CN204216186U - Cycle-symmetry rice word structure Terahertz wave absorber - Google Patents
Cycle-symmetry rice word structure Terahertz wave absorber Download PDFInfo
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- CN204216186U CN204216186U CN201420751988.0U CN201420751988U CN204216186U CN 204216186 U CN204216186 U CN 204216186U CN 201420751988 U CN201420751988 U CN 201420751988U CN 204216186 U CN204216186 U CN 204216186U
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Abstract
The utility model discloses a kind of Cycle-symmetry rice word structure Terahertz wave absorber.It comprises signal input part, symmetrical rice word architecture transport layer, matrix, metal-layer structure; Symmetrical rice word architecture transport layer is connected with matrix, and symmetrical rice word architecture transport layer comprises 50 × 50 symmetrical rice word structural cycle unit, and symmetrical rice word structural cycle unit comprises four isosceles triangle metal structures, Liang Ge rectangular metal mechanism; Signal inputs from signal input part, arrives metal-layer structure successively after symmetrical rice word architecture transport layer, matrix, and symmetrical rice word architecture transport layer realizes the selection to absorption frequency, and metal-layer structure realizes the absorption to THz wave.The utility model has that size is little, volume is little, lightweight, save material, structure simple, be convenient to make and etc. advantage.
Description
Technical field
The utility model relates to absorber, particularly relates to a kind of Cycle-symmetry rice word structure Terahertz wave absorber.
Background technology
Terahertz Technology is a kind of new technology that twentieth century grows up the end of the eighties.Terahertz frequency domain refers to that frequency is at 0.1THz ~ 10THz, is in the electromagnetic wave band between the front end of microwave and the low frequency end of far red light.It is in the field of electronics to photonic propulsion transition, is integrated with the advantage of microwave communication and optical communication.Terahertz pulse light source has a lot of unique character compared with conventional light source, as: transient state, broadband property, coherence, low energy etc.These features determine the value that Terahertz Technology exists.Considerable application prospect is had in industrial application, medical domain, the communications field and biological field.
Recent domestic launches gradually for the research of THz wave function element, THz wave absorber is a kind of very important THz wave device, for screening the THz wave controlled in THz wave system, at present, the absorber device of terahertz wave band is also very limited, existing THz wave absorber often complex structure, bulky, be difficult to make and expensive, be therefore necessary design a kind of simple and compact for structure, size is little, quality is light, be convenient to the THz wave absorber of processing and fabricating carrys out satisfied following THz wave technology application needs.THz wave Absorber Investigation is to promoting that the research of THz wave function element has indispensable significance.
Summary of the invention
The utility model provides a kind of Cycle-symmetry rice word structure Terahertz wave absorber, and technical scheme is as follows:
Cycle-symmetry rice word structure Terahertz wave absorber comprises signal input part, symmetrical rice word architecture transport layer, matrix, metal-layer structure; Symmetrical rice word architecture transport layer is connected with matrix, and symmetrical rice word architecture transport layer comprises 50 × 50 symmetrical rice word structural cycle unit, symmetrical rice word structural cycle unit comprises four isosceles triangle metal structures, Liang Ge rectangular metal mechanism; Signal inputs from signal input part, arrives metal-layer structure successively after symmetrical rice word architecture transport layer, matrix, and symmetrical rice word architecture transport layer realizes the selection to absorption frequency, and metal-layer structure realizes the absorption to THz wave.
The thickness of described symmetrical rice word architecture transport layer is 1 ~ 2 μm.The thickness of described matrix is 500 ~ 520 μm.The thickness of described metal-layer structure is 1 ~ 2 μm.Described two adjacent symmetrical rice word structural cycle unit intervals are 10 ~ 15 μm.The waist length of described isosceles triangle metal structure is 10 ~ 15 μm, and the angle between two waists is 20 degree.The length of described rectangular metal mechanism is 28 ~ 30 μm, and width is 4 ~ 5 μm.The material of described matrix is High Resistivity Si material, and the material of symmetrical rice word architecture transport layer is copper, and the material of metal-layer structure is copper.
The utility model has that size is little, volume is little, lightweight, save material, structure simple, be convenient to make and etc. advantage.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of Cycle-symmetry rice word structure Terahertz wave absorber;
Fig. 2 is the structural representation of symmetrical rice word architecture transport layer of the present utility model;
Fig. 3 is the structural representation of symmetrical rice word structural cycle unit of the present utility model;
Fig. 4 is the THz wave absorber performance curve of Cycle-symmetry rice word structure Terahertz wave absorber.
Embodiment
As shown in Figures 1 to 3, Cycle-symmetry rice word structure Terahertz wave absorber comprises signal input part 1, symmetrical rice word architecture transport layer 2, matrix 3, metal-layer structure 4; Symmetrical rice word architecture transport layer 2 is connected with matrix 3, and symmetrical rice word architecture transport layer 2 comprises 50 × 50 symmetrical rice word structural cycle unit 5, symmetrical rice word structural cycle unit 5 comprises four isosceles triangle metal structure 6, Liang Ge rectangular metal mechanisms 7; Signal inputs from signal input part 1, and after symmetrical rice word architecture transport layer 2, matrix 3, arrive metal-layer structure 4 successively, symmetrical rice word architecture transport layer 2 realizes the selection to absorption frequency, and metal-layer structure 4 realizes the absorption to THz wave.
The thickness of described symmetrical rice word architecture transport layer 2 is 1 ~ 2 μm.The thickness of described matrix 3 is 500 ~ 520 μm.The thickness of described metal-layer structure 4 is 1 ~ 2 μm.Described two adjacent symmetrical rice word structural cycle unit 5 spacing are 10 ~ 15 μm.The waist length of described isosceles triangle metal structure 6 is 10 ~ 15 μm, and the angle between two waists is 20 degree.The length of described rectangular metal mechanism 7 is 28 ~ 30 μm, and width is 4 ~ 5 μm.The material of described matrix 3 is High Resistivity Si material, and the material of symmetrical rice word architecture transport layer 2 is copper, and the material of metal-layer structure 4 is copper.
Embodiment 1
The thickness of the symmetrical rice word architecture transport layer of Cycle-symmetry rice word structure Terahertz wave absorber is 1 μm.The thickness of matrix is 500 μm.The thickness of metal-layer structure is 1 μm.Two adjacent symmetrical rice word structural cycle unit intervals are 10 μm.The waist length of isosceles triangle metal structure is 10 μm, and the angle between two waists is 20 degree.The length of rectangular metal mechanism is 28 μm, and width is 4 μm.The material of matrix is High Resistivity Si material, and the material of symmetrical rice word architecture transport layer is copper, and the material of metal-layer structure is copper.Absorption coefficient formula A=1-R-T (A is absorptivity, and R is reflectivity, and T is transmitance) records this absorber absorptivity when center frequency points is 1.967THz with THz-TDS and, close to 0.94, shows to have good absorbability.
Claims (8)
1. a Cycle-symmetry rice word structure Terahertz wave absorber, is characterized in that comprising signal input part (1), symmetrical rice word architecture transport layer (2), matrix (3), metal-layer structure (4); Symmetrical rice word architecture transport layer (2) is connected with matrix (3), symmetrical rice word architecture transport layer (2) comprises 50 × 50 symmetrical rice word structural cycles unit (5), symmetrical rice word structural cycle unit (5) comprises four isosceles triangle metal structures (6), Liang Ge rectangular metal mechanism (7); Signal inputs from signal input part (1), metal-layer structure (4) is arrived after passing through symmetrical rice word architecture transport layer (2), matrix (3) successively, symmetrical rice word architecture transport layer (2) realizes the selection to absorption frequency, and metal-layer structure (4) realizes the absorption to THz wave.
2. a kind of Cycle-symmetry rice word structure Terahertz wave absorber according to claim 1, is characterized in that the thickness of described symmetrical rice word architecture transport layer (2) is 1 ~ 2 μm.
3. a kind of Cycle-symmetry rice word structure Terahertz wave absorber according to claim 1, is characterized in that the thickness of described matrix (3) is 500 ~ 520 μm.
4. a kind of Cycle-symmetry rice word structure Terahertz wave absorber according to claim 1, is characterized in that the thickness of described metal-layer structure (4) is 1 ~ 2 μm.
5. a kind of Cycle-symmetry rice word structure Terahertz wave absorber according to claim 1, is characterized in that described two adjacent symmetrical rice word structural cycle unit (5) spacing are 10 ~ 15 μm
6. a kind of Cycle-symmetry rice word structure Terahertz wave absorber according to claim 1, it is characterized in that the waist length of described isosceles triangle metal structure (6) is 10 ~ 15 μm, the angle between two waists is 20 degree.
7. a kind of Cycle-symmetry rice word structure Terahertz wave absorber according to claim 1, it is characterized in that the length of described rectangular metal mechanism (7) is 28 ~ 30 μm, width is 4 ~ 5 μm.
8. a kind of Cycle-symmetry rice word structure Terahertz wave absorber according to claim 1, the material that it is characterized in that described matrix (3) is High Resistivity Si material, the material of symmetrical rice word architecture transport layer (2) is copper, and the material of metal-layer structure (4) is copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420751988.0U CN204216186U (en) | 2014-12-03 | 2014-12-03 | Cycle-symmetry rice word structure Terahertz wave absorber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420751988.0U CN204216186U (en) | 2014-12-03 | 2014-12-03 | Cycle-symmetry rice word structure Terahertz wave absorber |
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| CN204216186U true CN204216186U (en) | 2015-03-18 |
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| CN201420751988.0U Expired - Fee Related CN204216186U (en) | 2014-12-03 | 2014-12-03 | Cycle-symmetry rice word structure Terahertz wave absorber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539431A (en) * | 2018-03-23 | 2018-09-14 | 西安电子科技大学 | Passband embedded type frequency based on parallel LC resonators load selects wave-absorber |
-
2014
- 2014-12-03 CN CN201420751988.0U patent/CN204216186U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539431A (en) * | 2018-03-23 | 2018-09-14 | 西安电子科技大学 | Passband embedded type frequency based on parallel LC resonators load selects wave-absorber |
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| 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: 20150318 Termination date: 20151203 |
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| EXPY | Termination of patent right or utility model |