Millimeter wave pattern reconfigurable antenna and reconfigurable method

Abstract

The invention provides a millimeter wave directional diagram reconfigurable antenna and a reconfigurable method, and belongs to the technical field of wireless communication. A plurality of radiation structures are integrated on the same transmission line structure, and impedance regulation is performed by loading a control element on the antenna structure, so that one radiation structure is in a matched state, and the other radiation structures are in a mismatched state; time-domain reconfigurable collaborative excitation of a single feed structure on a plurality of radiation modes is realized; energy enters from the feed port and is radiated outwards through the radiation structure in the matched state. According to the invention, time-domain reconfigurable collaborative excitation of a single feed structure on a plurality of radiation modes can be realized; a plurality of modes can be freely and flexibly switched; a simple and compact direct-current circuit is provided; the stable radiation characteristic can be realized; the structure is compact, the integration level is high, the occupied space is small, and machining is easy; the antenna has relatively high gain and efficiency and relatively good working bandwidth; and the space coverage rate is relatively high.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless communications, and in particular to a millimeter wave directional pattern reconfigurable antenna and a reconfiguration method. Background Art

[0002] With the rapid development of wireless communication, people's demand for communication systems continues to increase. The number of RF system components and modern communication electronic equipment has increased significantly. The traditional wireless communication system frequency band (below 6GHz) is short of resources, and the problem of insufficient space for communication system is increasingly valued by researchers at home and abroad. The millimeter wave band has a larger available signal bandwidth, which can effectively solve the problem of lack of spectrum resources and play a key role in the new generation of wireless communication applications. In the future, it will be widely used in 5G communication, industrial Internet of Things, intelligent transportation network, radar imaging and other fields. Compared with the low-frequency microwave band, the millimeter wave has a shorter wavelength and greater path propagation loss. The millimeter wave components are more susceptible to the impact of the integration platform and the use environment, including the antenna cover, other structures of the terminal equipment, users, equipment placement and other factors, which will have a significant impact on the radiation and impedance characteristics of the millimeter wave passive components, and even cause functional failure. In order to reduce the impact of equipment and environment on antenna performance, multiple millimeter wave antenna arrays are usually placed at different locations of the equipment to improve the coverage efficiency of the antenna. However, multiple sub-arrays will take up a lot of space and require multiple feeding ports, which greatly increases the difficulty of integrating millimeter wave antennas in the device. Summary of the invention

[0003] The object of the present invention is to provide a millimeter wave pattern reconfigurable antenna and a reconfigurable method to solve at least one technical problem existing in the above-mentioned background technology.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The present invention provides a millimeter wave directional pattern reconfigurable antenna, comprising:

[0006] Multiple radiating structures are integrated on the same transmission line structure. By loading control elements on the antenna structure to control impedance, one radiating structure is in a matching state, and the other radiating structures are in a mismatched state, so that a single feeding structure can reconfigure the coordinated excitation of multiple radiation modes in the time domain. Energy enters from the feeding port and radiates outward through the radiating structure in a matching state.

[0007] The multiple radiation structures include: an end-fire radiation structure, and a side-fire radiation structure symmetrically arranged on both sides of the end-fire radiation structure and connected to the end-fire radiation structure.

[0008] Preferably, the end-fire radiation structure includes a transmission line structure with an open terminal, an electric dipole connected to the transmission line structure, an electric dipole metal patch connected to the electric dipole via an end-fire diode, and the electric dipole metal patch is located above the electric dipole; the end-fire diode is connected to a vertical short-circuit metal column, the vertical short-circuit metal column is connected to two metal strips, and the end-fire DC circuit is led out in the long side direction of the metal strips.

[0009] Preferably, the edge-emitting radiation structure includes four upper metal patches of the edge-emitting slot patch antenna, which are located on both sides of the edge-emitting slot, with two on each side, and the upper metal patches on both sides of the edge-emitting slot are connected through edge-emitting diodes; the upper metal patch is connected to the lower metal patch through the edge-emitting metal column, and the lower metal patch leads out the edge-emitting DC circuit.

[0010] Preferably, the transmission line structure is composed of a substrate integrated waveguide metal column integrated in a second dielectric substrate and metal layers located at both ends of the substrate integrated waveguide metal column; wherein, the two sides of the second dielectric substrate are a first dielectric substrate and a third dielectric substrate, the first dielectric substrate and the second dielectric substrate are bonded by a first adhesive sheet, and the second dielectric substrate and the third dielectric substrate are bonded by a second adhesive sheet.

[0011] The preferred terminal open circuit serves as a magnetic dipole, and one half arm of the electric dipole is integrated in the first dielectric substrate and the first adhesive sheet, connected to the metal layer; the other half arm of the electric dipole is integrated in the third dielectric substrate and the second adhesive sheet, connected to the metal layer, and the two half arms are symmetrical about the second dielectric substrate.

[0012] Preferably, the two electric dipole metal patches are respectively located in the first dielectric substrate and the third dielectric substrate, and the two electric dipole metal patches are vertically symmetrical with respect to the second dielectric substrate.

[0013] Preferably, the two metal strips are located in the second dielectric substrate, and the vertical short-circuit metal column is integrated in the first dielectric substrate, the first adhesive sheet, the second dielectric substrate, the second adhesive sheet and the third dielectric substrate to connect the two metal strips.

[0014] The beneficial effects of the present invention are as follows: time-domain reconfigurable cooperative excitation of multiple radiation modes by a single feeding structure can be realized; free and flexible switching of multiple modes can be realized; a simple and compact DC circuit can be provided; stable radiation characteristics can be realized; the structure is compact, the integration level is high, the space occupied is small, and the processing is easy; higher gain and efficiency and better working bandwidth are provided; and higher spatial coverage is provided.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, which will become obvious from the following description, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 A schematic diagram of a millimeter wave pattern reconfiguration method according to an embodiment of the present invention.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the directional pattern reconfigurable antenna according to an embodiment of the present invention.

[0019] Figure 3 This is a side structural diagram of the millimeter wave reconfigurable antenna according to an embodiment of the present invention.

[0020] Figure 4 This is a structural diagram of the side-radiating structure described in an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the position of the edge-emitting diode according to an embodiment of the present invention.

[0022] Figure 6 This is a diagram of an edge-firing DC circuit described in an embodiment of the present invention.

[0023] Figure 7 This is a structural diagram of the end-fire radiation structure described in an embodiment of the present invention.

[0024] Figure 8 This is a structural diagram of a transmission line according to an embodiment of the present invention.

[0025] Fig. 9 It is a schematic diagram of the end-fire electric dipole structure described in an embodiment of the present invention.

[0026] Fig.10 This is a schematic diagram of the position of the end-emitter diode described in an embodiment of the present invention.

[0027] Fig.11 This is an end-fire DC circuit diagram described in an embodiment of the present invention.

[0028] Fig.12 The diagram shows the three-mode reflection coefficient results and efficiency result diagram of the millimeter-wave pattern reconfigurable antenna described in the embodiment of the present invention.

[0029] Fig.13 This is a graph showing three mode gain results of the millimeter wave pattern reconfigurable antenna according to an embodiment of the present invention.

[0030] Fig.14This is the E-plane radiation pattern of three modes at different frequency points of the millimeter-wave radiation pattern reconfigurable antenna described in the embodiment of the present invention.

[0031] Fig.15 This is the H-plane directional pattern of three modes at different frequency points of the millimeter-wave directional pattern reconfigurable antenna described in the embodiment of the present invention.

[0032] Among them, 1-first dielectric substrate; 2-first adhesive sheet; 3-second dielectric substrate; 4-second adhesive sheet; 5-third dielectric substrate; 6-metal layer; 7-feeding port; 8-first edge-emitting radiation structure; 9-second edge-emitting radiation structure; 10-end-emitting radiation structure; 11-transmission line structure; 12-edge-emitting diode; 13-upper metal patch of edge-emitting slot patch antenna; 14-lower metal patch of edge-emitting slot patch antenna; 15-metal column of edge-emitting slot patch antenna; 16-edge-emitting DC circuit; 17-electric dipole metal patch; 18-electric dipole; 19-vertical short-circuit metal column; 20-metal strip; 21-end-emitting DC circuit; 22-end-emitting diode; 23-edge-emitting slot; 24-substrate integrated waveguide metal column. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below by the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0034] It should be understood by those skilled in the art that unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which this invention belongs.

[0035] It should also be understood that terms, such as those defined in commonly used dictionaries, should be understood to have a meaning consistent with that in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless as defined herein.

[0036] Those skilled in the art will appreciate that, unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements and / or groups thereof.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0038] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot 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 invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] In the description of this specification, the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present technology 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 technology.

[0040] Unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in this technology can be understood according to specific circumstances.

[0041] To facilitate understanding of the present invention, the present invention is further explained below with reference to specific embodiments in conjunction with the accompanying drawings, and the specific embodiments do not constitute a limitation on the embodiments of the present invention.

[0042] Those skilled in the art should understand that the drawings are merely schematic diagrams of embodiments, and the components in the drawings are not necessarily necessary for implementing the present invention.

[0043] Example 1

[0044] In this embodiment 1, a millimeter wave pattern reconfiguration method is provided, combining Figures 1 to 11 As shown, a millimeter-wave pattern reconfigurable antenna is designed based on this method to solve the defects existing in the prior art.

[0045] The millimeter-wave pattern reconfigurable method described in this embodiment 1 is as follows: multiple radiation structures (antenna 1, antenna 2 and antenna 3) are integrated on the same transmission line, and impedance is controlled by loading control elements such as diodes on the antenna structures so that one radiation structure is in a matching state and the other radiation structures are in a mismatched state, thereby realizing time-domain reconfigurable collaborative excitation of multiple radiation modes by a single feeding structure.

[0046] In this embodiment 1, based on the above-mentioned method principle, a millimeter-wave pattern reconfigurable antenna is designed: the millimeter-wave pattern reconfigurable antenna mainly includes a first side-firing radiation structure 8, a second side-firing radiation structure 9 and an end-firing radiation structure 10, and the radiation structure is integrated into a section of a transmission line structure 11. The first side-firing radiation structure and the second side-firing radiation structure can be any type of side-firing antenna such as a slot antenna, a patch antenna, a dipole antenna, a magneto-electric dipole antenna, etc., and can be the same antenna type or different. The same slot patch antenna is used in the present invention. The end-firing radiation structure can adopt any type of end-firing antenna. The end-firing magneto-electric dipole antenna is used in the present invention. The transmission line structure can adopt transmission structures such as microstrip line, waveguide, coaxial line, etc. The substrate integrated waveguide is used in the present invention. Energy enters from the feeding port 7 and radiates outward through the radiation structure in a matching state.

[0047] In this embodiment, a slot patch antenna is used as a side-emitting structure. The first side-emitting radiation structure is the same as the second side-emitting radiation structure. The first side-emitting radiation structure 8 and the second side-emitting radiation structure 9 are symmetrical about the second dielectric substrate 3. The side-emitting radiation structure is composed of an upper metal patch 13 of a side-emitting slot patch antenna, a lower metal patch 14 of a side-emitting slot patch antenna, a side-emitting metal column 15 of a side-emitting slot patch antenna, a side-emitting slot 23, a side-emitting diode 12 and a side-emitting DC circuit 16. Four upper metal patches 13 are located on the first dielectric substrate 1, and four lower metal patches 14 are located under the first dielectric substrate 1. The two are connected by four groups of metal columns 15, and the four upper metal patches 13 are symmetrical about the side-emitting slots. The side-emitting slots 23 are located in the metal layer on the second dielectric substrate 3. The first dielectric substrate 1 and the second dielectric substrate 3 are bonded by a first adhesive sheet 2. The side-emitting diode 12 is located on the upper metal patch, connecting the upper metal patches on both sides of the long side of the slot. The side-emitting DC circuit 16 is directly led out from the lower metal patch 14 .

[0048] In this embodiment 1, an end-fire magnetic electric dipole antenna is used as an end-fire radiation structure. It includes a transmission line structure 11 with an open terminal, an electric dipole metal patch 17, an electric dipole 18, a vertical short-circuit metal column 19, a metal strip 20, an end-fire DC circuit 21 and an end-fire partial diode 22. The transmission line structure 11 is composed of a substrate integrated waveguide metal column 24 and upper and lower metal layers 6 integrated in the second dielectric substrate 3, and the end is open as a magnetic dipole. The half arm of the electric dipole 18 is integrated in the first dielectric substrate 1 and the first adhesive sheet 2, one end is connected to the metal layer 6, and the other half arm is integrated in the third dielectric substrate 5 and the second adhesive sheet 4, one end is connected to the metal layer 6, and is symmetrical about the second dielectric substrate 3. The electric dipole metal patch 17 is located above the electric dipole 18 (on the first dielectric substrate 1), and is symmetrical about the second dielectric substrate 3. The electric dipole metal patch 17 is located above the electric dipole 18 (on the first dielectric substrate 1), and is symmetrical about the second dielectric substrate 3. Two metal strips 20 are located above and below the second dielectric substrate 3, and are separated from the metal layer 6 by a distance and are not connected. The vertical short-circuit metal column 19 is integrated into the first dielectric substrate 1, the first adhesive sheet 2, the second dielectric substrate 3, the second adhesive sheet 4 and the third dielectric substrate 5, and connects the two metal strips 20. One end of the end-fire partial diode 22 is located on the vertical short-circuit metal column 19, and the other end is located on the electric dipole metal patch 17. The end-fire DC circuit 21 is led out from the metal strip 20 along the long side of the metal strip.

[0049] Example 2

[0050] In this embodiment 2, a millimeter wave directional pattern reconfigurable antenna is provided. Figure 2 is a schematic diagram of the three-dimensional structure of the millimeter wave directional pattern reconfigurable antenna in an embodiment, Figure 3 Side view of the millimeter-wave reconfigurable antenna. It includes a first side-firing radiating structure 8, a second side-firing radiating structure 9 and an end-firing radiating structure 10. The three radiating structures are integrated into a transmission line structure 11. The first radiating structure and the second radiating structure both use slot patch antennas. The end-firing radiating structure uses an end-firing magnetoelectric dipole antenna. The transmission line structure uses a substrate integrated waveguide metal column. Energy enters from the feed port 7, and the diodes on the radiating structure are adjusted to make one of the radiating structures matched and the other two mismatched. The energy is radiated outward through the radiating structure in a matched state.

[0051] Figure 4It is a side-emitting radiation structure, and the first side-emitting radiation structure is the same as the second side-emitting radiation structure. The first side-emitting radiation structure 8 and the second side-emitting radiation structure 9 are symmetrical about the second dielectric substrate 3. The side-emitting radiation structure is composed of an upper metal patch 13 of a side-emitting slot patch antenna, a lower metal patch 14 of a side-emitting slot patch antenna, a metal column 15 of a side-emitting slot patch antenna, a side-emitting slot 23, a side-emitting diode 12 and a side-emitting DC circuit 16. The four upper metal patches 13 are located on the first dielectric substrate 1, and the four lower metal patches 14 are located under the first dielectric substrate 1. The two are connected by four groups of metal columns 15, each group of metal columns has three, and the four upper metal patches 13 are symmetrical about the side-emitting slot 23, and the upper and lower metal patches are located in corresponding positions. The side-emitting slot 23 is located in the metal layer on the second dielectric substrate 3, and the length of the slot is λ / 2. The first dielectric substrate 1 and the second dielectric substrate 3 are bonded by a first adhesive sheet 2. Two edge-emitting diodes 12 are located on the upper metal paste 13, as shown in FIG. Figure 5 As shown, the positive electrode is located on the metal patch 13 on one side of the long side of the edge-emitting gap 23, and the negative electrode is located on the metal patch 13 on the other side of the long side of the edge-emitting gap 23, connecting the four upper metal patches 13 on both sides of the long side of the gap 23. The edge-emitting DC circuit 16 is directly led out from the lower metal patch 14, and the positive and negative electrodes are respectively gathered into one path, which is located on both sides of the long side of the edge-emitting gap 23, as shown in FIG. Figure 6 shown.

[0052] Figure 7 It is an end-fire radiation structure. It includes an open-ended transmission line structure 11, an electric dipole metal patch 17, an electric dipole 18, a vertical short-circuit metal column 19, a metal strip 20, an end-fire DC circuit 21 and an end-fire partial diode 22. Figure 8 The transmission line structure 11 is composed of a metal column 24 integrated in the second dielectric substrate 3 and upper and lower metal layers 6, and the terminal is open circuited as a magnetic dipole. Fig. 9 The electric dipole 18 half arm is integrated in the first dielectric substrate 1 and the first adhesive sheet 2, one end is connected to the metal layer 6, and the other end is connected to the electric dipole metal patch 17 with a radius of 0.8 mm. The other half arm is integrated in the third dielectric substrate 5 and the second adhesive sheet 4, similarly, one end is connected to the metal layer 6, and the other end is connected to the electric dipole metal patch 17 with a radius of 0.8 mm. The two arms of the electric dipole are symmetrical about the second dielectric substrate 3.

[0053] In this embodiment, two pairs of electric dipoles are used, and the distance between the two pairs of electric dipoles is 1mm. The metal patches at both ends of the electric dipoles are short-circuited by a metal strip with a width of 0.1mm. The two metal strips 20 are located above and below the second dielectric substrate 3, and there is a distance (0.5mm) between the metal layer 6 and they are not connected. The vertical short-circuit metal column 19 is integrated in the first dielectric substrate 1, the first adhesive sheet 2, the second dielectric substrate 3, the second adhesive sheet 4 and the third dielectric substrate 5, connecting the two metal strips 20. Fig.10 The positive end of the end-fire diode 22 is located on the vertical short-circuit metal column 19, and the negative end is located on the electric dipole metal patch 17, and is connected to the metal layer 6 (antenna ground) through the dipole. Fig.11 The end-fire DC circuit 21 is led out from the metal strip 20 along the long side direction of the metal strip.

[0054] When one of the DC lines on the first edge-emitting radiation structure is applied with a DC voltage and the other is connected to a DC ground, the diode on the first edge-emitting radiation structure is turned on, the first edge-emitting radiation structure is in a matching state, and the other two radiation structures are in a mismatched state. The radiation direction is +z edge-emitting, which is mode 1.

[0055] When one of the DC lines on the second edge-emitting radiation structure is applied with a DC voltage and the other is connected to a DC ground, the diode on the second edge-emitting radiation structure is turned on, the second edge-emitting radiation structure is in a matching state, and the other two radiation structures are in a mismatched state. The radiation direction is -z edge-emitting, which is mode 2.

[0056] When a DC voltage is applied to one of the DC lines on the end-fire radiation structure and the metal layer is connected to the DC ground, the diode on the end-fire radiation structure is turned on, the end-fire radiation structure is in a matching state, and the other two radiation structures are in a mismatched state. The radiation direction is end-fire, which is mode 3.

[0057] Fig.12 The results of the reflection coefficients and efficiency of the three modes of the millimeter wave reconfigurable antenna are shown in Figure 2. The results show that the antennas of mode 1 and mode 2 have the same reflection coefficients as the antennas of mode 2. 11 |<-10dB The working bandwidth is 21% (26.3-32.3GHz). Within the working bandwidth, the efficiency of the antenna can reach more than 75%. Due to the symmetry of the antenna structure, the results of mode 1 and mode 2 are basically the same. Mode 3 Antenna |S 11 |<-10dB working bandwidth is 26.1% (26-33.8GHz) Within the working bandwidth, the efficiency of the antenna is 85%-89%. The common bandwidth of the three modes can reach 21% (26.3-32.3GHz), and the efficiency can reach more than 75%. Fig.13 The three-mode gain results of the millimeter-wave radiation pattern reconfigurable antenna show that the side-fire (mode 1 and mode 2) gain is 4-6.9dBi in the common working band, and the end-fire (mode 3) gain is 4.2-7.1dBi in the common working band. Fig.14 It is the E-plane radiation pattern of the millimeter-wave reconfigurable antenna at three different frequency points. Fig.15It is the H-plane radiation pattern of the three modes of the millimeter-wave reconfigurable antenna at different frequencies. On the E-plane, the 3dB beamwidth of the three modes can cover a total of 270° (from 315° to 225°) at 27GHz and 29GHz, and 230° (from 315°-30°, from 50° to 130°, and from 150° to 225°) at 31GHz. The common radiation of the three modes can cover a larger space.

[0058] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative work on the basis of the technical solution disclosed in the present invention should be included in the scope of protection of the present invention.

Claims

1. A millimeter wave pattern reconfiguration method, characterized in that: include: Integrate multiple radiating structures on the same transmission line structure, load control elements on the antenna structure to adjust impedance, so that one radiating structure is in a matching state and the other radiating structures are in a mismatched state, thus achieving time-domain reconfigurable cooperative excitation of multiple radiation modes by a single feeding structure. Energy enters from the feed port and radiates outward through the radiating structure in a matched state.

2. A millimeter wave pattern reconfigurable antenna, characterized in that: include: An end-fire radiation structure, and two identical side-fire radiation structures symmetrically arranged on both sides of the end-fire radiation structure. The end-fire radiation structure and two side-fire radiation structures are integrated on a section of transmission line.

3. The millimeter wave pattern reconfigurable antenna according to claim 2, characterized in that: The end-fire radiation structure includes a transmission line structure with an open terminal, an electric dipole connected to the transmission line structure, and an electric dipole metal patch connected to the electric dipole, wherein the electric dipole metal patch is located above the electric dipole; the end-fire diode is connected to the electric dipole metal patch and a vertical short-circuit metal column, the vertical short-circuit metal column is connected to two metal strips, and the end-fire DC circuit is led out in the long side direction of the metal strips.

4. The millimeter wave pattern reconfigurable antenna according to claim 3, characterized in that: The edge-emitting radiation structure includes four upper metal patches of the edge-emitting slot patch antenna, which are located on both sides of the edge-emitting slot, with two on each side. The upper metal patches on both sides of the edge-emitting slot are connected through edge-emitting diodes; the upper metal patch is connected to the lower metal patch through an edge-emitting metal column, and the lower metal patch leads to an edge-emitting DC circuit.

5. The millimeter wave pattern reconfigurable antenna according to claim 4, characterized in that: The transmission line structure is composed of a substrate integrated waveguide metal column integrated in a second dielectric substrate and metal layers located at both ends of the substrate integrated waveguide metal column, and the transmission line structure is symmetrical up and down; wherein, the two sides of the second dielectric substrate are the first dielectric substrate and the third dielectric substrate, the first dielectric substrate and the second dielectric substrate are bonded by a first adhesive sheet, and the second dielectric substrate and the third dielectric substrate are bonded by a second adhesive sheet.

6. The millimeter wave pattern reconfigurable antenna according to claim 5, characterized in that: The terminal is open circuited as a magnetic dipole, one half arm of the electric dipole is integrated in the first dielectric substrate and the first adhesive sheet, connected to the metal layer; the other half arm of the electric dipole is integrated in the third dielectric substrate and the second adhesive sheet, connected to the metal layer, and the two half arms are symmetrical about the second dielectric substrate.

7. The millimeter wave pattern reconfigurable antenna according to claim 6, characterized in that: The two electric dipole metal patches are respectively located in the first dielectric substrate and the third dielectric substrate, and the two electric dipole metal patches are vertically symmetrical with respect to the second dielectric substrate.

8. The millimeter wave pattern reconfigurable antenna according to claim 7, characterized in that: The two metal strips are located in the second dielectric substrate, and the vertical short-circuit metal column is integrated in the first dielectric substrate, the first adhesive sheet, the second dielectric substrate, the second adhesive sheet and the third dielectric substrate to connect the two metal strips.

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