CN106876938A - A kind of precipitous UWB band resistance antennas of new stopband - Google Patents
A kind of precipitous UWB band resistance antennas of new stopband Download PDFInfo
- Publication number
- CN106876938A CN106876938A CN201510940421.7A CN201510940421A CN106876938A CN 106876938 A CN106876938 A CN 106876938A CN 201510940421 A CN201510940421 A CN 201510940421A CN 106876938 A CN106876938 A CN 106876938A
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- CN
- China
- Prior art keywords
- stopband
- precipitous
- uwb
- new
- medium substrate
- 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
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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
Abstract
A kind of new dual-attenuation UWB antennas, 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), 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 U-shaped radiating element 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 the UWB band resistance antennas that a kind of new stopband is precipitous, the antenna
Wlan system (5.15-5.35GHz) can be suppressed 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 new stopband it is precipitous UWB band resistance antenna, the antenna can suppress UWB systems with
Wlan system is interfered.
The technical solution adopted in the present invention：
The present invention includes medium substrate (105), the radiating element (101) being formed on medium substrate, impedance matching input microstrip line
(102), rhombus etches fractal structure (106), rice word chiasma type EBG electromagnetic bandgap structures (103), is formed at the gold under medium substrate
Category earth plate (104)；The elementary cell of the rice word chiasma type EBG electromagnetic bandgap structures, is finger-like line (1031) and right-angled intersection knot
The square patch structure that structure (1032) is constituted.
A kind of precipitous UWB band resistance antennas of new stopband, it is characterised in that rice word chiasma type 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 precipitous UWB band resistance antennas of new stopband, it is characterised in that rice word chiasma type EBG electromagnetic bandgap structures (103)
Elementary cell be symmetrically distributed in impedance matching input microstrip line (102) both sides；There are 7 elementary cells per side.
The precipitous UWB band resistance antennas of a kind of new stopband, it is characterised in that radiating element (101) is circular patch.
The precipitous UWB band resistance antennas of a kind of new stopband, it is characterised in that medium substrate (105) uses GML1000 materials
Material.
A kind of new stopband it is precipitous UWB band resistance antenna, it is characterised in that the frequency of the stopband near 5.2GHz,
Avoid and 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 precipitous UWB band resistance antennas of new stopband, and the wave filter can avoid mutual with wlan system
Interference.
Distance is described in more detail to invention below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of precipitous UWB band resistance antennas of new stopband of the invention, radiating element (101) on medium substrate,
Impedance matching is input into microstrip line (102), rhombus and etches fractal structure (106), rice word chiasma type EBG electromagnetic bandgap structures (103), adopts
Use 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 5 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 precipitous UWB bands of new stopband hinder antenna, it is characterised in that including medium substrate (105), be formed at medium base
Radiating element (101), rhombus on plate etch fractal structure (106), impedance matching and are input into microstrip line (102), meter Zi Jiao
Forked type EBG electromagnetic bandgap structures (103), is formed at the metal ground plate (104) under medium substrate；The rice word intersects
The elementary cell of type EBG electromagnetic bandgap structures, is that finger-like line (1031) and rice word chi structure (1032) are constituted just
Square patch structure.
2. a kind of precipitous UWB bands of new stopband hinder antenna according to claim 1, it is characterised in that rice word chiasma type EBG
The elementary cell of electromagnetic bandgap structure (103), the width of its finger-like line (1031) is equal with the gap between each line.
3. a kind of precipitous UWB bands of new stopband hinder antenna according to claim 1, it is characterised in that rice word chiasma type EBG
The elementary cell of electromagnetic bandgap structure (103) is symmetrically distributed in impedance matching input microstrip line (102) both sides；Have per side
7 elementary cells.
4. a kind of precipitous UWB bands of new stopband hinder antenna according to claim 1, it is characterised in that radiating element (101)
It is circular patch.
5. a kind of UWB bands of new E BG structures hinder antenna according to claim 1, it is characterised in that medium substrate (105)
Using GML1000 materials.
6. a kind of UWB bands of new E BG structures hinder antenna according to claim 1, it is characterised in that the frequency of the stopband
Rate is near 5.2GHz, it is to avoid interfere problem with wlan system (5.15-5.35GHz).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510940421.7A CN106876938A (en) | 2015-12-12 | 2015-12-12 | A kind of precipitous UWB band resistance antennas of new stopband |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510940421.7A CN106876938A (en) | 2015-12-12 | 2015-12-12 | A kind of precipitous UWB band resistance antennas of new stopband |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106876938A true CN106876938A (en) | 2017-06-20 |
Family
ID=59239373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510940421.7A Pending CN106876938A (en) | 2015-12-12 | 2015-12-12 | A kind of precipitous UWB band resistance antennas of new stopband |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106876938A (en) |
Citations (2)
| 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 |
| CN104681965A (en) * | 2013-12-02 | 2015-06-03 | 哈尔滨黑石科技有限公司 | Dual-stopband UWB (Ultra-wide Bandwidth) antenna with steep stopbands |
-
2015
- 2015-12-12 CN CN201510940421.7A patent/CN106876938A/en active Pending
Patent Citations (2)
| 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 |
| CN104681965A (en) * | 2013-12-02 | 2015-06-03 | 哈尔滨黑石科技有限公司 | Dual-stopband UWB (Ultra-wide Bandwidth) antenna with steep stopbands |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170620 |
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| WD01 | Invention patent application deemed withdrawn after publication |