CN107645064A - Low-frequency ultra-wideband wave absorbing device based on loading cycle metal level inside magnetic material - Google Patents
Low-frequency ultra-wideband wave absorbing device based on loading cycle metal level inside magnetic material Download PDFInfo
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- CN107645064A CN107645064A CN201710709972.1A CN201710709972A CN107645064A CN 107645064 A CN107645064 A CN 107645064A CN 201710709972 A CN201710709972 A CN 201710709972A CN 107645064 A CN107645064 A CN 107645064A
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Abstract
The invention provides a kind of low-frequency ultra-wideband wave absorbing device based on loading cycle metal level inside magnetic material.The wave absorbing device includes medium substrate (1) and is close to the metallic plate (2) of medium substrate (1) lower surface, also include the period surface metal pattern (3) positioned at medium substrate (1) upper surface, the medium substrate (4) being additionally included in above the period surface metal pattern, the medium substrate (1) is as medium substrate (4) material therefor, the magnetic material all for high magnetic permeability.The wave absorbing device of the present invention realizes that 1.13GHz~4.8GHz has more than 0.9 wave-absorbing effect, and wave absorbing device thickness of thin using the method that FSS is loaded inside magnetic material, solves the problems, such as to inhale wavestrip width in low-frequency range.
Description
Technical field
The present invention relates to a kind of low-frequency ultra-wideband wave absorbing device based on loading cycle metal level inside magnetic material, belong to super
The technical field of material wave absorbing device design.
Background technology
Microwave wave absorbing device, it is a kind of functional material for being capable of effective electromagnetic wave absorption as its name suggests, 2008, Landy
Et al. absorbing property is prepared close to 100% wave absorbing device according to the EMR electromagnetic resonance characteristic of Meta Materials, but frequency band is very narrow, it
Wave absorbing device is quickly grown afterwards, with deepening continuously for research, various stable polarizations, wide-angle, broadband and multiband
Meta Materials wave-absorber is suggested in succession, and is applied to that physical protection, information security, target be stealthy and antenna structure design
Reduction design etc..
But most of wave absorbing device working frequency is in X-band at this stage, to working frequency low-frequency range wave absorbing device research compared with
It is few, although the wave absorbing device of high band can be all especially big by uniform zoom to low-frequency range, thickness and unit size.Low
On the premise of frequency range and suction wave plate thickness are no more than 3mm, want to realize that the suction ripple of ultrabroad band is more difficult.
The content of the invention
Technical problem：The technical problem to be solved in the present invention is to provide loading cycle metal level inside a kind of magnetic material
Low-frequency ultra-wideband wave absorbing device, how frequency bandwidth is expanded on the premise of low-frequency range and thickness are no more than 3mm.Main target is real
Existing thickness of thin, frequency band be low, with wide, insensitive and wide-angle the Meta Materials wave absorbing device of polarization.
Technical scheme：The low-frequency ultra-wideband wave absorbing device based on loading cycle metal level inside magnetic material of the present invention, should
Wave absorbing device includes layer dielectric substrate and is close to the metallic plate of medium substrate lower surface, in addition on layer dielectric substrate
The period surface metal structure on surface, and the upper layer medium substrate on the period surface metal structure；
Wherein：
Described layer dielectric substrate, in 1GHz-4.95GHz frequency ranges, magnetic conductivity drops to material therefor from 7.9
2.17, for dielectric constant near 24, thickness is 1.54 ± 0.05mm.
Described upper layer medium substrate, in 1GHz-4.95GHz frequency ranges, magnetic conductivity drops to material therefor from 7.9
2.17, for dielectric constant near 24, thickness is 1.12 ± 0.05mm.
Described period surface metal structure is metal side's ring structure, and side's ring outer ring length of side is 5.74 ± 0.1mm, side
The ring inner ring length of side is 2.1 ± 0.1mm.
The wave absorbing device unit size is (11.2 ± 0.1) mm* (11.2 ± 0.1) mm, wave absorbing device thickness is 2.66 ±
0.1mm, metallic plate and period surface metal structure are all copper foil, and thickness is 0.02 ± 0.005mm.
The absorptivity calculation formula of the wave absorbing device is A (ω)=1-R (ω), and wherein R (ω) is | S11| ^2 is wave absorbing device
Square of the modulus value of input reflection coefficient, ω are frequency.
Beneficial effect：
1st, the low-frequency ultra-wideband wave absorbing device based on loading cycle metal level inside magnetic material of the invention, material therefor are
High magnetic material, realizes the absorbing property of low-frequency range and absorbing property is good.
2nd, the low-frequency ultra-wideband wave absorbing device based on loading cycle metal level inside magnetic material of the invention, by magnetic
Material internal loading cycle metal level, realizing wave absorbing device has more than 0.9 wave-absorbing effect in 1.13GHz~4.8GHz, solves
Low-frequency range inhales wavestrip width the problem of.
2nd, the low-frequency ultra-wideband wave absorbing device based on loading cycle metal level inside magnetic material of the invention, working band are horizontal
Across L, S, C frequency range, and the design of the wave absorbing device of low-frequency range is less at this stage.
3rd, the low-frequency ultra-wideband wave absorbing device based on loading cycle metal level inside magnetic material of the invention, thickness are
2.66mm, very thin thickness, and unit size are 11.2mm*11.2mm, and unit size is small, and the wave absorbing device is insensitive to polarizing.
Brief description of the drawings
Fig. 1 is the overall knot based on the low-frequency ultra-wideband wave absorbing device of loading cycle metal level inside magnetic material in the present invention
Structure schematic diagram,
Fig. 2 is the dielectric constant curve map of two layer medium substrate material therefor in Fig. 1,
Fig. 3 is the permeability curcve figure of two layer medium substrate material therefor in Fig. 1,
Fig. 4 is cycle metal structure pattern schematic diagram in Fig. 1,
Fig. 5 is the suction ripple rate figure of embodiment 1.
Have in figure：Layer dielectric substrate 1, metallic plate 2, cycle metal structure 3, upper layer medium substrate 4.
Embodiment
A kind of low-frequency ultra-wideband wave absorbing device based on loading cycle metal level inside magnetic material of the present invention, the wave absorbing device
Including layer dielectric substrate 1 and the metallic plate 2 for being close to layer dielectric base lower surface, in addition to it is located at layer dielectric substrate 1
The period surface metal structure 3 of upper surface, the upper layer medium substrate 4 being additionally included in above the period surface metal structure 3.
Preferably, layer dielectric substrate 1 and the material therefor of upper layer medium substrate 4 are in 1GHz-4.95GHz frequency ranges, magnetic conductance
Rate drops to 2.17 from 7.9, and dielectric constant is near 24.
Preferably, cycle metal structure 3 is metal side's ring structure, can by the size of regulating cycle metal structure pattern,
Adjust the working frequency of whole wave absorbing device.
Preferably, the metallic plate 2 of bottom and cycle metal structure 3, upper strata cycle metal structure 5 are all copper foil, and thickness is
0.02mm。
The absorptivity calculation formula of the wave absorbing device is generally：A (ω)=1-R (ω)-T (ω), here because bottom is
Metallic plate 2, then passed through without ripple, transmissivity zero, the suction ripple rate calculation formula in the present invention is A (ω)=1-R (ω).
Illustrated below according to encompassed content.
Embodiment 1：
The low-frequency ultra-wideband wave absorbing device based on loading cycle metal level inside magnetic material of the present invention, as shown in Figure 1.Two
Cycle metal structure among layer medium substrate is as shown in figure 4, wave absorbing device unit size is 11.2mm*11.2mm, layer dielectric
The thickness of substrate is 1.54mm, and the thickness of upper layer medium substrate is 1.12mm, intercycle surface metal structure square ring outer ring
The length of side is 5.74mm, and the square ring inner ring length of side is 2.1mm.
The low-frequency ultra-wideband wave absorbing device of loading cycle metal level is soft in Electromagnetic Simulation inside magnetic material in this example
Part HFSS.13 modeling and simulatings show that Fig. 5 is the suction ripple rate curve map in this example, from figure 5 it can be seen that wave absorbing device exists
1.13GHz~4.8GHz realizes more than 0.9 suction ripple rate, so the wave absorbing device working band is realized across L, S, C frequency range and inhales ripple
The 3.67GHz of rate more than 0.9 bandwidth.
In summary, low-frequency ultra-wideband wave absorbing device of the present invention based on loading cycle metal level inside magnetic material can be low
Frequency range, which is realized, inhales a width of 3.67GHz of the corresponding suction wavestrip of ripple rate more than 0.9 or so, and dielectric substrate thickness only has 2.66mm, should
Wave absorbing device bandwidth scantling is thin, may be advantageously applied in engineering practice.
Claims (7)
- A kind of 1. low-frequency ultra-wideband wave absorbing device based on loading cycle metal level inside magnetic material, it is characterised in that：The suction ripple Device includes layer dielectric substrate (1) and is close to the metallic plate (2) of layer dielectric substrate (1) lower surface, in addition to is located at lower floor The period surface metal structure (3) of medium substrate (1) upper surface, and in the period surface metal structure (3) above upper Layer medium substrate (4).
- 2. the low-frequency ultra-wideband wave absorbing device of loading cycle metal level inside a kind of magnetic material according to claim 1, its It is characterised by：Described layer dielectric substrate (1), in 1GHz-4.95GHz frequency ranges, magnetic conductivity drops to material therefor from 7.9 2.17, for dielectric constant near 24, thickness is 1.54 ± 0.05mm.
- 3. the low-frequency ultra-wideband wave absorbing device of loading cycle metal level inside a kind of magnetic material according to claim 1, its It is characterised by：Described upper layer medium substrate (4), in 1GHz-4.95GHz frequency ranges, magnetic conductivity drops to material therefor from 7.9 2.17, for dielectric constant near 24, thickness is 1.12 ± 0.05mm.
- 4. the low-frequency ultra-wideband wave absorbing device of loading cycle metal level inside a kind of magnetic material according to claim 1, its It is characterised by：The pattern of the period surface metal structure (3) is Fang Huan, and side's ring outer ring length of side is 5.74 ± 0.1mm, side The ring inner ring length of side is 2.1 ± 0.1mm.
- 5. the low-frequency ultra-wideband wave absorbing device of loading cycle metal level inside a kind of magnetic material according to claim 1, its It is characterised by：The wave absorbing device unit size is (11.2 ± 0.1) mm × (11.2 ± 0.1) mm, wave absorbing device thickness is 2.66 ± 0.1mm。
- 6. the low-frequency ultra-wideband wave absorbing device of loading cycle metal level inside a kind of magnetic material according to claim 1, its It is characterised by：The metallic plate (2) and period surface metal structure (3) are all copper foil, and thickness is 0.02 ± 0.005mm.
- 7. the low-frequency ultra-wideband wave absorbing device of loading cycle metal level inside a kind of magnetic material according to claim 1, its It is characterised by：The absorptivity A (ω) of the wave absorbing device=1-R (ω), wherein R (ω) be | S11| ^2 is wave absorbing device input reflection system Square of several modulus value, ω are frequency.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110137691A (en) * | 2019-06-11 | 2019-08-16 | 电子科技大学 | Ultra wide band wave absorbing device based on periodical magnetic material |
| CN111666731A (en) * | 2020-06-05 | 2020-09-15 | 电子科技大学 | Ultrathin ultra-wideband flat wave absorber based on non-Foster circuit and design method thereof |
| CN111755835A (en) * | 2020-06-19 | 2020-10-09 | 电子科技大学 | Broadband periodic wave absorbing structure based on magnetic substrate |
| CN111755828A (en) * | 2020-06-16 | 2020-10-09 | 电子科技大学 | FSS-based low-frequency wave-absorbing structure |
| CN115411531A (en) * | 2022-08-18 | 2022-11-29 | 广东威神装备科技有限公司 | High-absorption broadband wave-absorbing structure based on embedded square ring pattern |
| CN115536400A (en) * | 2022-09-09 | 2022-12-30 | 汕头大学 | Ceramic wave-absorbing material and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015140978A1 (en) * | 2014-03-20 | 2015-09-24 | 株式会社 東芝 | Magnetic material and device |
| CN105789912A (en) * | 2016-03-16 | 2016-07-20 | 深圳光启高等理工研究院 | Wave-absorbing metamaterial, antenna cover and antenna system |
-
2017
- 2017-08-18 CN CN201710709972.1A patent/CN107645064A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015140978A1 (en) * | 2014-03-20 | 2015-09-24 | 株式会社 東芝 | Magnetic material and device |
| CN105789912A (en) * | 2016-03-16 | 2016-07-20 | 深圳光启高等理工研究院 | Wave-absorbing metamaterial, antenna cover and antenna system |
Non-Patent Citations (2)
| Title |
|---|
| 万东: ""多层复合宽带吸波结构的设计与制备"", 《中国优秀硕士学位论文全文数据库》 * |
| 叶璐等: ""低频段超薄微波吸波片带宽展宽研究"", 《2017年全国微波毫米波会议论文集（下册）》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110137691A (en) * | 2019-06-11 | 2019-08-16 | 电子科技大学 | Ultra wide band wave absorbing device based on periodical magnetic material |
| CN110137691B (en) * | 2019-06-11 | 2020-10-09 | 电子科技大学 | Ultra-wideband wave absorber based on periodic magnetic material |
| CN111666731A (en) * | 2020-06-05 | 2020-09-15 | 电子科技大学 | Ultrathin ultra-wideband flat wave absorber based on non-Foster circuit and design method thereof |
| CN111755828A (en) * | 2020-06-16 | 2020-10-09 | 电子科技大学 | FSS-based low-frequency wave-absorbing structure |
| CN111755835A (en) * | 2020-06-19 | 2020-10-09 | 电子科技大学 | Broadband periodic wave absorbing structure based on magnetic substrate |
| CN111755835B (en) * | 2020-06-19 | 2021-08-06 | 电子科技大学 | Broadband periodic wave absorbing structure based on magnetic substrate |
| CN115411531A (en) * | 2022-08-18 | 2022-11-29 | 广东威神装备科技有限公司 | High-absorption broadband wave-absorbing structure based on embedded square ring pattern |
| CN115536400A (en) * | 2022-09-09 | 2022-12-30 | 汕头大学 | Ceramic wave-absorbing material and preparation method and application thereof |
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