CN203760676U - Super compact wave-absorbing unit - Google Patents
Super compact wave-absorbing unit Download PDFInfo
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- CN203760676U CN203760676U CN201420009428.8U CN201420009428U CN203760676U CN 203760676 U CN203760676 U CN 203760676U CN 201420009428 U CN201420009428 U CN 201420009428U CN 203760676 U CN203760676 U CN 203760676U
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- metallic film
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- hollow out
- metal film
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Abstract
The utility model discloses a super compact wave-absorbing unit. The super compact wave-absorbing unit comprises a first metal film, a rectangular dielectric layer is arranged on the rectangular metal film, and a second metal film is disposed on the rectangular dielectric layer. The first metal film is equipped with hollow bodies formed by a first C-shaped hollow body and a second C-shaped hollow body which are arranged back-to-back. The second metal film is formed by a piece of first C-shaped tinsel and a piece of second C-shaped tinsel which are arranged back-to-back. The hollow bodies are similar to the second metal film in terms of shape. The advantages are that the super compact wave-absorbing unit is quite thin and is above -15dB in wave-absorbing performance.
Description
Technical field
The utility model relates to a kind of ultra-compact and inhales ripple unit.
Background technology
Traditional absorbing material requires size that will be thicker can obtain good wave-absorbing effect, but in low-frequency range, such as frequency is within the scope of 1-2GHz, more than absorbing material thickness will exceed 10mm conventionally, this has received serious restriction in actual applications, especially, in the microwave circuit of compact conformation, is difficult to especially use, simultaneously the performance of traditional absorbing material namely-level of 10dB left and right, this index is usually also difficult to meet the demands in microwave circuit, aerial array.
For this reason, need a kind of thickness of utility model as thin as a wafer, the material of about exceed-15dB of absorbing property, the utility model just in time can meet such designing requirement.
Utility model content
The utility model provide a kind of thickness as thin as a wafer, absorbing property exceedes-more than 15dB ultra-compact inhales ripple unit.
The utility model adopts following technical scheme:
A kind of ultra-compact is inhaled ripple unit, comprise: the first metallic film, in rectangular metallic film, be provided with Rectangular Enclosure with Participating Media layer, on Rectangular Enclosure with Participating Media layer, be provided with the second metallic film, be provided with hollow out at described the first metallic film, described hollow out is made up of a C shape hollow out and the 2nd C shape hollow out and a C shape hollow out and the 2nd C shape hollow out are back-to-back and arrange, described the second metallic film is made up of a C shape metal forming and the 2nd C shape metal forming and a C shape metal forming and the 2nd C shape metal forming are back-to-back and arrange, the shape of the shape of described hollow out and the second metallic film similar figures each other.
Compared with prior art, the utlity model has following advantage:
The hollow out of similar figures and the second metallic film each other, make the first metallic film and the second metallic film form complementation, form complementary metamaterial structure, first this complementary metamaterial structure can ensure that the input impedance of whole suction ripple unit approaches the wave impedance of air in wider frequency band, be that super material is inhaled ripple device resistance matching problem thereby first overcome in traditional sense, this is that super material is inhaled primarily satisfying condition of ripple device.Be different from the additional short microstrip line construction of double C shape that first Lindy in 2008 proposes, the structure that is positioned at the first metallic film has substituted the short microstrip line construction of traditional longer size, both can ensure in total, to there is enough large equivalent inductance, the size of effectively having dwindled again whole unit simultaneously, this structure also helps further dwindles whole element thickness, also be that engraved structure based on same brings larger equivalent inductance, therefore, thickness of the present utility model is less than 1/100th operation wavelengths, exceed-15dB of absorbing property, and conventional absorbing material thickness can only be less than 1/tens operation wavelengths conventionally, and be generally-10dB of absorbing property left and right.
Brief description of the drawings
Reading by reference to the accompanying drawings after description, above-mentioned purpose of the present utility model, further feature and advantage all can be more obvious, wherein:
Fig. 1 is overall structure end view of the present utility model.
Fig. 2 is the first metallic film vertical view of the present utility model.
Fig. 3 is the A-A cutaway view of the utility model the first metallic film.
Fig. 4 is Rectangular Enclosure with Participating Media layer vertical view of the present utility model.
Fig. 5 is the second metallic film vertical view of the present utility model.
Fig. 6 is the absorbing property curve in the utility model embodiment.
Embodiment
Embodiment 1
A kind of ultra-compact is inhaled ripple unit, comprise: the first metallic film 1, in rectangular metallic film 1, be provided with Rectangular Enclosure with Participating Media layer 3, on Rectangular Enclosure with Participating Media layer 3, be provided with the second metallic film 4, be provided with hollow out 2 at described the first metallic film 1, described hollow out 2 is made up of a C shape hollow out 21 and the 2nd C shape hollow out 22 and a C shape hollow out 21 and the 2nd C shape hollow out 22 are back-to-back and arrange, described the second metallic film 4 is made up of a C shape metal forming 41 and the 2nd C shape metal forming 42 and a C shape metal forming 41 and the 2nd C shape metal forming 42 are back-to-back and arrange, the shape of the shape of described hollow out 2 and the second metallic film 4 similar figures each other.The projection of the second metallic film 4 on the first metallic film 1 falls into hollow out 2 inside of the first metallic film 1.
Be the detailed content of a preferred embodiment of the present utility model below, embodiment in conjunction with the accompanying drawings.Possible in the situation that, represent same or analogous part for the same label of institute's drawings attached and explanation.This embodiment is a kind of for radio circuit electromagnetic isolation, micro-strip antenna array cell isolation.Comprise from the bottom to top three-decker, extension width is 7.2mm, and basecoat material is rectangle copper film, and thickness is 17um, has surely the I-shaped shape part hollow out that is corroded in the middle of this metallic film, and openwork part width is 1.8mm; Be one deck Rectangular Enclosure with Participating Media material at this metallic film upside, dielectric constant is 60+0.24i, and its thickness is 0.95mm; Be layer of copper film at this dielectric material upside, thickness is 17um, and this metallic film shape is as the criterion I-shaped, and metal live width is 1mm, and its absorbing property curve as shown in Figure 5.Obviously at working frequency points 1.2659GHz, exceed-20dB of the absorbing property of this structure, and its integral thickness only has 0.97mm, and corresponding operation wavelength is 239mm, and comparatively speaking, its integral thickness is only 1/246 operation wavelength.Than traditional absorbing material, this new structure has minimum thickness and splendid absorbing property.
The utility model can combine multiple such suction ripple unit and can build the absorbing material of very thin thickness, and such absorbing material working range, at 0.5GHz between 150GHz, can be widely used in the electromagnetic isolation, stealthy etc. of microwave device inside conventionally.
Although the utility model is illustrated with reference to accompanying drawing and preferred embodiment,, for a person skilled in the art, the utility model can have various modifications and variations.Various change of the present utility model, variation, and equivalent has the content of appending claims to contain.
Claims (2)
1. a ultra-compact is inhaled ripple unit, it is characterized in that, comprise: the first metallic film (1), in rectangular metallic film (1), be provided with Rectangular Enclosure with Participating Media layer (3), on Rectangular Enclosure with Participating Media layer (3), be provided with the second metallic film (4), be provided with hollow out (2) at described the first metallic film (1), described hollow out (2) is made up of a C shape hollow out (21) and the 2nd C shape hollow out (22) and a C shape hollow out (21) and the 2nd C shape hollow out (22) are setting back-to-back, described the second metallic film (4) is made up of a C shape metal forming (41) and the 2nd C shape metal forming (42) and a C shape metal forming (41) and the 2nd C shape metal forming (42) are setting back-to-back, the shape similar figures each other of the shape of described hollow out (2) and the second metallic film (4).
2. ultra-compact according to claim 1 is inhaled ripple unit, it is characterized in that, the projection of the second metallic film (4) on the first metallic film (1) falls into hollow out (2) inside of the first metallic film (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420009428.8U CN203760676U (en) | 2014-01-08 | 2014-01-08 | Super compact wave-absorbing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420009428.8U CN203760676U (en) | 2014-01-08 | 2014-01-08 | Super compact wave-absorbing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203760676U true CN203760676U (en) | 2014-08-06 |
Family
ID=51255914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420009428.8U Expired - Fee Related CN203760676U (en) | 2014-01-08 | 2014-01-08 | Super compact wave-absorbing unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN203760676U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808258A (en) * | 2018-07-19 | 2018-11-13 | 黄山学院 | A kind of cellular construction and its tuning methods of wideband electromagnetic induction transparent material |
| WO2019127938A1 (en) * | 2017-12-29 | 2019-07-04 | 深圳光启尖端技术有限责任公司 | Controllable wave-absorbing metamaterial |
-
2014
- 2014-01-08 CN CN201420009428.8U patent/CN203760676U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019127938A1 (en) * | 2017-12-29 | 2019-07-04 | 深圳光启尖端技术有限责任公司 | Controllable wave-absorbing metamaterial |
| US11145989B2 (en) | 2017-12-29 | 2021-10-12 | Kuang-Chi Cutting Edge Technology Ltd. | Controllable wave-absorbing metamaterial |
| CN108808258A (en) * | 2018-07-19 | 2018-11-13 | 黄山学院 | A kind of cellular construction and its tuning methods of wideband electromagnetic induction transparent material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20200108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |