CN100349059C - Tunable sheet-like microwave negative magnetic conductive material - Google Patents
Tunable sheet-like microwave negative magnetic conductive material Download PDFInfo
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- CN100349059C CN100349059C CNB2004100259582A CN200410025958A CN100349059C CN 100349059 C CN100349059 C CN 100349059C CN B2004100259582 A CNB2004100259582 A CN B2004100259582A CN 200410025958 A CN200410025958 A CN 200410025958A CN 100349059 C CN100349059 C CN 100349059C
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Abstract
The present invention relates to a layered microwave negative magnetic conductivity material, particularly to a layered microwave negative magnetic conductivity material with tunable transmitted intensity. Compared with the existing materials, a structural unit of the negative magnetic conductivity material of the present invention is a metal hexagonal resonant ring with an opening, and geometric dimensions of an inner and an outer rings can regulate and control the resonant frequency and the resonant intensity of the structural unit. The tunable layered microwave negative magnetic conductivity material can be manufactured by regulating geometric dimensions and lattice constants for forming the structural unit, namely the introduction of the intercoupling function of the defect resonant ring and different electromagnetism. A microwave transmitting test of the prepared material indicates that the resonance frequency can be regulated and controlled in the frequency range from 8200 to 8400 MHz, and the resonant intensity can change within the range of-31 db to-7 db.
Description
Technical field the present invention relates to a kind of negative magnetic-inductive capacity material, the tunable stratiform microwave of particularly a kind of intensity in transmission negative magnetic-inductive capacity material.
The background technology negative magnetic-inductive capacity material is the non-existent artificial composite structure material of a kind of occurring in nature, distributes by geometric configuration and the space pattern of regulating its structural unit, can obtain the minus material of magnetic permeability.Negative magnetic-inductive capacity material is combined with each other with the negative permittivity material can make a kind of material of novelty-----left-handed materials (left-handed metamaterials).In this material, electromagnetic phase velocity is opposite with the group velocity direction, thereby presents 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 structural unit of the negative magnetic-inductive capacity material that present researcher is designed mostly is circular and square; The microwave electromagnetic resonance behavior of material, promptly its magnetic permeability is unadjustable for negative frequency range, 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 negative magnetic-inductive capacity material.Its structural unit is a metal hexagonal apertures resonant ring.The resonant ring of identical geometric parameter becomes stratified material according to certain periodic arrangement, and this material shows as negative magnetoconductivity in the frequency band near its resonance frequency.By in material, introducing the different split ring resonator of geometric parameter and regulating its laminate spacing, promptly introduce the defective resonant ring and regulate geometrical structure parameter making that the resonance behavior of material is regulated and control, promptly make resonance frequency in 8200MHz～8400MHz frequency range, can be in harmonious proportion intensity-31dB～-stratiform microwave negative magnetic-inductive capacity material that the 7dB scope is adjustable.
Description of drawings
Fig. 1 stratiform microwave negative magnetic-inductive capacity material sample.
(structural unit is SRRs (d to the microwave transmission curve of the stratiform microwave negative magnetic-inductive capacity material of Fig. 2 different layers spacing
1/ d
2=1.0/3.0mm)).
Fig. 3 main resonance ring is SRRs (d
1/ d
2=1.0/3.0mm) point defect is respectively room, SRRs (d
1/ d
2=1.0/2.6mm) and SRRs (d
1/ d
2=1.0/3.8mm) the microwave transmission curve (interlamellar spacing b=2.83mm) of stratiform microwave negative magnetic-inductive capacity material.
Fig. 4 main resonance ring is SRRs (d
1/ d
2=1.0/3.0mm) point defect is respectively room, SRRs (d
1/ d
2=1.0/2.6mm) and SRRs (d
1/ d
2=1.0/3.8mm) the microwave transmission curve (interlamellar spacing b=6.13mm) of stratiform microwave negative magnetic-inductive capacity material.
Fig. 5 main resonance ring is SRRs ((d
1/ d
2=1.0/3.0mm) point defect is respectively room, SRRs (d
1/ d
2=1.0/2.6mm) and SRRs (d
1/ d
2=1.0/3.8mm) the microwave transmission curve (interlamellar spacing b=9.58mm) of stratiform microwave negative magnetic-inductive capacity material.
Fig. 6 main resonance ring is SRRs (d
1/ d
2=1.0/2.2mm) point defect is respectively room and SRRs (d
1/ d
2=1.0/4.6mm) the microwave transmission curve (interlamellar spacing b=4.5mm) of stratiform microwave negative magnetic-inductive capacity material.
Embodiment adopts the circuit board lithographic technique, be to etch metallic copper structural unit array on the epoxy novolac glass fibre PCB substrate of 0.8mm at thickness, structural unit center distance 3.0～10.0mm, the inscribed circle diameter of interior ring is 1.0mm～3.0mm, the inscribed circle diameter of outer shroud is 2.0mm～4.0mm, opening g=0.3mm, live width is c=0.3mm, resonant ring thickness is 0.02mm; The central opening resonant ring of structural unit is replaced with the resonant ring of room or different geometrical size, the inscribed circle diameter of the interior ring of defective resonant ring is 0.5mm～4.0mm, and the inscribed circle diameter of outer shroud is 1.0mm～5.0mm, opening g=0.3mm, live width is c=0.3mm, makes various structural units; Prepared metallic copper structural unit array is cut into the list structure that three split ring resonators are row, and parallel and equidistant arrangement makes stratiform microwave negative magnetic-inductive capacity material with three PCB substrates; Regulating its laminate spacing is that 1.0mm～10.0mm makes resonance frequency and the adjustable stratiform microwave negative magnetic-inductive capacity material of 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 structural unit array on the epoxy novolac glass fibre PCB substrate of 0.8mm at thickness, structural unit center distance 7.0mm, the inner and outer ring inscribed circle diameter of metal openings resonant ring is respectively 1.0mm and 3.0mm, opening g=0.3mm, live width c=0.3mm, resonant ring thickness are 0.02mm; Prepared metallic copper structural unit array is cut into the list structure that three split ring resonators are row, and parallel and equidistant arrangement makes stratiform microwave negative magnetic-inductive capacity material with three PCB substrates; Regulating course spacing b is respectively 2.83mm, and 4.1mm, 6.13mm, 9.85mm get microwave negative magnetic-inductive capacity material sample I, II, III, IV.The microwave transmission curve of sample as shown in Figure 2.
Embodiment two:
Adopt the circuit board lithographic technique, be to etch metallic copper structural unit array on the epoxy novolac glass fibre PCB substrate of 0.8mm at thickness, structural unit center distance 7.0mm, the inner and outer ring inscribed circle diameter of metal openings resonant ring is respectively 1.0mm and 3.0mm, opening g=0.3mm, live width c=0.3mm, resonant ring thickness are 0.02mm; The central opening resonant ring of structural unit is replaced with the resonant ring of room or different geometrical size, and the inscribed circle diameter of the interior ring of defective resonant ring is 1.0mm, and the inscribed circle diameter of outer shroud is respectively 2.6mm and 3.8mm, opening g=0.3mm, live width c=0.3mm; Prepared metallic copper structural unit array is cut into the list structure that three split ring resonators are row, and parallel and equidistant b=2.83mm arranges and makes stratiform microwave negative magnetic-inductive capacity material sample I, II, III with three PCB substrates.The microwave transmission curve of sample as shown in Figure 3.
Embodiment three:
Adopt the circuit board lithographic technique, be to etch metallic copper structural unit array on the epoxy novolac glass fibre PCB substrate of 0.8mm at thickness, structural unit center distance 7.0mm, the inner and outer ring inscribed circle diameter of metal openings resonant ring is respectively 1.0mm and 3.0mm, opening g=0.3mm, live width c=0.3mm, resonant ring thickness are 0.02mm; The central opening resonant ring of structural unit is replaced with the resonant ring of room or different geometrical size, and the inscribed circle diameter of the interior ring of defective resonant ring is 1.0mm, and the inscribed circle diameter of outer shroud is respectively 2.6mm and 3.8mm, opening g=0.3mm, live width c=0.3mm; Prepared metallic copper structural unit array is cut into the list structure that three split ring resonators are row, and parallel and equidistant b=6.13mm arranges and makes stratiform microwave negative magnetic-inductive capacity material sample I, II, III with three PCB substrates.The microwave transmission curve of sample as shown in Figure 4.
Embodiment four:
Adopt the circuit board lithographic technique, be to etch metallic copper structural unit array on the epoxy novolac glass fibre PCB substrate of 0.8mm at thickness, structural unit center distance 7.0mm, the inner and outer ring inscribed circle diameter of metal openings resonant ring is respectively 1.0mm and 3.0mm, opening g=0.3mm, live width c=0.3mm, resonant ring thickness are 0.02mm; The central opening resonant ring of structural unit is replaced with the resonant ring of room or different geometrical size, and the inscribed circle diameter of the interior ring of defective resonant ring is 1.0mm, and the inscribed circle diameter of outer shroud is respectively 2.6mm and 3.8mm, opening g=0.3mm, live width c=0.3mm; Prepared metallic copper structural unit array is cut into the list structure that three split ring resonators are row, and parallel and equidistant b=9.58mm arranges and makes stratiform microwave negative magnetic-inductive capacity material sample I, II, III with three PCB substrates.The microwave transmission curve of sample as shown in Figure 5.
Embodiment five:
Adopt the circuit board lithographic technique, be to etch metallic copper structural unit array on the epoxy novolac glass fibre PCB substrate of 0.8mm at thickness, structural unit center distance 7.0mm, the inner and outer ring inscribed circle diameter of metal openings resonant ring is respectively 1.0mm and 2.2mm, opening g=0.3mm, live width c=0.3mm, resonant ring thickness are 0.02mm; The central opening resonant ring of structural unit is replaced with the resonant ring of room or different geometrical size, and the inscribed circle diameter of the interior ring of defective resonant ring is 1.0mm, and the inscribed circle diameter of outer shroud is 4.6mm, opening g=0.3mm, live width c=0.3mm; Prepared metallic copper structural unit array is cut into the list structure that three split ring resonators are row, and parallel and equidistant b=4.5mm arranges and makes stratiform microwave negative magnetic-inductive capacity material sample I, II with three PCB substrates.The microwave transmission curve of sample as shown in Figure 6.
Claims (3)
1. tunable stratiform microwave negative magnetic-inductive capacity material, the structural unit of this material is two concentric metallic copper hexagonal apertures rings, matrix is the epoxy novolac glass fiber compound material, its principal character is that inner and outer ring is made up of the metallic copper hexagonal apertures ring of the resonance that can generate electromagnetic waves, and realizes the resonance frequency of negative magnetic-inductive capacity material and the Modulatory character of intensity by the adjusting of inner and outer ring shape, physical dimension and laminate spacing.
2. tunable according to claim 1 stratiform microwave negative magnetic-inductive capacity 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 negative magnetic-inductive capacity material manufacture method is characterized in that manufacture process comprises the steps:
(1) adopting the circuit board lithographic technique, is to etch metallic copper structural unit array, structural unit center distance 3.0～10.0mm on the 0.8mm epoxy novolac glass fibre PCB substrate at thickness;
(2) the central opening resonant ring of structural unit is replaced with the resonant ring of room or different geometrical size, the inscribed circle diameter of the interior ring of defective resonant ring is 0.5mm～4.0mm, the inscribed circle diameter of outer shroud is 1.0mm～5.0mm, 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 three split ring resonators are row, and parallel and equidistant arrangement makes stratiform microwave negative magnetic-inductive capacity material with three PCB substrates;
(4) regulate its laminate spacing be 1.0mm～10.0mm make resonance frequency in 8200MHz～8400MHz frequency range, can be in harmonious proportion intensity-31dB～-stratiform microwave negative magnetic-inductive capacity material that the 7dB scope is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100259582A CN100349059C (en) | 2004-03-16 | 2004-03-16 | Tunable sheet-like microwave negative magnetic conductive material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100259582A CN100349059C (en) | 2004-03-16 | 2004-03-16 | Tunable sheet-like microwave negative magnetic conductive material |
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| Publication Number | Publication Date |
|---|---|
| CN1670602A CN1670602A (en) | 2005-09-21 |
| CN100349059C true CN100349059C (en) | 2007-11-14 |
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| CNB2004100259582A Expired - Fee Related CN100349059C (en) | 2004-03-16 | 2004-03-16 | Tunable sheet-like microwave negative magnetic conductive material |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1941502B (en) * | 2005-09-30 | 2010-12-08 | 西北工业大学 | Microband antenna containing resonance ring in S-band and its array |
| CN1941505B (en) * | 2005-09-30 | 2012-05-30 | 西北工业大学 | Microband antenna C-band left-hand material and its array |
| CN101162800B (en) * | 2006-10-10 | 2010-08-11 | 西北工业大学 | Mobile phone antenna medium substrates with anti-symmetric structure left hand material |
| CN102752995A (en) * | 2011-04-20 | 2012-10-24 | 深圳光启高等理工研究院 | Broadband wave-absorbing metamaterial |
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 |
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2004
- 2004-03-16 CN CNB2004100259582A patent/CN100349059C/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 (3)
| Title |
|---|
| Electromagnetic resonances in individual andcoupledsplit-ring resonators. PHILIPPE GAY.BALMAZ et al. JOURNAL OF APPLIED PHYSICS,Vol.92 No.5. 2002 * |
| 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，第10卷第4期 2003 * |
| 负介电常数和负磁导率微波媒质的试验 隋强，李廉林，李芳.中国科学，第33卷第5期 2003 * |
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