CN106876924A - A kind of UWB antennas based on defect ground structure - Google Patents
A kind of UWB antennas based on defect ground structure Download PDFInfo
- Publication number
- CN106876924A CN106876924A CN201510938540.9A CN201510938540A CN106876924A CN 106876924 A CN106876924 A CN 106876924A CN 201510938540 A CN201510938540 A CN 201510938540A CN 106876924 A CN106876924 A CN 106876924A
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- Prior art keywords
- defect
- antenna
- antennas based
- ohm
- medium substrate
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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
Landscapes
- Waveguide Aerials (AREA)
Abstract
The invention discloses a kind of UWB antennas based on defect ground structure, it is characterised in that it includes：Aerial radiation paster (10), 50 ohm of feeder lines (20), medium substrate (30), defect metal ground plates (40), wherein defect metal ground plate (40) positioned at the lower surface of medium substrate (30), aerial radiation paster (10) and 50 ohm of feeder lines (20) positioned at medium substrate (30) upper surface.Radiation patch is the stepped radiation patch of gradual change, the impedance matching bandwidth of antenna has been obtained very big extension, the treatment of partial earthing plate corner cut can effectively be extended into upper lower side frequency, so as to improve the radiation bandwidth of antenna.The antenna has the gain effect of good omnidirectional radiation characteristic and stabilization in full frequency band, and trap characteristic is good, it is adaptable to UWB wireless communication systems.
Description
Technical field
The present invention relates to one kind for ultra wide band (UWB) wireless communication field antenna, especially it is a kind of based on defect ground
UWB antennas.Can be with the frequency band of extended antenna, by defect ground structure while antenna miniaturization is ensured, in UWB frequently
Section has good radiation characteristic.
Background technology
Super-broadband tech is initially to apply in military radar and alignment system, since FCC (Federal
Communications Commission:FCC UWB (3.1~10.6GHz) frequency range opened at the beginning of 2002) it is civilian,
Ultra-wideband Communication Technology has obtained very big promotion and development, and has moved towards commercialization rapidly.
Super-broadband tech has the advantages that not available for many narrow-band technologies, for example, low-power consumption, two-forty, Multipath Transmission
Fusion and more simple hardware configuration etc..The performance of super-broadband tech data transfer in wireless communications is that narrow-band technologies are unable to
Reach.Therefore, compared to traditional wireless communication technology, super-broadband tech can provide higher rate, higher quality, more
Low-power consumption and the performance for wireless communications for more accurately positioning, and UWB technology is using the low-power signal of impulse form, to it
Its wireless communication technology produces less interference, can be coexisted with other communication technologys.The super-broadband tech that these advantages enable
Enough apply to Wireless Personal Network and radar communications system.
By super-broadband tech is had the advantage that, Ultra-wideband Communication Technology has caused the huge pass of academia and business circles
Note, academia and business circles have begun to research and develop the system and part of ultra-wideband communications.All of wireless system and application are required for
To be radiate in signal in the form of an electromagnetic wave slave unit, this is accomplished by using antenna structure.Wireless communication system is for antenna
Performance have very big dependence, therefore antenna is a vital part in wireless device.
Because ultra-wideband antenna is the key components of ultra-wideband communication system, its research is also paid close attention to by people.And
With the development of high speed integrated circuit, the research of current ultra-wideband antenna just develops towards the direction such as miniaturization, integrated.
The content of the invention
Bandwidth it is an object of the invention to extend UWB antennas is UWB antennas in UWB (3.1~10.6GHz) frequencies
Section has good radiation characteristic.Traditional rectangular radiation patch is changed to the stepped radiation patch of gradual change, makes the impedance of antenna
Coupling bandwidth has obtained very big extension, the treatment of partial earthing plate corner cut can effectively be extended into upper lower side frequency, so as to improve
The radiation bandwidth of antenna.
The technical solution adopted in the present invention：
A kind of UWB antennas based on defect ground structure, it is characterised in that it includes：Aerial radiation paster (10), 50
Ohm feeder line (20), medium substrate (30), defect metal ground plate (40), wherein defect metal ground plate (40) is positioned at Jie
The lower surface of matter substrate (30), aerial radiation paster (10) and 50 ohm of feeder lines (20) are positioned at the upper of medium substrate (30)
Surface.
A kind of described UWB antennas based on defect ground structure, it is characterised in that the lower end of aerial radiation paster (10)
Two symmetrical rectangular step structures (11) are etched.
A kind of described UWB antennas based on defect ground structure, it is characterised in that defect metal ground plate (30) it is upper
Etching edge one symmetrical isosceles right angle trigonometry row structure (21), the height of defect metal ground plate and 50 ohm of feeder lines (20)
It is highly equal.
Described a kind of UWB antennas based on defect ground structure, it is characterised in that under defect metal ground plate (40)
Etching edge one constitutes defect metal ground plate (40) on metal ground plate rectangular configuration substantially symmetrical about its central axis (31)
The invention wave filter has following characteristic and advantage relative to existing wave filter：
By the ladder radiation patch of gradual change, make antenna miniaturization, and simple structure, it is easy to process, it is easy to integrated.
By defect ground structure can effective extended antenna bandwidth, it is small in the return loss of whole UWB frequency ranges internal antenna
In -10db, -20dB can be reached at centre frequency.
By adjusting the size of the ladder of radiation patch, good impedance matching effect is reached.
Brief description of the drawings
Fig. 1 is the basic structure top view of embodiment of the present invention 1；
Fig. 2 is the basic block diagram of the radiation patch antenna of embodiment of the present invention 1；
Fig. 3 is the basic block diagram of the defect earth plate of embodiment of the present invention 1；
Specific embodiment
The present invention devises a kind of UWB antennas based on defect ground structure, and the antenna has good spoke in UWB frequency ranges
Penetrate characteristic.
Specifically invention is described in more detail below in conjunction with the accompanying drawings：
An example of the present invention as shown in figure 1, the UWB antennas based on defect ground structure, including aerial radiation paster (10),
50 ohm of feeder lines (20), medium substrate (30), defect metal ground plates (40), wherein defect metal ground plate (40) position
Lower surface, aerial radiation paster (10) and 50 ohm of feeder lines (20) in medium substrate (30) is positioned at medium substrate (30)
Upper surface.
An example of the present invention is as shown in figure 1, medium substrate (30) is the FR-4 that relative dielectric constant is 4.4.Jie
The thickness of matter substrate is 1.6mm, and width is W, and length is L.
As shown in Fig. 2 aerial radiation paster (10) is the hierarchic structure of gradual change, width is W1, and length is L1+2*T1,
The width of hierarchic structure (11) is that S1 is highly T1, and the size of two ladders is identical.Aerial radiation paster (10) it is following
The top edge of edge and 50 ohm of feeder lines (20) connects, 50 ohm of lower edge and medium substrate alignment of feeder line (20), and it is wide
It is g to spend.
As shown in Fig. 2 a kind of UWB antennas based on defect ground structure of the present invention, radiation patch (10) is positioned at medium substrate
Upper surface, using copper product, and using the hierarchic structure of gradual change, the path of electric current can be changed by grading structure so that
Its impedance matching can be made in frequency band wider.The hierarchic structure of gradual change can also reduce the size of antenna.
As shown in figure 1, a kind of UWB antennas based on defect ground structure of the present invention, the width of metal defect earth plate and Jie
The width of matter substrate is identical, and length is L2, and the length with 50 ohm of feeder lines (20) is identical, whole metal defect earth plate position
In the lower surface of medium substrate (30), the lower edge alignment of its lower edge and medium substrate, positioned at 50 ohm of underfaces of feeder line.
As shown in figure 3, a kind of UWB antennas based on defect ground structure of the present invention, will partly make corner cut treatment, structure
(21) can effectively improve the low frequency characteristic of antenna, and lower side frequency can be extended.
As shown in figure 3, a kind of UWB antennas based on defect ground structure of the present invention, two are cut by the lower end of metal ground plate
Individual symmetrical rectangle (31), this part can effectively change the electric current of metallic ground plate surface near feed end, structure (31)
Distribution, increase the current density at symmetrical rectangular (31) edge, can effectively improve the radiation characteristic of HFS, and
Upper side frequency can be improved, the frequency of upper side frequency can be brought up to 12GHz or so by maximum.
A kind of UWB antennas based on defect ground structure of the invention, design parameter：
The selection of medium substrate：Relative dielectric constant is 4.4 FR4 materials, FR4 materials have electrical insulation capability stabilization,
Flatness is good, surface is smooth, without pit, thickness deviation standard the characteristics of, its excellent electrical properties, operating temperature is higher,
Performance itself is affected by environment small, is common used material, is easy to make and industrial production.Many radiation patch and Jie on medium substrate
Metal ground plate under matter substrate uses copper product.
In general the center radiation frequency of monopole antenna is approximately equal to the radiation frequency of the cylindrical wire of same homalographic, and design should
The centre frequency of antenna is 7GHz, and the resonant frequency according to cylindrical wire calculates formula and can be calculated the size of radiation fin.
Such as Fig. 1, Fig. 2, shown in Fig. 3, the specific size of the UWB antennas is：W=30mm, L=35mm, W1=15mm,
L1=13.5mm, T1=1mm, S1=3mm, h=13.5mm, g=3.2mm, L2=13.5mm, T2=5mm, Ht=2mm,
Wt=12mm.
Claims (4)
1. a kind of UWB antennas based on defect ground structure, it is characterised in that it includes：Aerial radiation paster (10), 50 ohm
Feeder line (20), medium substrate (30), defect metal ground plate (40), wherein defect metal ground plate (40) is positioned at Jie
The lower surface of matter substrate (30), aerial radiation paster (10) and 50 ohm of feeder lines (20) are positioned at medium substrate (30)
Upper surface.
2. a kind of UWB antennas based on defect ground structure according to claim 1, it is characterised in that aerial radiation paster (10)
Lower end etched two symmetrical rectangular step structures (11).
3. a kind of UWB antennas based on defect ground structure according to claim 1, it is characterised in that defect metal ground plate
(30) top edge has etched symmetrical isosceles right angle trigonometry row structure (21), the height of defect metal ground plate and
50 ohm of feeder lines (20) it is highly equal.
4. a kind of UWB antennas based on defect ground structure according to claim 1, it is characterised in that defect metal ground plate
(40) lower edge etches one on metal ground plate rectangular configuration substantially symmetrical about its central axis (31), constitutes defect metal and connects
Floor (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938540.9A CN106876924A (en) | 2015-12-10 | 2015-12-10 | A kind of UWB antennas based on defect ground structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938540.9A CN106876924A (en) | 2015-12-10 | 2015-12-10 | A kind of UWB antennas based on defect ground structure |
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| Publication Number | Publication Date |
|---|---|
| CN106876924A true CN106876924A (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510938540.9A Pending CN106876924A (en) | 2015-12-10 | 2015-12-10 | A kind of UWB antennas based on defect ground structure |
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| Country | Link |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172992A (en) * | 2017-12-26 | 2018-06-15 | 电子科技大学 | A kind of novel Archimedian spiral antenna for step frequency Ground Penetrating Radar |
| CN108987940A (en) * | 2018-07-13 | 2018-12-11 | 西安电子科技大学 | High-gain high accuracy positioning antenna and its array applied to base station |
| CN109037936A (en) * | 2018-07-27 | 2018-12-18 | 东华大学 | A kind of broadband microstrip patch antenna |
| CN110444875A (en) * | 2019-07-26 | 2019-11-12 | 成都航天科工微电子***研究院有限公司 | A kind of parallel inverted coplanar waveguide ultra wide band mimo antenna |
| CN111257380A (en) * | 2020-01-16 | 2020-06-09 | 武汉理工大学 | Passive wireless temperature crack binary sensor array based on microstrip antenna |
| CN111342213A (en) * | 2020-02-28 | 2020-06-26 | 成都航空职业技术学院 | Opening resonant ring double-trapped wave ultra-wideband monopole antenna |
| CN112366457A (en) * | 2020-11-11 | 2021-02-12 | 辽宁工程技术大学 | Miniaturized ultra-wideband monopole antenna with double-trapped-wave characteristics |
| CN112490665A (en) * | 2020-11-20 | 2021-03-12 | 榆林学院 | Hypotenuse step change triangle-shaped metal radiation paster multifrequency microstrip MIMO antenna |
| CN113782957A (en) * | 2021-09-16 | 2021-12-10 | 上海磐启微电子有限公司 | Broadband dual-frequency WIFI patch antenna |
| CN114709608A (en) * | 2022-04-13 | 2022-07-05 | 河北工业大学 | Novel ultra-wideband planar monopole antenna |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090174608A1 (en) * | 2007-11-29 | 2009-07-09 | Electronics And Telecommunications Research Institute | Non-dispersive uwb antenna apparatus using multi-resonance, and method for manufacturing the same |
| CN202662788U (en) * | 2012-06-01 | 2013-01-09 | 中国计量学院 | Stair-shaped ultra-wideband micro-strip antenna with single band stop |
| CN104466378A (en) * | 2014-12-01 | 2015-03-25 | 董健 | Controllable three-trapped-wave ultra-broadband antenna |
-
2015
- 2015-12-10 CN CN201510938540.9A patent/CN106876924A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090174608A1 (en) * | 2007-11-29 | 2009-07-09 | Electronics And Telecommunications Research Institute | Non-dispersive uwb antenna apparatus using multi-resonance, and method for manufacturing the same |
| CN202662788U (en) * | 2012-06-01 | 2013-01-09 | 中国计量学院 | Stair-shaped ultra-wideband micro-strip antenna with single band stop |
| CN104466378A (en) * | 2014-12-01 | 2015-03-25 | 董健 | Controllable three-trapped-wave ultra-broadband antenna |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172992B (en) * | 2017-12-26 | 2020-06-16 | 电子科技大学 | Novel Archimedes spiral antenna for stepping frequency ground penetrating radar |
| CN108172992A (en) * | 2017-12-26 | 2018-06-15 | 电子科技大学 | A kind of novel Archimedian spiral antenna for step frequency Ground Penetrating Radar |
| CN108987940A (en) * | 2018-07-13 | 2018-12-11 | 西安电子科技大学 | High-gain high accuracy positioning antenna and its array applied to base station |
| CN108987940B (en) * | 2018-07-13 | 2020-06-05 | 西安电子科技大学 | High-gain high-precision positioning antenna applied to base station and array thereof |
| CN109037936A (en) * | 2018-07-27 | 2018-12-18 | 东华大学 | A kind of broadband microstrip patch antenna |
| CN110444875A (en) * | 2019-07-26 | 2019-11-12 | 成都航天科工微电子***研究院有限公司 | A kind of parallel inverted coplanar waveguide ultra wide band mimo antenna |
| CN111257380A (en) * | 2020-01-16 | 2020-06-09 | 武汉理工大学 | Passive wireless temperature crack binary sensor array based on microstrip antenna |
| CN111257380B (en) * | 2020-01-16 | 2021-09-10 | 武汉理工大学 | Passive wireless temperature crack binary sensor array based on microstrip antenna |
| CN111342213A (en) * | 2020-02-28 | 2020-06-26 | 成都航空职业技术学院 | Opening resonant ring double-trapped wave ultra-wideband monopole antenna |
| CN112366457A (en) * | 2020-11-11 | 2021-02-12 | 辽宁工程技术大学 | Miniaturized ultra-wideband monopole antenna with double-trapped-wave characteristics |
| CN112490665A (en) * | 2020-11-20 | 2021-03-12 | 榆林学院 | Hypotenuse step change triangle-shaped metal radiation paster multifrequency microstrip MIMO antenna |
| CN112490665B (en) * | 2020-11-20 | 2024-02-06 | 榆林学院 | Hypotenuse step change triangle metal radiation patch multi-frequency microstrip MIMO antenna |
| CN113782957A (en) * | 2021-09-16 | 2021-12-10 | 上海磐启微电子有限公司 | Broadband dual-frequency WIFI patch antenna |
| CN114709608A (en) * | 2022-04-13 | 2022-07-05 | 河北工业大学 | Novel ultra-wideband planar monopole antenna |
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Application publication date: 20170620 |