Antenna device and manufacturing method thereof

Abstract

To provide an antenna device that can improve its characteristics, and a method for manufacturing the same.SOLUTION: According to an embodiment, an antenna device includes a first structure, a second structure, a third structure, a signal line, a first resin member, and a first intermediate member. The first structure includes a first insulating member, a first conductive layer, and a first connection conductive member. The first connection conductive member penetrates the first insulating member and includes a first cylindrical part. The second structure includes a second insulating member, a second conductive layer, and a second connection conductive member. The signal line is provided between the second insulating member and the first insulating member. The first resin member includes a first resin area and a second resin area. The first resin area is provided between the first structure and the second structure. The second resin area is provided in at least part of a first space in the first cylindrical part. The first structure is provided between the second structure and the third structure. A first gap is provided between the first structure and the third structure.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] FIELD Embodiments of the present invention relate to an antenna device and a manufacturing method thereof. [Background technology]

[0002] For example, it is desirable to improve the characteristics of antenna devices. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-41790 A Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE INVENTION An embodiment of the present invention provides an antenna device capable of improving characteristics, and a manufacturing method thereof. [Means for solving the problem]

[0005] According to an embodiment of the present invention, an antenna device includes a first structure, a second structure, a third structure, a signal line, a first resin member, and a first intermediate member. The first structure includes a first insulating member, a first conductive layer, and a first connecting conductive member. The first connecting conductive member penetrates the first insulating member along a first direction. The first connecting conductive member includes a first tubular portion along the first direction. The first connecting conductive member is electrically connected to the first conductive layer. The second structure includes a second insulating member, a second conductive layer, and a second connecting conductive member. The second connecting conductive member penetrates the second insulating member along the first direction. The second connecting conductive member is electrically connected to the second conductive layer. At least a portion of the second insulating member is provided between the second conductive layer and the first conductive layer. At least a portion of the first insulating member is provided between the second insulating member and the first conductive layer. The signal line is provided between the second insulating member and the first insulating member. The first resin member includes a first resin region and a second resin region. The first resin region is provided between the first structure and the second structure. The second resin region is provided in at least a part of a first space in the first cylindrical portion. The third structure includes a third insulating member and a third conductive layer. The first structure is provided between the second structure and the third structure in the first direction. A first gap is provided between the first structure and the third structure. The first intermediate member is provided between the first structure and the third structure and is in contact with the first structure and the third structure. [Brief explanation of the drawings]

[0006] [Figure 1] FIG. 1 is a schematic cross-sectional view illustrating the antenna device according to the first embodiment. [Figure 2] FIG. 2 is a schematic plan view illustrating the antenna device according to the first embodiment. [Figure 3] FIG. 3 is a schematic perspective view illustrating a part of the antenna device according to the first embodiment. [Figure 4] FIG. 4 is a schematic cross-sectional view illustrating the antenna device according to the first embodiment. [Figure 5] FIG. 5 is a schematic cross-sectional view illustrating the antenna device according to the first embodiment. [Figure 6] 6A to 6C are schematic cross-sectional views illustrating a method for manufacturing the antenna device according to the second embodiment. [Figure 7] 7A to 7C are schematic cross-sectional views illustrating a method for manufacturing the antenna device according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0007] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The drawings are schematic or conceptual, and the relationship between the thickness and width of each part, the size ratio between parts, etc. are not necessarily the same as those in reality. Even when the same part is shown, the dimensions and ratios may be different depending on the drawing. In this specification and in each drawing, elements similar to those previously described with reference to the previous drawings are designated by the same reference numerals, and detailed descriptions thereof will be omitted where appropriate.

[0008] (First embodiment) FIG. 1 is a schematic cross-sectional view illustrating the antenna device according to the first embodiment. FIG. 2 is a schematic plan view illustrating the antenna device according to the first embodiment. FIG. 3 is a schematic perspective view illustrating a part of the antenna device according to the first embodiment. FIG. 1 is a cross-sectional view taken along line A1-A2 in FIG.

[0009] 1 and 3, an antenna device 110 according to the embodiment includes a first structure 10, a second structure 20, a third structure 30, a signal line 40, a first resin member 41, and a first intermediate member 51. In Fig. 3, these structures are depicted separated from each other.

[0010] The first structure 10 includes a first insulating member 11, a first conductive layer 12, and a first connecting conductive member 13. The first connecting conductive member 13 penetrates the first insulating member 11 along a first direction D1. The first connecting conductive member 13 includes a first tubular portion 13c extending along the first direction D1. The first connecting conductive member 13 is electrically connected to the first conductive layer 12.

[0011] The second structure 20 includes a second insulating member 21, a second conductive layer 22, and a second connecting conductive member 23. The second connecting conductive member 23 penetrates the second insulating member 21 along the first direction D1. The second connecting conductive member 23 is electrically connected to the second conductive layer 22.

[0012] For example, at least a portion of the second insulating member 21 is provided between the second conductive layer 22 and the first conductive layer 12. At least a portion of the first insulating member 11 is provided between the second insulating member 21 and the first conductive layer 12.

[0013] The signal line 40 is provided between the second insulating member 21 and the first insulating member 11. The first resin member 41 includes a first resin region 41a and a second resin region 41b. The first resin region 41a is provided between the first structure 10 and the second structure 20. The second resin region 41b is provided in at least a part of the first space SP1 in the first tubular portion 13c. The first resin region 41a and the second resin region 41b may be continuous with each other. The boundary between these regions may be clear or unclear. For example, the first resin region 41a is provided between the first insulating member 11 and the second insulating member 21.

[0014] The first structure 10 is provided between the second structure 20 and the third structure 30 in the first direction D1. The third structure 30 includes a third insulating member 31 and a third conductive layer 32. As shown in FIG. 1 , a first gap G1 is provided between the first structure 10 and the third structure 30.

[0015] The first intermediate member 51 is provided between the first structure 10 and the third structure 30. The first intermediate member 51 contacts the first structure 10 and the third structure 30.

[0016] As shown in Fig. 3, for example, a signal line 40 and a second conductive layer 22 are electrically connected to a signal circuit 70. An electric signal is supplied from the signal circuit 70 to the signal line 40. The electric signal is a high-frequency signal. The supplied electric signal is transmitted to the third conductive layer 32 via the signal line 40. A radio wave corresponding to the electric signal is emitted from the third conductive layer 32. The third conductive layer 32 functions as, for example, a patch antenna.

[0017] In the embodiment, the signal line 40 is provided between the first conductive layer 12 and the second conductive layer 22 in the first direction D1. These conductive layers are capacitively coupled via the first connecting conductive member 13 and the second connecting conductive member 23. Alternatively, these conductive layers may be electrically connected via the first connecting conductive member 13 and the second connecting conductive member 23.

[0018] For example, a first resin member 41 is provided between the first structure 10 and the second structure 20. The first resin member 41 fixes the relative positions of these structures. The first resin member 41 may function as, for example, an adhesive layer. For example, a resin material that will become the first resin member 41 is inserted between these structures, and pressure is applied to these structures to bring them closer to each other. The distance between these structures becomes the desired distance. At this time, the resin material present between these structures can flow out, for example, into a first space SP1 in the first cylindrical portion 13c of the first connecting conductive member 13. At this time, a first gap G1 is provided between the first structure 10 and the third structure 30. Air present in the first space SP1 can flow out to the outside through the first gap G1.

[0019] With this configuration, the resin material that will become the first resin member 41 can spread thinly and uniformly between these structures, and it is possible to prevent voids from being formed in the resin material in the first space SP1.

[0020] A portion of the resin material (second resin region 41b) that becomes the first resin member 41 enters the first cylindrical portion 13c. This results in a thin and uniform first resin member 41. For example, the distance between the first connecting conductive member 13 and the second connecting conductive member 23 can be stably controlled with high precision. Stable capacitive coupling or electrical connection between these connecting conductive members is obtained. Stable coupling or connection results in stable radiation of radio waves. According to the embodiment, an antenna device with improved characteristics can be provided.

[0021] For example, if a resin member contains voids, the volume of the voids may fluctuate due to temperature changes, which may cause distortion in the structure. This may lead to unstable structure and characteristics. In the embodiment, voids are suppressed. This makes it easier to obtain stable structure and characteristics. For example, it is easier to obtain higher reliability.

[0022] 1 and 3, for example, the first conductive layer 12 includes a slot 12o. The slot 12o corresponds to, for example, an opening provided in the first conductive layer 12. At least a portion of the slot 12o is located between the signal line 40 and the third conductive layer 32 in the first direction D1.

[0023] The first conductive layer 12, the signal line 40, and the second conductive layer 22 function as, for example, a strip line 55. The strip line 55 corresponds to, for example, a triplate line. The strip line 55 efficiently radiates radio waves based on the supplied electrical signal.

[0024] Power is fed from the strip line 55 to the third conductive layer 32 via the slot 12o. The antenna device 110 is, for example, a slot-coupled feed patch antenna. In the antenna device 110, the strip line 55 serves as a feed line.

[0025] In a stripline-fed patch antenna, an unwanted parallel plate mode occurs inside the stripline 55 (for example, in the region overlapping with the third conductive layer 32). The parallel plate mode propagates between the two conductive layers included in the stripline 55. The propagation of the parallel plate mode causes power leakage and reduces the antenna efficiency.

[0026] In the embodiment, the first connecting conductive member 13 and the second connecting conductive member 23 allow a current (high frequency current) to flow between the first conductive layer 12 and the second conductive layer 22. This suppresses the parallel plate mode.

[0027] As described above, in the embodiment, the distance between the first connection conductive member 13 and the second connection conductive member 23 can be uniformly shortened with high precision. This allows high-frequency current to flow between the first connection conductive member 13 and the second connection conductive member 23 with high efficiency. The parallel plate mode can be more effectively suppressed. According to the embodiment, power leakage can be more effectively suppressed. High antenna efficiency can be obtained. An antenna device with improved characteristics can be provided.

[0028] For example, the second resin region 41b is provided in the first space SP1, which increases the contact area between the first resin member 41 and the first connecting conductive member 13. This makes it easier to obtain high mechanical strength.

[0029] 1 and 3, in this example, the signal line 40 is fixed to the first insulating member 11. As will be described later, the signal line 40 may also be fixed to the second insulating member 21.

[0030] 1, a portion of the first resin region 41a may be provided between the second connection conductive members 23 and the first connection conductive members 13. In this case, the second connection conductive members 23 can be capacitively coupled to the first connection conductive members 13.

[0031] 1 and 3, the first connection conductive member 13 may further include a first planar portion 13p. The first planar portion 13p overlaps with the first insulating member 11 in the first direction D1. The first planar portion 13p is, for example, a fringe portion.

[0032] 1, the first planar portion 13p is provided between the first resin region 41a and the second resin region 41b. This increases the contact area between the first planar portion 13p and the first resin member 41. This makes it easier to obtain high mechanical strength.

[0033] As shown in FIGS. 1 and 3, the second connection conductive member 23 may include a second planar portion 23p. The second planar portion 23p overlaps the second insulating member 21 in the first direction D1. The second planar portion 23p is, for example, a fringe portion. At least a portion of the second planar portion 23p may face the first planar portion 13p. For example, this can increase the capacitance between the first connection conductive member 13 and the second connection conductive member 23. More efficient coupling can be achieved.

[0034] 1, a first distance d1 is the distance along the first direction D1 between the first connection conductive members 13 and the second connection conductive members 23. In one example, the first distance d1 is, for example, not less than 0.05 μm and not more than 10 μm.

[0035] 1, the distance along the first direction D1 between the first insulating member 11 and the second insulating member 21 is defined as a second distance d2. In one example, the second distance d2 is not less than 10 μm and not more than 200 μm.

[0036] 1, the distance along the first direction D1 between the first insulating member 11 and the third insulating member 31 is defined as a third distance d3. The third distance d3 is, for example, equal to or less than half the wavelength of the radio waves transmitted and received by the antenna device 110. In one example, the third distance d3 is, for example, equal to or greater than 1 / 100 of the wavelength of the radio waves.

[0037] 1, the distance along the first direction D1 between the first conductive layer 12 and the third insulating member 31 is defined as a fourth distance d4. The fourth distance d4 is, for example, equal to or less than half the wavelength of the radio waves transmitted and received by the antenna device 110. In one example, the fourth distance d4 is, for example, equal to or greater than 1 / 100 of the wavelength of the radio waves.

[0038] In this embodiment, the first space SP1 is connected to the first gap G1. Air present in the first space SP1 can flow out through the first gap G1. This prevents voids from being generated.

[0039] As shown in FIGS. 1 and 3, the second connection conductive member 23 may include a second cylindrical portion 23c extending along the first direction D1. As shown in FIG. 1, the second structure 20 may further include a filler member 20F. At least a portion of the filler member 20F is provided in at least a portion of the second space SP2 inside the second cylindrical portion 23c. If the second space SP2 inside the second cylindrical portion 23c is a gap, there is a possibility that an unintended member may enter the gap. By providing the filler member 20F in the second space SP2 inside the second cylindrical portion 23c, the characteristics of the second cylindrical portion 23c are more likely to be stable. The filler member 20F may be conductive or insulating.

[0040] 2, the slot 12o may have a polygonal shape. The slot 12o may have any shape. The signal line 40 may have any planar shape.

[0041] In the antenna device 110, the first intermediate member 51 may join the first structure 10 and the third structure 30. The first intermediate member 51 may include, for example, a conductive material or an insulating material.

[0042] The first resin member 41 may contain a resin material and a plurality of fillers. By providing a plurality of fillers, the distance between the first structure 10 and the second structure 20 can be controlled more stably. High mechanical strength can be easily obtained. High thermal stability can be easily obtained.

[0043] FIG. 4 is a schematic cross-sectional view illustrating the antenna device according to the first embodiment. 4, in the antenna device 111 according to this embodiment, the configuration of the signal line 40 is different from the configuration of the signal line 40 in the antenna device 110. Other than this, the configuration of the antenna device 111 may be the same as the configuration of the antenna device 110.

[0044] In the antenna device 111, the signal line 40 is fixed to the second insulating member 21. In the antenna device 111 as well, for example, capacitive coupling or electrical connection between the first connecting conductive member 13 and the second connecting conductive member 23 can be stably obtained. An antenna device with improved characteristics can be provided.

[0045] FIG. 5 is a schematic cross-sectional view illustrating the antenna device according to the first embodiment. 5, in antenna device 112 according to this embodiment, second connection conductive members 23 contact first connection conductive members 13. The remaining configuration of antenna device 112 may be similar to that of antenna device 110. In antenna device 112 as well, stable electrical connection is obtained between first connection conductive members 13 and second connection conductive members 23. An antenna device with improved characteristics can be provided.

[0046] Voids and the like are also suppressed in the antenna device 111 and the antenna device 112. Stable structure and characteristics are easily obtained. Higher reliability is easily obtained. Power leakage due to the parallel plate mode can be effectively suppressed. High antenna efficiency is obtained.

[0047] (Second embodiment) The second embodiment relates to a method for manufacturing an antenna device. 6 and 7 are schematic cross-sectional views illustrating a method for manufacturing the antenna device according to the second embodiment. As shown in FIG. 6, the manufacturing method according to the embodiment includes preparing a first structure 10 and a second structure 20.

[0048] The first structure 10 includes a first insulating member 11, a first conductive layer 12, and a first connecting conductive member 13. The first connecting conductive member 13 penetrates the first insulating member 11 along a first direction D1. The first connecting conductive member 13 includes a first tubular portion 13c extending along the first direction D1. The first connecting conductive member 13 is electrically connected to the first conductive layer 12.

[0049] The second structure 20 includes a second insulating member 21, a second conductive layer 22, and a second connecting conductive member 23. The second connecting conductive member 23 penetrates the second insulating member 21 along the first direction D1. The second connecting conductive member 23 is electrically connected to the second conductive layer 22. At least a portion of the second insulating member 21 is provided between the second conductive layer 22 and the first conductive layer 12. At least a portion of the first insulating member 11 is provided between the second insulating member 21 and the first conductive layer 12. Either the first structure 10 or the second structure 20 includes a signal line 40. The signal line 40 is provided between the second insulating member 21 and the first insulating member 11.

[0050] As shown in FIG. 6, a first resin member 41 is supplied between the first structure 10 and the second structure 20.

[0051] 7, thereafter, the distance between the first structure 10 and the second structure 20 is decreased, and a portion of the first resin member 41 is moved into the first space SP1 inside the first cylindrical portion 13c. In this state, the first structure 10 and the second structure 20 are fixed together.

[0052] According to the embodiment, it is possible to form a thin and uniform first resin member 41. Formation of voids in the first resin member 41 is suppressed.

[0053] The manufacturing method according to the embodiment may further include bonding the first structure 10 and the third structure 30. As shown in FIG. 1 , the third structure 30 includes a third insulating member 31 and a third conductive layer 32. The first structure 10 is provided between the second structure 20 and the third structure 30 in the first direction D1. A first gap G1 is provided between the first structure 10 and the third structure 30.

[0054] In the embodiment, the first cylindrical portion 13c can be formed as an electrode by, for example, forming a hole in the first insulating member 11 and forming a conductive film on the side surface of the hole. The hole can be formed by mechanical grinding or laser irradiation, etc. The conductive film can be formed by plating, etc. In the embodiment, the conductive layer can be formed by any method.

[0055] The embodiments may include the following technical solutions. (Technical proposal 1) a first structure including a first insulating member, a first conductive layer, and a first connecting conductive member, the first connecting conductive member penetrating the first insulating member along a first direction, the first connecting conductive member including a first tubular portion along the first direction, and the first connecting conductive member electrically connected to the first conductive layer; a second structure including a second insulating member, a second conductive layer, and a second connecting conductive member, the second connecting conductive member penetrating the second insulating member along the first direction, the second connecting conductive member being electrically connected to the second conductive layer, at least a portion of the second insulating member being provided between the second conductive layer and the first conductive layer, and at least a portion of the first insulating member being provided between the second insulating member and the first conductive layer; a signal line provided between the second insulating member and the first insulating member; a first resin member including a first resin region and a second resin region, the first resin region being provided between the first structure and the second structure, and the second resin region being provided in at least a part of a first space in the first cylindrical portion; a third structure, the third structure including a third insulating member and a third conductive layer, the first structure being provided between the second structure and the third structure in the first direction, and a first gap being provided between the first structure and the third structure; a first intermediate member provided between the first structure and the third structure and in contact with the first structure and the third structure; An antenna device comprising:

[0056] (Technical proposal 2) the first conductive layer includes a slot; The antenna device described in Technical Solution 1, wherein at least a portion of the slot is located between the signal line and the third conductive layer in the first direction.

[0057] (Technical proposal 3) The antenna device described in Technical Solution 1 or 2, wherein the signal line is fixed to the first insulating member.

[0058] (Technical proposal 4) The antenna device described in Technical Solution 1 or 2, wherein the signal line is fixed to the second insulating member.

[0059] (Technical proposal 5) The antenna device according to any one of Technical Solutions 1 to 4, wherein a portion of the first resin region is provided between the second connecting conductive member and the first connecting conductive member.

[0060] (Technical proposal 6) The antenna device according to any one of Technical Solutions 1 to 5, wherein the second connecting conductive member is capable of capacitive coupling with the first connecting conductive member.

[0061] (Technical proposal 7) The antenna device according to any one of Technical Solutions 1 to 4, wherein the second connecting conductive member is in contact with the first connecting conductive member.

[0062] (Technical proposal 8) The antenna device according to any one of Technical Schemes 1 to 7, wherein the first intermediate member joins the first structure and the third structure.

[0063] (Technical proposal 9) The antenna device according to any one of Technical Schemes 1 to 8, wherein the first space is connected to the first air gap.

[0064] (Technical proposal 10) the first connecting conductive member further includes a first planar portion, The antenna device according to any one of Technical Solutions 1 to 9, wherein the first planar portion overlaps with the first insulating member in the first direction.

[0065] (Technical proposal 11) The antenna device described in Technical Proposal 10, wherein the first planar portion is provided between the first resin region and the second resin region.

[0066] (Technical proposal 12) the second connecting conductive member includes a second planar portion, the second planar portion overlaps the second insulating member in the first direction, The antenna device described in Technical Solution 10 or 11, wherein at least a portion of the second planar portion faces the first planar portion.

[0067] (Technical proposal 13) the second connecting conductive member includes a second planar portion, The antenna device according to any one of Technical Solutions 1 to 11, wherein the second planar portion overlaps with the second insulating member in the first direction.

[0068] (Technical proposal 14) the second connection conductive member includes a second cylindrical portion extending along the first direction, the second structure further includes a filler member; The antenna device according to any one of Technical Schemes 1 to 13, wherein at least a portion of the filling member is provided in at least a portion of the second space in the second cylindrical portion.

[0069] (Technical proposal 15) An antenna device described in any one of Technical Schemes 1 to 14, wherein a first distance along the first direction between the first connecting conductive member and the second connecting conductive member is not less than 0.05 μm and not more than 10 μm.

[0070] (Technical proposal 16) The antenna device according to any one of Technical Schemes 1 to 15, wherein a second distance along the first direction between the first insulating member and the second insulating member is not less than 10 μm and not more than 200 μm.

[0071] (Technical proposal 17) An antenna device described in any one of technical proposals 1 to 16, wherein a third distance along the first direction between the first insulating member and the third insulating member is less than or equal to 1 / 2 of the wavelength of the radio waves being transmitted and received.

[0072] (Technical proposal 18) a first direction between the first conductive layer and the third insulating member; Towards The fourth distance along of radio waves sent and received The wavelength is 1 / 2 or less. Proposal 17 The antenna device described above.

[0073] (Technical proposal 19) a first structure and a second structure are prepared, the first structure including a first insulating member, a first conductive layer, and a first connecting conductive member, the first connecting conductive member penetrating the first insulating member along a first direction, the first connecting conductive member including a first tubular portion along the first direction, the first connecting conductive member being electrically connected to the first conductive layer; the second structure including a second insulating member, a second conductive layer, and a second connecting conductive member, the second connecting conductive member penetrating the second insulating member along the first direction, the second connecting conductive member being electrically connected to the second conductive layer, at least a portion of the second insulating member being provided between the second conductive layer and the first conductive layer, at least a portion of the first insulating member being provided between the second insulating member and the first conductive layer; one of the first structure and the second structure includes a signal line, the signal line being provided between the second insulating member and the first insulating member; A method for manufacturing an antenna device, comprising: supplying a first resin member between the first structure and the second structure; reducing the distance between the first structure and the second structure; and moving a portion of the first resin member into a first space inside the first cylindrical portion, thereby fixing the first structure and the second structure.

[0074] (Technical proposal 20) further comprising joining the first structure and a third structure; A method for manufacturing an antenna device described in Technical Proposal 19, wherein the third structure includes a third insulating member and a third conductive layer, the first structure is arranged between the second structure and the third structure in the first direction, and a first gap is arranged between the first structure and the third structure.

[0075] According to the embodiment, it is possible to provide an antenna device capable of improving characteristics, and a manufacturing method thereof.

[0076] The above describes embodiments of the present invention with reference to examples. However, the present invention is not limited to these examples. For example, the specific configurations of each element included in the antenna device, such as the insulating member, conductive layer, connecting conductive member, signal line, and resin member, are within the scope of the present invention as long as a person skilled in the art can implement the present invention in a similar manner and obtain similar effects by appropriately selecting them from known ranges.

[0077] Any combination of two or more elements of each example within the scope of technical feasibility is also included within the scope of the present invention as long as it encompasses the gist of the present invention.

[0078] All antenna devices and manufacturing methods that can be implemented by a person skilled in the art by making appropriate design modifications based on the antenna device and manufacturing method described above as an embodiment of the present invention also fall within the scope of the present invention, as long as they include the gist of the present invention.

[0079] Within the scope of the concept of the present invention, a person skilled in the art may conceive of various modifications and alterations, and it is understood that these modifications and alterations also fall within the scope of the present invention.

[0080] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0081] 10, 20, 30: first, second, and third structures; 11, 21, 31: first, second, and third insulating members; 12, 22, 32: first, second, and third conductive layers; 12o: slot; 13, 23: first and second connecting conductive members; 13c, 23c: first and second cylindrical portions; 13p, 23p: first and second planar portions; 20F: filling member; 40: signal line; 41: first resin member; 41a, 41b: first and second resin regions; 51: first intermediate member; 55: strip line; 70: signal circuit; 110-112: antenna device; D1: first direction; G1: first gap; SP1, SP2: first and second spaces; d1-d4: first to fourth distances

Claims

1. a first structure including a first insulating member, a first conductive layer, and a first connecting conductive member, the first connecting conductive member penetrating the first insulating member along a first direction, the first connecting conductive member including a first tubular portion along the first direction, and the first connecting conductive member electrically connected to the first conductive layer; a second structure including a second insulating member, a second conductive layer, and a second connecting conductive member, the second connecting conductive member penetrating the second insulating member along the first direction, the second connecting conductive member being electrically connected to the second conductive layer, at least a portion of the second insulating member being provided between the second conductive layer and the first conductive layer, and at least a portion of the first insulating member being provided between the second insulating member and the first conductive layer; a signal line provided between the second insulating member and the first insulating member; a first resin member including a first resin region and a second resin region, the first resin region being provided between the first structure and the second structure, and the second resin region being provided in at least a part of a first space in the first cylindrical portion; a third structure including a third insulating member and a third conductive layer, the first structure being provided between the second structure and the third structure in the first direction, and a first gap being provided between the first structure and the third structure; a first intermediate member provided between the first structure and the third structure and in contact with the first structure and the third structure; An antenna device comprising:

2. the first conductive layer includes a slot; The antenna device according to claim 1 , wherein at least a portion of the slot is between the signal line and the third conductive layer in the first direction.

3. The antenna device according to claim 1 , wherein the signal line is fixed to the first insulating member.

4. The antenna device according to claim 1 , wherein the signal line is fixed to the second insulating member.

5. 5. The antenna device according to claim 1, wherein a portion of the first resin region is provided between the second connecting conductive member and the first connecting conductive member.

6. The antenna device according to claim 1 , wherein the second connecting conductive member is capable of capacitive coupling with the first connecting conductive member.

7. 5. The antenna device according to claim 1, wherein the second connecting conductive member is in contact with the first connecting conductive member.

8. 5. The antenna device according to claim 1, wherein the first intermediate member joins the first structure and the third structure.

9. The antenna device according to claim 1, wherein the first space is connected to the first air gap.

10. the first connecting conductive member further includes a first planar portion, 5. The antenna device according to claim 1, wherein the first planar portion overlaps with the first insulating member in the first direction.

11. The antenna device according to claim 10 , wherein the first planar portion is provided between the first resin region and the second resin region.

12. the second connection conductive member includes a second planar portion, the second planar portion overlaps the second insulating member in the first direction, The antenna device according to claim 10 , wherein at least a portion of the second planar portion faces the first planar portion.

13. the second connection conductive member includes a second planar portion, 5. The antenna device according to claim 1, wherein the second planar portion overlaps with the second insulating member in the first direction.

14. the second connection conductive member includes a second cylindrical portion extending along the first direction, the second structure further includes a filler member; 5. The antenna device according to claim 1, wherein at least a portion of the filling member is provided in at least a portion of the second space in the second cylindrical portion.

15. a first structure and a second structure are prepared, the first structure including a first insulating member, a first conductive layer, and a first connecting conductive member, the first connecting conductive member penetrating the first insulating member along a first direction, the first connecting conductive member including a first tubular portion along the first direction, the first connecting conductive member being electrically connected to the first conductive layer; the second structure including a second insulating member, a second conductive layer, and a second connecting conductive member, the second connecting conductive member penetrating the second insulating member along the first direction, the second connecting conductive member being electrically connected to the second conductive layer, at least a portion of the second insulating member being provided between the second conductive layer and the first conductive layer, at least a portion of the first insulating member being provided between the second insulating member and the first conductive layer; one of the first structure and the second structure includes a signal line, the signal line being provided between the second insulating member and the first insulating member; A method for manufacturing an antenna device, comprising: supplying a first resin member between the first structure and the second structure; reducing the distance between the first structure and the second structure; and moving a portion of the first resin member into a first space within the first cylindrical portion to fix the first structure and the second structure.

16. further comprising joining the first structure and a third structure; 16. The method for manufacturing an antenna device according to claim 15, wherein the third structure includes a third insulating member and a third conductive layer, the first structure is provided between the second structure and the third structure in the first direction, and a first gap is provided between the first structure and the third structure.

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