CN106876928A - A kind of precipitous dual-attenuation UWB antennas of stopband - Google Patents
A kind of precipitous dual-attenuation UWB antennas of stopband Download PDFInfo
- Publication number
- CN106876928A CN106876928A CN201510938573.3A CN201510938573A CN106876928A CN 106876928 A CN106876928 A CN 106876928A CN 201510938573 A CN201510938573 A CN 201510938573A CN 106876928 A CN106876928 A CN 106876928A
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- Prior art keywords
- stopband
- precipitous
- dual
- electromagnetic bandgap
- attenuation
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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
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
A kind of precipitous dual-attenuation UWB antennas of stopband, 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), cross type EBG electromagnetic bandgap structures (103), rice word chiasma type EBG electromagnetic bandgap structures (107), 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, stopband attenuation is improved using the circular radiation unit with Sierpinski triangle fractal structures to suppress, 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 dual-attenuation UWB antennas that a kind of stopband is precipitous, the antenna can
Problem is interfered with suppress wlan system (5.15-5.35GHz).
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 the dual-attenuation UWB antennas that a kind of stopband is precipitous, 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, Sierpinski triangles point
Shape structure (106), impedance matching are input into microstrip line (102), rice font EBG electromagnetic bandgap structures (107), cross type EBG
Electromagnetic bandgap structure (103), is formed at the metal ground plate (104) under medium substrate；The cross type EBG electromagnetic bandgap structures
Elementary cell, be square patch structure that finger-like line (1031) and broken line chi structure (1032) are constituted.
A kind of precipitous dual-attenuation UWB antennas of stopband, it is characterised in that cross 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 dual-attenuation UWB antennas of stopband, it is characterised in that cross type EBG electromagnetic bandgap structures (103)
Impedance matching input microstrip line (102) both sides are symmetrically distributed in the elementary cell of rice font EBG electromagnetic bandgap structures (107)；Per side
Respectively there are 6 elementary cells.
The precipitous dual-attenuation UWB antennas of a kind of stopband, it is characterised in that radiating element (101) is with Sierpinski tri-
The circular patch of angular fractal structure.
The precipitous dual-attenuation UWB antennas of a kind of stopband, it is characterised in that medium substrate (105) uses GML1000 materials.
The precipitous dual-attenuation UWB antennas of a kind of stopband, it is characterised in that the frequency of the stopband is kept away near 5.2GHz
Exempt to 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 cross type EBG construction unit lattice structure schematic diagrames of embodiment of the present invention 1.
Fig. 5 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 dual-attenuation UWB antennas of stopband, and the wave filter can avoid mutually dry with wlan system
Disturb.
Distance is described in more detail to invention below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of precipitous dual-attenuation UWB antennas of 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 (107), ten
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 cross 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 the criss-cross construction (1032) of elementary cell；Finger-like line (1031) and criss-cross construction
(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. precipitous dual-attenuation UWB antennas of a kind of stopband, it is characterised in that including medium substrate (105), be formed at medium substrate
On radiating element (101), Sierpinski triangles fractal structure (106), impedance matching be input into microstrip line (102),
Rice font EBG electromagnetic bandgap structures (107), cross type EBG electromagnetic bandgap structures (103), are formed at medium base
Metal ground plate (104) under plate；The elementary cell of the cross type EBG electromagnetic bandgap structures, is finger-like line
(1031) and broken line chi structure (1032) constitute square patch structure.
2. a kind of precipitous dual-attenuation UWB antennas of stopband according to claim 1, it is characterised in that cross 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 dual-attenuation UWB antennas of stopband according to claim 1, it is characterised in that cross type EBG
The elementary cell of electromagnetic bandgap structure (103) and rice font EBG electromagnetic bandgap structures (107) is symmetrically distributed in impedance
With input microstrip line (102) both sides；There are 6 elementary cells per side.
4. a kind of precipitous dual-attenuation UWB antennas of stopband according to claim 1, it is characterised in that radiating element (101)
It is the circular patch with Sierpinski triangle fractal structures.
5. a kind of precipitous dual-attenuation UWB antennas of stopband according to claim 1, it is characterised in that medium substrate (105)
Using GML1000 materials.
6. a kind of precipitous dual-attenuation UWB antennas of stopband according to claim 1, it is characterised in that the frequency of the stopband point
Not near 5.2Ghz and 6.8GHz, it is suppressed that radio ultra wide band system is to rfid system (6.8GHz), wlan system
The interference of (5.15-5.35GHz).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938573.3A CN106876928A (en) | 2015-12-10 | 2015-12-10 | A kind of precipitous dual-attenuation UWB antennas of stopband |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938573.3A CN106876928A (en) | 2015-12-10 | 2015-12-10 | A kind of precipitous dual-attenuation UWB antennas of stopband |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106876928A true CN106876928A (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510938573.3A Pending CN106876928A (en) | 2015-12-10 | 2015-12-10 | A kind of precipitous dual-attenuation UWB antennas of stopband |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112803161A (en) * | 2021-03-30 | 2021-05-14 | 网络通信与安全紫金山实验室 | Electromagnetic band gap structure for surface wave suppression and patch antenna |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104681966A (en) * | 2013-12-02 | 2015-06-03 | 哈尔滨黑石科技有限公司 | Novel attenuation band steep UWB (Ultra Wide Band) band-notch antenna |
-
2015
- 2015-12-10 CN CN201510938573.3A patent/CN106876928A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104681966A (en) * | 2013-12-02 | 2015-06-03 | 哈尔滨黑石科技有限公司 | Novel attenuation band steep UWB (Ultra Wide Band) band-notch antenna |
Non-Patent Citations (1)
| Title |
|---|
| LIN PENG ET-AL: "《UWB Band-Notched Monopole Antenna Design》", 《IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112803161A (en) * | 2021-03-30 | 2021-05-14 | 网络通信与安全紫金山实验室 | Electromagnetic band gap structure for surface wave suppression and patch antenna |
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Application publication date: 20170620 |
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