Structure for generating half-half-half pairs based on symmetry regulation and control principle

Abstract

The invention belongs to the technical field of surface plasmon photonics and singular point electromagnetism / optics, and particularly relates to a structure for generating half-half-half pairs based on a symmetry regulation and control principle. Comprising a dual-port feed network, and a periodic zigzag structure, a first dielectric base layer, a second dielectric base layer, a metal ground and a third dielectric base layer which are sequentially arranged from top to bottom, and the dual-port feed network comprises a first radiation dipole, a second radiation dipole, a first microstrip line, a first transmission line, a second transmission line and a phase regulation and control section. An electromagnetic signal is led in through the first microstrip line and then generates a phase difference in the phase regulation and control section, and energy is radiated to the periodic zigzag structure to realize an incident field with specific symmetry, so that the periodic zigzag structure is excited to generate half-sub-sub-half-sub-sub-half pairs. According to the invention, the periodic zigzag structure can be excited to generate low-order and even high-order localized topology stable half-sub-inverse half-sub pairs carrying specific orbital angular momentum.

Description

Technical Field

[0001] The present invention belongs to the fields of surface plasmon photonics and singular point electromagnetics / optical technology, and relates to a structure for generating a plasmon-anti-platinon pair based on a symmetry control principle. Background Art

[0002] The quark-antiquark pair is a special field configuration. It was first discovered as a soliton solution to the SU(2) Yang-Mills equation, which can explain the quark confinement phenomenon in protons. Later, the quark-antiquark pair was extended to the magnetic spin wave system in condensed matter physics as a topological defect of a generalized wave field.

[0003] Conventional optical topological structures, such as skyrmions, have long faced multiple technical bottlenecks, hindering their precise control to produce novel topological quasiparticle structures similar to skyrmion-antiskyrmion pairs. Restricted by the diffraction limit, traditional structures struggle to achieve deep subwavelength-scale optical field localization, limiting their integration density in nanophotonic devices. For example, while magnetic skyrmion systems can achieve topological defect control, their physical dimensions are typically on the micrometer scale, which cannot meet the miniaturization requirements of modern photonic chips. Furthermore, precise control of topological charge relies on empirical design and lacks systematic theoretical support.

[0004] Existing methods often achieve topological charge control through trial-and-error adjustments of geometric parameters, but these methods struggle to surpass the upper limit of skyrmions' topological charge and cannot achieve the coexistence of multiple topological states. Furthermore, conventional optical systems have yet to address the controllable excitation of isolated skyrmion-antiskyrmion pairs. In magnetic systems, skyrmion-antiskyrmion pairs rely on topological charge conservation mechanisms for their generation. However, due to the lack of symmetry protection and the coordinated design of orbital angular momentum (OAM) in optical systems, the excitation and control of such topological defects remains a challenge.

[0005] Surface plasmons, such as localized surface plasmons (LSPs), are considered a key technology for addressing these challenges due to their diffraction-limited field localization. However, existing LSP structures, such as periodic zigzag structures, still suffer from limitations such as limited functionality, insufficient topological stability, and insufficient deep subwavelength localization, making them incapable of forming localized, topologically stable sparion-antisparion pairs. Summary of the Invention

[0006] The present invention provides a structure for generating a semin-anti-semin pair based on the symmetry control principle, which solves the above-mentioned technical problems.

[0007] To achieve the above objectives, the specific technical solutions provided by the present invention are as follows: A structure for generating a semi-particle-anti-semi-particle pair based on the principle of symmetry regulation, comprising: A dual-port feeding network and a periodic sawtooth structure, a first dielectric base layer, a second dielectric base layer, a metal ground, and a third dielectric base layer arranged in sequence from top to bottom, wherein the periodic sawtooth structure is a metal conductive material and is arranged on the first dielectric base layer, and the dual-port feeding network includes: A first radiating dipole and a second radiating dipole having the same structure, the first radiating dipole and the second radiating dipole being arranged on the second dielectric substrate at a predetermined angle; A first microstrip line is provided on the bottom surface of the third dielectric substrate and is used for transmitting electromagnetic signals; a phase control section, disposed on the bottom surface of the third dielectric substrate, for generating a phase difference between the electromagnetic signals of the first branch and the second branch, the phase control section comprising a first branch and a second branch of different lengths, the input ends of the first branch and the second branch being connected to the first microstrip line, and the output ends of the first branch and the second branch being connected to the first radiating dipole and the second radiating dipole respectively through the metal ground and the second dielectric substrate in sequence; A first transmission line and a second transmission line, one end of each of which is arranged on both sides of the first microstrip line, and the other end of each of which is connected to a metal ground; After the electromagnetic signal is introduced through the first microstrip line, a phase difference is generated in the phase control section. The first radiating dipole and the second radiating dipole radiate energy to the periodic zigzag structure to realize an incident field with a specific symmetry, thereby exciting the periodic zigzag structure to generate a semion-anti-semion pair.

[0008] Furthermore, the phase difference between the first branch and the second branch complies with the following principle: , in, is the orbital index, is the phase difference between the first branch and the second branch, is the absolute skyrmion number of a schizont-antischizont pair.

[0009] Furthermore, the first branch includes a third transmission line in a straight line, one end of the third transmission line is connected to the first microstrip line, and the other end is connected to the first radiating dipole; the second branch includes a plurality of rectangular tooth-shaped fourth transmission lines connected end to end in sequence, and the free ends of the two outermost fourth transmission lines are respectively connected to the first microstrip line and the second radiating dipole.

[0010] Furthermore, the periodic sawtooth structure includes a circular ring and a plurality of sector-shaped area blocks arranged on the circular ring, and the plurality of sector-shaped area blocks are distributed in a circular array.

[0011] Furthermore, there are 8 fan-shaped area blocks, and the inner diameter of the fan-shaped area blocks is 4.0 mm and the outer diameter is 18.0 mm.

[0012] Furthermore, the periodic serrated structure 1, the first microstrip line, the phase control segment, the first transmission line, the second transmission line, the first radiating dipole and the second radiating dipole are all pure copper film structures prepared by a printed circuit board process, and the pure copper film structure is coated with a tin-plated layer for enhancing conductivity.

[0013] Furthermore, the dielectric constants of the first dielectric base layer, the second dielectric base layer and the third dielectric base layer are .

[0014] Compared with the prior art, the present invention provides a structure for generating a skyrmion-antiskyrmion pair based on the principle of symmetry control. After the electromagnetic signal is introduced through the first microstrip line, a phase difference is generated in the phase control section. The first radiating dipole and the second radiating dipole radiate energy to the periodic zigzag structure to achieve a specific symmetric incident field, thereby stimulating the periodic zigzag structure to generate low-order or even high-order localized topologically stable skyrmion-antiskyrmion pairs carrying specific orbital angular momentum. In addition, the absolute skyrmion number can be achieved under different structural parameters. The precise control of the skyrmion breaks through the topological charge limitation of the traditional skyrmion, and through the chirality-OAM locking mechanism, the irreducible parity symbol ( ) Locking the chirality of the semi-particle / anti-semi-particle and the direction of OAM ( to ), to achieve directional coupling. Experimental verification of the local scale of the light field , which is more than three times higher than the traditional LSP structure, and supports the coexistence of electric field harmonic semi-ons, magnetic field target semi-ons and spin-steady-state semi-ons, providing a theoretical basis for multifunctional integrated photonic devices, with significant cost advantages and large-scale manufacturing potential, providing important support for the future research and development of multifunctional integrated photonic devices, and can also be extended to terahertz and optical frequency bands, opening up new application scenarios for cutting-edge fields such as optical sensing, topological photonics chips and quantum information processing. It is highly practical and worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic structural diagram of the first dielectric base layer of the present invention.

[0017] Figure 3 Illustration of plasma quarks, antiquarks, and quark-antquark pairs emitted from a metallic periodic zigzag structure according to an embodiment of the present invention.

[0018] Figure 4The emission spectra of LSP excited by a point source provided in the embodiment of the present invention are as follows: the four irreducible representations are excited at 1.22 GHz, 2.28 GHz, 3.06 GHz and 3.32 GHz, respectively.

[0019] Figure 5 The normalized field distribution diagram of the electric field harmonic semion-antisemion pair shows different two-dimensional irreducible representations ( ) corresponds to the vector field distribution of topological charge (1-3) and orbital angular momentum.

[0020] Figure 6 is the normalized field distribution diagram of the magnetic field target type semion-antisemion pair, verifying the radial Phase reversal characteristics and controllability of the absolute skyrmion number (1-3).

[0021] Figure 7 Schematic diagram of the topological structure of a stable spin-antispin pair provided in an embodiment of the present invention, showing the chirality-parity locking effect and energy localization boundary of the isolated (anti)spin in the spin texture.

[0022] Figure 8 The embodiment of the present invention provides Schematic diagram of the distribution of irreducible representation electric field harmonic semion-antisemion pairs, showing the octupole mode and the absence of orbital angular momentum.

[0023] Figure 9 The double degeneracy provided by the embodiment of the present invention Analysis diagrams of irreducible phase and polarization singularities, including the phase distribution of the scalar electromagnetic field vortex field (a, c) and the V-point and C-point singularity distribution of the polarized electromagnetic field vortex nest (b, d).

[0024] Figure 10 The double degeneracy provided by the embodiment of the present invention Analysis diagrams of irreducible phase and polarization singularities, including the phase distribution of the scalar electromagnetic field vortex field (a, c) and the V-point and C-point singularity distribution of the polarized electromagnetic field vortex nest (b, d).

[0025] Figure 11 The double degeneracy provided by the embodiment of the present invention Analysis diagrams of irreducible phase and polarization singularities, including the phase distribution of the scalar electromagnetic field vortex field (a, c) and the V-point and C-point singularity distribution of the polarized electromagnetic field vortex nest (b, d).

[0026] Figure 12 The experimental verification result diagram provided for the embodiment of the present invention includes the sample's measured near-field electric field Component phase distribution (d) and simulation-experiment comparison spectrum (c) verify the directional excitation of topological charge and OAM. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand and implement the technical solution of the present invention, the technical solution of the present invention will be clearly and fully described below with reference to the accompanying drawings.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0029] In addition, it should be further explained that in the description of the embodiments of the present invention, unless otherwise specified, " / " means or, for example, A / B can mean A or B: "and / or" in the text is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present invention, "multiple" refers to two or more than two.

[0030] The terms "first," "second," "third," and "fourth" below are used for descriptive purposes only and should not be understood to imply or suggest relative importance or implicitly indicate the number of the technical features indicated. Therefore, features defined as "first," "second," "third," and "fourth" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means at least two, for example, two, three, etc., unless otherwise clearly and specifically limited.

[0031] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0032] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower 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 an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0034] Example 1 like Figure 1 As shown, an embodiment of the present invention provides a structure for generating a quark-antiquark pair based on the symmetry control principle, comprising a dual-port feeding network 6 and a periodic zigzag structure 1, a first dielectric substrate 2, a second dielectric substrate 3, a metal ground 4 and a third dielectric substrate 5 arranged in sequence from top to bottom, wherein, as Figure 2 As shown, the periodic sawtooth structure 1 is made of a metallic conductive material and is disposed on a first dielectric substrate 2 .

[0035] Specifically, if Figure 1 As shown, the two-port feeding network 6 includes a first microstrip line 7 , a phase control section 8 , a first transmission line 9 , a second transmission line 10 , a first radiating dipole and a second radiating dipole 11 .

[0036] Specifically, the first microstrip line 7 is etched on the bottom surface of the third dielectric base layer 5 . The width of the first microstrip line 7 is 1.1 mm, and the characteristic impedance is 50Ω. The first microstrip line 7 is welded to the SMA connector to achieve 50Ω impedance matching to realize electromagnetic signal transmission.

[0037] Specifically, the cross section of the first radiating dipole and the second radiating dipole 11 is rectangular, the periphery of the rectangle is rounded, and the length of the rectangle is express.

[0038] The periodic serrated structure 1 includes a circular ring and multiple fan-shaped area blocks arranged on the circular ring. The multiple fan-shaped area blocks are distributed in a circular array and are made of pure copper. There are 8 fan-shaped area blocks with 8-fold rotational symmetry. The inner diameter of the fan-shaped area block is 4.0 mm, and the outer diameter of the fan-shaped area block is 18.0 mm. The circular ring connects the multiple fan-shaped area blocks into a whole, and uses a surface-etched periodic segmented structure to support the artificial localized surface plasmon LSP mode.

[0039] Specifically, the periodic serrated structure 1, the first microstrip line 7, the phase control segment 8, the first transmission line 9, the second transmission line 10, the first radiating dipole and the second radiating dipole 11 are all pure copper film structures prepared by the printed circuit board process. The thickness of the pure copper film structure is 0.034 mm, and the surface of the pure copper film structure is coated with a tin-plated layer for enhancing conductivity.

[0040] The phase control section 8 is etched on the bottom surface of the third dielectric substrate 5. The phase control section 8 includes a first branch and a second branch of different lengths. The input ends of the first branch and the second branch are both connected to the first microstrip line 7. The phase control section 8 is used to generate a phase difference between the electromagnetic signals of the first branch and the second branch. , through the phase difference Excite a specific two-dimensional irreducible representation irrep, where is the orbital index, is the phase difference between the first branch and the second branch, is the absolute skyrmion number of a quark-antiquark pair. The absolute skyrmion number is given by the formula Calculation, its value range is 1~4, strictly limited by the orbital index of the two-dimensional irreducible representation, where is the absolute skyrmion number of the quark-antiquark pair, is the absolute skyrmion number density of the skyrmion (anti-skyrmion), is the integral region, i.e. the region where the semi-particle and anti-semi-particle are located, which can be represented in a two-dimensional plane. represents the first axis coordinate, represents the second axis coordinate, is the irreducible representation exponent.

[0041] based on Group representation theory design, through doubly degenerate orbits The parity-locked chirality and orbital angular momentum (OAM) of ±1 to ±3 are used to control the generation and coupling of topological defects.

[0042] Specifically, the first branch includes a third transmission line in a straight line, one end of the third transmission line is connected to the first microstrip line 7, and the other end is connected to the first radiating dipole.

[0043] Specifically, the second branch includes a plurality of rectangular tooth-shaped fourth transmission lines connected end to end, and the free ends of the two outermost fourth transmission lines are connected to the first microstrip line 7 and the second radiating dipole 11 respectively. Figure 2 As shown, the third transmission line is shorter than the fourth transmission line. Since there are two rectangular teeth, the height of the rectangular teeth is .

[0044] The above-mentioned dual-port feeding network 6 can divide the input electromagnetic signal into two paths. The energy of the two paths is exactly the same, but the electromagnetic signal of the second branch is transmitted through a longer microstrip delay line, so it has a phase delay compared to the first branch. .

[0045] Specifically, the first dielectric base layer 2, the second dielectric base layer 3 and the third dielectric base layer 5 form a multi-layer dielectric substrate, which is used to support the periodic zigzag structure 1, the dual-port feeding network 6 and the metal ground 4 of the top layer and provide an electromagnetic field localization environment. They are all made of Rogers 4350B material with a thickness of 0.508 mm and a dielectric constant of .

[0046] Preferably, the first dielectric substrate 2, the second dielectric substrate 3, and the third dielectric substrate 5 are F4B circuit boards. F4B circuit boards are high-performance, high-frequency circuit boards made from polytetrafluoroethylene (PTFE) as a base material, with glass cloth, prepreg, and other materials incorporated through precise proportioning and rigorous manufacturing processes. F4B circuit boards have extremely low dielectric constants (DK) and dielectric loss (DF). At 10 GHz, DK is 3.0 ± 0.06, and DF is as low as 0.0017. At 20 GHz, DF remains as low as 0.0025, reducing signal transmission delay and energy loss, thereby improving signal integrity.

[0047] like Figure 1 and Figure 2 As shown, one end of the first transmission line 9 and the second transmission line 10 are respectively arranged on both sides of the first microstrip line 7 , and the other ends are respectively connected to the metal ground 4 .

[0048] A first radiating dipole and a second radiating dipole 11, each with identical structure, are arranged at a predetermined angle on a second dielectric substrate 3. Transmission line holes are provided in the metal ground 4 and the second dielectric substrate 3. The diameter of the second transmission line hole is larger than the line width of the first and second branches. The output ends of the first and second branches pass through the metal ground 4 and the second dielectric substrate 3, respectively, to connect to the first and second radiating dipoles 11. After being introduced through the first microstrip line 7, an electromagnetic signal generates a phase difference in the phase control section 8. This signal radiates energy toward the periodic sawtooth structure 1, achieving a specific symmetric incident field, thereby exciting the periodic sawtooth structure to produce semion-anti-semion pairs.

[0049] Specifically, the angle between the second radiating dipole 11 and the first radiating dipole is .

[0050] At the corresponding resonant frequencies of devices with different parameters, the periodic zigzag structure 1 achieves deep subwavelength localization through an 8-fold rotationally symmetric structure, supporting the multi-mode coexistence of electric / magnetic field harmonics and spin textures, and is used to generate skyrmion-antiskyrmion pairs with absolute skyrmion numbers of 1-4.

[0051] The dual-port feeding network 6 achieves independent control of topological charges 1-4 and OAM through precise control of phase difference excitation, which is used to directionally generate chirally locked skyrmion-anti-skyrmion pairs. Through the parity-chirality locking mechanism, the stable generation and directional coupling of skyrmion-anti-skyrmion pairs are ensured, which is used to break the topological charge upper limit of traditional skyrmions.

[0052] Specifically, the periodic zigzag structure 1 and the dual-port feeding network 6 are both made of highly conductive copper material to ensure electromagnetic wave transmittance in the microwave band and achieve topological defect control in the microwave frequency band.

[0053] When stimulated In irreducible representation, orbital angular momentum (OAM) is , generating a quark-antiquark pair carrying a topological charge of 1, whose electric field component presents a dumbbell-shaped vector distribution, and the magnetic field component forms a target topological structure. The irreducible representation generates high-order skyrmion-antiskyrmion pairs through scalar vortex fields with OAM=±2 and ±3, respectively, and their absolute skyrmion number is strictly limited by the orbital index. The symmetry group control module is controlled by the parity symbol ( ) locks the chirality and OAM direction, e.g. The first dimension of the irreducible representation (parity -1) corresponds to the anti-semi-particle, and the second dimension (parity +1) corresponds to the semi-particle. The two form a synergistic effect of phase singularity and polarization vortex in the radial direction.

[0054] The present invention provides a structure for generating a skyrmion-antiskyrmion pairs based on the principle of symmetry control. This structure is a basic resonant unit. The dual-port feeding network 6 of the resonant unit achieves independent control of the topological charge (1-4) and OAM through precise phase difference control excitation, which is used to directional generate chirally locked skyrmion-antiskyrmion pairs. Specifically, after the electromagnetic signal is introduced through the first microstrip line, a phase difference is generated in the phase control section. The first radiating dipole and the second radiating dipole radiate energy to the periodic sawtooth structure to achieve an incident field with a specific symmetry, thereby exciting the periodic sawtooth structure to generate skyrmion-antiskyrmion pairs. Through the parity-chirality locking mechanism, the stable generation and directional coupling of the skyrmion-antiskyrmion pairs are ensured, which is used to break the topological charge upper limit of traditional skyrmions. The schematic diagram of the expected effect is shown in FIG. Figure 3 In the experimental verification, the spacing between the harmonic semion-antisemion pair is λ / 5.3, and the size of a single defect is λ / 10.6, where λ is the operating wavelength and the magnetic field component is Phase flip verification target topology. Figure 4 It is shown in the figure that the structure provided by the present invention has high radiation efficiency at the frequency points corresponding to various irreducible representations. Figure 5 and Figure 6 The effects of the structure provided by the present invention on generating electric and magnetic field quark-antiquark pairs are respectively demonstrated. Figure 7 The effect of the structure provided by the present invention on producing isolated half-particles or anti-half-particles is demonstrated. Figures 8 to 11 are the effects of the half-piece-anti-half-piece pairs corresponding to their respective irreducible representations, Figure 12 The experimental results show that the device measures the electric field at a height of 10 mm on the cutting plane through a near-field scanning system. Component, showing that the distance between the half-anti-half pair is , where λ is the operating wavelength, and the single defect size is compressed to , and the magnetic field component The phase flip of α and β verifies the formation of the target topological structure. In addition, the stable spin-antispin pairs are generated through the spin-orbital angular momentum coupling mechanism, and their energy localization scale reaches , defined by the L linear polarization singularity boundary. This process achieves the coexistence of electric field harmonic semions, magnetic field target semions, and spin-stable semions in a single structure, breaking the topological charge limit of traditional skyrmions and providing a new path for deep subwavelength optical field manipulation and topological photonics applications.

[0055] Compared with the existing technology, this invention realizes for the first time in an optical wave system a special three-dimensional optical topological defect called a quark-antiquark pair, which supports the coexistence of electric field harmonic quarks, magnetic field target quarks, and spin-stable quarks. It can be used as a core component of a vector sensing system. The dual-port feeding network can divide the input electromagnetic signal into two paths. The energy of the two paths is exactly the same, but the electromagnetic signal of the second branch is transmitted through a longer microstrip delay line, so it has a phase delay compared to the first branch. , by the principle of symmetry, the angle between the output ends of the first branch and the second branch can be accurately solved and the phase difference caused by the output of the first branch and the second branch The value of can be used to realize a specific symmetric incident field by utilizing the two-port feeding network, especially the first branch and the second branch between the dielectric plates, thereby stimulating the periodic zigzag structure to produce low-order or even high-order localized topologically stable skyrmion-antiskyrmion pairs carrying specific orbital angular momentum. The absolute skyrmion number can be achieved under different structural parameters. The precise control of the skyrmion breaks through the topological charge limitation of the traditional skyrmion. And through the chirality-OAM locking mechanism, the irreducible parity symbol ( ) Locking the chirality of the semi-particle / anti-semi-particle and the direction of OAM ( to ), to achieve directional coupling. Experimental verification of the local scale of the light field , which is more than three times higher than the traditional LSP structure, where λ is the operating wavelength, and supports the coexistence of electric field harmonic semi-ons, magnetic field target semi-ons and spin-steady-state semi-ons, providing a theoretical basis for multifunctional integrated photonic devices, with significant cost advantages and large-scale manufacturing potential, providing important support for the future research and development of multifunctional integrated photonic devices, and can also be extended to terahertz and optical frequency bands, opening up new application scenarios for cutting-edge fields such as optical sensing, topological photonics chips and quantum information processing. It is highly practical and worthy of promotion.

[0056] It will be understood that the present invention is described through some embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention.

[0057] Furthermore, these features and embodiments may be modified to suit specific circumstances and materials under the teachings of the present invention without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present invention are intended to be protected by the present invention.

Claims

1. A structure for generating a semi-anti-semi-particle pair based on the principle of symmetry control, characterized in that: The invention comprises a dual-port feeding network (6) and a periodic sawtooth structure (1), a first dielectric base layer (2), a second dielectric base layer (3), a metal ground (4) and a third dielectric base layer (5) arranged in sequence from top to bottom, wherein the periodic sawtooth structure (1) is a metal conductive material and is arranged on the first dielectric base layer (2), and the dual-port feeding network (6) comprises: A first radiating dipole and a second radiating dipole (11) having the same structure, both of which are arranged on the second dielectric base layer (3) at a predetermined angle; A first microstrip line (7) is provided on the bottom surface of the third dielectric substrate (5) and is used for transmitting electromagnetic signals; A phase control section (8) is provided on the bottom surface of the third dielectric substrate (5), the phase control section (8) comprising a first branch and a second branch of different lengths, the input ends of the first branch and the second branch are both connected to the first microstrip line (7), and the output ends of the first branch and the second branch pass through the metal ground (4) and the second dielectric substrate (3) in sequence and are connected to the first radiating dipole and the second radiating dipole (11) respectively; A first transmission line (9) and a second transmission line (10), one end of each of which is arranged on both sides of the first microstrip line (7), and the other end of each of which is connected to the metal ground (4); After the electromagnetic signal is introduced through the first microstrip line (7), a phase difference is generated in the phase control section (8), and energy is radiated to the periodic sawtooth structure (1) through the first radiating dipole and the second radiating dipole (11) to realize an incident field with a specific symmetry, thereby exciting the periodic sawtooth structure (1) to generate a semion-anti-semion pair.

2. The device for generating a semi-piece-anti-semi-piece pair based on the symmetry control principle according to claim 1, characterized in that: The phase difference between the first branch and the second branch complies with the following principles: ， in, is the orbital index, is the phase difference between the first branch and the second branch, is the absolute skyrmion number of a schizont-antischizont pair.

3. The device for generating a half-piece-anti-half-piece pair based on the symmetry control principle according to claim 2, characterized in that: The first branch includes a third transmission line in a straight line, one end of the third transmission line is connected to the first microstrip line (7), and the other end is connected to the first radiating dipole; the second branch includes a plurality of fourth transmission lines in a rectangular tooth shape connected end to end, and the free ends of the two fourth transmission lines at the outermost edges are respectively connected to the first microstrip line (7) and the second radiating dipole (11).

4. The device for generating a half-piece-anti-half-piece pair based on the symmetry control principle according to any one of claim 1, characterized in that: The periodic sawtooth structure (1) comprises a circular ring and a plurality of sector-shaped area blocks arranged on the circular ring, wherein the plurality of sector-shaped area blocks are distributed in a circular array.

5. The device for generating a half-piece-anti-half-piece pair based on the symmetry control principle according to claim 4, characterized in that: There are 8 fan-shaped area blocks, and the inner diameter of the fan-shaped area blocks is 4.0 mm and the outer diameter is 18.0 mm.

6. The device for generating a half-piece-anti-half-piece pair based on the symmetry control principle according to claim 1, characterized in that: The periodic sawtooth structure (1), the first microstrip line (7), the phase control section (8), the first transmission line (9), the second transmission line (10), the first radiating dipole, and the second radiating dipole (11) are all pure copper film structures prepared by a printed circuit board process, and the pure copper film structure is coated with a tin-plated layer for enhancing conductivity.

7. The device for generating a pawn-anti-pawn pair based on the symmetry control principle according to claim 1, characterized in that: The dielectric constants of the first dielectric base layer (2), the second dielectric base layer (3) and the third dielectric base layer (5) are .

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