CN1321349C - Tunable laminar microwave left-hand material - Google Patents
Tunable laminar microwave left-hand material Download PDFInfo
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- CN1321349C CN1321349C CNB2004100260611A CN200410026061A CN1321349C CN 1321349 C CN1321349 C CN 1321349C CN B2004100260611 A CNB2004100260611 A CN B2004100260611A CN 200410026061 A CN200410026061 A CN 200410026061A CN 1321349 C CN1321349 C CN 1321349C
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Abstract
The present invention relates to a layered microwave left-handed material, particularly to a layered microwave left-handed material with tunable transmitting band width, frequencies and strength. Compared with the existing materials, a structural unit of the left-handed material of the present invention is a metal hexagonal resonant ring with an opening and a metal wire, and the resonant frequency and the resonant strength of the structural unit can be regulated and controlled by the geometric parameters of an inner and an outer rings. The tunable layered microwave left-handed material can be manufactured by regulating the geometric parameter of the resonant ring with an opening in the structural unit, namely the introduction of the defect resonant ring. A microwave transmitting test of the prepared material shows that the transmitting band width of the left-handed material can reach 1160 MHz, and the frequency of a transmitting peak can be regulated and controlled in the frequency range from 8820 to 9000 MHz; the strength of the transmitting peak can change within the range of-19dB to-38dB.
Description
Technical field the present invention relates to a kind of left-handed materials, the tunable stratiform microwave left-hand material of particularly a kind of transmission bandwidth, transmission peaks frequency and 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 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 stratiform microwave left-hand material.Its structural unit is metal hexagonal apertures resonant ring and metal wire.Identical geometric parameter structural unit becomes stratified material according to certain periodic arrangement, and this material has left hand characteristic in the frequency band near the resonance frequency of split ring resonator.By some structural unit is replaced with the various geometric structural unit, promptly introduce the defective resonant ring and make that transmission bandwidth reaches 1160MHz, the transmission peaks frequency is adjustable in 8820MHz～9000MHz scope, transmission peaks intensity can-19dB～-the tunable stratiform microwave left-hand material that changes in the 38dB scope.
Description of drawings
Fig. 1 individual layer adjustable microwave left hand material sample.
Fig. 2 main resonance ring is SRRs (d
1/ d
2=1.6/3.0mm), point defect is respectively room, SRRs (d
1/ d
2=1.0/3.4mm) and SRRs (d
1/ d
2=1.0/4.6mm) the microwave transmission curve of individual layer microwave left-hand material.
Fig. 3 main resonance ring is SRRs (d
1/ d
2=1.0/2.6mm), point defect is respectively room, SRRs (d
1/ d
2=1.0/2.2mm), SRRs (d
1/ d
2=1.0/3.4mm) and SRRs (d
1/ d
2=1.0/4.0mm) the microwave transmission curve of individual layer microwave left-hand material.
Fig. 4 main resonance ring is SRRs (d
1/ d
2=2.0/4.0mm), point defect is respectively room, SRRs (d
1/ d
2=2.0/2.5mm) the number of plies is the microwave transmission curve of 2 microwave left-hand material.
Fig. 5 main resonance ring is SRRs (d
1/ d
2=1.0/2.6mm), point defect is respectively room, SRRs (d
1/ d
2=1.0/2.0mm) and SRRs (d
1/ d
2=1.0/3.0mm) the number of plies is the microwave transmission curve of 3 microwave left-hand material.
Fig. 6 main resonance ring is SRRs (d
1/ d
2=1.0/2.6mm), line defect is respectively room, SRRs (d
1/ d
2=1.0/2.0mm), SRRs (d
1/ d
2=1.0/3.0mm) and SRRs (d
1/ d
2=1.0/4.2mm) the number of plies is the microwave transmission curve of 3 microwave left-hand material.
Embodiment adopts the circuit board lithographic technique, be to etch metallic copper split ring resonator array on the epoxy novolac glass fibre PCB substrate one side of 0.8mm at thickness, its center distance is 3.0～10.0mm, the inscribed circle diameter of interior ring is 1.0～3.0mm, the inscribed circle diameter of outer shroud is 2.0～4.0mm, opening g=0.1～1.0mm, 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 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; Split ring resonator in some structural unit is replaced with the resonant ring of room or different geometrical size, the interior ring inscribed circle diameter of defective resonant ring is 0.6mm～4.0mm, the outer shroud inscribed circle diameter is 1.0mm～5.0mm, aperture pitch is 0.05mm～0.9mm, live width is 0.1mm～0.5mm, makes various structural units.Prepared metallic copper structural unit array is cut into the list structure that a plurality of structural units are row, and parallel and equidistant arrangement makes the stratiform microwave left-hand material with strip PCB substrate; Regulating its strip PCB substrate number of plies is 1～10, makes the tunable stratiform microwave left-hand material of 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:
Adopt the circuit board lithographic technique, be to etch metallic copper split ring resonator array on the epoxy novolac glass fibre PCB substrate one side of 0.8mm at thickness, its center distance is 7.0mm, the inscribed circle diameter of inner and outer ring is respectively 1.6mm and 3.0mm, opening g=0.3mm, live width is c=0.3mm, and 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 1.6mm, and thickness is 0.02mm; Split ring resonator in the bar division center unit is replaced with the resonant ring of room or different geometrical size, the interior ring inscribed circle diameter of defective resonant ring is 1.0mm, and the outer shroud inscribed circle diameter is respectively 3.4mm and 4.6mm, and aperture pitch is 0.3mm, live width is 0.3mm, makes various structural units.Prepared metallic copper structural unit array is cut into the list structure that 7 structural units are row, make microwave transmission bandwidth, transmission peaks frequency and the tunable number of plies of intensity and be 1 microwave left-hand material.The microwave transmission curve of sample as shown in Figure 2.
Embodiment two:
Adopt the circuit board lithographic technique, be to etch metallic copper split ring resonator array on the epoxy novolac glass fibre PCB substrate one side of 0.8mm at thickness, its center distance is 7.0mm, the inscribed circle diameter of inner and outer ring is respectively 1.0mm and 2.6mm, opening g=0.3mm, live width is c=0.3mm, and 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; Split ring resonator in the bar division center unit is replaced with the 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 2.2mm, 3.4mm and 4.0mm, aperture pitch is 0.3mm, live width is 0.3mm, makes various structural units.Prepared metallic copper structural unit array is cut into the list structure that 7 structural units are row, make microwave transmission bandwidth, transmission peaks frequency and the tunable number of plies of intensity and be 1 microwave left-hand material.The microwave transmission curve of sample as shown in Figure 3.
Embodiment three:
Adopt the circuit board lithographic technique, be to etch metallic copper split ring resonator array on the epoxy novolac glass fibre PCB substrate one side of 0.8mm at thickness, its center distance is 7.0mm, the inscribed circle diameter of inner and outer ring is respectively 2.0mm and 4.0mm, opening g=0.3mm, live width is c=0.3mm, and 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 1.6mm, and thickness is 0.02mm; Split ring resonator in the bar division center unit is replaced with the resonant ring of room or different geometrical size, the interior ring inscribed circle diameter of defective resonant ring is 2.0mm, and the outer shroud inscribed circle diameter is respectively 2.5mm, and aperture pitch is 0.3mm, live width is 0.3mm, makes various structural units.Prepared metallic copper structural unit array is cut into the list structure that 7 structural units are row, and 2 PCB substrates is parallel and arrange with spacing 7.0mm that to make microwave transmission bandwidth, transmission peaks frequency and the tunable number of plies of intensity be 2 microwave left-hand material.The microwave transmission curve of sample as shown in Figure 4.
Embodiment four:
Adopt the circuit board lithographic technique, be to etch metallic copper split ring resonator array on the epoxy novolac glass fibre PCB substrate one side of 0.8mm at thickness, its center distance is 7.0mm, the inscribed circle diameter of inner and outer ring is respectively 1.0mm and 2.6mm, opening g=0.3mm, live width is c=0.3mm, and 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; Prepared metallic copper structural unit array is cut into the list structure that 7 structural units are row, and to arrange and make the number of plies be 3 microwave left-hand material for parallel and equidistant 5mm with 3 PCB substrates.Split ring resonator in the central strip division center unit is replaced with the some 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 2.0mm and 3.0mm, aperture pitch is 0.3mm, live width is 0.3mm, makes microwave transmission bandwidth, transmission peaks frequency and the tunable number of plies of intensity and be 3 microwave left-hand material.The microwave transmission curve of sample as shown in Figure 5.
Embodiment five:
Adopt the circuit board lithographic technique, be to etch metallic copper split ring resonator array on the epoxy novolac glass fibre PCB substrate one side of 0.8mm at thickness, its center distance is 7.0mm, the inscribed circle diameter of inner and outer ring is respectively 1.0mm and 2.6mm, opening g=0.3mm, live width is c=0.3mm, and 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; Prepared metallic copper structural unit array is cut into the list structure that 7 structural units are row, and to arrange and make the number of plies be 3 microwave left-hand material for parallel and equidistant 5mm with 3 PCB substrates.Split ring resonator in every division center unit is replaced with the 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 2.0mm, 3.0mm and 4.2mm, aperture pitch is 0.3mm, live width is 0.3mm, makes microwave transmission bandwidth, transmission peaks frequency and the tunable number of plies of intensity and be 3 microwave left-hand material.The microwave transmission curve of sample as shown in Figure 6.
Claims (4)
1. tunable stratiform microwave left-hand material, the structural unit of this material is made up of metallic copper hexagonal apertures resonant ring and copper lines, lay respectively at epoxy novolac glass mat two surfaces, its principal character is that split ring resonator is made up of the inside and outside metallic copper split ring of the resonance that can generate electromagnetic waves, and is realized the Modulatory character of transmission bandwidth, transmission peaks frequency and the transmission peaks intensity of left-handed materials by the adjusting of inner and outer ring geometric parameter.
2. tunable according to claim 1 stratiform microwave left-hand material, it is characterized in that the metallic copper split ring resonator is a hexagon, the inscribed circle diameter of interior ring is 1.0mm～3.0mm, the inscribed circle diameter of outer shroud is 2.0mm～4.0mm, aperture pitch is 0.3mm, live width is 0.3mm, and resonant ring thickness is 0.02mm.
3. tunable according to claim 1 stratiform microwave left-hand material, the length that it is characterized in that copper lines is 9.9mm, and live width is 0.5mm or 1.6mm, and thickness is 0.02mm.
4. tunable according to claim 1 stratiform microwave left-hand material manufacture method, its process comprises the steps:
(1) adopting the circuit board lithographic technique, is to etch metallic copper split ring resonator and copper lines structural unit array respectively, structural unit center distance 7.0mm on 0.8mm epoxy novolac glass fibre PCB substrate two surfaces at thickness;
(2) split ring resonator of some structural unit is replaced with the resonant ring of room or different geometrical size, the interior ring inscribed circle diameter of defective resonant ring is 0.6mm～4.0mm, and the outer shroud inscribed circle diameter is 1.0mm～5.0mm, and aperture pitch is 0.3mm, live width is 0.3mm, makes various structural units;
(3) prepared metallic copper structural unit array is cut into the list structure that a plurality of structural units are row, and parallel and equidistant arrangement makes the stratiform microwave left-hand material with strip PCB substrate;
(4) regulating its strip PCB substrate number of plies is 1～10, makes transmission bandwidth and reaches 1160MHz, and the transmission peaks frequency is adjustable in 8820MHz～9000MHz scope, transmission peaks intensity can-19dB～-left-handed materials that changes in the 38dB scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100260611A CN1321349C (en) | 2004-04-22 | 2004-04-22 | Tunable laminar microwave left-hand material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100260611A CN1321349C (en) | 2004-04-22 | 2004-04-22 | Tunable laminar microwave left-hand material |
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| Publication Number | Publication Date |
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| CN1690828A CN1690828A (en) | 2005-11-02 |
| CN1321349C true CN1321349C (en) | 2007-06-13 |
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| CNB2004100260611A Expired - Fee Related CN1321349C (en) | 2004-04-22 | 2004-04-22 | Tunable laminar microwave left-hand material |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367847A (en) * | 2012-04-05 | 2013-10-23 | 北京师范大学 | Filtering method for inclined-incidence electromagnetic waves |
| CN103346407B (en) * | 2013-06-15 | 2015-05-27 | 厦门大学 | Left-handed material formed by E-shaped mutually embedded structures and provided with double-rod-shaped tuning structure |
| CN112909553A (en) * | 2021-01-15 | 2021-06-04 | 重庆邮电大学 | Circular polarization transmission array antenna unit based on rotation phase modulation method |
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 CNB2004100260611A patent/CN1321349C/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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