CN206480759U - Low section multi-frequency plane spiral slit antenna for collection of energy - Google Patents
Low section multi-frequency plane spiral slit antenna for collection of energy Download PDFInfo
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- CN206480759U CN206480759U CN201720216274.3U CN201720216274U CN206480759U CN 206480759 U CN206480759 U CN 206480759U CN 201720216274 U CN201720216274 U CN 201720216274U CN 206480759 U CN206480759 U CN 206480759U
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- antenna
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Abstract
The utility model discloses a kind of low section multi-frequency plane spiral slit antenna for collection of energy, the technical problem of solution：When being used for collection of energy for the existing antenna referred in background technology, because around radio-frequency electromagnetic wave energy is faint, the low technological deficiency of existing multifrequency antenna gain.The technical scheme taken, a kind of low section multi-frequency plane spiral slit antenna for collection of energy, including single-layer medium substrate, are arranged on the radiating element of single-layer medium upper surface of base plate, are arranged on the feed Balun of single-layer medium base lower surface.The beneficial effects of the utility model are：This is used for the low section multi-frequency plane spiral slit antenna of collection of energy, the antenna has the advantages that low section, lightweight, high-gain, is easy to integrated with planar circuit, it can be used for while collecting mobile communication 2G/3G/4G signals and wireless lan signal, the signal of different frequency need not be received using multiple antennas, system cost is reduced.
Description
Technical field
The utility model is related to snail slot antenna, especially a kind of low section multi-frequency plane for collection of energy
Spiral slit antenna.
Background technology
With the increase and industrialized development of population, modern society is faced with increasingly severe energy crisis.Therefore,
Energy in collection surrounding environment becomes study hotspot all the time.Energy source in environment include solar energy, wind energy with
And radio-frequency electromagnetic wave energy etc..Due to the development of the communication technology, radio frequency electromagnetic is largely full of around people, in mobile communication
With WLAN overlay area exist simultaneously 2G 3G 4G the various criterion such as WIFI signal, radio frequency electromagnetic compared to
The sun, wind etc. are not influenceed by environment and time factor, can constantly provide energy, are a kind of energy sources of stabilization.Radio frequency
One of most important part is the analysis design of RECTIFYING ANTENNA in electromagnetic wave energy collection technique, is also domestic and international associated specialist
The focus of person's concern.RECTIFYING ANTENNA technology is that reception antenna and rectification circuit are combined, are converted to RF energy directly by one kind
The technology of stream energy.Multifrequency reception antenna is needed in RECTIFYING ANTENNA to receive the signal from multiple communications bands.
At present, for can receive simultaneously 2G 3G 4G the multifrequency antenna of WIFI signal study, it is most of be used for it is mobile eventually
End, antenna gain is smaller.For example, Application No. CN201610127824.4 patent propose it is a kind of can without lumped-parameter element
For the multiband aerial of mobile terminal, all standing of common mobile communication signal low-frequency range and high band is realized, in low frequency
Section (LTE700, GSM850, GSM900), the actual measurement gain of example antenna is the 3.73dBi of -0.2dBi one；High band (DCS,
PCS, UMTS, LTE2300 and LTE2500), the actual measurement gain of example antenna is the 3.91dBi of 1.98dBi mono-；Application No.
CN201410462587.8 patent proposes a kind of 2G, 3G, 4G and integrates multifrequency antenna and wireless communication terminal, by rationally setting
That counts antenna walks wire shaped it is achieved thereby that 3 frequency ranges of 2G 3G 4G independences are synthesized into 2 frequency ranges and a day is incorporated into
In line, antenna gain is up to 2.5dBi.However, when antenna is used for collection of energy, because around radio-frequency electromagnetic wave energy is micro-
It is weak, it is necessary to the reception antenna of high-gain.
The content of the invention
Technical problem to be solved in the utility model is to be received for the existing antenna referred in background technology for energy
During collection, because around radio-frequency electromagnetic wave energy is faint, the low technological deficiency of existing multifrequency antenna gain.
The purpose of this utility model is to provide a kind of while receiving the gain of mobile communication signal and wireless lan signal
High multifrequency reception antenna.
To solve the above problems, technical solution adopted in the utility model is：A kind of low section for collection of energy
Multi-frequency plane spiral slit antenna, including single-layer medium substrate, are arranged on the radiating element of single-layer medium upper surface of base plate, set
In the feed Balun of single-layer medium base lower surface；
Metal throuth hole is set on single-layer medium substrate；
Radiating element is the rosette for being etched with two equiangular spiral metal arms and forming plane equiangular spiral gap, gold
The central area of category disk is the initiating terminal of two equiangular spiral metal arms, and the initiating terminal of two equiangular spiral metal arms is in gold
The central area for belonging to disk disconnects；Left substrate edge planes bonding jumper is symmetrical arranged in the left and right ends edge of rosette
With right substrate edge planes bonding jumper, left substrate edge planes bonding jumper and right substrate edge planes bonding jumper are all connected with isogonism spiral shell
The two ends of the end of rotation metal arm, left substrate edge planes bonding jumper and right substrate edge planes bonding jumper inwardly set curved
Hook；
Feed Balun is helical metal planar band, and one end of helical metal planar band is in single-layer medium substrate
Central area is initiating terminal, and initiating terminal passes through one of them in the metal throuth hole and radiating element on single-layer medium substrate etc.
Angle spiral metal arm connection；The other end of helical metal planar band is end, and end is at antenna feed.
Technical solutions of the utility model, the upper surface radiating element of single-layer medium substrate plays external radiated electromagnetic wave and made
With the left substrate edge planes bonding jumper and right substrate edge planes bonding jumper of profile image-tape crotch shoulder pole are conducive to provide low frequency
Section resonance, raising antenna gain.The lower surface spiral shape feed Balun and antenna surface of single-layer medium substrate are integrated, play resistance
Anti- matching and feed effect.During antenna measurement of the present utility model, it is not necessary to add as conventional planar helical antenna extra
Balun.By using such antenna structure, the multifrequency high-gain omnidirectional radiation performance of antenna is realized.
Improvement to technical solutions of the utility model, the end of two equiangular spiral metal arms is etched with oval gap.
Oval gap is used for adjusting the axle ratio of antenna, allows antenna circular polarization radiation.
Improvement to technical solutions of the utility model, radius >=single-layer medium substrate width of rosette two/
One.
Improvement to technical solutions of the utility model, the width of the full-size ＜ single-layer medium substrates of rosette.
Improvement to technical solutions of the utility model, left substrate edge planes bonding jumper and right substrate edge planes bonding jumper
Maximum length 0.2-0.5 times of correspondence vacuum medium wavelength when being antenna lowest operating frequency.Technical solutions of the utility model
In the length of left substrate edge planes bonding jumper and right substrate edge planes bonding jumper of profile image-tape crotch shoulder pole can root
Voluntarily adjustment length, left substrate edge planes bonding jumper and right substrate edge are needed according to the design of low band resonance Frequency point size
The length of plane metal strip can be with inconsistent.
Improvement to technical solutions of the utility model, plane equiangular spiral gap area is less than rosette area.It is too small
Antenna can be allowed to be unable to Net long wave radiation.
The beneficial effects of the utility model are：
1st, this be used for collection of energy low section multi-frequency plane spiral slit antenna, the antenna have low section, it is lightweight,
High-gain, be easy to planar circuit it is integrated the advantages of, can be used for while collecting mobile communication 2G/3G/4G signals and wireless local
Net signal, it is not necessary to the signal of different frequency is received using multiple antennas, system cost is reduced.
2nd, this is used for the low section multi-frequency plane spiral slit antenna of collection of energy, is different from existing common mobile terminal many
Band antenna, flat helical antenna technology is further improved, and passes through the rosette by plane equiangular spiral gap is etched with
Bonding jumper with two profiles such as with crotch shoulder pole is connected, then using integrated helical metal feed strip, realize can be simultaneously
Receive 2G 3G 4G WIFI signal multifrequency high-gain reception antenna, perpendicular to antenna substrate plane internal antenna radiation connect
It is bordering on omni-directional, the high and low section of antenna gain.
Brief description of the drawings
Fig. 1 is provided in the schematic diagram of the radiating element of single-layer medium upper surface of base plate.
Fig. 2 is zoomed-in view at A in Fig. 1.
Fig. 3 is provided in the schematic diagram of the feed Balun of single-layer medium base lower surface.
Fig. 4 is zoomed-in view at B in Fig. 3.
Fig. 5 is antenna reflection coefficient S11 of the present utility model with frequency variation diagram.
Fig. 6 is antenna gain of the present utility model with frequency variation diagram.
Fig. 7 is antenna Phi=0 of the present utility model plane vertical plane radiation patterns.
Fig. 8 is antenna Phi=90 of the present utility model plane vertical plane radiation patterns.
Wherein：1st, rosette, 2, left substrate edge planes bonding jumper, 3, right substrate edge planes bonding jumper, 4, spiral
Shape metal flat band, 5, metal throuth hole, 6, at antenna feed.
Embodiment
Technical solutions of the utility model are described in detail below, but protection domain of the present utility model is not limited to
The embodiment.
To make content of the present utility model more obvious understandable, below in conjunction with accompanying drawing 1- Fig. 8 and embodiment do into
The description of one step.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit the utility model.
As shown in figure 1, it is used for the low section multi-frequency plane spiral slit antenna of collection of energy in the present embodiment, including individual layer
Medium substrate, is arranged on the radiating element of single-layer medium upper surface of base plate, is arranged on the feed bar of single-layer medium base lower surface
Human relations.
Metal throuth hole 5 is set on single-layer medium substrate.
Radiating element is the rosette 1 for being etched with two equiangular spiral metal arms and forming plane equiangular spiral gap,
The central area of rosette 1 is the initiating terminal of two equiangular spiral metal arms, the initiating terminal of two equiangular spiral metal arms
Disconnected in the central area of rosette；Left substrate edge planes gold is symmetrical arranged in the left and right ends edge of rosette
Belong to bar 2 and right substrate edge planes bonding jumper 3, left substrate edge planes bonding jumper and right substrate edge planes bonding jumper are all connected with
The two ends of the end of equiangular spiral metal arm, left substrate edge planes bonding jumper and right substrate edge planes bonding jumper are inwardly set
Put crotch.As illustrated in fig. 1 and 2.
Feed Balun is helical metal planar band 4, and one end of helical metal planar band is in single-layer medium substrate
Central area be initiating terminal, initiating terminal passes through wherein one in the metal throuth hole 5 on single-layer medium substrate and radiating element
Individual equiangular spiral metal arm connection；The other end of helical metal planar band is end, and end is 6 at antenna feed.Such as Fig. 3 and
Shown in 4.
This is used for the low section multi-frequency plane spiral slit antenna of collection of energy, and plane equiangular spiral gap area is less than gold
Belong to disk area./ 2nd of the radius of rosette >=single-layer medium substrate width.The full-size ＜ of rosette is mono-
The width of layer medium substrate.Antenna of the present utility model, the snail gap size of upper surface radiating element etching is no more than
Rosette 1；, can by adjusting the length with the left substrate edge planes bonding jumper 2 of crotch Yu right substrate edge planes bonding jumper 3
To change frequency and the impedance matching of low-frequency range, left substrate edge planes bonding jumper 2 and right substrate edge planes bonding jumper 3 are most
0.2-0.5 times of correspondence vacuum medium wavelength when long length is antenna lowest operating frequency；Respectively in two isogonism snails
The end of metal arm is etched with oval gap, can allow antenna circular polarization radiation for adjusting the axle ratio of antenna.
During antenna measurement of the present utility model, it is not necessary to add extra balun, antenna as conventional planar helical antenna
Feeding classification is coaxial feed mode, and coaxial cable or SMA inner wires are welded under single-layer medium substrate through metal throuth hole 5
6 at the end antenna feed of superficial-helical metal flat band 4, coaxial cable or SMA outer conductors are welded to single-layer medium substrate
Upper surface radiating element the right substrate edge planes bonding jumper 3 with crotch.
Each dimensional parameters of the present utility model influence each other restriction, the performance of the arrangement of antenna and structure design to antenna
Influence is larger, according to the limitation of performance requirement and mounting condition, it is necessary to the performance parameter of antenna, such as direction in practical application
Figure, directivity factor, efficiency, input impedance, polarization and frequency band etc. carry out comprehensive study, and the utility model passes through the chi to antenna
Balance in terms of very little, performance, Structural assignments, has finally given following preferably structural implementations, by following specific implementations
The performance parameter of example is visible, and structure of the present utility model has significant progressive effect.
When antenna substrate uses thickness for 1.5mm wide-dielectric constant polytetrafluoroethylglass glass cloth coated copper base, this substrate
Relative dielectric constant ε r all be 2.2, losstangenttanδ is 0.001, and preferred scheme of the present utility model is：Antenna is square
The total length L 1 and overall width W1 of substrate are respectively 96mm and 96mm, and the length of the bonding jumper 2 and 3 of aerial band crotch shoulder pole is
96mm, width W2 and W3 are respectively 6.8mm and 8.5mm；The eccentricity in 2 oval gaps is 0.86, and major semiaxis is 2mm；Substrate
A diameter of 0.36mm of interior metal throuth hole 4；The radius R0 of snail gap outer most edge is equal to 41mm, the radius of rosette 1
R1Equal to 45mm.
Fig. 5 gives the reflectance factor S11 of the low section multi-frequency plane spiral slit antenna for being used for collection of energy with frequency
The simulation curve and experiment curv of rate change, measurement result and simulation result are substantially close to test result explanation works as corresponding S11
During less than -10dB, the multiband aerial can be operated in simultaneously 0.863~0.953GHz, 1.435~2.175GHz and 2.273~
2.465GHz frequency range.The common mobile communication signal and WLAN that the frequency range can be in for receiving working frequency are believed
Number, such as the FDD-LTE signals of China Telecom, GSM900 signals, GSM1800 signals, Wifi wireless lan signals, WiMAX without
Line local area network signal, 4G signals of China Telecom/movement/UNICOM etc..
Fig. 6 gives the gain of the antenna with frequency variation diagram, and the maximum gain of the visible antenna is in observation as shown in the figure
Frequency range in can reach 7.35dBi, 0.863~0.953GHz frequency ranges gain between 7.35~5.8dBi,
The gain of 1.45~2.175GHz frequency ranges between 4.0~5.6dBi, 2.273~2.465GHz frequency ranges gain 4.0~
5.28dBi between.Meanwhile, the bonding jumper 2 by the profile of the left and right ends edge of the antenna metal disk 1 such as with crotch shoulder pole
Remove with 3, simulation result shows that gain variation, reflectance factor S11 deteriorate, it is seen that the antenna provided by using the utility model
Technology, improves the radiance of antenna.
As shown in Figure 7,8, be this be used for collection of energy low section multi-frequency plane spiral slit antenna with antenna substrate
(during using spherical coordinates, Phi=0 plane and Phi=90's is flat for antenna pattern in 2 vertical orthogonal planes of plane
Face), it is seen that antenna is approached in each frequency band resonance point in the Phi=90 vertical with antenna substrate plane plane vertical plane to be had
Omnidirectional radiation characteristic.Antenna is linearly polarized radiation in 0.863~0.953GHz, 1.435~2.175GHz and 2.273~
2.465GHz band antenna is approximately circular polarization radiation.
Be not specifically noted in all the utility model specifications be prior art or can by existing technology
Realize, it should be appreciated that for those of ordinary skills, can according to the above description be improved or converted, and
All these modifications and variations should all belong to the protection domain of the utility model appended claims.
Claims (6)
1. a kind of low section multi-frequency plane spiral slit antenna for collection of energy, it is characterised in that：Including single-layer medium base
Plate, is arranged on the radiating element of single-layer medium upper surface of base plate, is arranged on the feed Balun of single-layer medium base lower surface；
Metal throuth hole is set on single-layer medium substrate；
Radiating element is the rosette for being etched with two equiangular spiral metal arms and forming plane equiangular spiral gap, round metal
The central area of disk is the initiating terminal of two equiangular spiral metal arms, and the initiating terminal of two equiangular spiral metal arms is in round metal
The central area of disk disconnects；Left substrate edge planes bonding jumper and the right side are symmetrical arranged in the left and right ends edge of rosette
Substrate edge planes bonding jumper, left substrate edge planes bonding jumper and right substrate edge planes bonding jumper are all connected with equiangular spiral gold
The two ends of the end of category arm, left substrate edge planes bonding jumper and right substrate edge planes bonding jumper inwardly set crotch；
Feed Balun is helical metal planar band, and one end of helical metal planar band is at the center in single-layer medium substrate
It is initiating terminal at region, initiating terminal passes through one of isogonism spiral shell in the metal throuth hole and radiating element on single-layer medium substrate
Revolve metal arm connection；The other end of helical metal planar band is end, and end is at antenna feed.
2. using the low section multi-frequency plane spiral slit antenna for collection of energy described in claim 1, it is characterised in that
The end of two equiangular spiral metal arms is etched with oval gap.
3. using the low section multi-frequency plane spiral slit antenna for collection of energy described in claim 1, it is characterised in that
/ 2nd of the radius of rosette >=single-layer medium substrate width.
4. using the low section multi-frequency plane spiral slit antenna for collection of energy described in claim 1, it is characterised in that
The width of the full-size ＜ single-layer medium substrates of rosette.
5. using the low section multi-frequency plane spiral slit antenna for collection of energy described in claim 1, it is characterised in that
When the maximum length of left substrate edge planes bonding jumper and right substrate edge planes bonding jumper is antenna lowest operating frequency pair
Answer vacuum medium wavelength 0.2-0.5 times.
6. using the low section multi-frequency plane spiral slit antenna for collection of energy described in claim 1, it is characterised in that
Plane equiangular spiral gap area is less than rosette area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720216274.3U CN206480759U (en) | 2017-03-07 | 2017-03-07 | Low section multi-frequency plane spiral slit antenna for collection of energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720216274.3U CN206480759U (en) | 2017-03-07 | 2017-03-07 | Low section multi-frequency plane spiral slit antenna for collection of energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206480759U true CN206480759U (en) | 2017-09-08 |
Family
ID=59747311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720216274.3U Withdrawn - After Issue CN206480759U (en) | 2017-03-07 | 2017-03-07 | Low section multi-frequency plane spiral slit antenna for collection of energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206480759U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106848548A (en) * | 2017-03-07 | 2017-06-13 | 南京信息职业技术学院 | For the low section multi-frequency plane spiral slit antenna of collection of energy |
| CN109921168A (en) * | 2019-02-16 | 2019-06-21 | 江苏中科智睿物联网科技有限公司 | A kind of flare shape super wide band plane single pole sub antenna |
| CN110165394A (en) * | 2019-04-10 | 2019-08-23 | 南京信息职业技术学院 | A kind of dual-port double layer planar spiral slit antenna |
-
2017
- 2017-03-07 CN CN201720216274.3U patent/CN206480759U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106848548A (en) * | 2017-03-07 | 2017-06-13 | 南京信息职业技术学院 | For the low section multi-frequency plane spiral slit antenna of collection of energy |
| CN106848548B (en) * | 2017-03-07 | 2023-05-16 | 南京信息职业技术学院 | Low profile multi-frequency planar helical slot antenna for energy harvesting |
| CN109921168A (en) * | 2019-02-16 | 2019-06-21 | 江苏中科智睿物联网科技有限公司 | A kind of flare shape super wide band plane single pole sub antenna |
| CN110165394A (en) * | 2019-04-10 | 2019-08-23 | 南京信息职业技术学院 | A kind of dual-port double layer planar spiral slit antenna |
| CN110165394B (en) * | 2019-04-10 | 2020-07-24 | 南京信息职业技术学院 | Double-port double-layer planar spiral slot antenna |
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| AV01 | Patent right actively abandoned | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170908 Effective date of abandoning: 20230516 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170908 Effective date of abandoning: 20230516 |