CN106876929A - A kind of UWB band resistance antennas based on rice font EBG structures - Google Patents
A kind of UWB band resistance antennas based on rice font EBG structures Download PDFInfo
- Publication number
- CN106876929A CN106876929A CN201510938586.0A CN201510938586A CN106876929A CN 106876929 A CN106876929 A CN 106876929A CN 201510938586 A CN201510938586 A CN 201510938586A CN 106876929 A CN106876929 A CN 106876929A
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- China
- Prior art keywords
- ebg
- rice font
- structures
- uwb
- 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
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
Abstract
A kind of UWB band resistance antennas based on rice font EBG structures, are related to a kind of trap frequency to be located at the UWB band resistance antennas of WLAN, RFID frequency range.The antenna is by medium substrate (105), radiating element (101), impedance matching on medium substrate are input into microstrip line (102), rice font EBG electromagnetic bandgap structures (103), metal ground plate (104) composition under medium substrate.The present invention realizes the pass band width of UWB requirements using radiating element, impedance matching input microstrip line and metal ground plate, and improving stopband attenuation using the circular radiation unit with circular fractal structure suppresses, and band-stop response is realized using EBG electromagnetic bandgap structures.Antenna stopband of the present invention is near 5.2GHz and 6.8GHz, it is to avoid interfered with wlan system, rfid system.
Description
Technical field
The present invention relates to a kind of UWB band resistance antennas, more particularly, to a kind of UWB band resistance antennas based on rice font EBG structures,
What the antenna can suppress wlan system (5.15-5.35GHz) interferes problem.
Background technology
2 months 2002, FCC (FCC) approval 3.1-10.6GHz frequency ranges were used for business telecommunication, therefore UWB
It is widely used.
However, because the frequency band of ultra-wideband communications covering is wider, some frequency bands and other wireless system band sharing resources, it is possible to and
Other systems are interfered, such as Wimax systems (3.2-3.5GHz), wlan system (5.15-5.35GHz), (5.725-5.825GHz)
With rfid system (6.8GHz).How to solve co-channel interference and study important content, therefore the ultra wide band with stopband characteristic as UWB
Antenna has practical value very high.
Occur in that many ultra wide bands hinder the mentality of designing of antenna in recent years, fluting, medium back parasitic metal patch such as in radiation patch
Piece, increase open loop resonator, design work mutually form stopband etc. in the antenna of different frequency bands.But all there is limitation in these methods, than
As antenna volume is big, it is unfavorable for the system integration；The centre frequency of stopband is difficult regulation.In the present invention, using receiving significant attention in recent years
EBG structures, formed band-stop response.
Electro-magnetic bandgap (Electromagnetic Band Gap, EBG) structure has forbidden band characteristic and the superior function with mutually reflection in itself,
Field of antenna is applied to, can effectively improve the antenna pattern of antenna, improve gain, reduce secondary lobe and back lobe etc., be applied to array
Antenna, can reduce the effect of intercoupling between antenna.(Electromagnetic Band Gap, EBG) structure meets Modern wireless communication
Requirement of the technology to high performance antenna, so that it is increasingly extensive in the application of field of microwave communication.
Transmission due to EBG structures with the electromagnetic wave that with characteristic is prohibited, can suppress in special frequency channel on the transmission line, so as to form stopband；
And it is easy to integrated with microstrip line, additional space will not be taken；Also, the centre frequency of stopband can easily be accommodated.Therefore, EBG structures are non-
Often it is suitably applied in the design of ultra wide band resistance antenna, makes small volume, the ultra wide band stopband antenna of low cost.
The content of the invention
It is an object of the invention to provide a kind of UWB band resistance antennas based on rice font EBG structures, the antenna can suppress UWB
System is interfered with wlan system.
The technical solution adopted in the present invention：
The present invention includes medium substrate (105), the radiating element (101) being formed on medium substrate, circular etching fractal structure
(106), impedance matching is input into microstrip line (102), rice font EBG electromagnetic bandgap structures (103), is formed at the metal under medium substrate
Earth plate (104)；The elementary cell of the rice font EBG electromagnetic bandgap structures, is finger-like line (1031) and broken line chi structure (1032)
The square patch structure of composition.
A kind of UWB band resistance antennas based on rice font EBG structures, it is characterised in that rice font EBG electromagnetic bandgap structures
(103) elementary cell, the width of its finger-like line (1031) is equal with the gap between each line.
A kind of UWB band resistance antennas based on rice font EBG structures, it is characterised in that rice font EBG electromagnetic bandgap structures
(103) elementary cell is symmetrically distributed in impedance matching input microstrip line (102) both sides；There are 6 elementary cells per side.
A kind of UWB band resistance antennas based on rice font EBG structures, it is characterised in that radiating element (101) is with circle
Shape etches the circular patch of fractal structure.
A kind of UWB band resistance antennas based on rice font EBG structures, it is characterised in that medium substrate (105) uses GML1000
Material.
A kind of UWB band resistance antennas based on rice font EBG structures, it is characterised in that the frequency of the stopband is in 5.2GHz
Near, it is to avoid interfere problem with wlan system (5.15-5.35GHz).
The invention antenna has following characteristic and advantage relative to existing antenna：
Design is simple, compact conformation, easy to process, with low cost.
The increase of rice word chiasma type EBG structures, good standing-wave ratio and the directional diagram in primary antenna passband are not changed；And with stopband
The advantage of narrow bandwidth.
Brief description of the drawings
Fig. 1 is the basic structure front schematic view of embodiment of the present invention 1.
Fig. 2 is the basic structure side schematic view of embodiment of the present invention 1.
Fig. 3 is the basic structure schematic rear view of embodiment of the present invention 1.
Fig. 4 is the rice word chiasma type EBG construction unit lattice structure schematic diagrames of embodiment of the present invention 1.
Specific embodiment
The present invention devises a kind of UWB band resistance antennas based on rice font EBG structures, and the wave filter can be avoided and WLAN systems
That unites interferes.
Distance is described in more detail to invention below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of UWB band resistance antennas based on rice font EBG structures of the invention, the radiating element on medium substrate
(101), impedance matching is input into microstrip line (102), circular etching fractal structure (106), rice word chiasma type EBG electromagnetic bandgap structures (103),
Using copper product.
An example of the present invention is as shown in Fig. 2 medium substrate (105) is the GML1000 materials that dielectric constant is 3.2.Jie
The thickness of matter substrate is 0.762mm.
Metal ground plate (104) under medium substrate uses copper product.
As shown in figure 1, the length of L1, L2, L3, L4, L5, L6 be respectively 65mm, 10mm, 7.86mm, 44.45mm,
1mm、0.8mm；As shown in Fig. 2 the length of L10 is 0.762mm；As shown in figure 3, the length of L2, L7, L8, L9 is respectively
10mm、4.95mm、44mm、0.8mm。
The design of rice word chiasma type EBG structures：According to micro-strip transmit correlation theory it can be seen from, electric capacity C by elementary cell finger-like line
(1031) obtain, inductance L is obtained by rice word chi structure (1032) of elementary cell；Finger-like line (1031) and rice word chi structure
(1032) resonance structure is constituted, the resonant frequency and bandwidth of elementary cell is determined.Meanwhile, EBG electromagnetic bandgap structures and impedance
Electric capacity C is caused to increase with coupling between with microstrip line (102) is input into so that resonant frequency reduction, bandwidth narrow.To realize WLAN
Respectively there are 6 elementary cells stopband characteristic in frequency range, design microstrip line both sides, as shown in figure 4, elementary cell L11, L12, L13,
The length of L14, L15, L16 is respectively 0.885mm, 2.4mm, 0.15mm, 0.15mm, 0.1mm, 4.32mm.
Claims (6)
1. a kind of UWB bands based on rice font EBG structures hinder antenna, it is characterised in that including medium substrate (105), formed
In the radiating element (101) on medium substrate, circular etching fractal structure (106), impedance matching be input into microstrip line (102),
Rice font EBG electromagnetic bandgap structures (103), is formed at the metal ground plate (104) under medium substrate；The rice font
The elementary cell of EBG electromagnetic bandgap structures, is the pros of finger-like line (1031) and broken line chi structure (1032) composition
Shape paster structure.
2. a kind of UWB bands based on rice font EBG structures hinder antenna according to claim 1, it is characterised in that rice font
The elementary cell of EBG electromagnetic bandgap structures (103), the width of its finger-like line (1031) is equal with the gap between each line.
3. a kind of UWB bands based on rice font EBG structures hinder antenna according to claim 1, it is characterised in that rice font
The elementary cell of EBG electromagnetic bandgap structures (103) is symmetrically distributed in impedance matching input microstrip line (102) both sides；Often
Respectively there are 4 elementary cells side.
4. a kind of UWB bands based on rice font EBG structures hinder antenna according to claim 1, it is characterised in that radiation is single
First (101) are the circular patch with circle etching fractal structure.
5. a kind of UWB bands based on rice font EBG structures hinder antenna according to claim 1, it is characterised in that medium base
Plate (105) uses GML1000 materials.
6. a kind of UWB bands based on rice font EBG structures hinder antenna according to claim 1, it is characterised in that the resistance
The frequency of band is respectively near 5.2Ghz and 6.8GHz, it is suppressed that radio ultra wide band system to rfid system (6.8GHz),
The interference of wlan system (5.15-5.35GHz).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938586.0A CN106876929A (en) | 2015-12-10 | 2015-12-10 | A kind of UWB band resistance antennas based on rice font EBG structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938586.0A CN106876929A (en) | 2015-12-10 | 2015-12-10 | A kind of UWB band resistance antennas based on rice font EBG structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106876929A true CN106876929A (en) | 2017-06-20 |
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ID=59239400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510938586.0A Pending CN106876929A (en) | 2015-12-10 | 2015-12-10 | A kind of UWB band resistance antennas based on rice font EBG structures |
Country Status (1)
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9030360B2 (en) * | 2012-07-26 | 2015-05-12 | Raytheon Company | Electromagnetic band gap structure for enhanced scanning performance in phased array apertures |
| CN104681956A (en) * | 2013-11-27 | 2015-06-03 | 哈尔滨黑石科技有限公司 | UWB (Ultra-wideband) band-notch antenna with steep stop band |
| CN104681955A (en) * | 2013-11-27 | 2015-06-03 | 哈尔滨黑石科技有限公司 | UWB (ultra wide band) antenna with dual resistance band function |
-
2015
- 2015-12-10 CN CN201510938586.0A patent/CN106876929A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9030360B2 (en) * | 2012-07-26 | 2015-05-12 | Raytheon Company | Electromagnetic band gap structure for enhanced scanning performance in phased array apertures |
| CN104681956A (en) * | 2013-11-27 | 2015-06-03 | 哈尔滨黑石科技有限公司 | UWB (Ultra-wideband) band-notch antenna with steep stop band |
| CN104681955A (en) * | 2013-11-27 | 2015-06-03 | 哈尔滨黑石科技有限公司 | UWB (ultra wide band) antenna with dual resistance band function |
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| PB01 | Publication | ||
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Application publication date: 20170620 |