阅读说明：本技术 一种基于石墨烯复合超表面的太赫兹可调极化转换器 (Terahertz adjustable polarization converter based on graphene composite super surface ) 是由 陈名松 田硕 周奕捷 李孜涵 周晓燕 于 2021-02-02 设计创作，主要内容包括：本发明提供一种基于石墨烯复合超表面的太赫兹可调极化转换器,包括超表面单元、谐振机构和调节机构,所述谐振结构板的顶部固定连接有固定销,所述固定销的外侧转动连接有第一金属杆,所述第一金属杆通过活动销转动连接有第二金属杆；所述连杆远离活动杆的一端与活动板的一端转动连接,所述推杆远离连板的一端与第一金属杆的一侧固定连接。本发明通过推动滑杆带动活动杆进行转动,活动杆可通过连杆带动活动板进行转动,活动板转动可通过连板带动滑板进行移动,滑板移动可通过连块带动推杆进行移动,进而可方便对第一金属杆和第二金属杆之间的角度进行调节,进而可达到极化可调的效果。(The invention provides a terahertz adjustable polarization converter based on a graphene composite super surface, which comprises a super surface unit, a resonance mechanism and an adjusting mechanism, wherein the top of a resonance structure plate is fixedly connected with a fixing pin, the outer side of the fixing pin is rotatably connected with a first metal rod, and the first metal rod is rotatably connected with a second metal rod through a movable pin; one end of the connecting rod, far away from the movable rod, is rotatably connected with one end of the movable plate, and one end of the push rod, far away from the connecting plate, is fixedly connected with one side of the first metal rod. The movable rod is driven to rotate by pushing the sliding rod, the movable rod can drive the movable plate to rotate through the connecting rod, the movable plate can drive the sliding plate to move by rotating the connecting plate, the sliding plate can drive the push rod to move by moving the connecting block, and therefore the angle between the first metal rod and the second metal rod can be conveniently adjusted, and the effect of polarization adjustment can be achieved.)

1. The utility model provides a terahertz is adjustable polarization converter now based on compound super surface of graphite alkene which characterized in that includes:

a super surface unit (1);

the resonance mechanism (2) is located at the top of the super-surface unit (1), the resonance mechanism (2) comprises a resonance structure plate (21), a fixed pin (22), a first metal rod (23), a second metal rod (24) and a movable pin (25), the resonance structure plate (21) is arranged at the top of the super-surface unit (1), the fixed pin (22) is fixedly connected to the top of the resonance structure plate (21), the first metal rod (23) is rotatably connected to the outer side of the fixed pin (22), and the second metal rod (24) is rotatably connected to the first metal rod (23) through the movable pin (25);

adjusting mechanism (6), adjusting mechanism (6) includes regulating box (61), slide bar (62), movable rod (63), connecting rod (64), fly leaf (65), even board (66), slide plate (67), even piece (68) and push rod (69), the inside of regulating box (61) and the outside sliding connection of slide bar (62), the one end of slide bar (62) rotates with the one end of movable rod (63) to be connected, the one end that slide bar (62) was kept away from in movable rod (63) rotates with the one end of connecting rod (64) to be connected, the one end that movable rod (63) was kept away from in connecting rod (64) rotates with the one end of fly leaf (65) to be connected, the one end that connecting rod (64) was kept away from in fly leaf (65) rotates with one side of even board (66) to be connected, even board (66) keep away from one end of fly leaf (65) and one side fixed connection of slide plate (67), the top of slide plate (67) one side and one side fixed connection of even piece (68), one side of the connecting block (68) far away from the sliding plate (67) is fixedly connected with one end of a push rod (69), and one end of the push rod (69) far away from the connecting block (68) is fixedly connected with one side of the first metal rod (23).

2. The terahertz tunable polarization converter based on the graphene composite super surface is characterized in that a dielectric substrate (3) is arranged at the bottom of the super surface unit (1), and a graphene layer (4) is arranged at the bottom of the dielectric substrate (3).

3. The terahertz tunable polarization converter based on the graphene composite super surface is characterized in that a metal bottom plate (5) is arranged at the bottom of the graphene layer (4), and one side of the metal bottom plate (5) is fixedly connected with the bottom of one side of the adjusting box (61).

4. The terahertz adjustable polarization converter based on graphene composite super-surface according to claim 1, wherein a first fixed column (7) is fixedly connected to one side of the inner wall of the adjusting box (61), and one end of the first fixed column (7) is rotatably connected with the outer side of the movable rod (63).

5. The terahertz tunable polarization converter based on the graphene composite super surface is characterized in that a spring (8) is fixedly connected to one side of the inner wall of the adjusting box (61), and one end of the spring (8) is fixedly connected to one side of the movable rod (63).

6. The terahertz tunable polarization converter based on the graphene composite super surface is characterized in that a second fixed column (9) is fixedly connected to one side of the inner wall of the adjusting box (61), one end of the second fixed column (9) is rotatably connected to the outer side of the movable plate (65), a through groove (13) matched with the sliding plate (67) is formed in the top of the adjusting box (61), and the outer side of the sliding plate (67) is slidably connected to the inner wall of the through groove (13).

7. The terahertz adjustable polarization converter based on graphene composite super-surface according to claim 1, wherein a fixed block (10) is fixedly connected to one side of the inner wall of the adjusting box (61), a sliding block (11) is fixedly connected to the bottom of the sliding plate (67), a sliding groove (12) matched with the sliding block (11) for use is formed in the top of the fixed block (10), and the outer side of the sliding block (11) is slidably connected with the inner wall of the sliding groove (12).

Technical Field

The invention relates to the field of terahertz, in particular to a terahertz adjustable polarization converter based on a graphene composite super surface.

Background

The metamaterial polarization converter is a periodically arranged artificially designed material and can be described by the effective dielectric constant and the magnetic permeability of the material, the development direction of the metamaterial polarization converter is to overcome various problems, and the metamaterial polarization converter is combined with equipment such as communication devices, motors and electric appliances, so that the metamaterial polarization converter which is miniaturized, multifunctional, low in cost and capable of being produced in a large area is designed, and the diversified requirements in the aspect of practical application are met. The metamaterial polarization converter has important application in a plurality of aspects such as a polarizing film, a detector, a stealth and a surface heat transmitter, and particularly in application of terahertz detection, double harvest is brought to economy and environment, polarization of electromagnetic waves is one of basic characteristics of the metamaterial polarization converter, the polarization can be divided into linear polarization, circular polarization and elliptical polarization according to types, in practical application, the electromagnetic waves are often orthogonally decomposed into main polarization and orthogonal polarization, and for different systems, the polarization requirements of the electromagnetic waves are often different, for example, satellite communication uses circularly polarized electromagnetic waves, and a radar detection system adopts two orthogonal linear polarizations or two orthogonal circularly polarized electromagnetic waves for detection scanning and the like.

However, when some existing super-surface terahertz adjustable polarization converters are used, due to the fact that the polarization state is not convenient to adjust, certain use limitation exists, and then the regulation and control of the polarization conversion state of the electromagnetic waves cannot be achieved, and the use requirements of users cannot be met.

Therefore, the terahertz tunable polarization converter based on the graphene composite super surface is provided.

Disclosure of Invention

The invention aims to provide a terahertz tunable polarization converter based on a graphene composite super surface, so as to solve the problems in the background technology.

The invention provides a terahertz tunable polarization converter based on a graphene composite super surface, which comprises a super surface unit, a resonance mechanism and a regulating mechanism, wherein the resonance mechanism is positioned at the top of the super surface unit and comprises a resonance structure plate, a fixing pin, a first metal rod, a second metal rod and a movable pin, the resonance structure plate is arranged at the top of the super surface unit, the fixing pin is fixedly connected to the top of the resonance structure plate, the first metal rod is rotatably connected to the outer side of the fixing pin, and the second metal rod is rotatably connected to the first metal rod through the movable pin; adjustment mechanism includes regulating box, slide bar, movable rod, connecting rod, fly leaf, even board, slide, even piece and push rod, the inside of regulating box and the outside sliding connection of slide bar, the one end of slide bar is rotated with the one end of movable rod and is connected, the one end that the slide bar was kept away from to the movable rod is rotated with the one end of connecting rod and is connected, the one end that the movable rod was kept away from to the connecting rod is rotated with the one end of fly leaf and is connected, the one end that the connecting rod was kept away from to the fly leaf rotates with one side of even board and is connected, even one side fixed connection of one end and slide that the one end of fly leaf was kept away from to the board, the top of slide one side and one side fixed connection of even piece, the one side fixed connection of slide and push rod is kept away from to the push.

Preferably, a dielectric substrate is arranged at the bottom of the super-surface unit, and a graphene layer is arranged at the bottom of the dielectric substrate.

Preferably, a metal bottom plate is arranged at the bottom of the graphene layer, and one side of the metal bottom plate is fixedly connected with the bottom of one side of the adjusting box.

Preferably, one side fixedly connected with first fixed column of regulating box inner wall, the one end of first fixed column rotates with the outside of movable rod to be connected.

Preferably, one side of adjusting box inner wall fixedly connected with spring, the one end of spring and one side fixed connection of movable rod.

Preferably, one side of the inner wall of the adjusting box is fixedly connected with a second fixing column, one end of the second fixing column is rotatably connected with the outer side of the movable plate, a through groove matched with the sliding plate is formed in the top of the adjusting box, and the outer side of the sliding plate is slidably connected with the inner wall of the through groove.

Preferably, one side fixedly connected with fixed block of regulating box inner wall, the bottom fixedly connected with slider of slide, the spout that uses with the slider cooperation is seted up at the top of fixed block, the outside of slider and the inner wall sliding connection of spout.

Compared with the prior art, the invention has the beneficial effects that:

1. the movable rod is driven to rotate by pushing the sliding rod, the movable rod can drive the movable plate to rotate by the connecting rod, the movable plate can drive the sliding plate to move by the connecting plate, the sliding plate can drive the push rod to move by the connecting block, so that the angle between the first metal rod and the second metal rod can be conveniently adjusted, and further the polarization adjustable effect can be achieved, and the problems that the polarization state of electromagnetic waves cannot be adjusted and controlled due to the fact that the polarization state is not convenient to adjust when the existing terahertz adjustable polarization converters with super-surfaces are used are solved;

2. the graphene layer is arranged, so that electromagnetic coupling between the resonance structure plate and the metal bottom plate can be regulated, dynamic adjustment of the polarization state of incident electromagnetic waves is realized, the adjusting box can be conveniently fixed by arranging the metal bottom plate, the stability of the adjusting box is improved, the first fixing column is arranged, so that the movable rod can conveniently rotate at one end of the first fixing column, and the connecting rod can be driven to move;

3. the movable rod can be conveniently reset after rotating by arranging the spring, the movable plate can be conveniently rotated by arranging the second fixed column, the sliding plate can be conveniently slid in the through groove by arranging the through groove, the stability of the sliding plate during moving is improved, and the sliding plate can be further conveniently slid by arranging the fixed block, the sliding block and the sliding groove.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the structure of the adjusting box of FIG. 1 according to the present invention;

FIG. 3 is a top view of the resonant structure panel of FIG. 2 according to the present invention;

fig. 4 is an enlarged view of the structure at a in fig. 2 according to the present invention.

Reference numbers in the figures: 1. a super-surface unit; 2. a resonance mechanism; 21. a resonant structure panel; 22. a fixing pin; 23. a first metal rod; 24. a second metal rod; 25. a movable pin; 3. a dielectric substrate; 4. a graphene layer; 5. a metal base plate; 6. an adjustment mechanism; 61. an adjusting box; 62. a slide bar; 63. a movable rod; 64. a connecting rod; 65. a movable plate; 66. connecting plates; 67. a slide plate; 68. connecting blocks; 69. a push rod; 7. a first fixed column; 8. a spring; 9. a second fixed column; 10. a fixed block; 11. a slider; 12. a chute; 13. a through groove.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 1 is a schematic structural diagram of the present invention, fig. 2 is a cross-sectional structural view of the adjusting box shown in fig. 1 of the present invention, fig. 3 is a top structural view of the resonant structural plate shown in fig. 2 of the present invention, and fig. 4 is an enlarged schematic structural diagram at a point a in fig. 2 of the present invention. The utility model provides a terahertz is adjustable polarizes converter now based on compound super surface of graphite alkene, including super surface unit 1, resonance mechanism 2 and adjustment mechanism 6, resonance mechanism 2 is located super surface unit 1's top, resonance mechanism 2 includes resonance structure board 21, fixed pin 22, first metal pole 23, second metal pole 24 and movable pin 25, resonance structure board 21 sets up at super surface unit 1's top, resonance structure board 21's top fixedly connected with fixed pin 22, the outside of fixed pin 22 rotates and is connected with first metal pole 23, first metal pole 23 rotates through movable pin 25 and is connected with second metal pole 24; the adjusting mechanism 6 comprises an adjusting box 61, a sliding rod 62, a movable rod 63, a connecting rod 64, a movable plate 65, a connecting plate 66, a sliding plate 67, a connecting block 68 and a push rod 69, wherein the inside of the adjusting box 61 is connected with the outer side of the sliding rod 62 in a sliding manner, one end of the sliding rod 62 is connected with one end of the movable rod 63 in a rotating manner, one end of the movable rod 63, which is far away from the sliding rod 62, is connected with one end of the connecting rod 64 in a rotating manner, one end of the connecting rod 64, which is far away from the movable rod 63, is connected with one end of the movable plate 65 in a rotating manner, one end of the movable plate 65, which is far away from the movable plate 66, is fixedly connected with one side of the sliding plate 67, the top of one side of the sliding plate 67 is fixedly connected with one side of the connecting block 68, which is far.

Further, the bottom of the super-surface unit 1 is provided with the dielectric substrate 3, the bottom of the dielectric substrate 3 is provided with the graphene layer 4, and by arranging the graphene layer, electromagnetic coupling between the resonance structure plate 21 and the metal base plate 5 can be regulated, so that the polarization state of incident electromagnetic waves can be dynamically adjusted.

Further, the bottom on graphite alkene layer 4 is provided with metal soleplate 5, and one side of metal soleplate 5 and the bottom fixed connection of regulating box 61 one side can conveniently fix regulating box 61 through setting up metal soleplate 5, have improved the stability of regulating box 61.

Further, the first fixed column 7 of one side fixedly connected with of regulating box 61 inner wall, the one end of first fixed column 7 is rotated with the outside of movable rod 63 and is connected, through setting up first fixed column 7, can make things convenient for movable rod 63 to rotate in the one end of first fixed column 7, and then can drive connecting rod 64 and remove.

Further, one side fixedly connected with spring 8 of regulating box 61 inner wall, one end of spring 8 and one side fixed connection of movable rod 63 can make things convenient for movable rod 63 to reset after rotating through setting up spring 8.

Further, one side fixedly connected with second fixed column 9 of regulating box 61 inner wall, the one end of second fixed column 9 rotates with the outside of fly leaf 65 to be connected, logical groove 13 that uses with the cooperation of slide 67 is seted up at the top of regulating box 61, the outside of slide 67 and the inner wall sliding connection who leads to groove 13, through setting up second fixed column 9, can make things convenient for fly leaf 65 to rotate, and through setting up logical groove 13, can make things convenient for slide 67 to slide in the inside that leads to groove 13, the stability of slide 67 when removing has been improved.

Further, one side fixedly connected with fixed block 10 of regulating box 61 inner wall, the bottom fixedly connected with slider 11 of slide 67, the spout 12 of using with the slider 11 cooperation is seted up at the top of fixed block 10, the outside of slider 11 and the inner wall sliding connection of spout 12, through setting up fixed block 10, slider 11 and spout 12, can be further make things convenient for slide 67 to slide.

The working principle of the terahertz adjustable polarization converter based on the graphene composite super surface provided by the invention is as follows:

when the polarization needs to be adjusted, the optimal conversion effect can be achieved by adjusting the relative angle between the first metal rod 23 and the second metal rod 24, the sliding rod 62 can be pushed to slide, the sliding rod 62 can push one end of the movable rod 63 to rotate, the movable rod 63 can drive the connecting rod 64 to move, the connecting rod 64 can drive the movable plate 65 to rotate, the movable plate 65 can drive the connecting plate 66 to move, the connecting plate 66 can drive the sliding plate 67 to move, the sliding plate 67 can drive the connecting block 68 to move, the connecting block 68 can drive the push rod 69 to move, the first metal rod 23 can be pushed, the first metal rod 23 is rotatably connected with the second metal rod 24, the angle between the first metal rod 23 and the second metal rod 24 can be adjusted, when the included angle between the first metal rod 23 and the second metal rod 24 is forty-five degrees, the optimal polarization conversion effect can be realized, and the operation is convenient.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.