CN106898870B - Ultra wide band differential antennae with trap characteristic - Google Patents
Ultra wide band differential antennae with trap characteristic Download PDFInfo
- Publication number
- CN106898870B CN106898870B CN201710047891.XA CN201710047891A CN106898870B CN 106898870 B CN106898870 B CN 106898870B CN 201710047891 A CN201710047891 A CN 201710047891A CN 106898870 B CN106898870 B CN 106898870B
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- CN
- China
- Prior art keywords
- wide band
- ultra wide
- trap characteristic
- band differential
- shaped metal
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
Abstract
The present invention provides a kind of ultra wide band differential antennaes with trap characteristic, including medium substrate, the feed layer positioned at the earth plate of medium substrate lower surface and positioned at medium substrate upper surface；The feed layer includes two radiating elements being symmetrical set；The radiating element includes microstrip feed line and radiation patch；The microstrip feed line is connect with radiation patch；The earth plate includes positioned at earth plate edge and radiosymmetric four corner cuts, the round gap among earth plate and two C-shaped metal tapes being symmetrical set in round gap；The sides aligned parallel of the C-shaped metal tape and round gap, and have gap between the C-shaped metal tape and round slot edge.The ultra wide band differential antennae with trap characteristic of the present invention realizes miniaturization, realizes good trap function, and antenna is optimized and improved in the radiation characteristic of high band, antenna is also improved in the gain of high band.
Description
Technical field
The present invention relates to technical field of micro communication more particularly to a kind of ultra wide band differential antennaes with trap characteristic.
Background technology
Since Federal Communications Commission in 2002 announces 3.1~10.6GHz frequency ranges applied to commercial field, there is height
Data transmission rate, low cost, low-power consumption, strong antijamming capability ultra wide band (UWB) communication system rapidly developed, ultra wide band
Antenna becomes the research hotspot of international scholar in recent years.However, in the coverage area of ultra wide band, some frequency ranges are occupied,
Such as WiMAX (3.4~3.6GHz) and WLAN (5.15~5.35GHz) and (5.725~5.825GHz).Therefore, ultra wide band
Interference may be generated when Antenna Operation between existing communication network.
It can avoid generating unnecessary interference between ultra-wideband antenna and already present communication network therefore, it is necessary to a kind of
Ultra wide band differential antennae with trap characteristic.
Invention content
The purpose of the present invention is to provide a kind of ultra wide band differential antennaes with trap characteristic, it is intended to solve the prior art
The technical issues of interference being generated when middle ultra-wideband antenna work between existing communication network.
To achieve the above object, the present invention provides a kind of ultra wide band differential antennaes with trap characteristic, including medium
Substrate, the feed layer positioned at the earth plate of medium substrate lower surface and positioned at medium substrate upper surface；The feed layer includes
Two radiating elements being symmetrical set；The radiating element includes microstrip feed line and radiation patch；The microstrip feed line with
Radiation patch connects；The shape of the earth plate is to carry out corner cut treated octagon, the ground connection at four angles of rectangle
Plate includes the round gap being located among earth plate and two C-shaped metal tapes being symmetrical set in round gap；Institute
The sides aligned parallel of C-shaped metal tape and round gap is stated, and has gap between the C-shaped metal tape and round slot edge.
Wherein, the shape of the corner cut is isosceles right triangle, and the shape of the radiation patch is circle.
Wherein, the relative dielectric constant of the medium substrate is 6.15.
Wherein, a length of 34mm of the earth plate, width 30mm.
Wherein, the distance between string of described two C-shaped metal tapes is 9mm；The radius in the circle gap is 12mm.
Wherein, the C-shaped metal tape is copper sheet.
Wherein, the earth plate and radiation patch are copper sheet.
Wherein, the C-shaped metal bandwidth is between 1~1.4mm.
Wherein, the gap is 0.1mm.
The ultra wide band differential antennae with trap characteristic of the present invention carries out differential feed using microstrip feed line, and by connecing
Four symmetrically arranged corner cuts on floor and two C-shaped metal tapes being symmetrical set in round gap improve entire tool
The impedance matching for having the ultra wide band differential antennae of trap characteristic realizes good trap function, and makes entirely there is trap
The smaller that the size of the ultra wide band differential antennae of characteristic can design, realizes miniaturization, is conducive to the integrated of radio-frequency front-end.This
Outside, it is excellent that two C-shaped metal tapes being symmetrical set in round gap also so that antenna has been obtained in the radiation characteristic of high band
Change and improve, improves gain of the antenna in high band.
Description of the drawings
Fig. 1 is the structural schematic diagram of the ultra wide band differential antennae with trap characteristic in first embodiment of the invention.
Fig. 2 is the ultra wide band differential antennae with trap characteristic in first embodiment of the invention under different t values
The artificial reflections coefficient results of Ultrawide-band trap antenna.
The emulation of the ultra wide band differential antennae with trap characteristic when Fig. 3 is t=1mm in a specific embodiment of the invention
Reflectance factor result.
The gain of the ultra wide band differential antennae with trap characteristic when Fig. 4 is t=1mm in a specific embodiment of the invention
Curve.
Specific implementation mode
With reference to specific embodiment, the present invention is described in further detail, and following embodiment is the solution to the present invention
It releases, the invention is not limited in following embodiments.
The present invention proposes first embodiment, as shown in Figure 1, a kind of ultra wide band differential antennae with trap characteristic, including
Medium substrate 1, the feed layer 3 positioned at the earth plate 2 of 1 lower surface of medium substrate and positioned at 1 upper surface of medium substrate；It is described
Feed layer includes two radiating elements being symmetrical set；The radiating element includes microstrip feed line 31 and circular radiation patch
32；The microstrip feed line 31 is connect with circular radiation patch 32；The microstrip feed line 31 connect with circular radiation patch 32 one
End is gradual change type structure 33；In the gradual change type structure 33, the width of the microstrip feed line 31 is with microstrip feed line 31 and circle
The shortening of the distance between shape radiation patch 32 and constantly increase.The shape of the earth plate 2 is carried out at four angles of rectangle
Corner cut treated octagon, the earth plate 2 include being located at round gap 21 among earth plate 2 and positioned at round gap 21
In two C-shaped metal tapes 22 being symmetrical set；The sides aligned parallel of the C-shaped metal tape 22 and round gap 21, and the C
Shape metal tape 22 and round gap have gap 23 between 21 edge；The shape of the corner cut is isosceles right triangle；It is described micro-
The symmetrical center line of ribbon feeder 31 is parallel with the symmetrical center line of C-shaped metal tape 22.
The ultra wide band differential antennae with trap characteristic of the present invention carries out differential feed using microstrip feed line 31, wherein connecing
Four symmetrically arranged corner cuts on floor 2 allow the smaller that the size of antenna designs, and realize miniaturization, are conducive to radio frequency
Front end integrates；Two C-shaped metal tapes 22 being symmetrical set in round gap 21, which improve, entirely has trap characteristic
Ultra wide band differential antennae impedance matching, realize good trap function, and make antenna in the radiation characteristic of high band
Optimized and improved, improves gain of the antenna in high band.
In a specific embodiment of the present embodiment, the ultra wide band differential antennae with trap characteristic is with upper and lower
Surface be copper rectangular metal plate based on (copper-clad plate), etch a round gap in the lower surface center of rectangular metal plate
And do corner cut processing on four angles of lower surface, wherein also have two C-shaped metal tapes being symmetrical set in round gap
(TSCSCS structures).Two radiating elements being symmetrical set are etched in the upper surface of rectangular metal plate.As shown in Figure 1, institute
State medium substrate 1 use relative dielectric constant for 6.15 Rogers RT/duroid 6006 (tm) medium substrate；The medium
The size of substrate 1 is 34mm (Lsub) × 30mm (Wsub) × 0.635mm (d).The earth plate 2 is copper sheet；The circle spoke
It is copper sheet to penetrate patch 32 and C-shaped metal tape 22 also.For 22 width t of the C-shaped metal tape between 1~1.4mm, the corner cut is waist
Long D is the isosceles right triangle of 7mm, and the long l of the microstrip feed line 31 is 7.5mm, and the wide w1 of the port of microstrip feed line 31 is
0.35mm, 33 the widest part of the grading structure are 0.7mm, and the diameter w2 of the circular radiation patch 32 is 5.7mm, the circle
The radius cr in gap 21 is 12mm, and the center of circle in the circle gap 21 to the outer peripheral radius cr1 of C-shaped metal tape is 11.9mm,
The i.e. described gap is 0.1mm, and the distance between string of described two C-shaped metal tapes 22 l1 is 9mm.
Fig. 2 shows the ultra wide band difference days with trap characteristic of different C-shaped metal bandwidth t in this specific embodiment
The reflectance factor result of the emulation of line.
As shown in Fig. 2, being based on the grading structure, the ultra wide band differential antennae with trap characteristic of the invention is reflecting
Coefficient (dB) is more less than or equal to -10 parts (showing that antenna is good in the working band transmission performance) below, work frequency
Duan Gengkuan, therefore match more preferable；And with the reduction of C-shaped metal bandwidth t, matching is more preferably.
The C-shaped metal bandwidth t is preferably 1mm, at this point, the artificial reflections coefficient results of Ultrawide-band trap antenna are as schemed
Shown in 3, the gain curve of the ultra wide band differential antennae with trap characteristic is as shown in Figure 4.
As shown in figure 3, it is 3.1~12GHz that there should be the work bandwidth of the ultra wide band differential antennae of trap characteristic, cover completely
The work bandwidth (3.1~10.6GHz) of ultra wide band is covered；The stopband of the ultra wide band differential antennae with trap characteristic is 6.1
~7.25GHz, and stopband both sides are precipitous, bandwidth is also wider, can realize preferable trap function.
As shown in figure 4, should have the simulated gain of the ultra wide band differential antennae of trap characteristic within the scope of 3.1~11GHz,
Simulated gain is 3.24~6.36dBi.Corresponding ultra wide band differential antennae is not there are two C-shaped metal tapes (TSCSCS structures)
When, the ultra-wideband antenna gain ranging of emulation is 0.18~4.34dBi (not shown).With not there are two C-shaped metal tape
The ultra wide band differential antennae of (TSCSCS structures) is compared, and within the scope of 8.5~11GHz, should have the ultra wide band of trap characteristic poor
Divided antenna gain improves about 3dBi.
In the alternate embodiment of above-described embodiment, the corner cut can also be arranged as required to the shapes such as rectangular, round；
The length of the C-shaped metal tape reduces with the increase of l1, while the centre frequency of stopband increases.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (9)
1. a kind of ultra wide band differential antennae with trap characteristic, including medium substrate, the ground connection positioned at medium substrate lower surface
Plate and feed layer positioned at medium substrate upper surface, which is characterized in that the feed layer includes two be symmetrical set
Radiating element；The radiating element includes microstrip feed line and radiation patch；The microstrip feed line is connect with radiation patch；It is described to connect
The shape on floor is to carry out corner cut treated octagon at four angles of rectangle, and the earth plate includes being located among earth plate
Round gap and two C-shaped metal tapes being symmetrical set in round gap；The C-shaped metal tape and round gap
Sides aligned parallel, and have gap between the C-shaped metal tape and round slot edge.
2. the ultra wide band differential antennae according to claim 1 with trap characteristic, which is characterized in that the earth plate
Shape is to carry out corner cut treated octagon at four angles of rectangle, and the shape of the corner cut is isosceles right triangle, institute
The shape for stating radiation patch is circle.
3. the ultra wide band differential antennae according to claim 1 with trap characteristic, which is characterized in that the medium substrate
Relative dielectric constant be 6.15.
4. the ultra wide band differential antennae according to claim 1 with trap characteristic, which is characterized in that the earth plate
A length of 34mm, width 30mm.
5. the ultra wide band differential antennae according to claim 4 with trap characteristic, which is characterized in that described two C-shapeds
The distance between string of metal tape is 9mm；The radius in the circle gap is 12mm.
6. the ultra wide band differential antennae according to claim 1 with trap characteristic, which is characterized in that the C-shaped metal
Band is copper sheet.
7. the ultra wide band differential antennae according to claim 1 with trap characteristic, which is characterized in that the earth plate and
Radiation patch is copper sheet.
8. the ultra wide band differential antennae according to claim 1 with trap characteristic, which is characterized in that the C-shaped metal
Bandwidth is between 1~1.4mm.
9. the ultra wide band differential antennae according to claim 1 with trap characteristic, which is characterized in that the gap is
0.1mm。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710047891.XA CN106898870B (en) | 2017-01-20 | 2017-01-20 | Ultra wide band differential antennae with trap characteristic |
| PCT/CN2017/112992 WO2018133540A1 (en) | 2017-01-20 | 2017-11-25 | Ultra-wideband differential antenna with notch characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710047891.XA CN106898870B (en) | 2017-01-20 | 2017-01-20 | Ultra wide band differential antennae with trap characteristic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106898870A CN106898870A (en) | 2017-06-27 |
| CN106898870B true CN106898870B (en) | 2018-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710047891.XA Expired - Fee Related CN106898870B (en) | 2017-01-20 | 2017-01-20 | Ultra wide band differential antennae with trap characteristic |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106898870B (en) |
| WO (1) | WO2018133540A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898870B (en) * | 2017-01-20 | 2018-08-24 | 深圳市景程信息科技有限公司 | Ultra wide band differential antennae with trap characteristic |
| CN206422230U (en) * | 2017-01-20 | 2017-08-18 | 深圳市景程信息科技有限公司 | Ultra wide band trap differential antennae |
| WO2020186334A1 (en) * | 2019-03-18 | 2020-09-24 | Frederic Nabki | Ultra wideband (uwb) link configuration methods and systems |
| CN112448170B (en) * | 2020-11-27 | 2023-11-14 | 中国人民解放军空军工程大学 | Ultra-wideband wave-absorbing super-structured surface of P-S frequency band and low scattering system |
| CN115332775B (en) * | 2022-08-19 | 2024-04-19 | 电子科技大学 | Differential feed single-layer broadband patch antenna |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201877573U (en) * | 2010-10-29 | 2011-06-22 | 华南理工大学 | Ultra-wideband trapped wave antenna with controllable bandwidth of stop band |
| CN102522630A (en) * | 2012-01-17 | 2012-06-27 | 哈尔滨工程大学 | Ultra wideband switching reconfigurable antenna and method for realizing trapping of different frequencies |
| CN103633425A (en) * | 2013-11-28 | 2014-03-12 | 华南理工大学 | Difference coplanar waveguide UWB (Ultra Wide Band) wide slot trapped wave antenna with high attenuation band characteristic |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898870B (en) * | 2017-01-20 | 2018-08-24 | 深圳市景程信息科技有限公司 | Ultra wide band differential antennae with trap characteristic |
| CN206422230U (en) * | 2017-01-20 | 2017-08-18 | 深圳市景程信息科技有限公司 | Ultra wide band trap differential antennae |
-
2017
- 2017-01-20 CN CN201710047891.XA patent/CN106898870B/en not_active Expired - Fee Related
- 2017-11-25 WO PCT/CN2017/112992 patent/WO2018133540A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201877573U (en) * | 2010-10-29 | 2011-06-22 | 华南理工大学 | Ultra-wideband trapped wave antenna with controllable bandwidth of stop band |
| CN102522630A (en) * | 2012-01-17 | 2012-06-27 | 哈尔滨工程大学 | Ultra wideband switching reconfigurable antenna and method for realizing trapping of different frequencies |
| CN103633425A (en) * | 2013-11-28 | 2014-03-12 | 华南理工大学 | Difference coplanar waveguide UWB (Ultra Wide Band) wide slot trapped wave antenna with high attenuation band characteristic |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018133540A1 (en) | 2018-07-26 |
| CN106898870A (en) | 2017-06-27 |
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Granted publication date: 20180824 Termination date: 20210120 |