CN1332261C - Tunable microwave left-hand material - Google Patents
Tunable microwave left-hand material Download PDFInfo
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- CN1332261C CN1332261C CNB2004100260626A CN200410026062A CN1332261C CN 1332261 C CN1332261 C CN 1332261C CN B2004100260626 A CNB2004100260626 A CN B2004100260626A CN 200410026062 A CN200410026062 A CN 200410026062A CN 1332261 C CN1332261 C CN 1332261C
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Abstract
The present invention relates to a microwave left-handed material, particularly to a microwave left-handed material with tunable transmitting band width, frequencies and strength. Compared with the existing materials, the present invention uses a cell array with the composite structure of a metal hexagonal opening resonant ring set with a certain dimension and a metal wire as a substrate, and the microwave left-handed material with tunable transmitting band width, transmitting frequencies and transmitting peak strength can be manufactured by introducing defect resonant rings with inner and outer rings having different geometric parameters. A microwave transmitting test of the prepared material shows that the transmitting band width range of the left-handed material can reach 740 to 1200 MHz, and the transmitting peak frequency can be regulated and controlled in the frequency range from 9750 to 10210 MHz; the transmitting peak strength can change within the range of-29dB to-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, obtaining 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.
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; Substrate resonant ring in the middle part of the division center unit of central strip PCB substrate is replaced 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, thickness is 0.02mm, 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, and thickness is 0.02mm, 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 2.4 mm, aperture pitch is 0.3mm, live width is 0.3mm, thickness is 0.02mm, 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, and thickness is 0.02mm, 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. tunable microwave left-handed materials, the structural unit of this material is made up of metallic copper hexagonal apertures resonant ring group and copper lines, 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 is characterized in that base metal copper split ring resonator is a regular hexagon, and the inscribed circle diameter of interior ring is 1.0mm, the inscribed circle diameter of outer shroud is 2.2mm, aperture pitch is 0.3mm, and live width is 0.3mm, and resonant ring thickness is 0.02mm.
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 1.0mm, and the outer shroud inscribed circle diameter is 2.0mm, 2.4mm or 2.6mm, and aperture pitch is 0.3mm, live width is 0.3mm, and resonant ring thickness is 0.02mm.
4. tunable microwave left-handed materials according to claim 1, the length that it is characterized in that copper lines is 9.9mm, and live width is 0.5mm, and thickness is 0.02mm.
5. tunable microwave left-handed materials manufacture method according to claim 1, its process comprises the steps:
(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 0.8mm 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 3.3mm, and line direction resonant ring center distance is 7.0mm; 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 3, 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1690829A CN1690829A (en) | 2005-11-02 |
| CN1332261C true 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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106571517B (en) * | 2016-11-22 | 2019-07-12 | 广西大学 | A kind of microminiature flat plane antenna based on metamaterial structure |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010038325A1 (en) * | 2000-03-17 | 2001-11-08 | The Regents Of The Uinversity Of California | Left handed composite media |
| CN1428017A (en) * | 2000-03-06 | 2003-07-02 | 马科尼光学元件有限公司 | Structure with switchable magnetic properties |
| US6608811B1 (en) * | 1999-01-04 | 2003-08-19 | Marconi Caswell Limited | Structure with magnetic properties |
-
2004
- 2004-04-22 CN CNB2004100260626A patent/CN1332261C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6608811B1 (en) * | 1999-01-04 | 2003-08-19 | Marconi Caswell Limited | Structure with magnetic properties |
| CN1428017A (en) * | 2000-03-06 | 2003-07-02 | 马科尼光学元件有限公司 | Structure with switchable magnetic properties |
| US20010038325A1 (en) * | 2000-03-17 | 2001-11-08 | The Regents Of The Uinversity Of California | Left handed composite media |
Non-Patent Citations (4)
| Title |
|---|
| Electromagnetic resonances in individualandcoupledsplit-ringresonators PHILIPPE GAY.BALMAZ et al,JOURNAL OF APPLIED PHYSICS,Vol.92 No.5 2002 * |
| Electromagnetic resonances in individualandcoupledsplit-ringresonators PHILIPPE GAY.BALMAZ et al,JOURNAL OF APPLIED PHYSICS,Vol.92 No.5 2002;负介电常数和负磁导率微波媒质的实验 隋强 李廉林 李芳，中国科学(G辑)，第33卷第5期 2003;用于构成左手化材料(LHMs)的开口谐振环的研究 张富利 赵乾 刘亚红 赵晓鹏，北京广播学院学报(自然科学版)，第10卷第4期 2003 * |
| 用于构成左手化材料(LHMs)的开口谐振环的研究 张富利 赵乾 刘亚红 赵晓鹏，北京广播学院学报(自然科学版)，第10卷第4期 2003 * |
| 负介电常数和负磁导率微波媒质的实验 隋强 李廉林 李芳，中国科学(G辑)，第33卷第5期 2003 * |
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