Multi-dimensional electromagnetic metasurface regulation and control device

Abstract

The utility model discloses a multi-dimensional electromagnetic metasurface regulation and control device, which relates to the technical field of artificial electromagnetic materials and sequentially comprises a double-opening resonant ring structure, an intermediate medium structure and a metal backboard structure from top to bottom. A left side opening ring and a right side opening ring of the double-opening resonance ring structure are the same in structure and shape, and a first resistor and a second resistor which are the same in resistance value are symmetrically embedded in the left side opening ring and the right side opening ring respectively. According to the utility model, through regulating and controlling the resistance values of the first resistor and the second resistor loaded on the double-opening resonant ring structure, the independent regulation and control of the amplitude and the phase during the incidence of orthogonal circularly polarized waves can be respectively realized, the amplitude regulation and control range can cover 0-1, and the phase regulation and control range meets the 0-pi coding requirement; the metasurface regulation and control device realizes multi-dimensional regulation and control of amplitude and phase, and is convenient to apply.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial electromagnetic materials, in particular to a multi-dimensional electromagnetic super surface control device. Background Art

[0002] Amplitude, phase and polarization are the most intuitive manifestations of electromagnetic waves. People have long been exploring methods to control electromagnetic waves and have made great breakthroughs in a single dimension. However, multi-dimensional electromagnetic control inevitably leads to coupling crosstalk and complex structures due to the increase in controllable variables, which makes people look for high-performance multi-dimensional electromagnetic control carriers.

[0003] The emergence of metasurfaces provides a new way to solve this problem; metasurface is a plane composed of a two-dimensional array of subwavelength structural units, which is an extension and expansion of metamaterial research; by producing spatial combinations of metamaterial structural units with different reflection or transmission "phase mutations", the propagation direction, phase, polarization, propagation mode and other characteristics of reflected and transmitted electromagnetic waves can be controlled; compared with traditional materials, due to its unique electromagnetic properties, metasurfaces have extremely high research value in multi-dimensional electromagnetic control.

[0004] However, with the increase in communication user coverage and the increasingly tight spectrum resources, multi-dimensional electromagnetic control within a single channel can no longer meet the needs of modern communications, nor can it help airborne radars and other equipment to achieve integration and miniaturization. Utility Model Content

[0005] The embodiment of the utility model provides a multi-dimensional electromagnetic metasurface control device, which can solve the problem in the prior art that the multi-dimensional electromagnetic control within a single channel can no longer meet the needs of modern communications.

[0006] The utility model provides a multi-dimensional electromagnetic metasurface control device, including a double-open resonant ring structure, wherein the double-open resonant ring structure includes two semi-arc ring structures with opposite opening directions, and the two ends of each semi-arc ring structure are provided with vertical bar structures with opposite extension directions, and the sum of the lengths of the two vertical bar structures on each semi-arc ring structure is less than the sum of the distances between the two ends of each semi-arc ring structure;

[0007] Each semi-arc ring structure is embedded with a first resistor and a second resistor with the same and replaceable resistance, and the first resistor and the second resistor on each semi-arc ring structure are symmetrically arranged about the midline between the two semi-arc ring structures.

[0008] Preferably, it also includes an intermediate medium structure and a metal back plate structure;

[0009] The double open resonant ring structure is arranged on the top surface of the intermediate dielectric structure, and the metal back plate structure is arranged on the bottom surface of the intermediate dielectric structure.

[0010] Preferably, the first resistor embedded in the semi-arc structure on one side of the double open resonant ring structure and the second resistor embedded in the semi-arc structure on the other side are symmetrical about the midline between the two semi-arc ring structures, and the second resistor embedded in the semi-arc structure on one side of the double open resonant ring structure and the first resistor embedded in the semi-arc structure on the other side are symmetrical about the midline between the two semi-arc ring structures.

[0011] Preferably, the first resistor and the second resistor embedded in the semi-arc structure on each side of the double open resonant ring structure are symmetrical about a horizontal midline of the semi-arc structure.

[0012] Preferably, the outer radius and inner radius of the double open resonant ring structure are different, and the inner radius r 1 =3.9mm, outer radius r 2 =4.8mm;

[0013] The opening width of the double open resonant ring structure is w 1 =1.0mm, the width of the ring structure and the vertical stripe structure are both w 2 =0.9mm, and its thickness is 0.035mm.

[0014] Preferably, the arc from the starting end of the first resistor and the starting end of the second resistor to the x-axis is α 1 = 24°, and the arc from the beginning to the end is α 2 =12°.

[0015] Preferably, the intermediate dielectric structure adopts an F4B plate, and its relative dielectric constant is 2.65, the loss tangent is 0.001, and the thickness is h=3.6 mm.

[0016] Preferably, the double open resonant ring structure and the metal backplane structure are both copper structures.

[0017] Preferably, the intermediate medium structure is in the shape of a square, and its length and width are both p=12 mm.

[0018] The embodiment of the utility model provides a multi-dimensional electromagnetic metasurface control device, which has the following beneficial effects compared with the prior art:

[0019] When waves in polarization channels of left-hand circular polarization and right-hand circular polarization orthogonal to each other in the same frequency band are incident on two semi-arc ring structures of a double-open resonant ring structure on a metasurface, the utility model can realize independent regulation of the co-polarization reflection amplitude and phase of the waves in the polarization channels of left-hand circular polarization and right-hand circular polarization by respectively regulating the resistance values ​​of a pair of first resistors and a second resistor loaded on both sides of the double-open resonant ring structure; at the same time, when waves in polarization channels of left-hand circular polarization and right-hand circular polarization orthogonal to each other in different directions are incident on the two semi-arc ring structures of the double-open resonant ring structure on the metasurface, the co-polarization reflection amplitude and phase of the waves in the polarization channels of left-hand circular polarization and right-hand circular polarization in different directions can be independently regulated by independently regulating the resistance values ​​of the first resistor and the second resistor loaded on both sides of the double-open resonant ring structure, so as to realize multi-dimensional electromagnetic regulation in different channels, and the amplitude regulation range can cover 0 to 1, and the phase regulation range meets the coding requirements of 0 to π.

[0020] In addition, the double open resonant ring structure is arranged on the top surface of the intermediate dielectric structure, and the metal back plate is arranged on the bottom surface of the intermediate dielectric structure. When the double open resonant ring structure reflects a part of the incident circularly polarized wave, the metal back plate can completely reflect the remaining incident circularly polarized wave.

[0021] Moreover, the amplitude and phase of the electromagnetic wave in the dual-polarization channel can be independently controlled. Therefore, the carrying capacity of the entire device is twice that of the single-polarization channel, and it has electromagnetic characteristics that can work under any polarization wave. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the overall structure of a multi-dimensional electromagnetic metasurface control device provided in an embodiment of the utility model;

[0023] Figure 2 A front view of a multi-dimensional electromagnetic metasurface control device provided by an embodiment of the utility model;

[0024] Figure 3 A surface current distribution diagram of a multi-dimensional electromagnetic metasurface control device provided in an embodiment of the utility model; wherein: (a) is the surface current distribution under the incidence of left-hand circularly polarized wave; (b) is the surface current distribution under the incidence of right-hand circularly polarized wave.

[0025] Figure 4A schematic diagram of the amplitude and phase response of a multidimensional electromagnetic metasurface control device under orthogonal circular polarization incidence when the resistance values ​​of a first pair of resistors with the same resistance value are different is provided for an embodiment of the utility model; wherein: (a) is the co-polarization reflection amplitude under the incidence of left-hand circularly polarized wave; (b) is the co-polarization reflection phase under the incidence of left-hand circularly polarized wave; (c) is the co-polarization reflection amplitude under the incidence of right-hand circularly polarized wave; (d) is the co-polarization reflection phase under the incidence of right-hand circularly polarized wave.

[0026] Figure 5 A schematic diagram of the amplitude and phase response of a multidimensional electromagnetic metasurface control device under orthogonal circular polarization incidence when the resistance values ​​of a second pair of resistors with the same resistance value are different for the utility model embodiment; wherein: (a) is the co-polarization reflection amplitude under the incidence of left-hand circularly polarized wave; (b) is the co-polarization reflection phase under the incidence of left-hand circularly polarized wave; (c) is the co-polarization reflection amplitude under the incidence of right-hand circularly polarized wave; (d) is the co-polarization reflection phase under the incidence of right-hand circularly polarized wave.

[0027] Wherein: 10, double open resonant ring structure, 11, intermediate medium structure, 12, metal back plate structure, 101, first resistor, 102, second resistor. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0034] See also Figure 1 The embodiment of the utility model provides a multi-dimensional electromagnetic metasurface control device, which includes, from top to bottom, a double open resonant ring structure 10, an intermediate medium structure 11, and a metal backplane structure 12; the left and right open rings of the double empty resonant ring structure 10 have the same structural shape, and the left and right open ring structures thereof are symmetrically embedded with two pairs of first resistors 101 and second resistors 102 with the same resistance value about the x-axis and the y-axis.

[0035] Among them, when left-hand circularly polarized waves and right-hand circularly polarized waves with the same frequency band and orthogonal to each other are incident, the co-polarized reflection amplitude and phase of the left-hand circularly polarized waves and the right-hand circularly polarized waves can be adjusted respectively by changing the resistance values ​​of two pairs of resistors with the same resistance values.

[0036] like Figure 2 As shown, it is a front view of an embodiment of the utility model, and the outer radius of the double open resonant ring structure 10 is r 2 =4.8mm, inner radius is r 1 =3.9mm, its opening width is w 1 =1.0mm, the width of the ring structure and the vertical stripe structure is w 2 =0.9mm.

[0037] The first pair of first resistors 101 with the same resistance value and the second pair of second resistors 102 with the same resistance value are symmetrical about the y-axis, wherein the arc from the upper end of the first resistor 101 with the same resistance value to the x-axis is α 1 = 24°, and the arc from the beginning to the end is α 2 =12°, and the remaining resistors are symmetrically distributed about the x-axis, y-axis or center of the circle.

[0038] The length and width of the intermediate medium structure 11 are both p=12 mm.

[0039] The metal back plate structure 12 is used to completely reflect the incident circularly polarized wave.

[0040] Except for two pairs of resistors with the same resistance value, the other materials of the double open resonant ring structure 10 are copper, and the thickness is 0.035 mm.

[0041] The intermediate dielectric structure 11 uses a F4B board, the relative dielectric constant of the F4B board is 2.65, the loss tangent is 0.001, and the thickness is h=3.6 mm.

[0042] like Figure 3 (a) to (b) are surface current distribution diagrams of the double open resonant ring under the incidence of orthogonal circularly polarized waves in the embodiment of the utility model. It can be seen that the surface current of the double open resonant ring under the incidence of the two polarized waves is distributed in a mirror-symmetrical manner about the y-axis, and corresponds one-to-one to the loading positions of the two pairs of resistors with the same combination, respectively, indicating that the amplitude and phase response under the incidence of orthogonal circularly polarized waves can be regulated by the resistance values ​​of the two pairs of resistors with the same resistance values.

[0043] like Figure 4(a) to (b) are schematic diagrams of the co-polarized reflection amplitude and phase response of the metasurface control device under the incidence of left-handed circularly polarized wave in an embodiment of the utility model when the resistance of the first pair of resistors with the same resistance value is different; it can be seen that the resistance of the first pair of resistors with the same resistance value gradually increases from 1Ω to 10000Ω, and the amplitude of the left-handed circularly polarized co-polarized reflected wave first decreases and then increases in the range of 8-13GHz, and the phase difference undergoes a sudden change of 180°, which can be used to achieve corresponding amplitude and phase coding control.

[0044] like Figure 4 (c) to (d) are schematic diagrams of the co-polarized reflection amplitude and phase response of the metasurface control device under the incident left-handed circularly polarized wave of an embodiment of the utility model when the resistance of the first pair of resistors with the same resistance value is different; it can be seen that the resistance of the first pair of resistors with the same resistance value gradually increases from 1Ω to 10000Ω, and the amplitude of the right-handed circularly polarized co-polarized reflected wave is above 0.95 in the range of 8-13GHz, and the phases are all kept constant, indicating good polarization isolation characteristics when orthogonal circularly polarized waves are incident.

[0045] like Figure 5 (a) to (b) are schematic diagrams of the co-polarized reflection amplitude and phase response of the metasurface control device under the incident left-handed circularly polarized wave of an embodiment of the utility model when the second pair of resistors with the same resistance value have different resistance values; it can be seen that the resistance value of the second pair of resistors with the same resistance value gradually increases from 1Ω to 10000Ω, and the amplitude of the left-handed circularly polarized co-polarized reflected wave is above 0.95 in the range of 8-13GHz, and the phases are all kept constant, indicating good polarization isolation characteristics when orthogonal circularly polarized waves are incident.

[0046] like Figure 5 (c) to (d) are schematic diagrams of the co-polarized reflection amplitude and phase response of the metasurface control device under the incident left-hand circularly polarized wave of an embodiment of the utility model when the second pair of resistors with the same resistance value has different resistance values; it can be seen that the resistance value of the second pair of resistors with the same resistance value gradually increases from 1Ω to 10000Ω, and the amplitude of the right-hand circularly polarized co-polarized reflected wave first decreases and then increases in the range of 8-13GHz, and at the same time, the phase difference undergoes a sudden change of 180°, which can be used to achieve corresponding amplitude and phase coding control.

[0047] The utility model realizes the rapid construction of a multi-dimensional electromagnetic metasurface control device by designing the relationship between the resistance value and the unit structure, so that the overall structure has a certain stability and a simple architecture, which is convenient for batch processing and application.

[0048] The utility model can utilize the amplitude and phase of orthogonal circularly polarized waves under incident conditions for coding design, and according to antenna coding theory, can construct the generation of complex beams in any space, greatly improving the channel capacity during electromagnetic wave transmission.

[0049] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A multi-dimensional electromagnetic metasurface control device, characterized in that: include: A double open resonant ring structure (10), the double open resonant ring structure (10) comprising two semi-arc ring structures with opening directions opposite to each other, two ends of each semi-arc ring structure being provided with vertical bar structures with extension directions opposite to each other, and the sum of the lengths of the two vertical bar structures on each semi-arc ring structure being less than the sum of the distances between the two ends of each semi-arc ring structure; A first resistor (101) and a second resistor (102) having the same resistance value and replaceable resistance value are embedded in each semi-arc ring structure, and the first resistor (101) and the second resistor (102) on each semi-arc ring structure are symmetrically arranged about a midline between the two semi-arc ring structures.

2. A multi-dimensional electromagnetic metasurface control device according to claim 1, characterized in that: It also includes an intermediate medium structure (11) and a metal back plate structure (12); The double-open resonant ring structure (10) is arranged on the top surface of the intermediate dielectric structure (11), and the metal back plate structure (12) is arranged on the bottom surface of the intermediate dielectric structure (11).

3. A multi-dimensional electromagnetic metasurface control device according to claim 1, characterized in that: The first resistor (101) embedded in the semi-arc structure on one side of the double open resonant ring structure (10) and the second resistor (102) embedded in the semi-arc structure on the other side are symmetrical about a center line between the two semi-arc ring structures, and the second resistor (102) embedded in the semi-arc structure on one side of the double open resonant ring structure (10) and the first resistor (101) embedded in the semi-arc structure on the other side are symmetrical about a center line between the two semi-arc ring structures.

4. The multi-dimensional electromagnetic metasurface control device according to claim 1, characterized in that: The first resistor (101) and the second resistor (102) embedded in the semi-arc-shaped structure on each side of the double open resonant ring structure (10) are symmetrical about the horizontal midline of the semi-arc-shaped structure.

5. The multi-dimensional electromagnetic metasurface control device according to claim 1, characterized in that: The outer radius and inner radius of the double open resonant ring structure (10) are different, and the inner radius r1=3.9 mm, and the outer radius r2=4.8 mm; The opening width of the double open resonant ring structure (10) is w1=1.0 mm, the width of its ring structure and vertical stripe structure are both w2=0.9 mm, and its thickness is 0.035 mm.

6. The multi-dimensional electromagnetic metasurface control device according to claim 1, characterized in that: The arc angles from the start end to the x-axis of the first resistor (101) and the second resistor (102) are both α1=24°, and the arc angles from the start end to the end end are α2=12°.

7. The multi-dimensional electromagnetic metasurface control device according to claim 2, characterized in that: The intermediate dielectric structure (11) adopts an F4B plate, and its relative dielectric constant is 2.65, the loss tangent is 0.001, and the thickness is h=3.6 mm.

8. The multi-dimensional electromagnetic metasurface control device according to claim 2, characterized in that: The double open resonant ring structure (10) and the metal back plate structure (12) both adopt copper structures.

9. The multi-dimensional electromagnetic metasurface control device according to claim 2, characterized in that: The intermediate medium structure (11) is in the shape of a square, and its length and width are both p=12 mm.

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