CN101345343A - Left hand material microstrip antenna with branch shaped structure of X waveband - Google Patents
Left hand material microstrip antenna with branch shaped structure of X waveband Download PDFInfo
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- CN101345343A CN101345343A CNA2007100182404A CN200710018240A CN101345343A CN 101345343 A CN101345343 A CN 101345343A CN A2007100182404 A CNA2007100182404 A CN A2007100182404A CN 200710018240 A CN200710018240 A CN 200710018240A CN 101345343 A CN101345343 A CN 101345343A
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Abstract
The invention relates to a left hand material micro-strip antenna, in particular to an X-wave range branch-shaped structure left hand material micro-strip antenna. Being different from the existing micro-strip antenna, the branch-shaped structure left hand material is loaded on the micro-strip antenna; a circuit board etching technique is adopted so as to etch the branch-shaped structure left hand material onto the micro-strip antenna substrate. The peculiar electromagnetic behavior of the branch-shaped structure left hand material is used for improving the performance of the antenna, reinforcing the forward radiation of the antenna, concentrating the directionality more and improving the gain of the antenna. The preparation method used for the branch-shaped structure left hand material of the micro-strip antenna of the invention is identical to that of the antenna, adopts the circuit board etching technique, is integrally formed with the micro-strip antenna, and has simple preparation and low cost.
Description
Technical field
The present invention relates to a kind of left-handed material microstrip antenna, particularly a kind of X-band arborization left-handed material microstrip antenna.
Background technology
Microstrip antenna is made up of much smaller than the medium substrate of wavelength and the metal patch that is etched in its both sides a thickness, utilizes coaxial line or feed microstrip line, and by paster all around and the slit between ground plate to external radiation.Microstrip antenna has that throwing face is thin, volume is little, in light weight, and planar structure easily with advantages such as carrier surfaces such as guided missile, satellite are mutually conformal, has obtained extensive use at aspects such as satellite communication, radar, remote sensing.But the design feature of microstrip antenna self has caused the gain of its antenna element low, and directivity is poor, because conductor and dielectric loss, and shortcoming such as radiation efficiency is low.The more existing technology of improving the microstrip antenna performance for example increases substrate thickness, causes the antenna heaviness like this; In addition, adopt the high dielectric constant material, dielectric loss is very big and cost is high, defines its practicality to a great extent.
In recent years, the proposition of left-handed materials was expected to be applied to aspects such as detector, stealth material, microwave device, antenna.Left-handed materials (left-handed metamaterials) is that a kind of dielectric constant and magnetic permeability are negative artificial cycle sandwich simultaneously, show many unusual optics and electromagnetic property, as negative index, perfect lens effect, unusual Doppler effect, unusual Cherenkov effect etc.The preparation of left-handed materials at present adopts clad metal wire array and split ring resonator array to realize negative permittivity and negative magnetoconductivity respectively more, promptly needs two kinds of textural associations to realize left-handed materials.
Summary of the invention
The purpose of this invention is to provide a kind of X-band arborization left-handed material microstrip antenna, shortcoming such as the radiation efficiency that can overcome traditional microstrip antenna is low, directivity is poor, gain is low.The arborization left-handed material that is used for microstrip antenna of the present invention, be different from traditional left-handed materials of forming by split ring resonator and two kinds of structures of metal wire, it only is made up of a kind of construction unit is dendritic structure, can realize negative permittivity and negative magnetoconductivity simultaneously.Pass through design of Structural Parameters, make the left hand behavior of dendritic structure be positioned at the central task frequency of microstrip antenna, the present invention loads on arborization left-handed material on the microstrip aerial substrate, utilize the peculiar electromagnetic behavior of arborization left-handed material, can make the directivity of antenna more concentrated, can improve antenna gain, improve antenna performance.The arborization left-handed material that is used for microstrip antenna is the same with the preparation method of antenna, all adopts printed circuit board manufacturing process, and is one-body molded with microstrip antenna, and preparation is simple, and is with low cost.
Description of drawings
Fig. 1 arborization left-handed material construction unit of the present invention schematic diagram
The arborization left-handed material microstrip antenna structural representation of Fig. 2 embodiment of the invention one
The microwave transmission curve of the arborization left-handed material of Fig. 3 embodiment of the invention one
The return loss plot of the arborization left-handed material microstrip antenna of Fig. 4 embodiment of the invention one
The far-field pattern of the arborization left-handed material microstrip antenna of Fig. 5 embodiment of the invention one (E face)
The far-field pattern of the arborization left-handed material microstrip antenna of Fig. 6 embodiment of the invention one (H face)
The microwave transmission curve of the arborization left-handed material of Fig. 7 embodiment of the invention two
The return loss plot of the arborization left-handed material microstrip antenna of Fig. 8 embodiment of the invention two
The arborization left-handed material microstrip antenna battle array structural front view of Fig. 9 embodiment of the invention three
Embodiment
Adopt the circuit board lithographic technique to prepare arborization left-handed material microstrip antenna, selecting thickness for use is the medium substrate of the polytetrafluoroethylmaterial material of 0.8mm～2mm as antenna, in the metal radiation patch of its one side etching definite shape, another side is entirely metal, as the antenna ground plate.Adopt coaxial feed, the SMA coaxial fitting connects metal radiation fin and metal ground plate, and as the signal feed-in source of antenna.The Metal tree dendritic morphology cell array of etching periodic arrangement is prepared into arborization left-handed material microstrip antenna on the blank medium substrate around the radiation patch.The branch therefrom branch length at different levels of mind-set periphery is respectively: one-level branch length a=1.2mm～2.5mm, and secondary branch length b=0.8mm～1.8mm, three grades of length c=0.6mm～1mm of branch face mutually that angle is θ between two one-level branches
1=15 °～75 °, face mutually that angle is θ between two secondary branches
2=15 °～75 °, face mutually that angle is θ between two three grades of branches
3=15 °～75 °, the live width of metal branch is w=0.1mm～1mm, elementary cell constant d=6mm～15mm, all metal thickness t=0.02mm～0.05mm.Fig. 1 is the construction unit of arborization left-handed material.
The performance of implementation procedure of the present invention and material is by embodiment and description of drawings:
Embodiment one:
Adopt the circuit board lithographic technique, making the central task frequency is the arborization left-handed material microstrip antenna of 10GHz, as shown in Figure 2.Selecting area for use is 70mm * 70mm, thickness is the medium substrate 1 of the polytetrafluoroethylmaterial material (ε=2.65) of 1.5mm as antenna, the size of the metallic copper radiation patch 2 of medium substrate 1 one sides is 7.9mm * 7.9mm, another side is entirely metallic copper, as ground plate 3, adopt coaxial feed, coaxial 4 joints of SMA connect metal radiation fin 2 and metal ground plate 3, and as the signal feed-in source of antenna.Etching periodic arrangement metallic copper branch shape structural unit array 5 around radiation patch, for the present embodiment operating frequency is the microstrip antenna of 10GHz, the physical dimension of dendritic structure is: one-level branch length a=2.2mm, secondary branch length b=1.4mm, three grades of length c=1mm of branch face mutually that angle is θ between two one-level branches
1=45 °, face mutually that angle is θ between two secondary branches
2=45 °, face mutually that angle is θ between two three grades of branches
3=45 °, all metal branch live widths are w=0.3mm, lattice constant d=9.3mm, metal thickness t=0.02mm.Be used for the present embodiment antenna arborization left-handed material microwave transmission respondent behavior curve as shown in Figure 3, the left-hand transmission zone is positioned at 9.08GHz～10.28GHz, comprises the central task frequency 10GHz of antenna.Fig. 4 is the return loss plot of present embodiment arborization left-handed material microstrip antenna, at 10.04GHz, and S
11Peak value be-23.5dB.Fig. 5, Fig. 6 are respectively the E face and the H face far-field patterns of present embodiment arborization left-handed material microstrip antenna.
Embodiment two:
Similar to embodiment one, adopting the circuit board lithographic technique to make the central task frequency is the arborization left-handed material microstrip antenna of 11GHz.Selecting area for use is 65mm * 65mm, thickness is the medium substrate of the polytetrafluoroethylmaterial material (ε=2.65) of 0.8mm as antenna, the metal radiation patch size of medium substrate one side is 7.3mm * 7.3mm, another side is entirely metal, as the antenna ground plate, adopt coaxial feed, the SMA coaxial fitting connects metal radiation fin and metal ground plate, and as the signal feed-in source of antenna.The Metal tree dendritic morphology cell array of etching periodic arrangement around radiation patch.For the present embodiment operating frequency is the microstrip antenna of 11GHz, and the physical dimension of dendritic structure is: one-level branch length a=1.9mm, and secondary branch length b=1.1mm, three grades of length c=0.9mm of branch face mutually that angle is θ between two one-level branches
1=40 °, face mutually that angle is θ between two secondary branches
2=40 °, face mutually that angle is θ between two three grades of branches
3=40 °, the live width of all metal branches is w=0.5mm, lattice constant d=8.5mm, metal thickness t=0.04mm.Be used for the present embodiment antenna arborization left-handed material microwave transmission respondent behavior curve as shown in Figure 7, the left-hand transmission zone is positioned at 10GHz～11.3GHz, comprises the central task frequency 11GHz of antenna.The return loss plot of present embodiment arborization left-handed material microstrip antenna as shown in Figure 8.
Embodiment three:
Adopt the circuit board lithographic technique to make the arborization left-handed material microstrip antenna battle array, Fig. 9 is that the central task frequency of making is the four paster arborization left-handed material microstrip antenna battle arrays of 10GHz.At thickness is the one side etching metal radiation patch array element 2 of the PTFE medium substrate 1 (ε=2.65) of 2mm, and another side is entirely metal, as antenna ground plate 3.Utilize the microstrip transmission line feed, 4 is feeder line.Etching Metal tree dendritic morphology cell array 5 around radiation patch, the used arborization left-handed material of present embodiment is identical with embodiment one, its physical dimension is: one-level branch length a=2.2mm, secondary branch length b=1.4mm, three grades of length c=1mm of branch face mutually that angle is θ between two one-level branches
1=45 °, face mutually that angle is θ between two secondary branches
2=45 °, face mutually that angle is θ between two three grades of branches
3=45 °, the live width of all metal branches is w=0.3mm, lattice constant d=9.3mm, all metal thickness t=0.02mm.
The above, only be the preferred embodiments of the present invention, when not limiting scope of the invention process with this, promptly the simple equivalent of being done according to claim of the present invention and description of the invention content generally changes and modifies, and all should still belong in the scope of patent covering of the present invention.
Claims (4)
1. X-band arborization left-handed material microstrip antenna, its principal character is the Metal tree dendritic morphology cell array of etching periodic arrangement on the medium substrate of microstrip antenna.
2. X-band arborization left-handed material microstrip antenna as claimed in claim 1, the construction unit geometric parameter that it is characterized in that being used for the metal arborization left-handed material of microstrip antenna is: one-level branch length a=1.2mm～2.5mm, secondary branch length b=0.8mm～1.8mm, three grades of length c=0.6mm～1mm of branch face mutually that angle is θ between two one-level branches
1=15 °～75 °, face mutually that angle is θ between two secondary branches
2=15 °～75 °, face mutually that angle is θ between two three grades of branches
3=15 °～75 °, the live width of all metal branches is w=0.1mm～1mm.
3. X-band arborization left-handed material microstrip antenna as claimed in claim 1 is characterized in that Metal tree dendritic morphology elementary cell constant d=6mm～15mm, metal thickness t=0.02mm～0.05mm.
4. X-band arborization left-handed material microstrip antenna as claimed in claim 1 is characterized in that the used medium substrate is that thickness is the polytetrafluoroethylmaterial material (ε=2.65) of 0.8mm～2mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100182404A CN101345343A (en) | 2007-07-11 | 2007-07-11 | Left hand material microstrip antenna with branch shaped structure of X waveband |
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| CNA2007100182404A CN101345343A (en) | 2007-07-11 | 2007-07-11 | Left hand material microstrip antenna with branch shaped structure of X waveband |
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| CN101345343A true CN101345343A (en) | 2009-01-14 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888022A (en) * | 2009-05-13 | 2010-11-17 | 西北工业大学 | Complete absorbing material-based X-waveband microstrip antenna |
| CN102110891A (en) * | 2009-12-23 | 2011-06-29 | 西北工业大学 | S-band micro-strip antenna with substrate made of completely-absorbing meta-material |
| WO2013029327A1 (en) * | 2011-08-31 | 2013-03-07 | 深圳光启高等理工研究院 | Base station antenna |
| WO2013044619A1 (en) * | 2011-09-29 | 2013-04-04 | 深圳光启高等理工研究院 | Speaker antenna |
| CN103066395A (en) * | 2011-10-20 | 2013-04-24 | 西北工业大学 | Low radar cross section (RCS) microstrip antenna based on complete absorber |
| CN103094691A (en) * | 2011-10-28 | 2013-05-08 | 深圳光启高等理工研究院 | Horn antenna |
| CN103094701A (en) * | 2011-10-28 | 2013-05-08 | 深圳光启高等理工研究院 | Flat plate lens and lens antenna with the same |
| CN104681927A (en) * | 2013-11-27 | 2015-06-03 | 深圳光启创新技术有限公司 | Antenna |
| CN107634319A (en) * | 2016-07-19 | 2018-01-26 | 电子科技大学 | Microstrip antenna based on three-dimensional metamaterial structure |
| CN110729549A (en) * | 2019-10-29 | 2020-01-24 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN111541003A (en) * | 2020-06-18 | 2020-08-14 | 天津理工大学 | Flexible antenna sensor for wearable equipment |
-
2007
- 2007-07-11 CN CNA2007100182404A patent/CN101345343A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888022A (en) * | 2009-05-13 | 2010-11-17 | 西北工业大学 | Complete absorbing material-based X-waveband microstrip antenna |
| CN102110891A (en) * | 2009-12-23 | 2011-06-29 | 西北工业大学 | S-band micro-strip antenna with substrate made of completely-absorbing meta-material |
| WO2013029327A1 (en) * | 2011-08-31 | 2013-03-07 | 深圳光启高等理工研究院 | Base station antenna |
| WO2013044619A1 (en) * | 2011-09-29 | 2013-04-04 | 深圳光启高等理工研究院 | Speaker antenna |
| CN103066395B (en) * | 2011-10-20 | 2016-01-20 | 西北工业大学 | Based on the low RCS microstrip antenna of complete absorber |
| CN103066395A (en) * | 2011-10-20 | 2013-04-24 | 西北工业大学 | Low radar cross section (RCS) microstrip antenna based on complete absorber |
| CN103094691A (en) * | 2011-10-28 | 2013-05-08 | 深圳光启高等理工研究院 | Horn antenna |
| CN103094701A (en) * | 2011-10-28 | 2013-05-08 | 深圳光启高等理工研究院 | Flat plate lens and lens antenna with the same |
| CN103094701B (en) * | 2011-10-28 | 2015-12-16 | 深圳光启高等理工研究院 | A kind of flat-plate lens and there is the lens antenna of these lens |
| CN103094691B (en) * | 2011-10-28 | 2016-09-28 | 深圳光启高等理工研究院 | A kind of electromagnetic horn |
| CN104681927A (en) * | 2013-11-27 | 2015-06-03 | 深圳光启创新技术有限公司 | Antenna |
| CN107634319A (en) * | 2016-07-19 | 2018-01-26 | 电子科技大学 | Microstrip antenna based on three-dimensional metamaterial structure |
| CN110729549A (en) * | 2019-10-29 | 2020-01-24 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN111541003A (en) * | 2020-06-18 | 2020-08-14 | 天津理工大学 | Flexible antenna sensor for wearable equipment |
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Application publication date: 20090114 |