Antenna device

Abstract

The utility model provides an antenna device. The antenna device comprises a first transmission channel; the second transmission channel is communicated with the first transmission channel through the first through hole; the waveguide channel is communicated with the second transmission channel through the second through hole; wherein the antenna device is provided with a first side and a second side which are opposite to each other, the first through hole and the second through hole are both located at positions close to the first side, and the distance between the second through hole and the first side is smaller than that between the first through hole and the first side. The antenna has the advantages that the interference of electromagnetic wave reflection on antenna signals is reduced; a traditional terminator does not need to be used, and the antenna is suitable for a miniaturized antenna circuit.

Description

Technical Field

[0001] The present application relates to the field of antennas, and in particular, to an antenna device. Background Art

[0002] Terminators are usually designed at the end of the circuit to absorb energy and reduce reflection. With the increase of antenna operating frequency and the miniaturization of circuits, the size of antenna devices is getting smaller and smaller, making it difficult to install the terminator. Therefore, how to improve the operating bandwidth and integration of the terminator has become a problem that needs to be solved.

[0003] Figure 1 A schematic diagram of an antenna device in the prior art is shown. Figure 2 Shown as Figure 1 FIG. 1 is a schematic diagram of electromagnetic wave propagation in an antenna device of the prior art. Figure 1 As shown, the antenna device of the prior art includes a first transmission channel 901 and a second transmission channel 902 adjacent to each other, the first transmission channel 901 and the second transmission channel 902 are connected through a first through hole 904, and a signal source 903 is arranged at the entrance of the first transmission channel 901. Figure 2 As shown, the electromagnetic wave emitted by the signal source 903 enters the first transmission channel 901 and enters the second transmission channel 902 through the first through hole 904. The electromagnetic wave is reflected at the first through hole 904. Since the first through hole 904 is close to the entrance side of the second transmission channel 902, the reflected electromagnetic wave propagates to the entrance of the second transmission channel 902, causing distortion of the antenna signal.

[0004] In summary, the art needs to provide an antenna device that can overcome the defects of the prior art. Utility Model Content

[0005] The present application provides an antenna device, which can solve the problems of the prior art. The purpose of the present application is achieved through the following technical solutions.

[0006] One embodiment of the present application provides an antenna device, comprising: a first transmission channel; a second transmission channel, the second transmission channel is connected to the first transmission channel through a first through hole; and a waveguide channel, the waveguide channel is connected to the second transmission channel through a second through hole; wherein the antenna device has a first side and a second side opposite to each other, the first through hole and the second through hole are both located close to the first side, and the distance between the second through hole and the first side is smaller than the distance between the first through hole and the first side.

[0007] In some optional embodiments, according to the antenna device provided by one of the above embodiments of the present application, the antenna device further includes a signal source, the signal source is arranged at the entrance of the first transmission channel, and the signal emitted by the signal source enters the second transmission channel through the first through hole.

[0008] In some optional embodiments, an antenna device is provided according to one of the above embodiments of the present application, wherein the antenna device also includes a first conductor layer, the first conductor layer is arranged above the first transmission channel and the second transmission channel, the waveguide channel is arranged above the first conductor layer, and the second through hole is arranged on the first conductor layer.

[0009] In some optional embodiments, according to the antenna device provided by one of the above embodiments of the present application, the waveguide channel is located above the second transmission channel and the first transmission channel.

[0010] In some optional embodiments, in the antenna device provided according to one of the above embodiments of the present application, an extension direction of the waveguide channel is at least partially parallel to an extension direction of the second transmission channel.

[0011] In some optional embodiments, in the antenna device provided according to one of the above embodiments of the present application, an extension direction of the waveguide channel is different from an extension direction of the second transmission channel.

[0012] In some optional embodiments, according to the antenna device provided by one of the above embodiments of the present application, the waveguide channel includes a first straight portion, a second straight portion and a bending portion, and the first straight portion and the second straight portion are connected through the bending portion.

[0013] In some optional embodiments, according to the antenna device provided by one of the above embodiments of the present application, the propagation direction of the electromagnetic wave guided by the waveguide channel is different from the direction in which the electromagnetic wave propagates in the first transmission channel and the second transmission channel.

[0014] In some optional embodiments, according to the antenna device provided by one of the above embodiments of the present application, the antenna device further includes a partition wall, the partition wall is arranged between the first transmission channel and the second transmission channel, and the first through hole is arranged on the partition wall.

[0015] In some optional embodiments, according to the antenna device provided by one of the embodiments above of the present application, the first transmission channel connects the first side and the second side, and the second transmission channel connects the first side and the second side.

[0016] In some optional embodiments, according to the antenna device provided by one of the embodiments of the present application, the first straight line portion and the second straight line portion are parallel.

[0017] In some optional embodiments, according to the antenna device provided by one of the embodiments of the present application, the first straight portion and the second straight portion are also parallel to the second transmission channel.

[0018] The advantages of the antenna device according to the embodiment of the present application are: reducing the interference of electromagnetic wave reflection on the antenna signal; no need to use a traditional terminator, and being suitable for miniaturized antenna circuits. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objectives and advantages of the present application will become more apparent through the detailed description of non-limiting embodiments of the present application with reference to the following drawings.

[0020] Figure 1 A schematic diagram of an antenna device in the prior art is shown;

[0021] Figure 2 Shown as Figure 1 A schematic diagram of electromagnetic wave propagation in an antenna device of the prior art is shown;

[0022] Figure 3 A schematic side view of an antenna device according to an embodiment of the present application is shown;

[0023] Figure 4 Shown as Figure 3 A schematic cross-sectional top view of a position marked as B in an antenna device according to an embodiment of the present application is shown;

[0024] Figure 5 Shown as Figure 3 A schematic cross-sectional top view of a position marked as C in an antenna device according to an embodiment of the present application is shown;

[0025] Figure 6 Shown as Figure 3 FIG. 1 is a schematic diagram of a second through hole of an antenna device according to an embodiment of the present application.

[0026] Figure 7 It shows that the electromagnetic wave signal Figure 3 A schematic diagram of intensity variation in a waveguide channel of an antenna device according to an embodiment of the present application is shown.

[0027] Figure 8 shows a side schematic diagram of an antenna device according to a second embodiment of the present application;

[0028] Fig. 9 Shown as Figure 8 A schematic cross-sectional top view of a position marked as D in an antenna device according to a second embodiment of the present application is shown;

[0029] Fig.10 Shown as Figure 8 A schematic cross-sectional top view of a position marked as E in an antenna device according to a second embodiment of the present application is shown;

[0030] Fig.11 shows a side schematic diagram of an antenna device according to a third embodiment of the present application;

[0031] Fig.12 Shown as Figure 8 The schematic cross-sectional top view of a position marked as F in the antenna device according to the third embodiment of the present application is shown;

[0032] Fig.13 Shown as Figure 8 The schematic cross-sectional top view of the position marked as G in the antenna device according to the third embodiment of the present application is shown.

[0033] Reference numerals and component names: 1-first transmission channel, 2-second transmission channel, 3-first through hole, 4-second through hole, 5-signal source, 6-waveguide channel, 7-partition wall, 8-third transmission channel, 9-fourth transmission channel, 10-third through hole, 11-fourth through hole, 12-fifth through hole, 13-sixth through hole, 61-first straight portion, 62-second straight portion, 63-bending portion, 101-first side, 102-second side, L1-first conductor layer, L2-second conductor layer, L3 third conductor layer, L4-fourth conductor layer, 901-first transmission channel, 902-second transmission channel, 903-signal source, 904-first through hole. DETAILED DESCRIPTION

[0034] The specific implementation methods of the present application are described below in conjunction with the accompanying drawings and examples. Through the contents recorded in this specification, those skilled in the art can clearly and completely understand the technical solutions, technical problems solved, and technical effects produced by the present application. It is understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. In addition, for ease of description, only the parts related to the present application are shown in the accompanying drawings.

[0035] It should be readily understood that the meanings of “on,” “over,” and “over” in this application should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also means “on something” including the presence of intermediate components or layers therebetween.

[0036] Additionally, for ease of description, spatially relative terms such as "below," "beneath," "lower," "above," "upper," etc. may be used herein to describe the relationship of one element or component to another element or component illustrated in the drawings. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0037] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of the specification are only used to match the contents recorded in the specification for the understanding and reading of those skilled in the art, and are not used to limit the limiting conditions for the implementation of the present application, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed in the present application. At the same time, the terms such as "on", "first", "second" and "one" quoted in this specification are only for the convenience of narration, and are not used to limit the scope of the implementation of the present application. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present application without substantially changing the technical content.

[0038] The term "layer" as used herein refers to a material portion including an area with a certain thickness. The layer can extend over the entire lower or upper structure, or can have a degree less than the range of the lower or upper structure. In addition, the layer can be a region of a homogeneous or inhomogeneous continuous structure, and its thickness is less than the thickness of the continuous structure. For example, the layer can be located between the top surface and the bottom surface of the continuous structure or between any pair of horizontal planes therebetween. The layer can extend horizontally, vertically and / or along a tapered surface. A substrate can be a layer, one or more layers can be included therein, and / or one or more layers can be present thereon, above and / or below. A layer can include multiple layers. For example, a semiconductor layer can include one or more doped or undoped semiconductor layers, and can have the same or different materials.

[0039] In addition, the embodiments and features in the embodiments of the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] Figure 3 A schematic side view of an antenna device according to an embodiment of the present application is shown. Figure 4 Shown as Figure 3 The figure shows a schematic cross-sectional top view of a position marked as B in an antenna device according to an embodiment of the present application. Figure 5 Shown as Figure 3 The figure shows a schematic cross-sectional top view of a position marked as C in an antenna device according to an embodiment of the present application. Figure 6 Shown as Figure 3 FIG. 1 is a schematic diagram of a second through hole of an antenna device according to an embodiment of the present application. Figures 3 to 6 As shown, the antenna device includes: a first transmission channel 1; a second transmission channel 2, which is connected to the first transmission channel 1 through a first through hole 3; a waveguide channel 6, which is connected to the second transmission channel 2 through a second through hole 4; wherein the antenna device has a first side 101 and a second side 102 opposite to each other, the first through hole 3 and the second through hole 4 are both located close to the first side 101, and the distance between the second through hole 4 and the first side 101 is less than the distance between the first through hole 3 and the first side 101.

[0041] In some optional implementations, according to the antenna device provided by one of the above implementations of the present application, Figure 4 The rectangular portion marked as 4 is the second through hole 4. Figure 3 The projection on the cross section marked as B in the antenna device according to one embodiment of the present application is shown.

[0042] In some optional embodiments, an antenna device is provided according to the above-mentioned one embodiment of the present application, wherein the antenna device also includes a first conductor layer L1, a second conductor layer L2, a third conductor layer L3 and a fourth conductor layer L4, the fourth conductor layer L4, the third conductor layer L3, the first conductor layer L1 and the second conductor layer L2 are arranged in sequence from top to bottom, the first transmission channel 1 and the second transmission channel 2 are located between the first conductor layer L1 and the second conductor layer L2, the waveguide channel 6 is located between the second conductor layer L2 and the third conductor layer L3, and the second through hole 4 is located on the first conductor layer L1.

[0043] In some optional embodiments, in the antenna device provided according to one embodiment of the present application, the first conductor layer L1 , the second conductor layer L2 , the third conductor layer L3 and the fourth conductor layer L4 are made of conductive materials.

[0044] In some optional implementations, the antenna device provided according to one of the above implementations of the present application is as follows: Figure 4As shown, there are four channels between the first conductor layer L1 and the second conductor layer L2, wherein the first transmission channel 1, the second transmission channel 2, the third transmission channel 8 and the fourth transmission channel 9 are arranged from left to right, the second channel 2 and the third transmission channel 8 are connected through one or more third through holes 10, the third transmission channel 8 and the fourth transmission channel 9 are connected through one or more fourth through holes 11, the first transmission channel 1 and the second transmission channel 2 are also connected through a fifth through hole 12, and the distance between the fifth through hole 12 and the first side 101 is greater than the distance between the first through hole 3 and the first side 101.

[0045] In some optional embodiments, according to the antenna device provided by one of the above embodiments of the present application, the entrances of the first transmission channel 1, the second transmission channel 2, the third transmission channel 8 and the fourth transmission channel 9 are arranged at positions close to the first side 101, and the first transmission channel 1, the second transmission channel 2, the third transmission channel 8 and the fourth transmission channel 9 are arranged at positions close to the second side 102.

[0046] In some optional embodiments, an antenna device is provided according to one of the above embodiments of the present application, wherein the antenna device also includes a signal source 5, the signal source 5 is arranged at the entrance of the first transmission channel 1, and the signal emitted by the signal source 5 enters the second transmission channel 2 through the first through hole 3.

[0047] In some optional embodiments, an antenna device is provided according to one of the above embodiments of the present application, wherein the antenna device also includes a first conductor layer L1, the first conductor layer L1 is arranged above the first transmission channel 1 and the second transmission channel 2, the waveguide channel 6 is arranged above the first conductor layer L1, and the second through hole 4 is arranged on the first conductor layer L1.

[0048] In some optional embodiments, according to the antenna device provided by one of the above embodiments of the present application, the waveguide channel 6 is located above the second transmission channel 2 and the first transmission channel 1 .

[0049] In some optional embodiments, in the antenna device provided according to one of the above embodiments of the present application, an extension direction of the waveguide channel 6 is at least partially parallel to an extension direction of the second transmission channel 2 .

[0050] In some optional embodiments, according to the antenna device provided by one of the above embodiments of the present application, an extension direction of the waveguide channel 6 is different from an extension direction of the second transmission channel 2 .

[0051] In some optional embodiments, an antenna device is provided according to the above-mentioned one embodiment of the present application, wherein the waveguide channel 6 includes a first straight portion 61, a second straight portion 62 and a bending portion 63, the first straight portion 61 and the second straight portion 62 are connected through the bending portion 63, the first straight portion 61 is connected to the second transmission channel 2 through the second through hole 4, the first straight portion 61 and the second straight portion 62 are parallel, one end of the first straight portion 61 is close to the first side 101 and the other end is close to the second side 102, one end of the second straight portion 62 is close to the first side 101 and the other end is close to the second side 102, and the bending portion 63 is located on the side close to the second side 102.

[0052] In some optional embodiments, an antenna device is provided according to the above-mentioned one embodiment of the present application, wherein the waveguide channel 6 guides the propagation direction of the electromagnetic wave to be different from the direction in which the electromagnetic wave propagates in the first transmission channel 1 and the second transmission channel 2, wherein the electromagnetic wave propagates in the first transmission channel 1 and the second transmission channel 2 along the direction from the first side 101 to the second side 102, and after entering the waveguide channel 6 from the second through hole 4, the electromagnetic wave propagates in the order of the first straight portion 61, the bending portion 63, and the second straight portion 62.

[0053] In some optional embodiments, according to the antenna device provided by one of the embodiments of the present application, the first straight portion and the second straight portion are also parallel to the second transmission channel.

[0054] In some optional embodiments, the antenna device is provided according to one of the above embodiments of the present application, wherein the antenna device also includes a partition wall 7, the partition wall 7 is arranged between the first transmission channel 1 and the second transmission channel 2, and the first through hole 3 is arranged on the partition wall 7.

[0055] In some optional embodiments, according to the antenna device provided by one of the above embodiments of the present application, the first transmission channel 1 connects the first side 101 and the second side 102, the second transmission channel 2 connects the first side 101 and the second side 102, the third transmission channel 8 connects the first side 101 and the second side 102, and the fourth transmission channel 9 connects the first side 101 and the second side 102.

[0056] Figure 7 It shows that the electromagnetic wave signal Figure 3 The schematic diagram of the intensity variation in the waveguide channel of the antenna device according to one embodiment of the present application is shown. The electromagnetic wave entering the second transmission channel 2 through the first through hole 3 can enter the waveguide channel 6 through the second through hole 4. Figure 7As shown, the electromagnetic wave enters the waveguide channel 6 from the second through hole 4, and the electromagnetic wave is transmitted in the waveguide channel 6 along the first straight portion 61, the bending portion 63 and the second straight portion 62 and gradually weakens. Since the electromagnetic wave entering the waveguide channel 6 will be weakened and consumed in the waveguide channel 6, the antenna signal distortion caused by the reflection of the electromagnetic wave is reduced.

[0057] Figure 8 A schematic side view of an antenna device according to a second embodiment of the present application is shown. Fig. 9 Shown as Figure 8 The schematic cross-sectional top view of the position marked as D in the antenna device according to the second embodiment of the present application is shown. Fig.10 Shown as Figure 8 FIG. 1 is a schematic cross-sectional top view of a position marked as E in an antenna device according to a second embodiment of the present application. Figure 8-10 As shown, the antenna device includes: a first transmission channel 1; a second transmission channel 2, which is connected to the first transmission channel 1 through a first through hole 3; a waveguide channel 6, which is connected to the second transmission channel 2 through a second through hole 4; wherein the antenna device has a first side 101 and a second side 102 opposite to each other, the first through hole 3 and the second through hole 4 are both located close to the first side 101, and the distance between the second through hole 4 and the first side 101 is less than the distance between the first through hole 3 and the first side 101.

[0058] In some optional embodiments, an antenna device is provided according to the above-mentioned one embodiment of the present application, wherein the antenna device also includes a first conductor layer L1, a second conductor layer L2, a third conductor layer L3 and a fourth conductor layer L4, the fourth conductor layer L4, the third conductor layer L3, the first conductor layer L1 and the second conductor layer L2 are arranged in sequence from top to bottom, the first transmission channel 1 and the second transmission channel 2 are located between the first conductor layer L1 and the second conductor layer L2, the waveguide channel 6 is located between the second conductor layer L2 and the third conductor layer L3, and the second through hole 4 is located on the first conductor layer L1.

[0059] In some optional implementations, the antenna device provided according to one of the above implementations of the present application is as follows: Figure 4 As shown, there are four channels between the first conductor layer L1 and the second conductor layer L2, wherein the second transmission channel 2, the first transmission channel 1, the third transmission channel 8 and the fourth transmission channel 9 are arranged from left to right, the first transmission channel 1 and the third transmission channel 8 are connected through one or more sixth through holes 13, the third transmission channel 8 and the fourth transmission channel 9 are connected through one or more fourth through holes 11, the first transmission channel 1 and the second transmission channel 2 are also connected through a fifth through hole 12, and the distance between the fifth through hole 12 and the first side 101 is greater than the distance between the first through hole 3 and the first side 101.

[0060] In some optional embodiments, an antenna device is provided according to one of the above embodiments of the present application, wherein the antenna device also includes a signal source 5, the signal source 5 is arranged at the entrance of the first transmission channel 1, and the signal emitted by the signal source 5 enters the second transmission channel 2 through the first through hole 3.

[0061] In some optional implementations, according to the antenna device provided by one of the above implementations of the present application, Fig.10 The rectangular portion marked as 4 is the second through hole 4. Figure 8 The projection on the cross section marked as E in the antenna device according to the second embodiment of the present application is shown.

[0062] Fig.11 A schematic side view of an antenna device according to a third embodiment of the present application is shown. Fig.12 Shown as Figure 8 The schematic cross-sectional top view of the position marked as F in the antenna device according to the third embodiment of the present application is shown. Fig.13 Shown as Figure 8 FIG. 1 is a schematic cross-sectional top view of a position marked as G in an antenna device according to a third embodiment of the present application. Figure 11-13 As shown, the antenna device includes: a first transmission channel 1; a second transmission channel 2, which is connected to the first transmission channel 1 through a first through hole 3; a waveguide channel 6, which is connected to the second transmission channel 2 through a second through hole 4; wherein the antenna device has a first side 101 and a second side 102 opposite to each other, the first through hole 3 and the second through hole 4 are both located close to the first side 101, and the distance between the second through hole 4 and the first side 101 is less than the distance between the first through hole 3 and the first side 101.

[0063] In some optional embodiments, an antenna device is provided according to the above-mentioned one embodiment of the present application, wherein the antenna device also includes a first conductor layer L1, a second conductor layer L2, a third conductor layer L3 and a fourth conductor layer L4, the fourth conductor layer L4, the third conductor layer L3, the first conductor layer L1 and the second conductor layer L2 are arranged in sequence from top to bottom, the first transmission channel 1 and the second transmission channel 2 are located between the first conductor layer L1 and the second conductor layer L2, the waveguide channel 6 is located between the second conductor layer L2 and the third conductor layer L3, and the second through hole 4 is located on the first conductor layer L1.

[0064] In some optional implementations, the antenna device provided according to one of the above implementations of the present application is as follows: Figure 4As shown, there are four channels between the first conductor layer L1 and the second conductor layer L2, wherein the third transmission channel 8, the fourth transmission channel 9, the first transmission channel 1 and the second transmission channel 2 are arranged from left to right, the first transmission channel 1 and the third transmission channel 8 are connected through one or more sixth through holes 13, the third transmission channel 8 and the fourth transmission channel 9 are connected through one or more fourth through holes 11, the first transmission channel 1 and the second transmission channel 2 are further connected through a fifth through hole 12, and the distance between the fifth through hole 12 and the first side 101 is greater than the distance between the first through hole 3 and the first side 101.

[0065] In some optional embodiments, an antenna device is provided according to one of the above embodiments of the present application, wherein the antenna device also includes a signal source 5, the signal source 5 is arranged at the entrance of the first transmission channel 1, and the signal emitted by the signal source 5 enters the second transmission channel 2 through the first through hole 3.

[0066] In some optional implementations, according to the antenna device provided by one of the above implementations of the present application, Fig.13 The rectangular portion marked as 4 is the second through hole 4. Fig.11 The projection on the cross section marked as G in the antenna device according to the second embodiment of the present application is shown.

[0067] The advantages of the antenna device according to the embodiment of the present application are: reducing the interference of electromagnetic wave reflection on the antenna signal; no need to use a traditional terminator, and being suitable for miniaturized antenna circuits.

[0068] Although the present application has been described and illustrated with reference to the specific embodiments of the present application, these descriptions and illustrations are not intended to limit the present application. It will be clearly understood by those skilled in the art that various changes may be made, and equivalent elements may be substituted within the embodiments without departing from the scope of protection of the present application as defined by the claims. Due to variables in the manufacturing process, etc., there may be differences between the technical reproduction in the present application and the actual device. There may be other embodiments of the present application that are not specifically described. The description and illustrations should be regarded as illustrative, not restrictive, and modifications may be made according to the purpose and spirit of the present application, all of which are within the scope of protection of the claims. Although the methods disclosed herein have been described with reference to specific operations performed in a specific order, it should be understood that these operations may be recombined, subdivided or arranged to form equivalent methods without departing from the teachings of the present application. Therefore, unless specifically indicated herein, the order and grouping of operations do not limit the present application.

Claims

1. An antenna device, characterized in that: include: A first transmission channel; a second transmission channel, the second transmission channel being connected to the first transmission channel through a first through hole; a waveguide channel, wherein the waveguide channel is connected to the second transmission channel through a second through hole; The antenna device has a first side and a second side opposite to each other, the first through hole and the second through hole are both located close to the first side, and the distance between the second through hole and the first side is smaller than the distance between the first through hole and the first side.

2. The antenna device according to claim 1, characterized in that The antenna device also includes a signal source, which is arranged at the entrance of the first transmission channel. The signal emitted by the signal source enters the second transmission channel through the first through hole.

3. The antenna device according to claim 1, characterized in that: The antenna device further includes a first conductor layer, wherein the first conductor layer is disposed above the first transmission channel and the second transmission channel, the waveguide channel is disposed above the first conductor layer, and the second through hole is disposed on the first conductor layer.

4. The antenna device according to claim 1, characterized in that: The waveguide channel is located above the second transmission channel and the first transmission channel.

5. The antenna device according to claim 4, characterized in that: An extension direction of the waveguide channel is at least partially parallel to an extension direction of the second transmission channel.

6. The antenna device according to claim 1, characterized in that: An extending direction of the waveguide channel is different from an extending direction of the second transmission channel.

7. The antenna device according to claim 1, characterized in that: The waveguide channel includes a first straight portion, a second straight portion and a bent portion, and the first straight portion and the second straight portion are connected through the bent portion.

8. The antenna device according to claim 1, characterized in that The waveguide channel guides the propagation direction of the electromagnetic wave to be different from the propagation direction of the electromagnetic wave in the first transmission channel and the second transmission channel.

9. The antenna device according to claim 1, characterized in that: The antenna device further includes a partition wall, wherein the partition wall is disposed between the first transmission channel and the second transmission channel, and the first through hole is disposed on the partition wall.

10. The antenna device according to claim 1, characterized in that: The first transmission channel communicates the first side and the second side, and the second transmission channel communicates the first side and the second side.

Images