CN204216188U - Cycle-symmetry dumbbell structure THz wave filter - Google Patents
Cycle-symmetry dumbbell structure THz wave filter Download PDFInfo
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- CN204216188U CN204216188U CN201420752005.5U CN201420752005U CN204216188U CN 204216188 U CN204216188 U CN 204216188U CN 201420752005 U CN201420752005 U CN 201420752005U CN 204216188 U CN204216188 U CN 204216188U
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Abstract
The utility model discloses a kind of Cycle-symmetry dumbbell structure THz wave filter.It comprises signal input part, symmetrical dumbbell structure transport layer, matrix, signal output part; Symmetrical dumbbell structure transport layer is connected with matrix, symmetrical dumbbell structure transport layer comprises 50 × 50 symmetrical dumbbell structure periodic units, symmetrical dumbbell structure periodic unit comprises a large circle metal structure, four small circle ring metal structures, two rectangular metal structures; Signal inputs from signal input part, and arriving signal output after passing through symmetrical dumbbell structure transport layer, matrix successively, realizes the filtering to signal.The utility model have compact conformation, selectivity high, be with roomy, size is little, lightweight and be easy to the advantage such as integrated.
Description
Technical field
The utility model relates to filter, particularly relates to a kind of Cycle-symmetry dumbbell structure THz wave filter.
Background technology
Terahertz wave spectrum is between microwave and infrared radiation.In person in electronics, the electromagnetic wave of this frequency range is otherwise known as millimeter wave and submillimeter wave, and in field of spectroscopy, it is also referred to as far infrared radiation.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.At present, the research institution in the world about THz wave emerges in multitude, and achieves a lot of achievement in research, and Terahertz Technology will be the focus of extensively research in following a very long time world wide.
Terahertz system forms primarily of radiation source, sensitive detection parts and various function element.In actual applications, due to the restriction etc. that applied environment noise and application need, need filtering unwanted frequency scope and noise, improve the performance of system, thus THz wave filter has important application in practice.
Recent domestic launches gradually for the research of THz wave filtering device, THz wave filter is a kind of very important THz wave device, for screening the THz wave controlled in THz wave system, current THz wave filter construction is mainly based on the structure such as photonic crystal, surface plasma, these structures are often very complicated, and difficult in actual fabrication process, cost is higher, requires also high to processing technology and processing environment.So in the urgent need to propose size little, be convenient to processing and fabricating, compact conformation THz wave filter to promote the research and development of THz wave filter.
Summary of the invention
The utility model provides a kind of Cycle-symmetry dumbbell structure THz wave filter, and technical scheme is as follows:
Cycle-symmetry dumbbell structure THz wave filter comprises signal input part, symmetrical dumbbell structure transport layer, matrix, signal output part; Symmetrical dumbbell structure transport layer is connected with matrix, symmetrical dumbbell structure transport layer comprises 50 × 50 symmetrical dumbbell structure periodic units, symmetrical dumbbell structure periodic unit comprises a large circle metal structure, eight small circle ring metal structures, two rectangular metal structures; Signal inputs from signal input part, arriving signal output after passing through symmetrical dumbbell structure transport layer, matrix successively, realizes carrying out filtering to signal.
The thickness of described symmetrical dumbbell structure transport layer is 1 ~ 2 μm.The thickness of described matrix is 500 ~ 520 μm.Described two adjacent symmetrical dumbbell structure periodic unit spacing are 10 ~ 15 μm.The outer radius of described large circle metal structure is 35 ~ 40 μm, and width is 7 ~ 9 μm.The outer radius of described small circle ring metal structure is 6 ~ 10 μm, and width is 2 ~ 5 μm.The length of described rectangular metal structures is 42 ~ 44 μm, and width is 5 ~ 6 μm.The material of described matrix is High Resistivity Si material, and the material of symmetrical dumbbell structure transport layer is copper.
The utility model have compact conformation, selectivity high, be with roomy, size is little, lightweight and be easy to the advantage such as integrated.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of Cycle-symmetry dumbbell structure THz wave filter;
Fig. 2 is the structural representation of symmetrical dumbbell structure transport layer of the present utility model;
Fig. 3 is the structural representation of symmetrical dumbbell structure periodic unit of the present utility model;
Fig. 4 is Cycle-symmetry dumbbell structure THz wave performance of filter curve.
Embodiment
As shown in Figures 1 to 3, Cycle-symmetry dumbbell structure THz wave filter comprises signal input part 1, symmetrical dumbbell structure transport layer 2, matrix 3, signal output part 4; Symmetrical dumbbell structure transport layer 2 is connected with matrix 3, symmetrical dumbbell structure transport layer 2 comprises 50 × 50 symmetrical dumbbell structure periodic units 5, symmetrical dumbbell structure periodic unit 5 comprises a large circle metal structure 7, eight small circle ring metal structures 6, two rectangular metal structures 8; Signal inputs from signal input part 1, and arriving signal output 4 after passing through symmetrical dumbbell structure transport layer 2, matrix 3 successively, realizes carrying out filtering to signal.
The thickness of described symmetrical dumbbell structure transport layer 2 is 1 ~ 2 μm.The thickness of described matrix 3 is 500 ~ 520 μm.Described two adjacent symmetrical dumbbell structure periodic unit 5 spacing are 10 ~ 15 μm.The outer radius of described large circle metal structure 7 is 35 ~ 40 μm, and width is 7 ~ 9 μm.The outer radius of described small circle ring metal structure 6 is 6 ~ 10 μm, and width is 2 ~ 5 μm.The length of described rectangular metal structures 8 is 42 ~ 44 μm, and width is 5 ~ 6 μm.The material of described matrix 3 is High Resistivity Si material, and the material of symmetrical dumbbell structure transport layer 2 is copper.
Embodiment 1
The thickness of the symmetrical dumbbell structure transport layer of Cycle-symmetry dumbbell structure THz wave filter is 1 μm.The thickness of matrix is 500 μm.Two adjacent symmetrical dumbbell structure periodic unit spacing are 10 μm.The outer radius of large circle metal structure is 35 μm, and width is 7 μm.The outer radius of small circle ring metal structure is 6 μm, and width is 2 μm.The length of rectangular metal structures is 42 μm, and width is 5 μm.The material of matrix is High Resistivity Si material, and the material of symmetrical dumbbell structure transport layer is copper.Recording this filter centre frequency point with THz-TDS is 0.712THz, and the return loss S11 of this point is-29.8dB, and insertion loss S21 is-0.02dB, and bandwidth is 0.02THz.
Claims (8)
1. a Cycle-symmetry dumbbell structure THz wave filter, is characterized in that comprising signal input part (1), symmetrical dumbbell structure transport layer (2), matrix (3), signal output part (4); Symmetrical dumbbell structure transport layer (2) is connected with matrix (3), symmetrical dumbbell structure transport layer (2) comprises 50 × 50 symmetrical dumbbell structure periodic units (5), symmetrical dumbbell structure periodic unit (5) comprises a large circle metal structure (7), eight small circle ring metal structures (6), two rectangular metal structures (8); Signal is from signal input part (1) input, and arriving signal output (4) after passing through symmetrical dumbbell structure transport layer (2), matrix (3) successively, realizes carrying out filtering to signal.
2. a kind of Cycle-symmetry dumbbell structure THz wave filter according to claim 1, is characterized in that the thickness of described symmetrical dumbbell structure transport layer (2) is 1 ~ 2 μm.
3. a kind of Cycle-symmetry dumbbell structure THz wave filter according to claim 1, is characterized in that the thickness of described matrix (3) is 500 ~ 520 μm.
4. a kind of Cycle-symmetry dumbbell structure THz wave filter according to claim 1, is characterized in that described two adjacent symmetrical dumbbell structure periodic unit (5) spacing are 10 ~ 15 μm.
5. a kind of Cycle-symmetry dumbbell structure THz wave filter according to claim 1, it is characterized in that the outer radius of described large circle metal structure (7) is 35 ~ 40 μm, width is 7 ~ 9 μm.
6. a kind of Cycle-symmetry dumbbell structure THz wave filter according to claim 1, it is characterized in that the outer radius of described small circle ring metal structure (6) is 6 ~ 10 μm, width is 2 ~ 5 μm.
7. a kind of Cycle-symmetry dumbbell structure THz wave filter according to claim 1, it is characterized in that the length of described rectangular metal structures (8) is 42 ~ 44 μm, width is 5 ~ 6 μm.
8. a kind of Cycle-symmetry dumbbell structure THz wave filter according to claim 1, it is characterized in that the material of described matrix (3) is High Resistivity Si material, the material of symmetrical dumbbell structure transport layer (2) is copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420752005.5U CN204216188U (en) | 2014-12-03 | 2014-12-03 | Cycle-symmetry dumbbell structure THz wave filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420752005.5U CN204216188U (en) | 2014-12-03 | 2014-12-03 | Cycle-symmetry dumbbell structure THz wave filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204216188U true CN204216188U (en) | 2015-03-18 |
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| CN201420752005.5U Expired - Fee Related CN204216188U (en) | 2014-12-03 | 2014-12-03 | Cycle-symmetry dumbbell structure THz wave filter |
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2014
- 2014-12-03 CN CN201420752005.5U patent/CN204216188U/en not_active Expired - Fee Related
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| 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: 20150318 Termination date: 20151203 |
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| EXPY | Termination of patent right or utility model |