CN204516880U - Matrix pattern electric bridge terahertz waveguide directional coupler - Google Patents
Matrix pattern electric bridge terahertz waveguide directional coupler Download PDFInfo
- Publication number
- CN204516880U CN204516880U CN201520233427.6U CN201520233427U CN204516880U CN 204516880 U CN204516880 U CN 204516880U CN 201520233427 U CN201520233427 U CN 201520233427U CN 204516880 U CN204516880 U CN 204516880U
- Authority
- CN
- China
- Prior art keywords
- branch
- waveguide
- waveguides
- directional coupler
- matrix pattern
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Optical Integrated Circuits (AREA)
Abstract
The utility model discloses matrix pattern electric bridge terahertz waveguide directional coupler, it is characterized in that: comprise two main waveguides and four branch-waveguides, article four, branch-waveguide is made up of the branch-waveguide of three longitudinal directions and the branch-waveguide of a transverse direction, article three, the branch-waveguide of longitudinal direction is arranged in the same way, the branch-waveguide of horizontal through three longitudinal directions of branch-waveguide; Two main waveguides lay respectively at the two ends of three longitudinal waveguides, and two main waveguides and four branch-waveguides form matrix pattern structure; The utility model is compared with the directional coupler of same performance, and machinability improves greatly; Under the restriction of identical processing technology level, adopt matrix pattern structure of the present utility model can process the higher directional coupler of the degree of coupling.
Description
Technical field
The utility model relates to Terahertz circuit unit assembly, specifically matrix pattern electric bridge terahertz waveguide directional coupler.
Technical background
Traditional microwave millimeter wave frequency band circuit wave guide directional coupler uses classical branch line waveguide bridge structure, and it a kind ofly conventional can realize tightly coupled quadrature hybrid electric bridge in wider frequency band.
As shown in Figure 1, it is primarily of input (port one), straight-through end (port 2), coupled end (port 3) and isolation end (port 4) totally four port compositions, wherein straight-through end and coupled end totally four port compositions, wherein straight-through end and coupled end are as delivery outlet, and the phase difference of two output signal existence 90 °.Its operation principle is: signal inputs from port one and is divided into two and is transferred to port 2 and port 3, and port 4 is isolated.If port 2 and port 3 connect adapter amplifier, then the output signal of port 2 and port 3 is exaggerated after device amplifies and exports; If when port 2 and port 3 are with external amplifier Incomplete matching, the reflected wave be reflected back just is had at port 2,3, and reflected wave is absorbed by matched load on port 4, because two output ports have 90 ° of phase differences, such two reflected waves are cancelled owing to having 180 ° of phase differences on port 1.Its degree of coupling is relevant with the width of coupling aperture, simple, and the narrower coupling of coupling aperture energy is in the past fewer.
But, along with the rising of frequency, after especially having arrived Terahertz frequency range, guide wavelength enters micron dimension, its branch line width will be narrower, and traditional mechanical processing technique cannot be processed substantially, and the micro electronmechanical MEMS processing technology of even novel micron dimension is all difficult to processing.For the 10dB Waveguide branching line directional coupler of 340GHz, Fig. 2 gives the plan view from above of this structure, and three branch line width are only S1=30 μm, S2=40 μm, S3=45 μm.
Utility model content
The utility model improves on the basis of branch line directional coupler model, removes most external two branch lines the narrowest in branch line electric bridge, adds the waveguide of three road branch lines in the middle of a lateral direction penetrating, make it form a matrix pattern structure.Its coupling principle, for have carried out secondary coupling in via intermedia, makes it be issued to the effect same reached with narrow slit before in the wider situation in coupling gap.
The technical solution of the utility model is as follows:
Matrix pattern electric bridge terahertz waveguide directional coupler, it is characterized in that: comprise two main waveguides and four branch-waveguides, article four, branch-waveguide is made up of the branch-waveguide of three longitudinal directions and the branch-waveguide of a transverse direction, article three, the branch-waveguide of longitudinal direction is arranged in the same way, the branch-waveguide of horizontal through three longitudinal directions of branch-waveguide; Two main waveguides lay respectively at the two ends of the branch-waveguide of three longitudinal directions, and two main waveguides and four branch-waveguides form matrix pattern structure.
Described three longitudinal branch-waveguides be arranged in parallel, and end face all flushes and is connected with main waveguide.
Horizontal and vertical distance between branch-waveguide is determined according to required index calculate.
Coupling principle of the present utility model is equivalent to carry out secondary coupling in via intermedia, makes it be issued to the effect same reached with narrow slit before in the wider situation in coupling gap.
The beneficial effects of the utility model are as follows:
1, the utility model is compared with the directional coupler of same performance, and machinability improves greatly;
2, under the restriction of identical processing technology level, matrix pattern structure of the present utility model is adopted can to process the higher directional coupler of the degree of coupling.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional branch line coupler;
Fig. 2 is traditional waveguide quintafurcation line directional coupler top plan view structure chart;
Fig. 3 is the 10dB classical branch line directional coupling structure schematic diagram adopting 340GHz;
Fig. 4 is the 10dB novel matrix pattern directional coupling structure schematic diagram of 340GHz in embodiment 1;
Fig. 5 is classical branch line directional coupler performance schematic diagram;
Fig. 6 is performance schematic diagram of the present utility model;
Fig. 7 is another kind of structural representation of the present utility model;
Fig. 8 is threedimensional model schematic diagram of the present utility model.
Wherein, Reference numeral is: 1 main waveguide, the branch-waveguide of 2 longitudinal directions, the branch-waveguide of 3 transverse directions.
Embodiment
For the 10dB guide directional coupler of 340GHz, Fig. 3 gives the classical branch line directional coupling structure of 10dB of 340GHz; Fig. 4 gives the novel matrix pattern directional coupling structure of 10dB of 340GHz, comprise two main waveguides 1 and four branch-waveguides, article four, branch-waveguide is made up of the branch-waveguide 2 of three longitudinal directions and the branch-waveguide 3 of a transverse direction, article three, the branch-waveguide 2 of longitudinal direction is arranged in the same way, the branch-waveguide 2 of horizontal through three longitudinal directions of branch-waveguide 3; Two main waveguides 1 lay respectively at the two ends of the branch-waveguide 2 of three longitudinal directions, and two main waveguides 1 and four branch-waveguides form matrix pattern structure.Described three longitudinal branch-waveguides 2 be arranged in parallel, and end face all flushes, and is connected with main waveguide 1.
Three branch line width of novel matrix pattern directional coupler are respectively S1=62 μm, S2=62 μm, S3=68 μm.The parameter of contrast two kinds of structures can find, in quintafurcation line directional coupler, the narrowest branch line width only has 30 μm, and the narrowest waveguide has 62 μm in matrix pattern directional coupler, therefore Machinability Evaluation obviously promotes more than one times, and can keep excellent performance simultaneously.
Fig. 5-6 gives the performance map of two kinds of directional couplers.The performance of contrast two kinds of structures finds, both performances are substantially close.These two kinds of guide directional couplers are all in [320GHz, 360GHz] scope, and obtaining the degree of coupling is 10dB, it is 0.46dB that straight-through output distributes loss, it is 10dB that coupling output distributes loss, and output port isolation is better than 30dB, and each reflection coefficient of port loss is better than the premium properties of 30dB.
Two kinds of structures of the 10dB guide directional coupler application of contrast design 340GHz, when can keep premium properties at the same time, in quintafurcation line directional coupler shown in Fig. 3, the narrowest branch line width only has 30 μm, and the narrowest waveguide has 62 μm in the matrix pattern directional coupler shown in Fig. 4, therefore Machinability Evaluation obviously promotes more than one times.Vice versa illustrates, under the restriction of equal processing technology level, uses novel matrix pattern structure can design the higher directional coupler of the degree of coupling, as shown in Figure 7,8.
Claims (2)
1. matrix pattern electric bridge terahertz waveguide directional coupler, it is characterized in that: comprise two main waveguides (1) and four branch-waveguides, article four, branch-waveguide is made up of the branch-waveguide (2) of three longitudinal directions and the branch-waveguide (3) of a transverse direction, article three, the branch-waveguide (2) of longitudinal direction is arranged in the same way, the branch-waveguide (2) of horizontal through three longitudinal directions of branch-waveguide (3); Two main waveguides (1) lay respectively at the two ends of the branch-waveguide (2) of three longitudinal directions, and two main waveguides (1) and four branch-waveguides form matrix pattern structure.
2. matrix pattern electric bridge terahertz waveguide directional coupler according to claim 1, it is characterized in that: the branch-waveguide (2) of described three longitudinal directions be arranged in parallel, end face all flushes and is connected with main waveguide (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520233427.6U CN204516880U (en) | 2015-04-17 | 2015-04-17 | Matrix pattern electric bridge terahertz waveguide directional coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520233427.6U CN204516880U (en) | 2015-04-17 | 2015-04-17 | Matrix pattern electric bridge terahertz waveguide directional coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204516880U true CN204516880U (en) | 2015-07-29 |
Family
ID=53714822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520233427.6U Withdrawn - After Issue CN204516880U (en) | 2015-04-17 | 2015-04-17 | Matrix pattern electric bridge terahertz waveguide directional coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204516880U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810591A (en) * | 2015-04-17 | 2015-07-29 | 中国工程物理研究院电子工程研究所 | Cross-I-shaped bridge terahertz waveguide directional coupler |
| CN106684517A (en) * | 2017-03-01 | 2017-05-17 | 电子科技大学 | Novel broadband 3dB90-degree bridge |
| CN107910627A (en) * | 2017-10-27 | 2018-04-13 | 重庆邮电大学 | H faces slotted waveguide Terahertz directional coupler |
| CN114914655A (en) * | 2022-05-09 | 2022-08-16 | 电子科技大学 | Easy-to-machine terahertz E-plane branch waveguide directional coupler |
-
2015
- 2015-04-17 CN CN201520233427.6U patent/CN204516880U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810591A (en) * | 2015-04-17 | 2015-07-29 | 中国工程物理研究院电子工程研究所 | Cross-I-shaped bridge terahertz waveguide directional coupler |
| CN104810591B (en) * | 2015-04-17 | 2017-06-16 | 中国工程物理研究院电子工程研究所 | Matrix pattern electric bridge terahertz waveguide directional coupler |
| CN106684517A (en) * | 2017-03-01 | 2017-05-17 | 电子科技大学 | Novel broadband 3dB90-degree bridge |
| CN106684517B (en) * | 2017-03-01 | 2020-11-27 | 电子科技大学 | Novel broadband 3dB 90-degree electric bridge |
| CN107910627A (en) * | 2017-10-27 | 2018-04-13 | 重庆邮电大学 | H faces slotted waveguide Terahertz directional coupler |
| CN107910627B (en) * | 2017-10-27 | 2019-12-31 | 重庆邮电大学 | Terahertz directional coupler for H-plane crack waveguide |
| CN114914655A (en) * | 2022-05-09 | 2022-08-16 | 电子科技大学 | Easy-to-machine terahertz E-plane branch waveguide directional coupler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204516880U (en) | Matrix pattern electric bridge terahertz waveguide directional coupler | |
| CN108649308B (en) | Improved terahertz branch waveguide coupler | |
| CN103531874B (en) | Double-passband balun filter | |
| CN106450642B (en) | A kind of porous coupled mode directional coupler of Q-band | |
| CN103762408B (en) | The achiasmate micro-band hybrid ring of a kind of port | |
| CN104810591A (en) | Cross-I-shaped bridge terahertz waveguide directional coupler | |
| CN102290628A (en) | Compact four-way power distributing and synthesizing structure | |
| CN105977598B (en) | The coupling line power splitter of integrated limitation of high harmonics and broadband band-pass filtering function | |
| CN106450643B (en) | E-surface waveguide directional coupler and sixteen-path waveguide power divider applying same | |
| CN105826643A (en) | Half-mode substrate integrated waveguide-based compact six-port circuit | |
| KR20130074356A (en) | Balun circuit using defected ground structure | |
| CN103107403B (en) | Loaded power divider | |
| CN103579732A (en) | Millimeter wave high-isolation 3dB directional coupler | |
| CN104218295A (en) | Waveguide ring bridge | |
| CN104022318A (en) | Multilayer two-mode two-passband balun filter having independent and controllable bandwidth and work frequency | |
| CN104659450A (en) | Broadband differential band-pass filter based on cross resonator | |
| CN204905408U (en) | Ware is divided to broadband waveguide evil spirit T merit | |
| CN206585050U (en) | A kind of V-band broadband waveguide branch directional coupler | |
| CN201638921U (en) | Asymmetric coplanar waveguide directional coupler | |
| CN106410354B (en) | A kind of Q-band barrier type orthomode coupler | |
| CN203644921U (en) | Gysel power dividing filter with high power dividing ratio | |
| CN105489980A (en) | High-isolation low-pass and band-pass triplexer | |
| CN107910627B (en) | Terahertz directional coupler for H-plane crack waveguide | |
| CN203895577U (en) | Band pass filter based on one third equilateral triangle substrate integration waveguide | |
| Rui et al. | Design and simulation of a W-band two-way power divider based on substrate integrated waveguide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150729 Effective date of abandoning: 20170616 |