable device applications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181026 Termination date: 20190326 |