CN1690829A - Tunable microwave left-hand material - Google Patents
Tunable microwave left-hand material Download PDFInfo
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- CN1690829A CN1690829A CN 200410026062 CN200410026062A CN1690829A CN 1690829 A CN1690829 A CN 1690829A CN 200410026062 CN200410026062 CN 200410026062 CN 200410026062 A CN200410026062 A CN 200410026062A CN 1690829 A CN1690829 A CN 1690829A
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Abstract
The present invention relates to microwave left-chiral material, especially with transmission bandwidth, frequency and strength adjustable. Compared with other materials, in this invention, use combination of metal hexagon opening resonance ring group of certain size and structure cell array of metal wire as basis; bring defect resonance ring with different geometric parameters of in and out rings to form plane distribution of resonance ring group on basis resonance ring array, then obtain objective material. The microwave transmission testing of the material shows that for left-chiral material, its transmission bandwidth achieves 740MHZ~1200MHZ, frequency of transmission peak can be adjusted between range of 9750MHZ~10210MHZ, and the strength of transmission peak varieties between -29dB~-39dB.
Description
Technical field the present invention relates to a kind of left-handed materials, particularly a kind of transmission bandwidth, transmission peaks frequency and the tunable microwave left-hand material of intensity.
Background technology left-handed materials (left-handed metamaterials) is the non-existent artificial composite structure material of a kind of occurring in nature, specific inductive capacity and magnetic permeability are simultaneously for negative in a certain frequency range, the electromagnetic phase velocity of Chuan Boing is opposite with the group velocity direction therein, thereby present the optical characteristics of many novelties, as unusual Doppler effect, unusual Cherenkov effect, perfect lens effect, negative refraction etc.Thereby there is important use be worth in fields such as wireless communication, hypersensitization sensor, diagnosis imagings.The split ring resonator (SRRs) of the realization negative magnetoconductivity that present researcher is designed mostly is circular and square; The microwave electromagnetic resonance behavior of material, promptly its microwave transmission bandwidth, transmission peaks frequency and intensity are unadjustable, and this has brought significant limitation for its practical application.
Summary of the invention the purpose of this invention is to provide a kind of tunable microwave left-hand material, and its structural unit is the combination of metal hexagonal apertures resonant ring group and metal wire.Identical geometric parameter structural unit constitutes the substrate left-handed materials according to certain cycle, by the substrate resonant ring in some structural unit being replaced with the defective resonant ring of various geometric, obtain microwave transmission bandwidth, transmission peaks frequency and the tunable microwave left-hand material of intensity.
Description of drawings
Fig. 1 wall scroll tunable microwave left-handed materials sample.
Fig. 2 substrate resonant ring is SRRs (d
1/ d
2=1.0/2.2mm), point defect is respectively room, SRRs (d
1/ d
2=1.0/2.0mm) and SRRs (d
1/ d
2=1.0/2.4mm) the microwave transmission curve of microwave left-hand material.
Fig. 3 substrate resonant ring is SRRs (d
1/ d
2=1.0/2.2mm), line defect I is respectively room, SRRs (d
1/ d
2=1.0/2.0mm), SRRs (d
1/ d
2=1.0/2.4mm) and SRRs (d
1/ d
2=1.0/2.6mm) the microwave transmission curve of microwave left-hand material.
Fig. 4 substrate resonant ring is SRRs (d
1/ d
2=1.0/2.2mm), line defect II is respectively room, SRRs (d
1/ d
2=1.0/2.0mm) and SRRs (d
1/ d
2=1.0/2.4mm) the microwave transmission curve of microwave left-hand material.
Fig. 5 substrate resonant ring is SRRs (d
1/ d
2=1.0/2.2mm), line defect III is respectively room, SRRs (d
1/ d
2=1.0/2.0mm), SRRs (d
1/ d
2=1.0/2.4mm) and SRRs (d
1/ d
2=1.0/2.6mm) the microwave transmission curve of microwave left-hand material.
Embodiment adopts the circuit board lithographic technique, at thickness is to etch base metal copper split ring resonator array on the epoxy novolac glass fibre PCB substrate one side of 0.8mm; This array is a column direction with inner and outer ring opening line direction, and its vertical direction is a line direction, and column direction resonant ring center distance is 2.7～3.7mm, and line direction resonant ring center distance is 3.0～10.0mm; The inscribed circle diameter of ring is 1.0～1.5mm in the substrate resonant ring, and the inscribed circle diameter of outer shroud is 2.0～3.3mm, opening g=0.1～0.5mm, and live width is c=0.1～0.5mm, resonant ring thickness is 0.01～0.03mm; Etch parallel metal copper cash array at PCB substrate another side, its center distance is 3.0～10.0mm, and length is 0.6～10.0mm, and live width is 0.1～0.5mm, and thickness is 0.01～0.03mm; Form the resonant ring group along the several substrate resonant rings of column direction, with structural unit of the common composition of the copper lines of PCB substrate another side; With the cutting of prepared metallic copper structural unit array, become the list structure that comprises a plurality of structural units, and be 1～10 parallel and equidistant arrangement strip PCB substrate with the bar number, make the substrate microwave left-hand material; Substrate resonant ring in some structural unit is replaced with the defective resonant ring of room or different geometrical size, the inscribed circle diameter of ring is 0mm～1.5mm in the defective resonant ring, the inscribed circle diameter of outer shroud is 0mm～3.3mm, aperture pitch is 0.05mm～0.7mm, live width is 0.1mm～0.5mm, thickness is 0.01～0.03mm, makes the microwave left-hand material of defective regulation and control microwave transmission bandwidth, transmission peaks frequency and intensity.
The performance of implementation procedure of the present invention and material is by embodiment and description of drawings:
Embodiment one:
Adopting the circuit board lithographic technique, is to etch base metal copper split ring resonator array on the epoxy novolac glass fibre PCB substrate one side of 0.8mm at thickness; This array is a column direction with inner and outer ring opening line direction, and its vertical direction is a line direction, and column direction resonant ring center distance is 3.3mm, and line direction resonant ring center distance is 7.0mm; The inscribed circle diameter of substrate resonant ring inner and outer ring is respectively 1.0mm and 2.2mm, opening g=0.3mm, and live width is c=0.3mm, resonant ring thickness is 0.02mm; Etch parallel metal copper cash array at PCB substrate another side, its center distance is 7.0mm, and length is 9.9mm, and live width is 0.5mm, and thickness is 0.02mm; Form the resonant ring group along three substrate resonant rings of column direction, with structural unit of the common composition of the copper lines of PCB substrate another side; With prepared metallic copper structural unit array cutting, become the list structure that comprises 7 structural units, with 3 parallel and equidistant 7mm arrangements of PCB substrate, make the substrate microwave left-hand material; With middle 0.3mm, live width is 0.3mm, makes the microwave left-hand material of point defect regulation and control microwave transmission bandwidth, transmission peaks frequency and intensity.The microwave transmission curve of sample as shown in Figure 2.
Embodiment two:
Adopting the circuit board lithographic technique, is to etch base metal copper split ring resonator array on the epoxy novolac glass fibre PCB substrate one side of 0.8mm at thickness; This array is a column direction with inner and outer ring opening line direction, and its vertical direction is a line direction, and column direction resonant ring center distance is 3.3mm, and line direction resonant ring center distance is 7.0mm; The inscribed circle diameter of substrate resonant ring inner and outer ring is respectively 1.0mm and 2.2mm, opening g=0.3mm, and live width is c=0.3mm, resonant ring thickness is 0.02mm; Etch parallel metal copper cash array at PCB substrate another side, its center distance is 7.0mm, and length is 9.9mm, and live width is 0.5mm, and thickness is 0.02mm; Form the resonant ring group along three substrate resonant rings of column direction, with structural unit of the common composition of the copper lines of PCB substrate another side; With prepared metallic copper structural unit array cutting, become the list structure that comprises 7 structural units, with 3 parallel and equidistant 7mm arrangements of PCB substrate, make the substrate microwave left-hand material; Substrate resonant ring in the middle part of the division center unit of every PCB substrate is replaced formation line defect I with the defective resonant ring of room or different geometrical size, the interior ring inscribed circle diameter of defective resonant ring is 1.0mm, the outer shroud inscribed circle diameter is respectively 2.0mm, 2.4mm and 2.6mm, aperture pitch is 0.3mm, live width is 0.3mm, makes the microwave left-hand material of line defect I regulation and control microwave transmission bandwidth, transmission peaks frequency and intensity.The microwave transmission curve of sample as shown in Figure 3.
Embodiment three:
Adopting the circuit board lithographic technique, is to etch base metal copper split ring resonator array on the epoxy novolac glass fibre PCB substrate one side of 0.8mm at thickness; This array is a column direction with inner and outer ring opening line direction, and its vertical direction is a line direction, and column direction resonant ring center distance is 3.3mm, and line direction resonant ring center distance is 7.0mm; The inscribed circle diameter of inner and outer ring is respectively 1.0mm and 2.2mm, opening g=0.3mm, and live width is c=0.3mm, resonant ring thickness is 0.02mm; Etch parallel metal copper cash array at PCB substrate another side, its center distance is 7.0mm, and length is 9.9mm, and live width is 0.5mm, and thickness is 0.02mm; Form the resonant ring group along three substrate resonant rings of column direction, with structural unit of the common composition of the copper lines of PCB substrate another side; With prepared metallic copper structural unit array cutting, become the list structure that comprises 7 structural units, with 3 parallel and equidistant 7mm arrangements of PCB substrate, make the substrate microwave left-hand material; Three substrate resonant rings in division center unit of central strip PCB substrate are replaced formation line defect II with the defective resonant ring of room or different geometrical size, the interior ring inscribed circle diameter of defective resonant ring is 1.0mm, the outer shroud inscribed circle diameter is respectively 2.0mm and 2.4mm, aperture pitch is 0.3mm, live width is 0.3mm, makes the microwave left-hand material of line defect II regulation and control microwave transmission bandwidth, transmission peaks frequency and intensity.The microwave transmission curve of sample as shown in Figure 4.
Embodiment four:
Adopting the circuit board lithographic technique, is to etch base metal copper split ring resonator array on the epoxy novolac glass fibre PCB substrate one side of 0.8mm at thickness; This array is a column direction with inner and outer ring opening line direction, and its vertical direction is a line direction, and column direction resonant ring center distance is 3.3mm, and line direction resonant ring center distance is 7.0mm; The inscribed circle diameter of substrate resonant ring inner and outer ring is respectively 1.0mm and 2.2mm, opening g=0.3mm, and live width is c=0.3mm, resonant ring thickness is 0.02mm; Etch parallel metal copper cash array at PCB substrate another side, its center distance is 7.0mm, and length is 9.9mm, and live width is 0.5mm, and thickness is 0.02mm; Form the resonant ring group along three substrate resonant rings of column direction, with structural unit of the common composition of the copper lines of PCB substrate another side; With prepared metallic copper structural unit array cutting, become the list structure that comprises 7 structural units, with 3 parallel and equidistant 7mm arrangements of PCB substrate, make the substrate microwave left-hand material; Formation line defect III is replaced with the defective resonant ring of room or different geometrical size in the center of central strip PCB substrate and the substrate resonant ring at adjacent two structural units middle part thereof, the interior ring inscribed circle diameter of defective resonant ring is 1.0mm, the outer shroud inscribed circle diameter is respectively 2.0mm, 2.4mm and 2.6mm, aperture pitch is 0.3mm, live width is 0.3mm, makes the microwave left-hand material that constitutes line defect III regulation and control microwave transmission bandwidth, transmission peaks frequency and intensity.The microwave transmission curve of sample as shown in Figure 5.
Claims (5)
1. the structural unit of this material of tunable microwave left-handed materials is made up of metal openings resonant ring group and metal wire, they lay respectively at epoxy novolac glass mat two surfaces, its principal character is: introduce the defective resonant ring in the substrate split ring resonator, realized the Modulatory character of transmission bandwidth, transmission peaks frequency and the transmission peaks intensity of left-handed materials by the change of defective resonant ring geometric parameter.
2. tunable microwave left-handed materials according to claim 1, it is characterized in that the base metal split ring resonator is a regular hexagon, the inscribed circle diameter of interior ring is 0.6mm～1.5mm, the inscribed circle diameter of outer shroud is 2.0mm～3.3mm, aperture pitch is 0.1mm～0.5mm, live width is 0.1mm～0.5mm, and resonant ring thickness is 0.01mm～0.03mm.
3. tunable microwave left-handed materials according to claim 1, the interior ring inscribed circle diameter that it is characterized in that the defective resonant ring is 0mm～1.5mm, the outer shroud inscribed circle diameter is 0mm～3.3mm, aperture pitch is 0.05mm～0.7mm, live width is 0.1mm～0.5mm, and resonant ring thickness is 0.01mm～0.03mm.
4. tunable microwave left-handed materials according to claim 1, the length that it is characterized in that metal wire is 0.6～10.0mm, and live width is 0.1mm～1.6mm, and thickness is 0.01mm～0.03mm.
5. tunable microwave left-handed materials according to claim 1 is characterized in that preparation process comprises following step:
(1) adopts the circuit board lithographic technique, at thickness is to etch metallic copper split ring resonator and copper lines structural unit array respectively on 0.3～1.2mm epoxy novolac glass fibre PCB substrate, two surfaces, the direction that this array is determined with inner and outer ring opening line is a column direction, its vertical direction is a line direction, column direction resonant ring center distance is 2.7～3.7mm, and line direction resonant ring center distance is 3.0～10.0mm; Form the resonant ring group along several resonant rings of column direction, with structural unit of the common composition of the copper lines of PCB substrate another side;
(2) prepared metallic copper structural unit array is cut into the list structure that contains a plurality of structural units, and parallel and equidistant arrangement makes the substrate microwave left-hand material with strip PCB substrate;
(3), make the left-handed materials of point defect regulation and control with a resonant ring in the defective resonant ring replacement substrate microwave left-hand material structural unit; Replace adjacent a plurality of resonant rings in the substrate microwave left-hand material with the defective resonant ring, make the microwave left-hand material of line defect regulation and control;
(4) regulating its strip PCB substrate strip number is 1～10, making the transmission bandwidth scope is 740MHz～1200MHz, the transmission peaks frequency is adjustable in 9750MHz～10210MHz scope, transmission peaks intensity can-29dB～-the tunable microwave left-handed materials that changes in the 39dB scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100260626A CN1332261C (en) | 2004-04-22 | 2004-04-22 | Tunable microwave left-hand material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100260626A CN1332261C (en) | 2004-04-22 | 2004-04-22 | Tunable microwave left-hand material |
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| Publication Number | Publication Date |
|---|---|
| CN1690829A true CN1690829A (en) | 2005-11-02 |
| CN1332261C CN1332261C (en) | 2007-08-15 |
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| CNB2004100260626A Expired - Fee Related CN1332261C (en) | 2004-04-22 | 2004-04-22 | Tunable microwave left-hand material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571517A (en) * | 2016-11-22 | 2017-04-19 | 广西大学 | Micro planar antenna based on metamaterial structure |
| CN107147221A (en) * | 2017-07-05 | 2017-09-08 | 广东电网有限责任公司电力科学研究院 | The spiral LHM in hexagon concave surface and transmission line of electricity energy transmission system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9900034D0 (en) * | 1999-01-04 | 1999-02-24 | Marconi Electronic Syst Ltd | Structure with magnetic properties |
| GB2360132B (en) * | 2000-03-06 | 2002-04-24 | Marconi Caswell Ltd | Structure with switchable magnetic properties |
| US6791432B2 (en) * | 2000-03-17 | 2004-09-14 | The Regents Of The University Of California | Left handed composite media |
-
2004
- 2004-04-22 CN CNB2004100260626A patent/CN1332261C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571517A (en) * | 2016-11-22 | 2017-04-19 | 广西大学 | Micro planar antenna based on metamaterial structure |
| CN106571517B (en) * | 2016-11-22 | 2019-07-12 | 广西大学 | A kind of microminiature flat plane antenna based on metamaterial structure |
| CN107147221A (en) * | 2017-07-05 | 2017-09-08 | 广东电网有限责任公司电力科学研究院 | The spiral LHM in hexagon concave surface and transmission line of electricity energy transmission system |
| CN107147221B (en) * | 2017-07-05 | 2023-04-25 | 广东电网有限责任公司电力科学研究院 | Hexagonal concave spiral left-handed material and power transmission line energy transmission system |
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| Publication number | Publication date |
|---|---|
| CN1332261C (en) | 2007-08-15 |
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