CN202084616U - Terahertz wave filter with periodical swastika-shaped hollowed-out structure - Google Patents
Terahertz wave filter with periodical swastika-shaped hollowed-out structure Download PDFInfo
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- CN202084616U CN202084616U CN2011200933138U CN201120093313U CN202084616U CN 202084616 U CN202084616 U CN 202084616U CN 2011200933138 U CN2011200933138 U CN 2011200933138U CN 201120093313 U CN201120093313 U CN 201120093313U CN 202084616 U CN202084616 U CN 202084616U
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- swastika
- engraved structure
- hollowed
- swastika font
- out structure
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Abstract
The utility model discloses a terahertz wave filter with a periodical swastika-shaped hollowed-out structure, including a signal input terminal, a signal output terminal, a transmission layer with a swastika-shaped hollowed-out structure and a substrate. The transmission layer with a swastika-shaped hollowed-out structure is connected with the substrate; the transmission layer with a swastika-shaped hollowed-out structure includes M*N swastika-shaped hollowed-out periodical units, wherein N is a natural number; a square hollowed-out structure and four right-angle hollowed-out structures are rotated 90 DEG anti-clockwise and are connected to form the swastika-shaped hollowed-out periodical unit; the right-angle hollowed-out structure includes a first rectangular hollowed-out structure and a second rectangular hollowed-out structure which are connected vertically; the signals are input from the signal input terminal, and reach the signal output terminal after passing through the transmission layer with a swastika-shaped hollowed-out structure and the substrate in consequence; and the filtering to the signals is realized. The utility model is advantageous in that the frequency selectivity is high, the bandwidth is wide, the structure is simple, the size is small, the volume is small, the weight is light, material is saved, the terahertz wave filter with a periodical swastika-shaped hollowed-out structure is easy to prepare and integrate, etc.
Description
Technical field
The utility model relates to filter, relates in particular to a kind of THz wave filter of Zhou Qi Swastika font engraved structure.
Background technology
(Terahertz THz) is meant that frequency is a electromagnetic wave in 30 μ m～3 mu m ranges at 0.1～10THz or wavelength to THz wave.Aspect THz irradiation of electromagnetic waves and detection Mechanism Study, from phase early 1990s, people such as Zhang Xicheng have just carried out a large amount of fruitful research work in this respect, and the emphasis of their research is to utilize ultrashort pulse and electrooptic crystal to produce the detection that THz involves free space THz ripple.In recent years, the U.S. had built up in the Jefferson laboratory high-power THz light source, and Italy and Britain have realized total solids THz laser, and Japan has realized that semiconductor produces the THz ray under the high-intensity magnetic field.Aspect the research of THz The Application of Technology, since people such as Hu and Nuss set up in the world the first cover THz imaging device first in nineteen ninety-five, many scientists had carried out the research of details in a play not acted out on stage, but told through dialogues imaging, bistatic THz imaging, three-dimensional imaging and T-ray CT etc. in succession.The THz frequency range is an electromagnetic radiation zone that has very much scientific value but do not develop fully as yet, and it has wide application prospect in imaging, medical diagnosis, environmental science, information communication, biochemistry and basic physics research field.
The Terahertz system mainly is made up of radiation source, sensitive detection parts and various function element.In actual applications, because the restriction of applied environment noise and application need etc. need filtering unwanted frequency scope and noise, improve the performance of system, thereby the THz wave filter there is important use in practice.
THz wave filter construction current domestic and international research and that proposed is mainly based on structures such as photonic crystal, surface plasmas, these structures are often very complicated, and difficult in the actual fabrication process, cost is higher, requires also high to processing technology and processing environment.So press for development simple in structure, that size is little, the THz wave filter of being convenient to processing and fabricating supports the THz wave application is proposed.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of THz wave filter of Zhou Qi Swastika font engraved structure is provided.
The THz wave filter of Zhou Qi Swastika font engraved structure comprises signal input part, signal output part, Swastika font engraved structure transport layer, matrix; The Swastika font engraved structure transport layer Swastika font engraved structure transport layer that links to each other with matrix comprises N * N Swastika font hollow out periodic unit, wherein, N is a natural number; Swastika font hollow out periodic unit is formed by connecting by counterclockwise revolving to turn 90 degrees by square hollow out and 4 square engraved structures, and the square engraved structure comprises the first rectangle engraved structure connected vertically and the second rectangle engraved structure; Signal is imported from signal input part, and arriving signal output after Jing Guo Swastika font engraved structure transport layer, the matrix is realized signal is carried out filtering successively.
The spacing of described two Xiang Lin Swastika font hollow out periodic units is 280～320 μ m.The size of the described first rectangle engraved structure and the second rectangle engraved structure equates that wide is 40～50 μ m, and length is 80～100 μ m, and the length of side of square hollow out is 40～50 μ m.The material of described matrix is that the material of High Resistivity Si material ， Swastika font engraved structure transport layer (3) is a copper.
The utlity model has the frequency selectivity height, bandwidth is big, simple in structure, size is little, volume is little, in light weight, economical with materials, be convenient to make and be easy to advantages such as integrated.
Description of drawings
Fig. 1 is the THz wave Filter Structures schematic diagram of Zhou Qi Swastika font engraved structure;
Fig. 2 is the structural representation of this utility model De Swastika font engraved structure transport layer;
Fig. 3 is the structural representation of this utility model De Swastika font hollow out periodic unit;
Fig. 4 is a THz wave performance of filter curve of the present utility model.
Embodiment
Shown in Fig. 1～4, the THz wave filter of Zhou Qi Swastika font engraved structure comprises signal input part 1, signal output part 2, Swastika font engraved structure transmitting layer 3s, matrix 5; The Swastika font engraved structure transmitting layer 3 Swastika font engraved structure transmitting layer 3 that links to each other with matrix 5 comprises N * N Swastika font hollow out periodic unit 4, wherein, N is a natural number; Swastika font hollow out periodic unit 4 is formed by connecting by counterclockwise revolving to turn 90 degrees by square hollow out 9 and 4 square engraved structures 6, and square engraved structure 6 comprises the first rectangle engraved structure 7 connected vertically and the second rectangle engraved structure 8; Signal is from signal input part 1 input, and arriving signal output 2 after Jing Guo Swastika font engraved structure transmitting layer 3, the matrix 5 is realized signal is carried out filtering successively.
The spacing of described two Xiang Lin Swastika font hollow out periodic units 4 is 280～320 μ m.The size of the described first rectangle engraved structure 7 and the second rectangle engraved structure 8 equates that wide is 40～50 μ m, and length is 80～100 μ m, and the length of side of square hollow out 9 is 40～50 μ m.The material of described matrix 5 is that the material of High Resistivity Si material ， Swastika font engraved structure transmitting layer 3 is a copper.
Structure number N is 80, and structural cycle is 300 μ m.The wide of the first rectangle engraved structure 7 and the second rectangle engraved structure 8 is 40～50 μ m, and length is 80～100 μ m.The length of side of square hollow out 9 is 40～50 μ m.The matrix of the THz wave filter of Zhou Qi Swastika font engraved structure is the High Resistivity Si material, and the transport layer structure is a copper material.The center frequency points of this filter is 0.92THz, and the return loss S11 of this point is-38dB that insertion loss S21 is-0.2dB.
Claims (4)
1. the THz wave filter of all phase property Swastika font engraved structures is characterized in that comprising signal input part (1), signal output part (2), Swastika font engraved structure transport layer (3), matrix (5); Swastika font engraved structure transport layer (3) the Swastika font engraved structure transport layer (3) that links to each other with matrix (5) comprises N * N Swastika font hollow out periodic unit (4), wherein, N is a natural number; Swastika font hollow out periodic unit (4) is formed by connecting by counterclockwise revolving to turn 90 degrees by square hollow out (9) and 4 square engraved structures (6), and square engraved structure (6) comprises the first rectangle engraved structure (7) connected vertically and the second rectangle engraved structure (8); Signal is from signal input part (1) input, and Jing Guo Swastika font engraved structure transport layer (3), matrix (5) arriving signal output (2) is afterwards realized signal is carried out filtering successively.
2. the THz wave filter of a kind of Zhou Qi Swastika font engraved structure according to claim 1, the spacing that it is characterized in that described two Xiang Lin Swastika font hollow out periodic units (4) is 280～320 μ m.
3. the THz wave filter of a kind of Zhou Qi Swastika font engraved structure according to claim 1, the size that it is characterized in that the described first rectangle engraved structure (7) and the second rectangle engraved structure (8) equates, wide is 40～50 μ m, length is 80～100 μ m, and the length of side of square hollow out (9) is 40～50 μ m.
4. the THz wave filter of a kind of Zhou Qi Swastika font engraved structure according to claim 1, the material that it is characterized in that described matrix (5) are that the material of High Resistivity Si material ， Swastika font engraved structure transport layer (3) is a copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200933138U CN202084616U (en) | 2011-04-01 | 2011-04-01 | Terahertz wave filter with periodical swastika-shaped hollowed-out structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200933138U CN202084616U (en) | 2011-04-01 | 2011-04-01 | Terahertz wave filter with periodical swastika-shaped hollowed-out structure |
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| Publication Number | Publication Date |
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| CN202084616U true CN202084616U (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200933138U Expired - Fee Related CN202084616U (en) | 2011-04-01 | 2011-04-01 | Terahertz wave filter with periodical swastika-shaped hollowed-out structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800907A (en) * | 2012-08-02 | 2012-11-28 | 重庆大学 | Micro-band low pass filter |
| CN103717044A (en) * | 2012-09-29 | 2014-04-09 | 深圳光启创新技术有限公司 | Wave absorbing material |
| WO2019153465A1 (en) * | 2018-02-06 | 2019-08-15 | 雄安华讯方舟科技有限公司 | Terahertz band stop filter unit based on metamaterial and terahertz band stop filter |
-
2011
- 2011-04-01 CN CN2011200933138U patent/CN202084616U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800907A (en) * | 2012-08-02 | 2012-11-28 | 重庆大学 | Micro-band low pass filter |
| CN103717044A (en) * | 2012-09-29 | 2014-04-09 | 深圳光启创新技术有限公司 | Wave absorbing material |
| CN103717044B (en) * | 2012-09-29 | 2018-05-22 | 深圳光启创新技术有限公司 | A kind of absorbing material |
| WO2019153465A1 (en) * | 2018-02-06 | 2019-08-15 | 雄安华讯方舟科技有限公司 | Terahertz band stop filter unit based on metamaterial and terahertz band stop filter |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20120401 |