Electromagnetic wave radiation system and communication device

Abstract

The electromagnetic wave radiation system and the communication device provided by the embodiments of the present disclosure comprise: a first metal substrate; a second metal substrate, which is arranged opposite to the first metal substrate; an electromagnetic wave transmission assembly, which is arranged between the first metal substrate and the second metal substrate; the electromagnetic wave transmission assembly comprises: a first glass substrate and a second glass substrate arranged opposite to each other, a liquid crystal layer arranged between the first glass substrate and the second glass substrate, and a plurality of electromagnetic wave transmission structures arranged on a side of the first glass substrate facing the liquid crystal layer; wherein the first glass substrate is close to the first metal substrate; an electromagnetic shielding structure, which is arranged between the electromagnetic wave transmission assembly and the first metal substrate, comprises a plurality of shielding units surrounded by a plurality of first metal columns, the shielding units are arranged one by one corresponding to the electromagnetic wave transmission structures, and a normal projection of the electromagnetic wave transmission structure on the first metal substrate is located within a normal projection range of the shielding unit on the first metal substrate.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of microwave devices, and in particular to an electromagnetic wave radiation system and a communication device. BACKGROUND

[0002] Glass-based devices and circuits play an important role in modern wireless communication systems, and liquid crystal phase shifters and glass-based antennas have good working characteristics and novel design schemes, and have become hot devices for scientific research and engineering application in recent years.

[0003] However, electromagnetic crosstalk in glass-based devices and circuits can seriously affect the working performance of the entire communication system. SUMMARY

[0004] The electromagnetic wave radiation system and the communication device provided by the embodiments of the present disclosure are as follows:

[0005] The electromagnetic wave radiation system provided by the embodiments of the present disclosure comprises:

[0006] A first metal substrate;

[0007] A second metal substrate is arranged opposite to the first metal substrate;

[0008] An electromagnetic wave transmission assembly is arranged between the first metal substrate and the second metal substrate; the electromagnetic wave transmission assembly comprises: a first glass substrate and a second glass substrate arranged opposite to each other, a liquid crystal layer arranged between the first glass substrate and the second glass substrate, and a plurality of electromagnetic wave transmission structures arranged on a side of the first glass substrate facing the liquid crystal layer; wherein the first glass substrate is close to the first metal substrate;

[0009] An electromagnetic shielding structure is arranged between the electromagnetic wave transmission assembly and the first metal substrate, and the electromagnetic shielding structure comprises a plurality of shielding units surrounded by a plurality of first metal columns, the shielding units are arranged one by one corresponding to the electromagnetic wave transmission structures, and the orthographic projection of the electromagnetic wave transmission structure on the first metal substrate is located within the orthographic projection range of the shielding unit on the first metal substrate.

[0010] In a possible implementation manner, in the electromagnetic wave radiation system provided by the embodiments of the present disclosure, the electromagnetic shielding structure further comprises:

[0011] A first dielectric substrate is arranged between the first metal substrate and the electromagnetic wave transmission assembly, and the first dielectric substrate comprises a plurality of first cavities arranged one by one corresponding to the electromagnetic wave transmission structures, and the plurality of first metal columns are embedded in the first dielectric substrate outside the periphery of the plurality of first cavities at intervals;

[0012] a second dielectric substrate disposed between the first dielectric substrate and the electromagnetic wave transmission component;

[0013] a plurality of second metal columns spacedly embedded in the second dielectric substrate and in one-to-one correspondence with the first metal columns.

[0014] In a possible implementation, in the electromagnetic wave radiation system provided by the embodiments of the present disclosure, further comprising:

[0015] a plurality of waveguide structures disposed on a side of the first metal substrate facing the second metal substrate, the waveguide structures being in one-to-one correspondence with the first cavities, a normal projection of the first cavities on the first metal substrate coinciding with a normal projection of the waveguide structures on the first metal substrate, and the first dielectric substrate being embedded in a periphery of the plurality of waveguide structures through the first cavities.

[0016] a first ridge-shaped hole penetrating the waveguide structures and the first metal substrate below the waveguide structures.

[0017] a plurality of first metal layers disposed on a side of the second dielectric substrate facing the second metal substrate and in one-to-one correspondence with the waveguide structures, the first metal layers having second ridge-shaped holes in one-to-one correspondence with the first ridge-shaped holes.

[0018] In a possible implementation, in the electromagnetic wave radiation system provided by the embodiments of the present disclosure, further comprising:

[0019] a plurality of waveguide structures disposed on a side of the first metal substrate facing the second metal substrate, the waveguide structures being in one-to-one correspondence with the electromagnetic wave transmission structures, and the first metal columns being disposed in a periphery of the plurality of waveguide structures.

[0020] In a possible implementation, in the electromagnetic wave radiation system provided by the embodiments of the present disclosure, further comprising:

[0021] a first ridge-shaped hole penetrating the waveguide structures and the first metal substrate below the waveguide structures.

[0022] a second dielectric substrate disposed between the waveguide structures and the electromagnetic wave transmission component.

[0023] a plurality of first metal layers disposed on a side of the second dielectric substrate facing the second metal substrate and in one-to-one correspondence with the waveguide structures, the first metal layers having second ridge-shaped holes in correspondence with the first ridge-shaped holes.

[0024] In a possible implementation, in the electromagnetic wave radiation system provided by the embodiment of the present disclosure, the size of the first metal layer is the same as the size of the waveguide structure.

[0025] In a possible implementation, in the electromagnetic wave radiation system provided by the embodiment of the present disclosure, the first ridge-shaped hole and the second ridge-shaped hole are arranged on the first metal substrate.

[0026] In a possible implementation, in the electromagnetic wave radiation system provided by the embodiment of the present disclosure, the electromagnetic wave transmission structure is a patch antenna, and the second metal substrate comprises a plurality of hollow structures arranged one-to-one corresponding to the patch antenna.

[0027] In a possible implementation, in the electromagnetic wave radiation system provided by the embodiment of the present disclosure, the electromagnetic shielding structure further comprises:

[0028] A third dielectric substrate is arranged between the first metal substrate and the electromagnetic wave transmission assembly, and the third dielectric substrate comprises a plurality of second cavities arranged one-to-one corresponding to the electromagnetic wave transmission structure, and the plurality of first metal columns are arranged in the third dielectric substrate outside the periphery of the plurality of second cavities.

[0029] In a possible implementation, in the electromagnetic wave radiation system provided by the embodiment of the present disclosure, the electromagnetic shielding structure further comprises:

[0030] A plurality of metal sheets are arranged in the third dielectric substrate facing the electromagnetic wave transmission assembly, and arranged in contact with the first metal column one-to-one.

[0031] In a possible implementation, in the electromagnetic wave radiation system provided by the embodiment of the present disclosure, further comprising:

[0032] A fourth dielectric substrate is arranged on the side of the second metal substrate away from the first metal substrate.

[0033] A plurality of radiation patches are arranged on the side of the fourth dielectric substrate away from the first metal substrate.

[0034] A plurality of opening structures are arranged on the second metal substrate, and the opening structures are arranged one-to-one corresponding to the electromagnetic wave transmission structure.

[0035] In a possible implementation, in the electromagnetic wave radiation system provided by the embodiment of the present disclosure, the shape of the radiation patch comprises a quadrilateral or a hexagon.

[0036] In one possible implementation, in the electromagnetic wave radiation system provided in the embodiments of this disclosure, the shape of the opening structure is arc-shaped.

[0037] In one possible implementation, in the electromagnetic wave radiation system provided in the embodiments of this disclosure, the electromagnetic wave transmission structure includes two strip lines whose extension directions are designed to intersect.

[0038] In one possible implementation, in the electromagnetic wave radiation system provided in the embodiments of this disclosure, the number of opening structures corresponding to each electromagnetic wave transmission structure is the same as the number of strip lines included in each electromagnetic wave transmission structure.

[0039] In one possible implementation, in the electromagnetic wave radiation system provided in the embodiments of this disclosure, the electromagnetic wave transmission structure includes a stripline.

[0040] In one possible implementation, in the electromagnetic wave radiation system provided in the embodiments of this disclosure, the stripline includes a first portion and a second portion connected in the same direction, wherein the widths of the first portion and the second portion are different.

[0041] In one possible implementation, in the electromagnetic radiation system provided in the embodiments of this disclosure, the orthographic projection of the connection between the first part and the second part on the first metal substrate overlaps with the orthographic projection of the first ridge hole on the first metal substrate.

[0042] In one possible implementation, in the electromagnetic radiation system provided in the embodiments of this disclosure, at least two rings of the first metal pillars are arranged around each of the shielding units.

[0043] Accordingly, this disclosure also provides a communication device, including the electromagnetic wave radiation system described above in this disclosure. Attached Figure Description

[0044] Figure 1 A three-dimensional structural schematic diagram of an electromagnetic wave radiation system provided in this embodiment of the present disclosure;

[0045] Figure 2 for Figure 1 Corresponding explosion diagram;

[0046] Figure 3 for Figure 1 A planar schematic diagram of the first metal substrate, waveguide structure, and first ridge-shaped aperture;

[0047] Figure 4 for Figure 1 A planar schematic diagram of the first metal pillar and the first dielectric substrate;

[0048] Figure 5 for Figure 1 a plan view schematic diagram of the second dielectric substrate, the second metal column and the first metal layer in the embodiment;

[0049] Figure 6 for Figure 1 a plan view schematic diagram of the first glass substrate and the electromagnetic wave transmission structure in the embodiment;

[0050] Figure 7 for exciting the center waveguide port of the 3x3 waveguide port feed network;

[0051] Figure 8 for Figure 7 a corresponding simulation parameter schematic diagram;

[0052] Figure 9 for exciting the center waveguide port of the 3x3 waveguide port feed network;

[0053] Figure 10 for Figure 9 a corresponding simulation parameter schematic diagram;

[0054] Figure 11 a three-dimensional structure schematic diagram of another electromagnetic wave radiation system provided by the embodiment of the present disclosure;

[0055] Figure 12 for Figure 11 a corresponding explosion schematic diagram;

[0056] Figure 13 a three-dimensional structure schematic diagram of another electromagnetic wave radiation system provided by the embodiment of the present disclosure;

[0057] Figure 14 for Figure 13 a corresponding explosion schematic diagram;

[0058] Figure 15 a three-dimensional structure schematic diagram of another electromagnetic wave radiation system provided by the embodiment of the present disclosure;

[0059] Figure 16 for Figure 15 a corresponding explosion schematic diagram;

[0060] Figure 17 a three-dimensional structure schematic diagram of another electromagnetic wave radiation system provided by the embodiment of the present disclosure;

[0061] Figure 18 for Figure 17 a corresponding explosion schematic diagram;

[0062] Figure 19 a three-dimensional structure schematic diagram of another electromagnetic wave radiation system provided by the embodiment of the present disclosure;

[0063] Figure 20 For Figure 19 a corresponding exploded schematic view;

[0064] Figure 21 For another three-dimensional structural schematic view of an electromagnetic wave radiation system provided by an embodiment of the present disclosure;

[0065] Figure 22 For Figure 21 a corresponding exploded schematic view;

[0066] Figure 23 For another three-dimensional structural schematic view of an electromagnetic wave radiation system provided by an embodiment of the present disclosure;

[0067] Figure 24 For Figure 23 a corresponding exploded schematic view. DETAILED DESCRIPTION

[0068] In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. And the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present disclosure.

[0069] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood as the usual meanings understood by those of ordinary skill in the art to which the present disclosure belongs. The “includes” or “contains” and similar words used in the present disclosure mean that the elements or objects appearing before the words cover the elements or objects listed after the words and their equivalents, without excluding other elements or objects. The “connection” or “connection” and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. “In”, “out”, “up”, “down” and the like only represent relative positional relationships, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0070] It should be noted that the size and shape of each figure in the drawings do not reflect the true proportions, but only serve to illustrate the present disclosure. And the same or similar reference numbers represent the same or similar elements or elements with the same or similar functions throughout.

[0071] Glass-based devices and circuits play an important role in modern wireless communication systems, and liquid crystal phase shifters and glass-based antennas have good working characteristics and novel design schemes, and have become hot devices for scientific research in colleges and universities and engineering application in enterprises in recent years. However, the electromagnetic crosstalk problem in glass-based devices and circuits will seriously affect the working performance of the entire communication system.

[0072] At present, the most common and effective method to solve the electromagnetic crosstalk problem between glass-based devices and circuits is to make a through hole in the glass substrate. However, due to the special properties of glass materials, it is difficult to punch holes on the glass substrate.

[0073] In one possible implementation, in order to solve the problem of being difficult to punch holes on the glass substrate to solve the electromagnetic crosstalk problem between glass-based devices and circuits, the electromagnetic wave radiation system provided by the embodiments of the present disclosure includes: Figure 1 and Figure 2 as shown, Figure 1 a three-dimensional structure schematic diagram of the electromagnetic wave radiation system provided by the embodiments of the present disclosure, Figure 2 as shown, Figure 1 a corresponding explosion schematic diagram, the electromagnetic wave radiation system includes:

[0074] a first metal substrate 1;

[0075] a second metal substrate 2, which is arranged opposite to the first metal substrate 1;

[0076] an electromagnetic wave transmission assembly 3 arranged between the first metal substrate 1 and the second metal substrate 2; the electromagnetic wave transmission assembly 3 includes: a first glass substrate 31 and a second glass substrate 32 arranged opposite to each other, a liquid crystal layer 33 arranged between the first glass substrate 31 and the second glass substrate 32, and a plurality of electromagnetic wave transmission structures 34 arranged on the side of the first glass substrate 31 facing the liquid crystal layer 33; wherein the first glass substrate 31 is close to the first metal substrate 1; as shown, Figure 6 as shown, Figure 6 a planar schematic diagram of the first glass substrate 31 and the electromagnetic wave transmission structure 34;

[0077] an electromagnetic shielding structure 4 arranged between the electromagnetic wave transmission assembly 3 and the first metal substrate 1, the electromagnetic shielding structure 4 includes a plurality of shielding units P surrounded by a plurality of first metal columns 41, the shielding units P are arranged one by one corresponding to the electromagnetic wave transmission structures 34, and the orthographic projection of the electromagnetic wave transmission structure 34 on the first metal substrate 1 is located in the orthographic projection range of the shielding unit P on the first metal substrate 1.

[0078] The electromagnetic wave radiation system provided by the embodiments of the present disclosure has the following advantages.

[0079] In specific implementation, in the electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 1 、and Figure 2 The electromagnetic shielding structure 4 further comprises:

[0080] The first dielectric substrate 42 is arranged between the first metal substrate 1 and the electromagnetic wave transmission assembly 3, and comprises a plurality of first cavities 421 corresponding to the electromagnetic wave transmission structure 34, and the plurality of first metal columns 41 are arranged in the first dielectric substrate 42 at the periphery of the plurality of first cavities 421 in a spaced manner; as shown in Figure 4 , Figure 4 which is a plan view of the first metal column 41 and the first dielectric substrate 42; wherein the shape of the first cavity 421 is rectangular, but is not limited thereto;

[0081] The second dielectric substrate 43 is arranged between the first dielectric substrate 42 and the electromagnetic wave transmission assembly 3;

[0082] The plurality of second metal columns 44 are arranged in the second dielectric substrate 43 in a spaced manner and in one-to-one correspondence with the first metal columns 41, so that the arrangement mode of the second metal columns 44 is the same as that of the first metal columns 41, and the second metal columns 44 and the first metal columns 41 constitute metal columns;

[0083] The electromagnetic wave radiation system further comprises:

[0084] The plurality of waveguide structures 5 are arranged on the side of the first metal substrate 1 facing the second metal substrate 2, the waveguide structures 5 are arranged in one-to-one correspondence with the first cavities 421, the orthographic projection of the first cavities 421 on the first metal substrate 1 coincides with the orthographic projection of the waveguide structures 5 on the first metal substrate 1, and the first dielectric substrate 42 is arranged at the periphery of the plurality of waveguide structures 5 in a first cavity 421; specifically, the thickness of the first dielectric substrate 42 is the same as the height of the waveguide structures 5, the size of the first cavities 421 is the same as the size of the waveguide structures 52, so that the first dielectric substrate 42 is just clamped at the periphery of each waveguide structure 5;

[0085] A first ridge-shaped hole V1, penetrating the waveguide structure 5 and the first metal substrate 1 below the waveguide structure 5; as shown in Figure 3 , Figure 3 A plan view of the first metal substrate 1, the waveguide structure 5 and the first ridge-shaped hole V1; wherein the first ridge-shaped hole V1 is a transmission channel for electromagnetic wave energy, and the first metal substrate 1, the waveguide structure 5 and the first ridge-shaped hole V1 constitute a waveguide port feeding network;

[0086] A plurality of first metal layers 6, disposed on the side of the second dielectric substrate 43 facing the second metal substrate 2, and corresponding to the waveguide structure 5, and the size of the first metal layer 6 is the same as the size of the waveguide structure 5, and the first metal layer 6 has a second ridge-shaped hole V2 corresponding to the first ridge-shaped hole V1; as shown in Figure 5 , Figure 5 A plan view of the second dielectric substrate 43, the second metal column 44 and the first metal layer 6.

[0087] In specific implementation, in the above-mentioned electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 1 and Figure 2 The orthographic projection of the first ridge-shaped hole V1 on the first metal substrate 1 and the orthographic projection of the second ridge-shaped hole V2 on the first metal substrate 1 overlap each other. In this way, the electromagnetic wave transmitted from the first ridge-shaped hole V1 can be completely transmitted to the second ridge-shaped hole V2, thereby improving the electromagnetic wave transmission amount.

[0088] In specific implementation, in the above-mentioned electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 1 and Figure 2 The orthographic projection of the first ridge-shaped hole V1 on the first metal substrate 1 and the orthographic projection of the second ridge-shaped hole V2 on the first metal substrate 1 can be completely overlapped, and the orthographic projection of the first ridge-shaped hole V1 and the second ridge-shaped hole V2 on the first metal substrate 1 is located within the orthographic projection of the shielding unit P on the first metal substrate 1, so that the orthographic projection of the connection between the first part 3411 and the second part 3412 on the first metal substrate 1 is arranged within the orthographic projection of the first ridge-shaped hole V1 and the second ridge-shaped hole V2 on the first metal substrate 1. Preferably, the orthographic projection of the connection between the first part 3411 and the second part 3412 on the first metal substrate 1 is arranged to partially overlap the orthographic projection of the first ridge-shaped hole V1 on the first metal substrate 1; more preferably, the orthographic projection of the connection between the first part 3411 and the second part 3412 on the first metal substrate 1 is arranged to overlap the orthographic projection of the center position of the first ridge-shaped hole V1 and the second ridge-shaped hole V2 on the first metal substrate 1, i.e. the orthographic projection of the connection between the first part 3411 and the second part 3412 on the first metal substrate 1 is arranged to be located at the center position of the shielding unit P.

[0089] In a specific implementation, in the electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 1 and Figure 2 , the electromagnetic wave transmission structure 34 can include a strip line 341; as shown in Figure 6 , the strip line 341 includes a first part 3411 and a second part 3412 connected in the same direction, and the width of the first part 3411 and the width of the second part 3412 are different. For example, the width of the first part 3411 is smaller than the width of the second part 3412; of course, the width of the first part 3411 can also be greater than the width of the second part 3412; those skilled in the art can adjust the width of the first part 3411 and the width of the second part 3412 according to actual needs.

[0090] Specifically, Figure 1 and Figure 2 , the first metal substrate 1, the waveguide structure 5 and the first ridge hole V1 in

[0092] are used as a waveguide port feeding network, electromagnetic wave energy is fed from the first ridge hole V1, the first metal substrate 1, the first dielectric substrate 42, the first metal column 41, the second dielectric substrate 43, the second metal column 44 and the second metal substrate 2 together constitute a substrate integrated gap waveguide, the second metal substrate 2 is used as an ideal electric conductor (PEC), the metal column composed of the first metal column 41 and the second metal column 44 is used as a magnetic conductor (AMC), and the air gap layer is between the upper and lower layers, after the electromagnetic wave energy is output from the waveguide port (V1), it is coupled to the electromagnetic wave transmission structure 34 through the second ridge hole V2 and the air gap layer, Figure 2 , the electromagnetic wave transmission structure 34 (strip line) of Figure 2 is equivalent to a probe, and the electromagnetic wave energy can be obtained from the probe.

[0091] It should be noted that the embodiments of the present disclosure Figure 2 take the waveguide feeding network in a 3x3 array as an example, but it is not limited to this, and there can be less than 9 waveguide feeding networks, or more waveguide feeding networks can be provided.

[0092] In a possible implementation, in order to solve the problem that it is difficult to punch holes in the glass substrate to solve the electromagnetic crosstalk between the glass substrate and the circuit, the embodiments of the present disclosure provide another electromagnetic wave radiation system, as shown in Figure 11 and Figure 12 , the electromagnetic wave radiation system provided by the embodiments of the present disclosure is shown in Figure 11 , Figure 12 For Figure 11 Corresponding explosion diagram, the electromagnetic wave radiation system comprises:

[0093] The first metal substrate 1;

[0094] The second metal substrate 2 is arranged opposite to the first metal substrate 1;

[0095] The electromagnetic wave transmission assembly 3 is arranged between the first metal substrate 1 and the second metal substrate 2; the electromagnetic wave transmission assembly 3 comprises: the first glass substrate 31 and the second glass substrate 32 arranged oppositely, the liquid crystal layer 33 arranged between the first glass substrate 31 and the second glass substrate 32, and a plurality of electromagnetic wave transmission structures 34 arranged on the side of the first glass substrate 31 facing the liquid crystal layer 33; wherein the first glass substrate 31 is close to the first metal substrate 1;

[0096] The electromagnetic shielding structure 4 is arranged between the electromagnetic wave transmission assembly 3 and the first metal substrate 1, and the electromagnetic shielding structure 4 comprises a plurality of shielding units P surrounded by a plurality of first metal columns 41, the shielding units P are arranged one by one corresponding to the electromagnetic wave transmission structures 34, and the orthographic projection of the electromagnetic wave transmission structure 34 on the first metal substrate 1 is located in the orthographic projection range of the shielding unit P on the first metal substrate 1.

[0097] The above-mentioned electromagnetic wave radiation system provided by the embodiments of the present disclosure can form a periodic structure with a stopband characteristic by arranging a plurality of shielding units surrounded by a plurality of first metal columns between the electromagnetic wave transmission structure and the first metal substrate, so that the energy of the electromagnetic wave is well confined in the shielding unit and transmitted to the electromagnetic wave transmission structure. Therefore, the electromagnetic shielding structure can effectively solve the problem of electromagnetic energy crosstalk between different electromagnetic wave transmission structures in the electromagnetic wave transmission structure, and the present disclosure avoids using the glass punching process with extremely high processing difficulty to solve the problem of electromagnetic energy crosstalk, so that the overall working performance of the electromagnetic wave radiation system can be effectively improved.

[0098] In specific implementation, in the above-mentioned electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 11 and Figure 12 The electromagnetic shielding structure 4 further comprises:

[0099] The first dielectric substrate 42 is arranged between the first metal substrate 1 and the electromagnetic wave transmission assembly 3, the first dielectric substrate 42 comprises a plurality of first cavities 421 arranged one by one corresponding to the electromagnetic wave transmission structures 34, and the plurality of first metal columns 41 are spaced and embedded in the first dielectric substrate 42 outside the periphery of the plurality of first cavities 421; wherein the shape of the first cavity 421 is rectangular, of course, not limited to this;

[0100] The second dielectric substrate 43 is arranged between the first dielectric substrate 42 and the electromagnetic wave transmission assembly 3.

[0101] The plurality of second metal columns 44 are arranged in the second dielectric substrate 43 in a spaced manner and in one-to-one correspondence with the first metal columns 41. The arrangement of the second metal columns 44 is the same as that of the first metal columns 41. The second metal columns 44 and the first metal columns 41 form metal columns.

[0102] The electromagnetic wave radiation system further comprises:

[0103] The plurality of waveguide structures 5 are arranged on the side of the first metal substrate 1 facing the second metal substrate 2. The waveguide structures 5 are arranged in one-to-one correspondence with the first cavities 421. The orthographic projection of the first cavities 421 on the first metal substrate 1 coincides with the orthographic projection of the waveguide structures 5 on the first metal substrate 1. The first dielectric substrate 42 is embedded in the periphery of the plurality of waveguide structures 5 through the first cavities 421. Specifically, the thickness of the first dielectric substrate 42 is the same as the height of the waveguide structures 5. The size of the first cavities 421 is the same as that of the waveguide structures 52, so that the first dielectric substrate 42 is just clamped in the periphery of each waveguide structure 5.

[0104] The first ridge-shaped hole V1 penetrates the waveguide structure 5 and the first metal substrate 1 below the waveguide structure 5. The first ridge-shaped hole V1 is a transmission channel for electromagnetic wave energy. The first metal substrate 1, the waveguide structure 5, and the first ridge-shaped hole V1 form a waveguide port-fed network.

[0105] The plurality of first metal layers 6 are arranged on the side of the second dielectric substrate 43 facing the second metal substrate 2 and in one-to-one correspondence with the waveguide structures 5. The size of the first metal layers 6 is the same as that of the waveguide structures 5. The first metal layers 6 have second ridge-shaped holes V2 arranged in one-to-one correspondence with the first ridge-shaped holes V1.

[0106] In specific implementation, in the above electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 11 and Figure 12 the orthographic projection of the first ridge-shaped hole V1 on the first metal substrate 1 and the orthographic projection of the second ridge-shaped hole V2 on the first metal substrate 1 overlap each other. In this way, the electromagnetic wave transmitted from the first ridge-shaped hole V1 can be completely transmitted to the second ridge-shaped hole V2, thereby improving the electromagnetic wave transmission amount.

[0107] In specific implementation, in the above electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 11 and Figure 12As shown in FIG. 1, the first ridge-shaped hole V1 and the second ridge-shaped hole V2 can be completely overlapped on the first metal substrate 1, and the projections of the first ridge-shaped hole V1 and the second ridge-shaped hole V2 on the first metal substrate 1 are located within the projection of the shielding unit P on the first metal substrate 1, so that the projection of the connection between the first part 3411 and the second part 3412 on the first metal substrate 1 is located within the projection of the first ridge-shaped hole V1 and the second ridge-shaped hole V2 on the first metal substrate 1. Preferably, the projection of the connection between the first part 3411 and the second part 3412 on the first metal substrate 1 is partially overlapped with the projection of the first ridge-shaped hole V1 on the first metal substrate 1; more preferably, the projection of the connection between the first part 3411 and the second part 3412 on the first metal substrate 1 is overlapped with the projection of the center position of the first ridge-shaped hole V1 and the second ridge-shaped hole V2 on the first metal substrate 1, that is, the projection of the connection between the first part 3411 and the second part 3412 on the first metal substrate 1 is located at the center position of the shielding unit P.

[0108] In a specific implementation, in the electromagnetic wave radiation system provided by the embodiment of the present disclosure, as shown in FIG. 1, Figure 11 and Figure 12 As shown in FIG. 1, the electromagnetic wave transmission structure 34 can be a patch antenna, and the second metal substrate 2 includes a plurality of hollow structures 21 corresponding to the waveguide structures 5.

[0109] Specifically, Figure 11 and Figure 12 The first metal substrate 1, the waveguide structure 5 and the first ridge-shaped hole V1 in FIG. 1 serve as a waveguide port-fed network, electromagnetic wave energy is fed from the first ridge-shaped hole V1, and the first metal substrate 1, the first dielectric substrate 42, the first metal column 41, the second dielectric substrate 43, the second metal column 44 and the second metal substrate 2 together constitute a substrate integrated gap waveguide, the second metal substrate 2 serves as an ideal electric conductor (PEC), and the metal column composed of the first metal column 41 and the second metal column 44 serves as a magnetic conductor (AMC). The air gap layer is between the upper and lower layers, and after the electromagnetic wave energy is output from the waveguide port (V1), it is coupled to the electromagnetic wave transmission structure 34 through the second ridge-shaped hole V2 and the air gap layer. The hollow structure 21 can enable the electromagnetic wave transmission structure 34 (patch antenna) to radiate energy to the free space. Figure 12 The gap waveguide in FIG. 1 can effectively avoid the problem of electromagnetic wave crosstalk on adjacent electromagnetic wave transmission structures 34 because the upper and lower metal plates thereof make electromagnetic waves propagate only inside the shielding unit P. When the waveguide port (V1) of one of the shielding units P is fed, the energy is transmitted through the gap waveguide to the electromagnetic wave transmission structure 34 above it, thereby effectively avoiding the problem of electromagnetic wave crosstalk on adjacent electromagnetic wave transmission structures 34.

[0110] It should be noted that the embodiments of the present disclosure Figure 12 is taken as an example of a 3x3 array of waveguide feed networks, of course, not limited to this, can be less than 9 waveguide feed networks, but also can be provided more waveguide feed networks.

[0111] In a possible implementation, in order to solve the problem of being difficult to punch holes on the glass substrate to solve the electromagnetic crosstalk between the glass-based device and the circuit, the embodiment of the present disclosure provides another electromagnetic wave radiation system, as shown in Figure 13 and Figure 14 , as shown in Figure 13 is a three-dimensional structure schematic diagram of another electromagnetic wave radiation system provided by the embodiment of the present disclosure, Figure 14 is Figure 13 The corresponding explosion schematic diagram, the electromagnetic wave radiation system comprises:

[0112] The first metal substrate 1;

[0113] The second metal substrate 2 is arranged opposite to the first metal substrate 1;

[0114] The electromagnetic wave transmission structure assembly 3 is arranged between the first metal substrate 1 and the second metal substrate 2; the electromagnetic wave transmission assembly 3 comprises: the first glass substrate 31 and the second glass substrate 32 arranged opposite to each other, the liquid crystal layer 33 arranged between the first glass substrate 31 and the second glass substrate 32, and a plurality of electromagnetic wave transmission structures 34 arranged on the side of the first glass substrate 31 facing the liquid crystal layer 33; wherein the first glass substrate 31 is close to the first metal substrate 1;

[0115] The electromagnetic shielding structure 4 is arranged between the electromagnetic wave transmission assembly 3 and the first metal substrate 1, and the electromagnetic shielding structure 4 comprises a plurality of shielding units P surrounded by a plurality of first metal columns 41, the shielding units P are arranged one by one corresponding to the electromagnetic wave transmission structures 34, and the orthographic projection of the electromagnetic wave transmission structure 34 on the first metal substrate 1 is located in the orthographic projection range of the shielding unit P on the first metal substrate 1.

[0116] The above-mentioned electromagnetic wave radiation system provided by the embodiment of the present disclosure, by arranging a plurality of shielding units surrounded by a plurality of first metal columns between the electromagnetic wave transmission structure and the first metal substrate, a plurality of shielding units can form a periodic structure with stopband characteristics, so that the energy of electromagnetic waves is well confined in the shielding unit and transmitted to the electromagnetic wave transmission structure, Therefore, the electromagnetic shielding structure can effectively solve the problem of electromagnetic energy crosstalk between different electromagnetic wave transmission structures in the electromagnetic wave transmission structure, and the present disclosure avoids using the glass punching process with extremely high processing difficulty to solve the problem of electromagnetic energy crosstalk, Therefore, the present disclosure can effectively improve the overall working performance of the electromagnetic wave radiation system.

[0117] In specific implementation, in the above-mentioned electromagnetic wave radiation system provided by the embodiment of the present disclosure, as shown in Figure 13 and Figure 14 As shown in FIGS. 1 and 2, the electromagnetic wave radiation system further comprises:

[0118] a plurality of waveguide structures 5 arranged on the side of the first metal substrate 1 facing the second metal substrate 2, the waveguide structures 5 being arranged one-to-one with the electromagnetic wave transmission structures 34, and the first metal columns 41 being arranged around the plurality of waveguide structures 5;

[0119] a first ridge hole V1 penetrating the waveguide structures 5 and the first metal substrate 1 below the waveguide structures 5; wherein the first ridge hole V1 is a transmission channel for electromagnetic wave energy, and the first metal substrate 1, the waveguide structures 5 and the first ridge hole V1 constitute a waveguide port-fed network;

[0120] a second dielectric substrate 43 arranged between the waveguide structures 5 and the electromagnetic wave transmission assembly 3;

[0121] a plurality of first metal layers 6 arranged on the side of the second dielectric substrate 43 facing the second metal substrate 2, and arranged one-to-one with the waveguide structures 5, and the size of the first metal layer 6 is the same as the size of the waveguide structure 5, and the first metal layer 6 has a second ridge hole V2 arranged corresponding to the first ridge hole V1.

[0122] In specific implementation, in the above electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in FIGS. 1 and 2, the first ridge hole V1 has a first ridge hole V1 on the first metal substrate 1. The orthogonal projection of the second ridge hole V2 on the first metal substrate 1 overlaps each other. In this way, the electromagnetic wave transmitted from the first ridge hole V1 can be completely transmitted to the second ridge hole V2, and the electromagnetic wave transmission amount is improved. Figure 13 and Figure 14 In specific implementation, in the above electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in FIGS. 1 and 2, the first ridge hole V1 has a first ridge hole V1 on the first metal substrate 1. The orthogonal projection of the second ridge hole V2 on the first metal substrate 1 overlaps each other. In this way, the electromagnetic wave transmitted from the first ridge hole V1 can be completely transmitted to the second ridge hole V2, and the electromagnetic wave transmission amount is improved.

[0123] In specific implementation, in the above electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in FIGS. 1 and 2, the first ridge hole V1 has a first ridge hole V1 on the first metal substrate 1. The orthogonal projection of the second ridge hole V2 on the first metal substrate 1 overlaps each other. In this way, the electromagnetic wave transmitted from the first ridge hole V1 can be completely transmitted to the second ridge hole V2, and the electromagnetic wave transmission amount is improved. Figure 13 and Figure 14As shown in FIG. 1, the front projection of the first ridge-shaped hole V1 on the first metal substrate 1 and the front projection of the second ridge-shaped hole V2 on the first metal substrate 1 can be completely overlapped, and the front projections of the first ridge-shaped hole V1 and the second ridge-shaped hole V2 on the first metal substrate 1 are located within the front projection of the shielding unit P on the first metal substrate 1, so that the front projection of the connection between the first part 3411 and the second part 3412 on the first metal substrate 1 can be arranged within the front projections of the first ridge-shaped hole V1 and the second ridge-shaped hole V2 on the first metal substrate 1. Preferably, the front projection of the connection between the first part 3411 and the second part 3412 on the first metal substrate 1 is arranged to partially overlap the front projection of the first ridge-shaped hole V1 on the first metal substrate 1; more preferably, the front projection of the connection between the first part 3411 and the second part 3412 on the first metal substrate 1 is arranged to overlap the front projection of the center position of the first ridge-shaped hole V1 and the second ridge-shaped hole V2 on the first metal substrate 1, i.e. the front projection of the connection between the first part 3411 and the second part 3412 on the first metal substrate 1 is arranged to be located at the center position of the shielding unit P.

[0124] In a specific implementation, in the electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 13 and Figure 14 , the electromagnetic wave transmission structure 34 can include a strip line 341; as shown in Figure 6 , the structure of the strip line 341 includes a first part 3411 and a second part 3412 connected in the same direction, and the width of the first part 3411 and the width of the second part 3412 are different. For example, the width of the first part 3411 is smaller than the width of the second part 3412; of course, the width of the first part 3411 can also be greater than the width of the second part 3412; those skilled in the art can adjust the width of the first part 3411 and the width of the second part 3412 according to actual needs.

[0125] Specifically, Figure 13 and Figure 14 , the first metal substrate 1, the waveguide structure 5 and the first ridge-shaped hole V1 in the above-mentioned electromagnetic wave radiation system serve as a waveguide port-fed network, electromagnetic wave energy is fed from the first ridge-shaped hole V1, the first metal column 41 and the second metal substrate 2 form a metal integrated gap waveguide, the second metal substrate 2 serves as a perfect electric conductor (PEC), the first metal column 41 serves as a magnetic conductor (AMC), and the air gap layer is between the upper and lower layers, after the electromagnetic wave energy is output from the waveguide port (V1), it is coupled to the electromagnetic wave transmission structure 34 through the second ridge-shaped hole V2 and the air gap layer, Figure 14 the electromagnetic wave transmission structure 34 (microstrip line) is equivalent to a probe, and the electromagnetic wave energy can be obtained from the probe. Figure 14The gap waveguide in the metal plate makes the electromagnetic wave only propagate inside the shielding unit P. When the waveguide port (V1) of one of the shielding units P is fed, the energy is transmitted to the electromagnetic wave transmission structure 34 above the gap waveguide, thereby effectively avoiding the electromagnetic wave crosstalk problem of the adjacent electromagnetic wave transmission structure 34.

[0126] It should be noted that the embodiments of the present disclosure Figure 14 The waveguide feed network in the 3x3 array is taken as an example, and of course, it is not limited to this. There can be less than 9 waveguide feed networks, and more waveguide feed networks can also be provided.

[0127] In a possible implementation, in order to solve the problem that it is difficult to punch holes on the glass substrate to solve the electromagnetic crosstalk between the glass substrate device and the circuit, the present disclosure provides another electromagnetic wave radiation system, as shown in Figure 15 and Figure 16 as shown, Figure 15 a three-dimensional structure schematic diagram of another electromagnetic wave radiation system provided by the embodiments of the present disclosure, Figure 16 as Figure 17 the corresponding explosion schematic diagram, the electromagnetic wave radiation system comprises:

[0128] a first metal substrate 1;

[0129] a second metal substrate 2, arranged opposite to the first metal substrate 1;

[0130] an electromagnetic wave transmission assembly 3 arranged between the first metal substrate 1 and the second metal substrate 2; the electromagnetic wave transmission assembly 3 comprises: a first glass substrate 31 and a second glass substrate 32 arranged opposite to each other, a liquid crystal layer 33 arranged between the first glass substrate 31 and the second glass substrate 32, and a plurality of electromagnetic wave transmission structures 34 arranged on the side of the first glass substrate 31 facing the liquid crystal layer 33; wherein the first glass substrate 31 is close to the first metal substrate 1;

[0131] an electromagnetic shielding structure 4 arranged between the electromagnetic wave transmission assembly 3 and the first metal substrate 1, the electromagnetic shielding structure 4 comprises a plurality of shielding units P surrounded by a plurality of first metal columns 41, the shielding units P are arranged one by one corresponding to the electromagnetic wave transmission structures 34, and the orthographic projection of the electromagnetic wave transmission structure 34 on the first metal substrate 1 is located in the orthographic projection range of the shielding unit P on the first metal substrate 1.

[0132] The electromagnetic wave radiation system provided by the embodiments of the present disclosure can form a periodic structure with a stopband characteristic through the multiple shielding units formed by the multiple first metal columns between the electromagnetic wave transmission structure and the first metal substrate, so that the energy of the electromagnetic wave is well confined in the shielding units and transmitted to the electromagnetic wave transmission structure, thereby effectively solving the problem of electromagnetic energy crosstalk between different electromagnetic wave transmission structures in the electromagnetic wave transmission structure. In addition, the electromagnetic shielding structure is provided to avoid the use of a glass punching process with extremely high processing difficulty to solve the problem of electromagnetic energy crosstalk, thereby effectively improving the overall working performance of the electromagnetic wave radiation system.

[0133] In specific implementation, in the electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 15 and Figure 16 , the electromagnetic wave radiation system further comprises:

[0134] The multiple waveguide structures 5 are arranged on the side of the first metal substrate 1 facing the second metal substrate 2, and the waveguide structures 5 are arranged one by one corresponding to the electromagnetic wave transmission structure 34, and the first metal column 41 is arranged around the multiple waveguide structures 5;

[0135] The first ridge-shaped hole V1 penetrates the waveguide structure 5 and the first metal substrate 1 below the waveguide structure 5;

[0136] The second dielectric substrate 43 is arranged between the waveguide structure 5 and the electromagnetic wave transmission assembly 3;

[0137] The multiple first metal layers 6 are arranged on the side of the second dielectric substrate 43 facing the second metal substrate 2, and the first metal layers 6 are arranged one by one corresponding to the waveguide structures 5, and the size of the first metal layer 6 is the same as the size of the waveguide structure 5, and the first metal layer 6 has a second ridge-shaped hole V2 arranged corresponding to the first ridge-shaped hole V1.

[0138] In specific implementation, in the electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 15 and Figure 16 , the orthographic projection of the first ridge-shaped hole V1 on the first metal substrate 1 and the orthographic projection of the second ridge-shaped hole V2 on the first metal substrate 1 overlap each other. In this way, the electromagnetic wave transmitted from the first ridge-shaped hole V1 can be completely transmitted to the second ridge-shaped hole V2, thereby improving the electromagnetic wave transmission amount.

[0139] In specific implementation, in the electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 15 and Figure 16As shown in FIG. 1, the first ridge-shaped hole V1 and the second ridge-shaped hole V2 can be completely overlapped on the first metal substrate 1, and the projections of the first ridge-shaped hole V1 and the second ridge-shaped hole V2 on the first metal substrate 1 are located within the projection of the shielding unit P on the first metal substrate 1, so that the connection between the first part 3411 and the second part 3412 on the first metal substrate 1 can be located within the projection of the first ridge-shaped hole V1 and the second ridge-shaped hole V2 on the first metal substrate 1. Preferably, the projection of the connection between the first part 3411 and the second part 3412 on the first metal substrate 1 is partially overlapped with the projection of the first ridge-shaped hole V1 on the first metal substrate 1; more preferably, the projection of the connection between the first part 3411 and the second part 3412 on the first metal substrate 1 is overlapped with the projection of the center position of the first ridge-shaped hole V1 and the second ridge-shaped hole V2 on the first metal substrate 1, that is, the projection of the connection between the first part 3411 and the second part 3412 on the first metal substrate 1 is located at the center position of the shielding unit P.

[0140] In a specific implementation, in the electromagnetic wave radiation system provided by the embodiment of the present disclosure, as shown in FIG. 1, Figure 15 and Figure 16 The electromagnetic wave transmission structure 34 can be a patch antenna, and the second metal substrate 2 includes a plurality of hollow structures 21 corresponding to the waveguide structures 5.

[0141] Specifically, Figure 15 and Figure 16 The first metal substrate 1, the waveguide structure 5 and the first ridge-shaped hole V1 in FIG. 1 form a waveguide port-fed network, electromagnetic wave energy is fed from the first ridge-shaped hole V1, the first metal column 41 and the second metal substrate 2 form a metal integrated gap waveguide, the second metal substrate 2 is a perfect electric conductor (PEC), the first metal column 41 is a magnetic conductor (AMC), and the air gap layer is between the upper and lower layers. After the electromagnetic wave energy is output from the waveguide port (V1), it is coupled to the electromagnetic wave transmission structure 34 above through the second ridge-shaped hole V2 and the air gap layer, and the hollow structure 21 can enable the electromagnetic wave transmission structure 34 (patch antenna) to radiate energy to the free space. Figure 16 The gap waveguide in FIG. 1 can only propagate electromagnetic waves inside the shielding unit P due to the upper and lower closed metal plates, and when the waveguide port (V1) of a certain shielding unit P is fed, the energy is transmitted to the electromagnetic wave transmission structure 34 above through the gap waveguide, thereby effectively avoiding the problem of electromagnetic wave crosstalk on adjacent electromagnetic wave transmission structures 34.

[0142] It should be noted that the embodiment of the present disclosure Figure 16is taken as an example of a 3*3 array of waveguide feed networks, of course, not limited to this, can be less than 9 waveguide feed networks, but also can be provided more waveguide feed networks.

[0143] In a possible implementation, in order to solve the problem that it is difficult to punch holes on the glass substrate to solve the electromagnetic crosstalk between the glass-based device and the circuit, the electromagnetic wave radiation system provided by the embodiments of the present disclosure is another electromagnetic wave radiation system, as shown in Figure 17 and Figure 18 , Figure 17 a three-dimensional structure schematic diagram of the electromagnetic wave radiation system provided by the embodiments of the present disclosure, Figure 18 for Figure 17 the corresponding explosion schematic diagram, the electromagnetic wave radiation system comprises:

[0144] a first metal substrate 1;

[0145] a second metal substrate 2, which is arranged opposite to the first metal substrate 1;

[0146] an electromagnetic wave transmission component 3 arranged between the first metal substrate 1 and the second metal substrate 2; the electromagnetic wave transmission component 3 comprises: a first glass substrate 31 and a second glass substrate 32 arranged oppositely, a liquid crystal layer 33 arranged between the first glass substrate 31 and the second glass substrate 32, and a plurality of electromagnetic wave transmission structures 34 arranged on the side of the first glass substrate 31 facing the liquid crystal layer 33; wherein the first glass substrate 31 is close to the first metal substrate 1;

[0147] an electromagnetic shielding structure 4 arranged between the electromagnetic wave transmission component 3 and the first metal substrate 1, the electromagnetic shielding structure 4 comprises a plurality of shielding units P surrounded by a plurality of first metal columns 41, the shielding units P are arranged one by one corresponding to the electromagnetic wave transmission structures 34, and the orthographic projection of the electromagnetic wave transmission structure 34 on the first metal substrate 1 is located in the orthographic projection range of the shielding unit P on the first metal substrate 1.

[0148] The electromagnetic wave radiation system provided by the embodiments of the present disclosure, by arranging a plurality of shielding units surrounded by a plurality of first metal columns between the electromagnetic wave transmission structure and the first metal substrate, the plurality of shielding units can form a periodic structure with a stopband characteristic, so that the energy of the electromagnetic wave is well confined in the shielding unit and transmitted to the electromagnetic wave transmission structure, Therefore, the electromagnetic shielding structure can effectively solve the problem of electromagnetic energy crosstalk between different electromagnetic wave transmission structures in the electromagnetic wave transmission structure, and the present disclosure avoids using the glass punching process with extremely high processing difficulty to solve the problem of electromagnetic energy crosstalk, Therefore, the present disclosure can effectively improve the overall working performance of the electromagnetic wave radiation system.

[0149] In specific implementation, in the electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 17 and Figure 18 As shown in the electromagnetic wave radiation system further comprises:

[0150] A plurality of waveguide structures 5 are arranged on the side of the first metal substrate 1 facing the second metal substrate 2, and the waveguide structures 5 are arranged one-to-one corresponding to the electromagnetic wave transmission structures 34, and the first metal column 41 is arranged around the periphery of the plurality of waveguide structures 5;

[0151] A fourth dielectric substrate 7 is arranged on the side of the second metal substrate 2 away from the first metal substrate 1;

[0152] A plurality of radiation patches 8 are arranged on the side of the fourth dielectric substrate 7 away from the first metal substrate 1;

[0153] A plurality of aperture structures 22 are arranged on the second metal substrate 2, and the aperture structures 22 are arranged one-to-one corresponding to the electromagnetic wave transmission structures 34.

[0154] In specific implementation, in the above-mentioned electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 17 and Figure 18 , the shape of the radiation patch 8 is a quadrilateral; of course, the shape of the radiation patch 8 can also be a hexagon or other shapes, and the embodiments of the present disclosure do not limit this.

[0155] In specific implementation, in the above-mentioned electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 17 and Figure 18 , the shape of the aperture structure 22 is arc-shaped, the electromagnetic wave transmission structure 34 includes two strip lines 341 with intersecting extension directions, and the number of aperture structures 22 corresponding to each electromagnetic wave transmission structure 34 is the same as the number of strip lines 341 included in each electromagnetic wave transmission structure 34.

[0156] Specifically, Figure 17 and Figure 18 , the electromagnetic wave transmission assembly 3 in as a waveguide port-fed network, electromagnetic wave energy is fed from the electromagnetic wave transmission structure 34, the first metal substrate 1, the first metal column 41 and the second metal substrate 2 form an intermetallic gap waveguide, the second metal substrate 2 serves as an ideal electric conductor (PEC), the first metal column 41 serves as a magnetic conductor (AMC), and the air gap layer is arranged between the upper and lower layers, electromagnetic wave energy is transmitted from the electromagnetic wave transmission structure 34, coupled to the radiation patch 8 after passing through the aperture structure 22, and radiated to the free space. Figure 17 and Figure 18 , the gap waveguide in due to the upper and lower closed metal plates, electromagnetic waves can only propagate inside the shielding unit P, when fed from one of the electromagnetic wave transmission structures 34, the energy is transmitted through the gap waveguide to the radiation patch 8 above it, so that the problem of electromagnetic wave crosstalk on adjacent electromagnetic wave transmission structures 34 can be effectively avoided.

[0157] It should be noted that the embodiments of the present disclosure Figure 18 are taken as an example of a 3x3 array of waveguide feed networks, of course, not limited to this, can be less than 9 waveguide feed networks, but also can be set more waveguide feed network.

[0158] In a possible implementation, in order to solve the problem of difficulty in punching holes on the glass substrate to solve the electromagnetic interference between the glass substrate and the circuit, the embodiments of the present disclosure provide another electromagnetic wave radiation system, as shown in Figure 19 and Figure 20 , Figure 19 a three-dimensional structure diagram of another electromagnetic wave radiation system provided by the embodiments of the present disclosure, Figure 20 is Figure 19 the corresponding explosion diagram, the electromagnetic wave radiation system comprises:

[0159] a first metal substrate 1;

[0160] a second metal substrate 2, which is arranged opposite to the first metal substrate 1;

[0161] an electromagnetic wave transmission component 3 arranged between the first metal substrate 1 and the second metal substrate 2; the electromagnetic wave transmission component 3 comprises: a first glass substrate 31 and a second glass substrate 32 arranged oppositely, a liquid crystal layer 33 arranged between the first glass substrate 31 and the second glass substrate 32, and a plurality of electromagnetic wave transmission structures 34 arranged on the side of the first glass substrate 31 facing the liquid crystal layer 33; wherein the first glass substrate 31 is close to the first metal substrate 1;

[0162] an electromagnetic shielding structure 4 arranged between the electromagnetic wave transmission component 3 and the first metal substrate 1, the electromagnetic shielding structure 4 comprises a plurality of shielding units P surrounded by a plurality of first metal columns 41, the shielding units P are arranged one by one corresponding to the electromagnetic wave transmission structures 34, and the orthogonal projection of the electromagnetic wave transmission structure 34 on the first metal substrate 1 is located in the orthogonal projection range of the shielding unit P on the first metal substrate 1.

[0163] The above electromagnetic wave radiation system provided by the embodiments of the present disclosure, by arranging a plurality of shielding units surrounded by a plurality of first metal columns between the electromagnetic wave transmission structure and the first metal substrate, the plurality of shielding units can form a periodic structure with stopband characteristics, so that the energy of the electromagnetic wave is well confined in the shielding unit and transmitted to the electromagnetic wave transmission structure. Therefore, the electromagnetic shielding structure can effectively solve the problem of electromagnetic energy crosstalk between different electromagnetic wave transmission structures in the electromagnetic wave transmission structure, and the present disclosure avoids using the glass punching process with extremely high processing difficulty to solve the problem of electromagnetic energy crosstalk, so the present disclosure can effectively improve the overall working performance of the electromagnetic wave radiation system.

[0164] In specific implementation, in the electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 19 and Figure 20 , the electromagnetic shielding structure 4 further comprises:

[0165] a third dielectric substrate 10 arranged between the first metal substrate 1 and the electromagnetic wave transmission assembly 3, the third dielectric substrate 10 comprising a plurality of second cavities 101 arranged one-to-one with the electromagnetic wave transmission structures 34, and the plurality of first metal columns 41 are arranged in the third dielectric substrate 10 in the periphery of the plurality of second cavities 101 in a spaced manner;

[0166] The electromagnetic wave radiation system further comprises:

[0167] a fourth dielectric substrate 7 arranged on the side of the second metal substrate 2 away from the first metal substrate 1;

[0168] a plurality of radiation patches 8 arranged on the side of the fourth dielectric substrate 7 away from the first metal substrate 1;

[0169] a plurality of aperture structures 22 arranged on the second metal substrate, the aperture structures 22 being arranged one-to-one with the electromagnetic wave transmission structures 34.

[0170] In specific implementation, in the electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 19 and Figure 20 , the radiation patch 8 is in the shape of a quadrilateral; of course, the radiation patch 8 can also be in the shape of a hexagon or other shapes, and the embodiments of the present disclosure do not limit this.

[0171] In specific implementation, in the electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 19 and Figure 20 , the aperture structure 22 is in the shape of an arc, the electromagnetic wave transmission structure 34 comprises two strip lines 341 with intersecting extension directions, and the number of aperture structures 22 corresponding to each electromagnetic wave transmission structure 34 is the same as the number of strip lines 341 included in each electromagnetic wave transmission structure 34.

[0172] In specific implementation, in the electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 19 and Figure 20 , at least two rings of first metal columns 41 are arranged in the periphery of each shielding unit P. The embodiments of the present disclosure take an example of two rings of first metal columns 41 arranged in the periphery of each shielding unit P, and of course, more rings can also be arranged, and the present disclosure does not limit this.

[0173] Specifically, Figure 19 and Figure 20The electromagnetic wave transmission component 3 in the electromagnetic wave radiation system 1 is used as a waveguide port feed network, electromagnetic wave energy is fed from the electromagnetic wave transmission structure 34, the first metal substrate 1, the third dielectric substrate 10, the first metal column 41 and the second metal substrate 2 constitute a substrate integrated gap waveguide, the second metal substrate 2 is used as an ideal electric conductor (PEC), the first metal column 41 is used as a magnetic conductor (AMC), the air gap layer is arranged between the upper layer and the lower layer, electromagnetic wave energy is transmitted from the electromagnetic wave transmission structure 34, coupled to the radiation patch 8 after passing through the aperture structure 22, and radiated to the free space. Figure 19 and Figure 20 The gap waveguide in the electromagnetic wave radiation system 1 can effectively avoid the problem of electromagnetic wave crosstalk on adjacent electromagnetic wave transmission structures 34 because the upper and lower closed metal plates make the electromagnetic wave propagate only inside the shielding unit P, when fed from one of the electromagnetic wave transmission structures 34, the energy is transmitted through the gap waveguide to the radiation patch 8 above it.

[0174] It should be noted that the embodiments of the present disclosure Figure 20 take the waveguide feed network in a 3x3 array as an example, of course, not limited to this, there can be less than 9 waveguide feed networks, and more waveguide feed networks can also be provided.

[0175] In a possible implementation, in order to solve the problem that it is difficult to punch holes in the glass substrate to solve the electromagnetic crosstalk between the glass substrate device and the circuit, the embodiments of the present disclosure provide another electromagnetic wave radiation system, as shown in Figure 21 and Figure 22 , Figure 21 a three-dimensional structure schematic diagram of another electromagnetic wave radiation system provided by the embodiments of the present disclosure, Figure 22 is Figure 21 a corresponding explosion schematic diagram, the electromagnetic wave radiation system comprises:

[0176] a first metal substrate 1;

[0177] a second metal substrate 2, arranged opposite to the first metal substrate 1;

[0178] an electromagnetic wave transmission component 3, arranged between the first metal substrate 1 and the second metal substrate 2; the electromagnetic wave transmission component 3 comprises: a first glass substrate 31 and a second glass substrate 32 arranged opposite to each other, a liquid crystal layer 33 arranged between the first glass substrate 31 and the second glass substrate 32, and a plurality of electromagnetic wave transmission structures 34 arranged on a side of the first glass substrate 31 facing the liquid crystal layer 33; wherein the first glass substrate 31 is close to the first metal substrate 1;

[0179] The electromagnetic shielding structure 4 is arranged between the electromagnetic wave transmission assembly 3 and the first metal substrate 1, and the electromagnetic shielding structure 4 includes a plurality of shielding units P surrounded by a plurality of first metal columns 41. The shielding units P are arranged in one-to-one correspondence with the electromagnetic wave transmission structures 34, and the orthographic projection of the electromagnetic wave transmission structures 34 on the first metal substrate 1 is located within the orthographic projection range of the shielding units P on the first metal substrate 1.

[0180] The electromagnetic wave radiation system provided by the embodiments of the present disclosure can form a periodic structure with a stopband characteristic through the plurality of shielding units surrounded by the plurality of first metal columns arranged between the electromagnetic wave transmission structure and the first metal substrate. The energy of the electromagnetic wave is well confined in the shielding units and transmitted to the electromagnetic wave transmission structure, so that the electromagnetic shielding structure can effectively solve the problem of electromagnetic energy crosstalk between different electromagnetic wave transmission structures in the electromagnetic wave transmission structure. By arranging the electromagnetic shielding structure, the present disclosure avoids using the extremely difficult glass punching process to solve the problem of electromagnetic energy crosstalk, thereby effectively improving the overall working performance of the electromagnetic wave radiation system.

[0181] In specific implementation, in the electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 21 and Figure 22 , the electromagnetic shielding structure 4 further includes:

[0182] The third dielectric substrate 10 is arranged between the first metal substrate 1 and the electromagnetic wave transmission assembly 3, and the third dielectric substrate 10 includes a plurality of second cavities 101 arranged in one-to-one correspondence with the electromagnetic wave transmission structures 34. The plurality of first metal columns 41 are spaced and embedded in the third dielectric substrate 10 outside the plurality of second cavities 101;

[0183] The electromagnetic wave radiation system further includes:

[0184] The fourth dielectric substrate 7 is arranged on the side of the second metal substrate 2 away from the first metal substrate 1.

[0185] The plurality of radiation patches 8 are arranged on the side of the fourth dielectric substrate 7 away from the first metal substrate 1.

[0186] The plurality of aperture structures 22 are arranged on the second metal substrate, and the aperture structures 22 are arranged in one-to-one correspondence with the electromagnetic wave transmission structures 34.

[0187] In specific implementation, in the electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 21 and Figure 22 , the shape of the radiation patch 8 is a quadrilateral; of course, the shape of the radiation patch 8 can also be a hexagon or other shapes, and the embodiments of the present disclosure do not limit this.

[0188] In a specific implementation, in the electromagnetic wave radiation system provided by the embodiment of the present disclosure, as shown in Figure 21 and Figure 22 , the shape of the opening structure 22 is arc-shaped, the electromagnetic wave transmission structure 34 includes two strip lines 341 with intersecting extension directions, and the number of the opening structure 22 corresponding to each electromagnetic wave transmission structure 34 is the same as the number of the strip lines 341 included in each electromagnetic wave transmission structure 34.

[0189] In a specific implementation, in the electromagnetic wave radiation system provided by the embodiment of the present disclosure, as shown in Figure 21 and Figure 22 , the electromagnetic shielding structure further includes:

[0190] A plurality of metal sheets 20 are arranged at intervals on the side of the third dielectric substrate 10 facing the electromagnetic wave transmission assembly 3 and are in one-to-one correspondence with the first metal columns 41. The first metal column 41 and the metal sheet 20 above it form a mushroom-shaped metal structure, which is usually used as its electromagnetic bandgap structure (EBG).

[0191] In a specific implementation, in the electromagnetic wave radiation system provided by the embodiment of the present disclosure, as shown in Figure 21 and Figure 22 , at least two circles of first metal columns 41 are arranged around each shielding unit P. The embodiment of the present disclosure takes two circles of first metal columns 41 arranged around each shielding unit P as an example, and of course more circles can also be arranged, which is not limited by the present disclosure.

[0192] Specifically, Figure 21 and Figure 22 , the electromagnetic wave transmission assembly 3 acts as a waveguide port-fed network, electromagnetic wave energy is fed from the electromagnetic wave transmission structure 34, the first metal substrate 1, the third dielectric substrate 10, the first metal column 41 and the second metal substrate 2 form an electromagnetic bandgap structure (EBG), and the EBG has the same stopband characteristics as the above-mentioned gap waveguide, which can shield electromagnetic crosstalk in the electromagnetic wave transmission assembly 3. Electromagnetic wave energy is transmitted from the electromagnetic wave transmission structure 34, coupled to the radiation patch 8 after passing through the opening structure 22, and radiated to the free space.

[0193] It should be noted that the embodiment of the present disclosure Figure 22 takes a 3x3 array of waveguide-fed networks as an example, but is not limited thereto, and can be less than 9 waveguide-fed networks, or more waveguide-fed networks can be provided.

[0194] In a possible implementation, in order to solve the problem that it is difficult to punch holes in the glass substrate to solve the electromagnetic crosstalk between the glass substrate and the circuit, the embodiment of the present disclosure provides another electromagnetic wave radiation system, as shown in Figure 23 and Figure 24 , Figure 23 A three-dimensional structural schematic diagram of another electromagnetic wave radiation system provided by an embodiment of the present disclosure is shown in FIG. 3, Figure 24 A corresponding explosion schematic diagram is shown in FIG. 4. Figure 23 The electromagnetic wave radiation system includes:

[0195] A first metal substrate 1;

[0196] A second metal substrate 2 is arranged opposite to the first metal substrate 1;

[0197] An electromagnetic wave transmission assembly 3 is arranged between the first metal substrate 1 and the second metal substrate 2. The electromagnetic wave transmission assembly 3 includes: a first glass substrate 31 and a second glass substrate 32 arranged opposite to each other, a liquid crystal layer 33 arranged between the first glass substrate 31 and the second glass substrate 32, and a plurality of electromagnetic wave transmission structures 34 arranged on a side of the first glass substrate 31 facing the liquid crystal layer 33. The first glass substrate 31 is close to the first metal substrate 1.

[0198] An electromagnetic shielding structure 4 is arranged between the electromagnetic wave transmission assembly 3 and the first metal substrate 1. The electromagnetic shielding structure 4 includes a plurality of shielding units P surrounded by a plurality of first metal columns 41. The shielding units P are arranged one by one corresponding to the electromagnetic wave transmission structures 34, and the orthographic projection of the electromagnetic wave transmission structure 34 on the first metal substrate 1 is located within the orthographic projection range of the shielding unit P on the first metal substrate 1.

[0199] The electromagnetic wave radiation system provided by the embodiment of the present disclosure can form a periodic structure with a stopband characteristic through the plurality of shielding units surrounded by the plurality of first metal columns arranged between the electromagnetic wave transmission structure and the first metal substrate. The energy of the electromagnetic wave is well confined in the shielding unit and transmitted to the electromagnetic wave transmission structure. Therefore, the electromagnetic shielding structure can effectively solve the problem of electromagnetic energy crosstalk between different electromagnetic wave transmission structures in the electromagnetic wave transmission structure. By arranging the electromagnetic shielding structure, the present disclosure avoids using the glass punching process with extremely high processing difficulty to solve the problem of electromagnetic energy crosstalk. Therefore, the present disclosure can effectively improve the overall working performance of the electromagnetic wave radiation system.

[0200] In specific implementation, in the electromagnetic wave radiation system provided by the embodiment of the present disclosure, as shown in FIG. 5 and FIG. 6, Figure 23 and Figure 24 The electromagnetic shielding structure 4 further includes:

[0201] A third dielectric substrate 10 is arranged between the first metal substrate 1 and the electromagnetic wave transmission assembly 3. The third dielectric substrate 10 includes a plurality of second cavities 101 arranged one by one corresponding to the electromagnetic wave transmission structures 34. The plurality of first metal columns 41 are spaced and embedded in the third dielectric substrate 10 outside the periphery of the plurality of second cavities 101.

[0202] The electromagnetic wave radiation system further comprises:

[0203] A fourth dielectric substrate 7 is arranged on the side of the second metal substrate 2 away from the first metal substrate 1;

[0204] A plurality of radiation patches 8 are arranged on the side of the fourth dielectric substrate 7 away from the first metal substrate 1;

[0205] A plurality of aperture structures 22 are arranged on the second metal substrate, and the aperture structures 22 are arranged in one-to-one correspondence with the electromagnetic wave transmission structures 34.

[0206] In specific implementation, in the above electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 23 and Figure 24 , the shape of the radiation patch 8 is a hexagon; of course, the shape of the radiation patch 8 can also be a quadrilateral or other shapes, which are not limited by the embodiments of the present disclosure.

[0207] In specific implementation, in the above electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 23 and Figure 24 , the electromagnetic shielding structure further comprises:

[0208] A plurality of metal sheets 20 are arranged in a spaced manner on the side of the third dielectric substrate 10 facing the electromagnetic wave transmission assembly 3, and are arranged in one-to-one correspondence with the first metal columns 41. The first metal column 41 and the metal sheet 20 above it form a mushroom-shaped metal structure, which is usually used as an electromagnetic bandgap structure (EBG).

[0209] In specific implementation, in the above electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 23 and Figure 24 , the shape of the aperture structure 22 is arc-shaped, the electromagnetic wave transmission structure 34 comprises a strip line 341, and the number of the aperture structure 22 corresponding to each electromagnetic wave transmission structure 34 is the same as the number of the strip line 341 included in each electromagnetic wave transmission structure 34.

[0210] In specific implementation, in the above electromagnetic wave radiation system provided by the embodiments of the present disclosure, as shown in Figure 23 and Figure 24 , at least two rings of first metal columns 41 are arranged around each shielding unit P. The embodiments of the present disclosure take an example of two rings of first metal columns 41 arranged around each shielding unit P, and of course, more rings can also be arranged, which are not limited by the present disclosure.

[0211] Specifically, Figure 23 and Figure 24The electromagnetic wave transmission component 3 serves as the waveguide feed network. Electromagnetic wave energy is fed in from the electromagnetic wave transmission structure 34. The first metal substrate 1, the third dielectric substrate 10, the first metal pillar 41, and the second metal substrate 2 constitute an electromagnetic bandgap structure (EBG). The EBG has the same stopband characteristics as the aforementioned gap waveguide and can shield electromagnetic crosstalk in the electromagnetic wave transmission component 3. Electromagnetic wave energy is transmitted from the electromagnetic wave transmission structure 34, coupled to the radiating patch 8 after passing through the opening structure 22, and radiated into free space.

[0212] It should be noted that the embodiments disclosed herein... Figure 24 Taking a 3×3 array of waveguide feed networks as an example, it is not limited to this. There can be fewer than 9 waveguide feed networks, or even more waveguide feed networks.

[0213] In specific implementations, the structures for electromagnetic shielding proposed in this disclosure are gap waveguides and electromagnetic bandgap structures, but are not limited to these two structures. Any periodic structure with band-stop characteristics is protected by the embodiments of this disclosure, and will not be listed here.

[0214] by Figure 1 and Figure 2 Taking the electromagnetic wave radiation system shown as an example, this disclosure describes the electromagnetic waves in the Ka band. Figure 1 The electromagnetic crosstalk transmission in the electromagnetic wave radiation system shown was verified. Specifically, as... Figure 7 As shown, Figure 7 To excite the center waveguide port of the 3×3 waveguide port feed network, Figure 7 No settings are provided. Figure 1 The diagram shown illustrates the electric field distribution in the electromagnetic wave transmission component 3 within the gap waveguide structure. It can be observed that not all electromagnetic waves are transmitted to the electromagnetic wave transmission structure 34 of the central unit; instead, crosstalk occurs within the electromagnetic wave transmission component 3. Figure 8 for Figure 7 The corresponding simulation parameter diagram shows that curve A represents the electromagnetic wave energy reflected back from the electromagnetic wave transmission structure 34, and curve B represents the electromagnetic wave energy radiated from the electromagnetic wave transmission structure 34, which also proves the impact of electromagnetic crosstalk on transmission performance. Figure 9 To excite the center waveguide port of the 3×3 waveguide port feed network, Figure 9 For setting Figure 1 The electric field distribution diagram of the electromagnetic wave transmission component 3 after the gap waveguide structure is shown. It can be seen that the energy transmitted through the central waveguide is well confined in the central unit and transmitted to the central electromagnetic wave transmission structure 34. There is almost no electric field in the electromagnetic wave transmission component 3 inside the other units, which proves that the gap waveguide structure effectively shields against electromagnetic crosstalk in the electromagnetic wave transmission component 3. Figure 10 for Figure 9The corresponding simulation parameter diagram shows that the transmission performance of the waveguide port has been significantly improved.

[0215] In summary, the electromagnetic wave radiation system provided by the embodiments of this disclosure has at least the following advantages:

[0216] 1. Avoid the extremely difficult glass drilling process to achieve effective shielding of electromagnetic crosstalk in glass-based electromagnetic wave transmission structures.

[0217] 2. It can effectively improve the overall performance of electromagnetic wave radiation systems.

[0218] 3. The electromagnetic wave radiation system has a compact structure and high integration.

[0219] 4. Electromagnetic wave radiation systems have low processing precision and can be mass-produced.

[0220] Based on the same inventive concept, embodiments of this disclosure also provide a communication device, including any of the electromagnetic wave radiation systems described above. Other essential components of this communication device are those that should be understood by those skilled in the art, and will not be elaborated upon here, nor should they be construed as limiting this disclosure. Implementation of this communication device can refer to the embodiments of the electromagnetic wave radiation system described above, with repeated details omitted.

[0221] This disclosure provides an electromagnetic wave radiation system and communication device. By setting multiple shielding units, each surrounded by multiple first metal pillars, between the electromagnetic wave transmission structure and the first metal substrate, the multiple shielding units can form a periodic structure with stopband characteristics. This allows the energy of the electromagnetic wave to be well confined within the shielding units and transmitted to the electromagnetic wave transmission structure. Therefore, the electromagnetic shielding structure can effectively solve the problem of electromagnetic energy crosstalk between different electromagnetic wave transmission structures. Furthermore, by setting the electromagnetic shielding structure, this disclosure avoids the use of glass drilling technology, which is extremely difficult to process, to solve the problem of electromagnetic energy crosstalk. Therefore, this disclosure can effectively improve the overall working performance of the electromagnetic wave radiation system.

[0222] Although preferred embodiments of this disclosure have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this disclosure.

[0223] Obviously, those skilled in the art can make various modifications and variations to the embodiments of this disclosure without departing from the spirit and scope of the embodiments of this disclosure. Therefore, if these modifications and variations to the embodiments of this disclosure fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include these modifications and variations.

Claims

1. An electromagnetic wave radiation system, wherein, The application relates to an electromagnetic wave transmission device. The device comprises: a first metal substrate; a second metal substrate, which is arranged opposite to the first metal substrate; an electromagnetic wave transmission assembly, which is arranged between the first metal substrate and the second metal substrate; the electromagnetic wave transmission assembly comprises: a first glass substrate and a second glass substrate arranged opposite to each other, a liquid crystal layer arranged between the first glass substrate and the second glass substrate, and a plurality of electromagnetic wave transmission structures arranged on a side of the first glass substrate facing the liquid crystal layer; wherein the first glass substrate is close to the first metal substrate; 2. The electromagnetic wave radiation system of claim 1, wherein, an electromagnetic shielding structure, which is arranged between the electromagnetic wave transmission assembly and the first metal substrate, and comprises a plurality of shielding units surrounded by a plurality of first metal columns, the shielding units are arranged one by one corresponding to the electromagnetic wave transmission structures, and the orthographic projection of the electromagnetic wave transmission structure on the first metal substrate is located in the orthographic projection range of the shielding unit on the first metal substrate. The electromagnetic shielding structure further comprises: a first dielectric substrate, which is arranged between the first metal substrate and the electromagnetic wave transmission assembly, and comprises a plurality of first cavities arranged one by one corresponding to the electromagnetic wave transmission structures, and the plurality of first metal columns are spaced and embedded in the first dielectric substrate outside the periphery of the plurality of first cavities; a second dielectric substrate, which is arranged between the first dielectric substrate and the electromagnetic wave transmission assembly; 3. The electromagnetic wave radiation system of claim 2, wherein, a plurality of second metal columns, which are spaced and embedded in the second dielectric substrate and arranged one by one corresponding to the first metal columns. Further comprising: a plurality of waveguide structures, which are arranged on a side of the first metal substrate facing the second metal substrate, the waveguide structures are arranged one by one corresponding to the first cavities, the orthographic projection of the first cavities on the first metal substrate coincides with the orthographic projection of the waveguide structures on the first metal substrate, and the first dielectric substrate is embedded outside the plurality of waveguide structures through the first cavities; a first ridge-shaped hole, which penetrates the waveguide structure and the first metal substrate below the waveguide structure; 4. The electromagnetic wave radiation system of claim 1, wherein, a plurality of first metal layers, which are arranged on a side of the second dielectric substrate facing the second metal substrate and arranged one by one corresponding to the waveguide structures, and the first metal layers have second ridge-shaped holes arranged one by one corresponding to the first ridge-shaped holes. Further comprising:

5. The electromagnetic wave radiation system of claim 4, wherein, a plurality of waveguide structures, which are arranged on a side of the first metal substrate facing the second metal substrate, the waveguide structures are arranged one by one corresponding to the electromagnetic wave transmission structures, and the plurality of waveguide structures are surrounded by the plurality of first metal columns. Further comprising: a first ridge-shaped hole, which penetrates the waveguide structure and the first metal substrate below the waveguide structure; a second dielectric substrate, which is arranged between the waveguide structure and the electromagnetic wave transmission assembly; 6. The electromagnetic wave radiation system of claim 5, wherein, a plurality of first metal layers, which are arranged on a side of the second dielectric substrate facing the second metal substrate and arranged one by one corresponding to the waveguide structures, and the first metal layers have second ridge-shaped holes arranged corresponding to the first ridge-shaped holes. The size of the first metal layer is the same as the size of the waveguide structure.

7. The electromagnetic wave radiation system of claim 5, wherein, The first ridge-shaped hole on the first metal substrate is in a mutual overlap with the second ridge-shaped hole on the first metal substrate.

8. The electromagnetic wave radiation system according to any one of claims 3, 5-7, wherein, The electromagnetic wave transmission structure is a patch antenna, and the second metal substrate comprises a plurality of hollow structures arranged one-to-one with the patch antenna.

9. The electromagnetic wave radiation system of claim 1, wherein, The electromagnetic shielding structure further comprises: A third dielectric substrate is arranged between the first metal substrate and the electromagnetic wave transmission assembly, and the third dielectric substrate comprises a plurality of second cavities arranged one-to-one with the electromagnetic wave transmission structure, and the plurality of first metal columns are spaced and embedded in the third dielectric substrate outside the periphery of the plurality of second cavities.

10. The electromagnetic wave radiation system of claim 9, wherein, The electromagnetic shielding structure further comprises: A plurality of metal sheets are arranged on the side of the third dielectric substrate facing the electromagnetic wave transmission assembly, and are arranged one-to-one in contact with the first metal columns.

11. The electromagnetic wave radiation system according to any one of claims 4, 9, 10, wherein, Further comprising: A fourth dielectric substrate is arranged on the side of the second metal substrate away from the first metal substrate. A plurality of radiation patches are arranged on the side of the fourth dielectric substrate away from the first metal substrate. A plurality of aperture structures are arranged on the second metal substrate, and the aperture structures are arranged one-to-one with the electromagnetic wave transmission structure.

12. The electromagnetic wave radiation system of claim 11, wherein, The shape of the radiation patch comprises a quadrilateral or a hexagon.

13. The electromagnetic wave radiation system of claim 11, wherein, The shape of the aperture structure is arc-shaped.

14. The electromagnetic wave radiation system of claim 11, wherein, The electromagnetic wave transmission structure comprises two strip lines with intersecting extension directions.

15. The electromagnetic wave radiation system of claim 14, wherein, The number of aperture structures corresponding to each electromagnetic wave transmission structure is the same as the number of strip lines included in each electromagnetic wave transmission structure.

16. The electromagnetic wave radiation system of claim 3 or 5, wherein, The electromagnetic wave transmission structure comprises a strip line.

17. The electromagnetic wave radiation system of claim 16, wherein, The strip line comprises a first part and a second part connected in the same direction, and the width of the first part and the width of the second part are different.

18. The electromagnetic wave radiation system of claim 17, wherein, The connection between the first part and the second part is in a partial overlap with the first ridge-shaped hole on the first metal substrate.

19. The electromagnetic wave radiation system according to any one of claims 1-7, 9-10, 12-15, 17-18, wherein, At least two circles of the first metal columns are arranged outside each shielding unit.

20. A communication device, wherein, An electromagnetic wave radiation system comprising any one of claims 1-19.

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