CN108172991A - A kind of super wide band plane single pole sub antenna - Google Patents
A kind of super wide band plane single pole sub antenna Download PDFInfo
- Publication number
- CN108172991A CN108172991A CN201711348991.2A CN201711348991A CN108172991A CN 108172991 A CN108172991 A CN 108172991A CN 201711348991 A CN201711348991 A CN 201711348991A CN 108172991 A CN108172991 A CN 108172991A
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- Prior art keywords
- antenna
- monopole
- wide band
- single pole
- minor matters
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Classifications
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- 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
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/40—Element having extended radiating surface
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- Waveguide Aerials (AREA)
- Details Of Aerials (AREA)
Abstract
The invention discloses a kind of super wide band plane single pole sub antenna, including：Medium substrate, monopole radiation patch, lumped device and earth plate.Monopole radiation patch is made of monopole antenna main body and top loading.Monopole radiation patch, using triangle corner cut, is mainly used for the impedance matching of high frequency section close to ground plate section.Antenna body loading lamped element be mainly used for reduce antenna working frequency range and smooth antenna entire frequency range gain；Monopole top loads a plurality of rectangle open circuit minor matters, increases the capacitance between antenna and floor, further reduces the working frequency range of antenna.The present invention effectively reduces antenna size by loading the open circuit minor matters of lamped element and addition over the ground while excellent ultra wide band characteristic is kept, convenient for application of the antenna in monitoring field.
Description
Technical field
The invention belongs to antenna technical field more particularly to a kind of ultra wide band (UWB) antennas.
Background technology
With the rapid development of radiotechnics, RF resources demand increasingly increases, radio monitoring and management
Face more challenges.As the important component of radio monitoring, broadband of the monitoring system to front end monitoring aerial, height
Gain proposes increasingly higher demands.Meanwhile with the continuous development of low latitude electronic equipment, such as the unmanned plane skill of low-latitude flying
Art etc., hand-held monitoring device face the market demand of bigger.Traditional monitoring aerial has been unable to meet the demand of application.Cause
This, to more broadband, more high-gain, smallerization, the monitoring aerial design of farther monitoring distance seems particularly urgent.At present,
The antenna form that monitoring aerial uses mainly has monopole antenna etc., and domestic and foreign scholars propose various minimized wide-band lists in succession
Pole sub-antenna design.In the case where frequency is relatively low, the size of antenna is still larger, is not suitable for some hand-held monitoring devices
Application.
In conclusion existing monopole monitoring aerial is minimizing, broadband, high-gain aspect still has certain limitation
Property.
Invention content
Goal of the invention：For the above-mentioned prior art, it proposes a kind of super wide band plane single pole sub antenna, solves existing monitoring day
Line is insufficient in terms of miniaturization, broadband, high-gain the problem of.
Technical solution：A kind of super wide band plane single pole sub antenna, including：
Medium substrate；Earth plate；The medium substrate is fixedly connected with earth plate；
Monopole radiation patch is loaded including monopole antenna main body and antenna top；The monopole antenna main body by
The copper patch that covers of three sections of triangle corner cuts forms；The monopole radiation patch is cut close to the ground plate section using triangle
Angle；Feed port is equipped between the monopole radiation patch and earth plate；
Antenna top loads, and is included in the monopole antenna main body top both sides and respectively extends open circuit minor matters, the institute of both sides
It is symmetrical to state open circuit minor matters, the open circuit minor matters and monopole antenna body parallel；
Lumped device, the copper patch that covers being included between the monopole antenna body top and middle part load the first lump
Device, the copper patch that covers between middle part and bottom load the second lumped device, and the feed port loads third lumped device.
Further, the medium substrate uses dielectric constant as 2.2 Rogers RT5880 dielectric-slabs, width
12cm, height 35cm.
Further, the monopole radiation patch covers steel structure for medium substrate single side.
Further, the monopole radiation patch totally high 34cm, wide 12cm.
Further, the open circuit minor matters per side include 2 separate rectangular minor matters, and each wide 0.8cm of rectangle minor matters is high
6cm, adjacent rectangle open circuit minor matters interval 0.9cm.
Further, the copper patch loading lumped device part of covering of the monopole antenna main body is cut using triangle
Angle.
Further, the feed port uses 50ohm coaxial feed interfaces.
Further, first lumped device includes the series inductance that an inductance value is 2nH, and loading position is away from ground connection
Plate 28.45cm；Second lumped device includes the inductance that an inductance value is 1uH and the resistance that a resistance value is 750ohm simultaneously
Connection, loading position is away from earth plate 19.25cm；The third lumped device includes the resistance of two groups of 200ohm and the inductance string of 4nH
After connection, then parallel connection is carried out, loading position is feed port.
Further, the medium substrate founds piece using L-type with earth plate and fixes.
Advantageous effect：Super wide band plane single pole sub antenna provided by the invention, by loading lamped element, loading rectangle is opened
Road minor matters so that the antenna has the characteristics of broadband, high-gain, 35 × 12cm of overall dimensions while meeting miniaturization2(about
For the λ@200MHz of 0.023 λ × 0.008).The rectangle open circuit minor matters of antenna top loading, increase the electricity between antenna and floor
Hold, the working frequency of antenna under the premise of antenna size is not increased, can be reduced.The lumped device of antenna body loading,
Under the premise of antenna size is not increased, can reduce the working frequency of antenna, smooth antenna entire frequency range gain, after being convenient for
Grade circuit integrates.By loading lamped element and rectangle open circuit minor matters, the size of antenna is effectively reduced.
The present invention considers influence of the antenna floor to Antenna Operation performance, and monopole radiation patch is close to ground plate section
Using triangle corner cut, the impedance matching between patch and earth plate is improved, optimizes the performance near high frequency.Monopole day
Two coupling parts of line main body use triangle beveling technique, reduce the impedance mismatching of lumped device loading coupling part.
Super wide band plane single pole sub antenna provided by the present invention for monitoring field is shown compared with existing monitoring aerial
Writing advantage is：(1) on the basis of classical plane single pole sub antenna, segmentation is loaded with lumped device, by adjusting loading lump device
The numerical value of part under the premise of antenna size is not increased, extends current path, reduces the lowest operating frequency of antenna.It is logical
The position of adjustment loading lumped device is crossed, gain flatness of the antenna in entire frequency range can be improved so that the antenna is entire
In frequency range there is smooth gain curve, good performance is provided for follow-up monitoring system.
(2) in antenna top loading rectangle open circuit minor matters, under the premise of antenna longitudinal size is not increased, monopole is increased
Capacitance between sub-antenna and floor further reduced the lowest operating frequency of antenna, make the smaller of antenna, whole ruler
Very little 35 × 12cm2。
(3) by combining lamped element loading and top open circuit minor matters loading technique, the present invention and classical planar monopole
It compares, antenna size is greatly reduced, antenna structure is simple, and reliability is high, and size is small, is easy to a group battle array.
Description of the drawings
Fig. 1 is the structure chart of super wide band plane single pole sub antenna provided in an embodiment of the present invention.
Fig. 2 is lumped device structure diagram, wherein (a) is the structure diagram of the first lumped device, (b) is the second collection
The structure diagram of total device, figure (c) are the structure diagram of third lumped device.
Fig. 3 is the voltage standing wave ratio analogous diagram of super wide band plane single pole sub antenna provided in an embodiment of the present invention.
Fig. 4 is the maximum gain curve analogous diagram of super wide band plane single pole sub antenna provided in an embodiment of the present invention.
Fig. 5 is super wide band plane single pole sub antenna provided in an embodiment of the present invention in different frequency antenna pattern.
Specific embodiment
Further explanation is done to the present invention below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of super wide band plane single pole sub antenna, including：Medium substrate 5 is set on 5 surface of medium substrate
Monopole radiation patch and lumped device and the earth plate 7 for being arranged on 5 one end of medium substrate.
Medium substrate 5 uses dielectric constant as 2.2 Rogers RT5880 dielectric-slabs, width 12cm, height 35cm.
Medium substrate 5 founds piece 8 using L-type with earth plate 7 and fixes.Monopole radiation patch covers steel structure for medium substrate single side, overall
High 34cm, wide 12cm are loaded including monopole antenna main body 6 and antenna top.Wherein, monopole antenna main body 6 is by three section three
Angular corner cut covers copper patch composition.The loading of antenna top is included in the open circuit that 6 top both sides of monopole antenna main body respectively extend
Minor matters 4, the open circuit minor matters of both sides are symmetrical, and open circuit minor matters are parallel with monopole antenna main body 6；Open circuit minor matters 4 per side are equal
Including 2 separate rectangular minor matters, each wide 0.8cm of rectangle minor matters, high 6cm, adjacent rectangle minor matters interval 0.9cm.Monopole spoke
It penetrates and feed port is set between patch and earth plate, feed port uses 50ohm coaxial feed interfaces.
The copper patch that covers that lumped device is included between monopole antenna body top and middle part loads the first lumped device
1, the copper patch that covers between middle part and bottom loads the second lumped device 2 and in feed port loading third lumped device 3.
Wherein, the first lumped device 1 includes the series inductance that an inductance value is 2nH, and loading position is away from earth plate 28.45cm；Second
Lumped device 2 includes the inductance that an inductance value is 1uH and the resistor coupled in parallel that a resistance value is 750ohm, and loading position is away from ground connection
Plate 19.25cm；After third lump device 3 includes the inductance series connection of the resistance and 4nH of two groups of 200ohm, then parallel connection is carried out, loaded
In feed port.The copper patch loading lumped device part of covering of monopole antenna main body 6 uses triangle corner cut.
The application effect of the present invention is explained in detail with reference to emulation.
Fig. 3 gives the VSWR that the present invention emulates.It can be seen that in the entire frequency ranges of 20MHZ-6GHZ, the voltage of antenna is stayed
Bobbi representative value is approximately less than 2, and impedance matching is preferable.
Fig. 4 gives the maximum gain that the present invention emulates.As can be seen that with the increase of operating frequency of antenna, antenna increases
Benefit is slowly increased to 7dB by -41dB, and change in gain trend is gentle in entire frequency range, is conducive to the integrated of post-amplifier.
The gain of the smooth variation is mainly adjusted by the position of the value of the lamped element of 1,2 parts and element in Fig. 1 and realizes.
Fig. 5 gives the radiation direction schematic diagram of the present invention, wherein figure (a) is 30MHz, the directional diagram in xoy faces is schemed (b)
For 30MHZ, the directional diagram in yoz faces, figure (c) is 500MHZ, and the directional diagram in xoy faces schemes (d) for 500MHZ, the direction in yoz faces
Figure.It can be seen that in yoz planes, antenna maintains good omnidirectional radiation characteristic substantially.
In conclusion the super wide band plane single pole sub antenna of the present invention is added by loading passive lumped device and antenna top
Open circuit minor matters are carried, under the premise of antenna size is not increased, the lowest operating frequency of antenna is greatly reduced, makes the structure of antenna
It is compacter.This designing scheme antenna structure is simple, easy to process, and antenna flat gain in broadband is easy to a group battle array, has
Good application prospect.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of super wide band plane single pole sub antenna, which is characterized in that including：
Medium substrate；Earth plate；The medium substrate is fixedly connected with earth plate；
Monopole radiation patch is loaded including monopole antenna main body and antenna top；The monopole antenna main body is by three sections
Triangle corner cut covers copper patch composition；The monopole radiation patch uses triangle corner cut close to the ground plate section；
Feed port is equipped between the monopole radiation patch and earth plate；
Antenna top loads, and is included in the monopole antenna main body top both sides and respectively extends open circuit minor matters, the described of both sides opens
Road minor matters are symmetrical, the open circuit minor matters and monopole antenna body parallel；
Lumped device, the copper patch that covers being included between the monopole antenna body top and middle part load the first lump device
Part, the copper patch that covers between middle part and bottom load the second lumped device, and the feed port loads third lumped device.
2. super wide band plane single pole sub antenna as described in claim 1, which is characterized in that the medium substrate is normal using dielectric
Count the Rogers RT5880 dielectric-slabs for 2.2, width 12cm, height 35cm.
3. super wide band plane single pole sub antenna as described in claim 1, which is characterized in that the monopole radiation patch is is situated between
Matter substrate single side covers steel structure.
4. super wide band plane single pole sub antenna as described in claim 1, which is characterized in that the monopole radiation patch is overall
High 34cm, wide 12cm.
5. super wide band plane single pole sub antenna as described in claim 1, which is characterized in that the open circuit minor matters per side include 2
A separate rectangular minor matters, each wide 0.8cm of rectangle minor matters, high 6cm, adjacent rectangle open circuit minor matters interval 0.9cmm.
6. super wide band plane single pole sub antenna as described in claim 1, which is characterized in that the monopole antenna main body is covered
Copper patch loading lumped device part uses triangle beveling technique.
7. super wide band plane single pole sub antenna as described in claim 1, which is characterized in that the feed port uses 50ohm
Coaxial feed interface.
8. super wide band plane single pole sub antenna as described in claim 1, which is characterized in that first lumped device includes one
A inductance value is the series inductance of 2nH, and loading position is away from earth plate 28.45cm；Second lumped device includes an inductance
It is worth the resistor coupled in parallel for being 750ohm for the inductance of 1uH and a resistance value, loading position is away from earth plate 19.25cm；The third collection
After total device includes the inductance series connection of the resistance and 4nH of two groups of 200ohm, then parallel connection is carried out, loading position is feed port.
9. super wide band plane single pole sub antenna as described in claim 1, which is characterized in that the medium substrate is adopted with earth plate
Piece is found with L-type to fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711348991.2A CN108172991B (en) | 2017-12-15 | 2017-12-15 | A kind of super wide band plane single pole sub antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711348991.2A CN108172991B (en) | 2017-12-15 | 2017-12-15 | A kind of super wide band plane single pole sub antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108172991A true CN108172991A (en) | 2018-06-15 |
| CN108172991B CN108172991B (en) | 2018-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711348991.2A Active CN108172991B (en) | 2017-12-15 | 2017-12-15 | A kind of super wide band plane single pole sub antenna |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599669A (en) * | 2019-01-15 | 2019-04-09 | 西安雷讯电子科技有限责任公司 | A kind of communication antenna of miniaturization vertical polarization multiband work |
| CN110474157A (en) * | 2019-08-27 | 2019-11-19 | 南京邮电大学 | A kind of mobile communication frequency range printed monopole antenna |
| CN110518347A (en) * | 2019-08-27 | 2019-11-29 | 南京邮电大学 | A kind of multiband car antenna |
| CN110676554A (en) * | 2019-08-02 | 2020-01-10 | 杭州法动科技有限公司 | Low-profile ultra-wideband indoor communication plane structure antenna |
| CN111193106A (en) * | 2019-12-18 | 2020-05-22 | 南京理工大学 | Microstrip monopole antenna |
| CN113708051A (en) * | 2021-08-27 | 2021-11-26 | 华南理工大学 | Radiation unit, antenna and base station |
| CN114374088A (en) * | 2022-01-21 | 2022-04-19 | 西安交通大学 | Plane ultra-wideband ground penetrating radar antenna |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599669A (en) * | 2019-01-15 | 2019-04-09 | 西安雷讯电子科技有限责任公司 | A kind of communication antenna of miniaturization vertical polarization multiband work |
| CN110676554A (en) * | 2019-08-02 | 2020-01-10 | 杭州法动科技有限公司 | Low-profile ultra-wideband indoor communication plane structure antenna |
| CN110676554B (en) * | 2019-08-02 | 2021-04-30 | 杭州法动科技有限公司 | Low-profile ultra-wideband indoor communication plane structure antenna |
| CN110474157A (en) * | 2019-08-27 | 2019-11-19 | 南京邮电大学 | A kind of mobile communication frequency range printed monopole antenna |
| CN110518347A (en) * | 2019-08-27 | 2019-11-29 | 南京邮电大学 | A kind of multiband car antenna |
| CN110518347B (en) * | 2019-08-27 | 2020-10-16 | 南京邮电大学 | Multi-band vehicle-mounted antenna |
| CN111193106A (en) * | 2019-12-18 | 2020-05-22 | 南京理工大学 | Microstrip monopole antenna |
| CN111193106B (en) * | 2019-12-18 | 2022-09-13 | 南京理工大学 | Microstrip monopole antenna |
| CN113708051A (en) * | 2021-08-27 | 2021-11-26 | 华南理工大学 | Radiation unit, antenna and base station |
| CN113708051B (en) * | 2021-08-27 | 2023-06-20 | 华南理工大学 | Radiating element, antenna and base station |
| CN114374088A (en) * | 2022-01-21 | 2022-04-19 | 西安交通大学 | Plane ultra-wideband ground penetrating radar antenna |
| CN114374088B (en) * | 2022-01-21 | 2023-09-22 | 西安交通大学 | Planar ultra-wideband ground penetrating radar antenna |
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| Publication number | Publication date |
|---|---|
| CN108172991B (en) | 2018-12-07 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20180615 Assignee: RUIFENG RF TECHNOLOGY (SHANGHAI) Co.,Ltd. Assignor: Nanjing University of Aeronautics and Astronautics Contract record no.: X2021980000293 Denomination of invention: An ultra wideband planar monopole antenna Granted publication date: 20181207 License type: Common License Record date: 20210112 |
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