CN103996899B - Cross gap paster antenna based on complementation division resonant ring - Google Patents
Cross gap paster antenna based on complementation division resonant ring Download PDFInfo
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- CN103996899B CN103996899B CN201410232081.8A CN201410232081A CN103996899B CN 103996899 B CN103996899 B CN 103996899B CN 201410232081 A CN201410232081 A CN 201410232081A CN 103996899 B CN103996899 B CN 103996899B
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Abstract
The present invention relates to patch antenna design field, for providing the Novel patch antenna of a miniaturisation high-performance.For this, the present invention adopts the technical scheme that, cross gap paster antenna based on complementation division resonant ring, to dig the circular patch of cross defect and with the semicircular ring of the band assistant of this circular patch concentric as radiation patch, radiation patch is placed on FR4 medium substrate, stretch out in the middle part of semicircular ring formation rectangle feeder line, and radiation patch is connected with feeding network by feeder line；Complementary division resonant ring is carried coaxial metal ring jaggy to constitute by two, two breach are in a straight line with the center of circle and are respectively in both sides, the center of circle, feeder line lays respectively at medium substrate two sides with complementary division resonant ring, complementary division resonant ring is positioned at immediately below feeder line, feeder line and complementary division resonant ring composition feeding network.Present invention is mainly applied to patch antenna design.
Description
Technical field
The present invention relates to patch antenna design field, particularly to cross gap paster antenna based on complementation division resonant ring.
Technical background
Nineteen fifty, some scientific researches scholar finds, negative magnetoconductivity can be by the structure of difform ring or similar annular at specific frequency
Realize in section, and this discovery is used for manufacturing the chiral material of microwave frequency band.1999, J.B.Pendry et al. formally carry
Gone out and can produce magnetopasma effect in some frequency range, and the open-circuit current ring resonator of negative magnetoconductivity characteristic can have been realized, i.e. I
Division resonant ring described in and complementary division resonant ring.
Complementary division resonant ring structure can realize left hand characteristic in some frequency range, i.e. when electromagnetic wave is propagated in this transmission line,
In certain frequency range, its effective dielectric constant and equivalent permeability are that negative value, i.e. electric field, magnetic field, wave vector defer to a left side simultaneously
Hand rule.It has been developed as a novel example in electromagnetic arts at present, and has in following microwave equipment research
Immeasurable potentiality.
Complementary division resonant ring not only has extremely important answering in making reverse guide directional coupler and electromagnetic wave stealth
With, and it also plays irreplaceable effect in the manufacture of microwave antenna and wave filter, the application of this structure effectively solves
The difficulty of the microwave regime such as contradiction between microwave device miniaturization and high-performance and the technical barrier of antenna high directivity design
Miscellaneous diseases.
Summary of the invention
For overcoming the deficiencies in the prior art, it is provided that the Novel patch antenna of a miniaturisation high-performance.To this end, what the present invention taked
Technical scheme is, based on complementation division resonant ring cross gap paster antenna, with dig cross defect circular patch and with
The semicircular ring of the band assistant of this circular patch concentric is as radiation patch, and radiation patch is placed on FR4 medium substrate, semicircular ring
Middle part stretches out and forms rectangle feeder line, and radiation patch is connected with feeding network by feeder line；Complementary division resonant ring is by two
Carrying coaxial metal ring jaggy to constitute, two breach are in a straight line with the center of circle and are respectively in both sides, the center of circle, and feeder line is with mutual
Mending division resonant ring and lay respectively at medium substrate two sides, complementary division resonant ring is positioned at immediately below feeder line, and feeder line is humorous with complementary division
The ring that shakes composition feeding network.
Substrate dielectric constant ε=4.4, thickness is 1.6mm；Circular patch radius R1=3.5mm, the semicircular ring inside radius of band assistant
R2=3.7mm, outer radius R3=4.2mm, the decussate texture width W1=0.5mm of etching, length L2=3mm, L3=4.2mm；
Annulus inside radius R4=1.6mm in the complementation of etching is divided in resonant ring structure on earth plate, outer radius R5=1.8mm, outer toroid
Inside radius R6=2.1mm, fracture width W3=0.2mm.
The feeder line of circular patch and 50 Ω is connected, feeder line width W2=2mm, length L4=7mm.Feeder line is affixed on medium substrate
Upper surface.Now the mid frequency of Antenna Operation is 3.15GHz, carries a width of 3.05-3.42GHz.
Compared with the prior art, the technical characterstic of the present invention and effect:
First, the semicircular ring of typical circular with band assistant is combined and collectively forms radiation patch, and by circular radiation paster
Upper etching cross gap carrys out spreading antenna bandwidth, improves antenna radiation efficiency；Second, resonant ring is divided in complementation and is etched in feeder line
Lower section, makes a part for feeding network, to improve the impedance matching between source and radiation patch；3rd, novel structure,
Antenna volume is little.
Accompanying drawing explanation
Fig. 1 cross gap patch-antenna structure schematic diagram based on complementation division resonant ring.
Fig. 2 etches antenna S11 parameter curve before and after cross gap.
Fig. 3 loads antenna top surface current scattergram before and after resonant ring resonant ring is divided in complementation, and (left side is humorous for not loading complementary division
Shake ring, and right side is for loading complementation division resonant ring).
Fig. 4 antenna model figure and pictorial diagram (left side is top view, and right side is upward view), in figure, (a) illustraton of model, (b) is real
Thing figure.
Detailed description of the invention
The present invention utilizes complementary division resonant ring structure, and changes antenna radiation unit structure, devises a kind of Novel miniaturization patch
Chip antenna.
The method using complementation division resonant ring to combine with paster antenna, designs cross gap patch based on complementation division resonant ring
Chip antenna, shown in modeling schematic diagram such as Fig. 1 and Fig. 4 (a).
This antenna port load impedance is 50 Ω, using the semicircular ring of the circle and band assistant that dig cross defect as radiation patch,
It being connected with feeding network, and will be integrally placed on the FR4 epoxy plate medium substrate that size is 16mm × 14mm, substrate is situated between
Electric constant ε=4.4, thickness is 1.6mm.It addition, be loaded with complementary division resonant ring structure on earth plate, complementary division is humorous
The ring that shakes is positioned at immediately below feeder line, in order to improve the impedance matching between source and radiation patch.
To realize spreading bandwidth, the purpose of antenna radiation efficiency, Fig. 2 is improved by etching cross gap in radiation patch
For antenna return loss before and after etching cross gap with frequency variation diagram.
The material of radiation patch is metallic copper, and feeder line structure is just in medium substrate and is connected above semicircular ring rectangular of band assistant
Shape, feeder line together constitutes feeding network with complementary division resonant ring below, and complementary division resonant ring is just being positioned at positive and negative
Lower section, with feeder line not at the homonymy of medium substrate.
Last loading complementation division resonant ring on earth plate, Fig. 3 shows that upper antenna surface before and after resonant ring is divided in addition complementation
Current distributing figure, it can be seen that complementary division resonant ring significantly improves the impedance matching between source and radiating element, improves
The radiance of antenna.
The method using complementation division resonant ring to combine with paster antenna, designs cross gap patch based on complementation division resonant ring
Chip antenna.Shown in antenna pictorial diagram such as Fig. 4 (b), the substrate dielectric constant of employing is 4.4, and antenna size is 16mm × 14mm
×1.6mm。
This antenna port load impedance is 50 Ω, using the semicircular ring of the circle and band assistant that dig cross defect as radiation patch,
It being connected with feeding network, and etched complementary division resonant ring structure on earth plate, complementary division resonant ring is positioned at feeder line
Underface, in order to improve the impedance matching between source and radiation patch.
Eventually through etching cross in radiation patch, and the method loading complementation division resonant ring in feeding network devises
The Novel patch antenna of a miniaturisation high-performance.
By antenna being optimized design and simulation analysis, finally obtain the optimized dimensions of antenna.Wherein circular patch radius
R1=3.5mm, the semicircular ring inside radius R2=3.7mm of band assistant, outer radius R3=4.2mm, assistant length L1, the ten of etching
Character form structure width W1=0.5mm, length L2=3mm, L3=4.2mm.The complementary division resonant ring structure of etching on earth plate
Annulus inside radius R4=1.6mm in, outer radius R5=1.8mm, outer toroid inside radius R6=2.1mm, fracture width W3=0.2mm.
Half ring-like feed tab of this aerial band assistant is connected with the microstrip line of 50 Ω, feeder line width W2=2mm, length L4=7mm.Micro-
Ribbon feeder is affixed on the upper surface of medium substrate.Now the mid frequency of Antenna Operation is 3.15GHz, carries a width of 3.05-3.42GHz.
Being not difficult to find out by Fig. 2, after etching cross gap, the beamwidth of antenna is extended to 3.05-3.42GHz by 3.1-3.3GHz, in
S11 value at frequency of heart is dropped to-50.5dB by-20dB, it is achieved that by etching cross gap spreading bandwidth, improve sky
The purpose of beta radiation efficiency.Fig. 3, then demonstrate and complementation divided a resonant ring part as antenna feeding network, Ke Yishi
The now effect of impedance matching between regulation source and radiation patch.
Circular patch is with semicircular ring without being connected, and centre is the gap of annular, works in microwave band.Semicircular ring phase direct with feeder line
Even, across dielectric layer (FR4, they lay respectively at the upper and lower surface of FR4) between feeder line and complementary division resonant ring, it is not attached to.
Feeder line together constitutes feeding network with complementary division resonant ring.
Claims (2)
1. a cross gap paster antenna based on complementation division resonant ring, is characterized in that, to dig the circular patch of cross defect
With with the semicircular ring of the band assistant of this circular patch concentric as radiation patch, radiation patch is placed on FR4 medium substrate,
Stretch out in the middle part of semicircular ring formation rectangle feeder line, and radiation patch is connected with feeding network by feeder line；Complementary division resonance
Ring is carried coaxial metal ring jaggy to constitute by two, and two breach are in a straight line with the center of circle and are respectively in the center of circle two
Side, feeder line lays respectively at medium substrate two sides with complementary division resonant ring, and complementation is divided resonant ring and is positioned at immediately below feeder line, feedback
Line and complementary division resonant ring composition feeding network；Wherein, substrate dielectric constant ε=4.4, thickness is 1.6mm；Circular patch
Sheet radius R1=3.5mm, the semicircular ring inside radius R2=3.7mm of band assistant, outer radius R3=4.2mm, the cross of etching
Structure width W1=0.5mm, length L2=3mm, L3=4.2mm；The complementary division resonant ring structure of etching on earth plate
Annulus inside radius R4=1.6mm in, outer radius R5=1.8mm, outer toroid inside radius R6=2.1mm, fracture width
W3=0.2mm.
2. as claimed in claim 1 cross gap paster antenna based on complementation division resonant ring, is characterized in that, circular patch with
The feeder line of 50 Ω is connected, feeder line width W2=2mm, length L4=7mm, and feeder line is affixed on the upper surface of medium substrate, now
The mid frequency of Antenna Operation is 3.15GHz, carries a width of 3.05-3.42GHz.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410232081.8A CN103996899B (en) | 2014-05-28 | 2014-05-28 | Cross gap paster antenna based on complementation division resonant ring |
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| CN201410232081.8A CN103996899B (en) | 2014-05-28 | 2014-05-28 | Cross gap paster antenna based on complementation division resonant ring |
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| CN103996899B true CN103996899B (en) | 2016-09-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106450710A (en) * | 2015-08-04 | 2017-02-22 | 中兴通讯股份有限公司 | Broadband antenna |
| CN109994818A (en) * | 2019-03-07 | 2019-07-09 | 成都天锐星通科技有限公司 | A kind of wideband phased array antenna |
| CN113889754B (en) * | 2021-09-29 | 2023-12-19 | 重庆大学 | Compact single-layer differential feed filtering transparent antenna |
| CN114156645B (en) * | 2022-02-10 | 2022-04-22 | 北京理工大学前沿技术研究院 | Novel Beidou slot RDSS antenna and etching method |
| CN114927868B (en) * | 2022-06-16 | 2023-08-18 | 南通大学 | Bidirectional radiation filtering antenna |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203056052U (en) * | 2012-12-05 | 2013-07-10 | 哈尔滨飞羽科技有限公司 | Novel multifunctional antenna filter |
| CN103280616A (en) * | 2013-05-10 | 2013-09-04 | 南京信息工程大学 | Double-passband filter with left-hand performance |
| CN103700910A (en) * | 2014-01-08 | 2014-04-02 | 西南大学 | Complementary opening resonance ring and defect ground structure half module substrate integrated waveguide dual-band filter |
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2014
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203056052U (en) * | 2012-12-05 | 2013-07-10 | 哈尔滨飞羽科技有限公司 | Novel multifunctional antenna filter |
| CN103280616A (en) * | 2013-05-10 | 2013-09-04 | 南京信息工程大学 | Double-passband filter with left-hand performance |
| CN103700910A (en) * | 2014-01-08 | 2014-04-02 | 西南大学 | Complementary opening resonance ring and defect ground structure half module substrate integrated waveguide dual-band filter |
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