JP7075534B1 - Film antenna - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a film antenna which prevents dust and foreign matter from being mixed in a gap, suppresses a decrease in adhesiveness of a film portion, a decrease in antenna performance and a decrease in durability of a film portion.
A film antenna includes a base material and a film material 200 including an antenna having a joint portion 202 joined to the base material and a protruding portion 204 protruding from the base material. At least a part of the joint portion 202 of the film material 200 is arranged on the upper surface of the base material, and the lower member 300 having a lower surface installed on the installation target surface on which the film antenna is installed and the joint portion 202 of the film material are on the base material. It has a middle member 310 arranged in the middle member and an upper member 320 arranged on the middle member. The protruding portion 204 of the film material 200 protrudes from the lower end of the base material.
[Selection diagram] FIG. 5

Description

The present invention relates to a film antenna.

Patent Document 1 describes a film antenna that is attached to a window glass of a vehicle or the like, is composed of a feeding portion and a film portion that includes an antenna, and can be used in various communication systems.
(See, for example, Patent Document 1).
[Prior Art Document]
[Patent Document]
[Patent Document 1] Japanese Unexamined Patent Publication No. 2006-5400

According to one embodiment of the invention, a film antenna is provided. The film antenna may include a substrate. The film antenna may include a film material containing the antenna. The film material may have a first portion bonded to the substrate and a second portion protruding from the substrate. The base material may have a lower member having a lower surface on which at least a part of the first portion of the film material is arranged on the upper surface and which is installed on the installation target surface on which the film antenna is installed. The substrate may have a middle member disposed on the first portion of the film material. The base material may have an upper member arranged on the middle member. The second portion of the film material may project from the lower end of the substrate.

The base material may have a connector arranged on the middle member and wiring for electrically connecting the connector and the antenna. At least a part of the first portion of the film material may be inclined. All the inclined portions of the first portion of the film material may be arranged on the lower member. The lower member may have a curved end on the side where the film material is arranged and on the side where the film material protrudes.

The lower member has a base portion, a first stretched portion stretched in a direction in which the film material protrudes from one end side of the base portion, and a first stretched portion stretched in a direction in which the film material protrudes from the other end side of the base portion. It may have a stretched second stretched portion. The first stretched portion and the second stretched portion are inclined in the stretching direction, and the inclined portion of the first portion of the film material may be arranged on the upper surface. The first portion of the film material may be entirely arranged on the lower member, and the lower member may be entirely inclined from the upper member toward the installation target surface.

The first portion of the film material includes a portion arranged on the upper surface of the lower member and a portion not arranged on the upper surface of the lower member but arranged on the installation target surface. It's fine. The wiring of the base material may be connected to the wiring arranged in the film material at a portion arranged on the installation target surface, and may be electrically connected to the antenna. The lower member may be made of an elastic material at an end portion on the upper surface side and on the side where the film material protrudes. The upper member may have a cover portion that covers one end of the middle member and has an end portion arranged at a boundary between the first portion and the second portion of the film material. The lower member may be a heat-resistant member.

According to one embodiment of the invention, a film antenna is provided. The film antenna may include a substrate. The film antenna may include a film material containing the antenna. The film material may have a first portion encapsulated and bonded to the substrate and a second portion protruding from the substrate. The base material is a lower member having a base portion on which the first portion of the film material is arranged on the upper surface and an inclined portion protruding from the base portion and having an inclined portion on which the second portion of the film material is arranged. May have. The substrate may have a middle member disposed on the first portion of the film material. The base material may have an upper member arranged on the middle member.

The base material may include a connector arranged on the middle member and wiring for electrically connecting the connector and the antenna. The inclined portion may be inclined from the height of the upper surface of the base portion to the height of the lower surface of the base portion. The base portion and the inclined portion may have a lower surface to be installed on an installation target surface on which the film antenna is installed.

According to one embodiment of the invention, a film antenna is provided. The film antenna may include a substrate. The film antenna may include a film material containing the antenna, which has a first portion joined to the substrate and a second portion protruding from the substrate. The film material may have an inclined portion on the base material side with respect to the boundary between the first portion and the second portion.

The outline of the above invention does not list all the necessary features of the present invention. A subcombination of these feature groups can also be an invention.

An example of the conventional film antenna 60 is shown schematically. An example of the XX cross section of the conventional film antenna 60 is schematically shown. An example of the film antenna 10 according to the present embodiment is schematically shown. An example of the YY cross section of the film antenna 10 is shown schematically. An example of the ZZ cross section of the film antenna 10 is shown schematically. Another example of the base material 100 is shown schematically. Another example of the base material 100 is shown schematically. Another example of the base material 100 is shown schematically. Another example of the lower member 300 is schematically shown. Another example of the lower member 300 is shown schematically. Another example of the lower member 300 is shown schematically. Another example of the film antenna 10 is shown schematically. Another example of the film antenna 10 is shown schematically.

In a film antenna provided with a power feeding unit and a film material containing an antenna, if a gap, which is a floating film, is created between the installation target surface and the film material, the adhesive strength is reduced by air bubbles or the durability is reduced by dust contamination. It is possible that the sex may deteriorate. In the film antenna according to the present embodiment, for example, a type in which a gap between the installation target surface and the film material is included in the feeding portion side and isolated from the outside is adopted. As a result, it is possible to prevent dust and foreign matter from entering the gap, and it is possible to contribute to suppressing deterioration of the adhesiveness of the film portion, deterioration of antenna performance, deterioration of durability of the film portion, and the like.

Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention within the scope of the claims. Also, not all combinations of features described in the embodiments are essential to the means of solving the invention.

FIG. 1 schematically shows an example of a conventional film antenna 60. FIG. 2 schematically shows an example of an XX cross section of the film antenna 60.

The film antenna 60 includes a base material 600, a film material 700, and a connector 800. The base material 600 may be referred to as a feeding unit. The base material 600 has a lower member 610, a middle member 620, and an upper member 630. The lower member 610 has a plate shape, and a part of the film material 700 is arranged on the upper surface thereof. The middle member 620 is arranged on a part of the film material 700, and the upper member 630 is arranged on the middle member 620.

The film material 700 includes an antenna 710 and a wiring 712. A connector 800 and wiring 802 are arranged on the middle member 620. The wiring 802 and the wiring 712 are connected, and the connector 800 and the antenna 710 are electrically connected.

The lower member 610 is adhered to the installation target surface on which the film antenna 60 is installed. The lower member 610 is responsible for preventing or reducing the heat generated in at least one of the connector 800, the wiring 802, and the wiring 712 from being transferred to the installation target surface.

When the conventional film antenna 60 is installed on the surface to be installed, the film material 700 may float, that is, a gap may be formed. If dust or foreign matter is mixed in the gap, it is considered that the durability of the film antenna 60 may be lowered. The gap can be reduced or eliminated by bending the film material 700 from the base material 600 at a steep angle, but the resistance of the wiring 712 at the bent portion increases or the wiring 712 is damaged at the bent portion. It is not desirable because it may cause

FIG. 3 schematically shows an example of the film antenna 10 according to the present embodiment. The film antenna 10 may include a base material 100 and a film material 200. The film antenna 10 may include a connector 400.

The film antenna 10 may be connected to a radio (not shown) via the connector 400, and may provide the radio with an antenna function. Examples of the antenna function include, but are not limited to, a transmission / reception function for 5G (5th Generation Mobile Communication System) and a transmission / reception function for LTE (Long Term Evolution).

The film antenna 10 may be installed by being adhered to a surface such as a transparent window of a building. Not limited to this, the film antenna 10 may be installed at any place.

A part of the film material 200 is fixed to the base material 100. The base material 100 and the film material 200 are fixed to the installation target surface on which the film antenna 10 is installed. The base material 100 and the film material 200 are adhered to, for example, the surface to be installed.

The film material 200 may include an antenna 500 and a wiring 502 that electrically connects the antenna 500 and the connector 400. The film material 200 may be made of a transparent material and may not interfere with the landscape when installed on glass or the like. The wiring 502 may be as thin as not visible from the viewpoint of aesthetics when the film antenna 10 is installed.

FIG. 4 schematically shows an example of a YY cross section of the film antenna 10. The base material 100 includes a lower member 300, a middle member 310, and an upper member 320.

The lower member 300 is installed on the installation target surface on which the film antenna 10 is installed. For example, the lower surface 302 of the lower member 300 is adhered to the surface to be installed. The method of adhering the lower surface 302 to the installation target surface may be any method. Examples of the bonding method include bonding using an adhesive and double-sided tape, and the lower surface 302 itself having adhesiveness. The lower surface 302 may be installed on the surface to be installed by a method other than adhesion. For example, when the installation target surface is made of a material that can be screwed, the lower member 300 is screwed to the installation target surface.

A part of the film material 200 is arranged on the upper surface 304 of the lower member 300. A part of the film material 200 may be fixed to the upper surface 304. For example, a part of the film material 200 may be adhered to the upper surface 304. The method of adhering the film material 200 to the upper surface 304 of a part thereof may be any method. Examples of the bonding method include bonding using an adhesive and double-sided tape, the upper surface 304 itself having adhesiveness, the film material 200 itself having adhesiveness, and the like. A part of the film material 200 may be fixed to the upper surface 304 by a method other than adhesion. For example, a part of the film material 200 is screwed to the upper surface 304 or the like. Further, a part of the film material 200 may be fixed to the upper surface 304 by the pressure of the middle member 310 on the lower member 300. The method of fixing the film material 200 to the upper surface 304 is not limited to the above example as long as it does not break the wiring contained in the film material 200.

The middle member 310 may be arranged on a part of the film material 200. The middle member 310 may include a connector 400 and wiring that electrically connects the connector 400 and the antenna of the film material 200.

The upper member 320 may be arranged on the middle member 310. The upper member 320 may have a shape that covers the middle member 310. The upper member 320 may have a shape that covers the side surface side of the middle member 310. The upper member 320 may be fixed to the lower member 300. 3 and 4 show an example in which the upper member 320 is fixed to the lower member 300 by the fastener 30, but the fixing method of the upper member 320 to the lower member 300 is not limited to this. For example, the upper member 320 may be adhered to the lower member 300. The upper member 320 does not have to have a shape that covers the middle member 310. Further, the upper member 320 does not have to be fixed to the lower member 300.

FIG. 5 schematically shows an example of a ZZ cross section of the film antenna 10. The film material 200 has a joining portion 202 joined to the base material 100 and a protruding portion 204 protruding from the base material 100. The joint portion 202 may be an example of the first portion of the film material 200. The protruding portion 204 may be an example of the second portion of the film material 200.

The middle member 310 has a connector 400 and a wiring 402 that electrically connects the connector 400 and the antenna 500. In FIG. 5, the wiring 402 is connected to the wiring 502 of the antenna 500 on the lower member 300.

At least a part of the joint portion 202 of the film material 200 is inclined. In the example shown in FIG. 5, the joint portion 202 is partially arranged on the lower member 300 and partially inclined. In the base material 100 shown in FIG. 5, the lower member 300 does not extend to the end of the base material 100 on which the film material 200 protrudes, and has a shape that is interrupted in the middle, so that the lower member 300 is one of the film materials 200. The part is configured to be inclined. As shown in FIG. 5, the film material 200 may have an inclined portion on the base material 100 side with respect to the boundary between the joint portion 202 and the protruding portion 204.

In this way, by shortening the length of the lower member 300 in the direction in which the film material 200 protrudes as compared with the conventional case, the position where the film material 200 is inclined is not outside the base material 100 but at the position where the film material 200 is tilted. It can be in the base material 100. As a result, the gap can be hidden in the base material 100, and the heat insulating function of the lower member 300 can be maintained to some extent, and the mixing of dust, foreign matter, and the like can be suppressed.

The upper member 320 shown in FIG. 5 has a cover portion 322. The cover portion 322 may cover one end of the middle member 310, and the end portion may be arranged at the boundary between the joint portion 202 and the protruding portion 204. By locating the end portion of the cover portion 322 at the boundary between the joint portion 202 and the protruding portion 204, it is possible to reduce the possibility that a gap is formed between the film material 200 and the installation target surface. The upper member 320 does not have to have the cover portion 322.

The material of the lower member 300 may be any material as long as it can suppress the heat generated in the middle member 310 from being transferred to the installation target surface as much as possible. The lower member 300 may be a heat-resistant member. By using the lower member 300 as a heat-resistant member, the amount of heat transferred from the middle member 310 to the surface to be installed can be significantly reduced, or the heat can be prevented from being transferred. The lower member 300 and the upper member 320 may be made of the same material.

The lower member 300, the upper member 320, and the middle member 310 may be made of different materials. For example, the material of the lower member 300 and the upper member 320 is a resin such as polyvinyl chloride (PVC) and ABS resin, and the material of the middle member 310 is a resin. The materials of the lower member 300, the middle member 310, and the upper member 320 may all be different. The materials of the lower member 300, the middle member 310, and the upper member 320 may all be the same.

The lower member 300 may be made of an elastic material at the end of the upper surface 304 on the side where the protruding portion 204 protrudes. As a result, the pressure applied to the film material 200 by the end portion of the lower member 300 can be reduced, and the possibility that the wiring 502 in the film material 200 is damaged can be reduced. Examples of elastic materials include, but are not limited to, rubber.

FIG. 6 schematically shows another example of the base material 100. Here, the points different from the base material 100 shown in FIG. 5 will be mainly described. The lower member 300 exemplified in FIG. 6 includes a base portion 306 and an inclined portion 307. The base 306 has a plate shape, and the inclined portion 307 extends from the base 306. For example, the base 306 has a rectangular parallelepiped shape. In the example shown in FIG. 6, the inclined portions of the joint portion 202 of the film material 200 are all arranged on the lower member 300. The lower member 300 shown in FIG. 6 has a larger volume and a slightly more complicated shape than the lower member 300 shown in FIG. 5, but can eliminate gaps in the film material 200. The lower member 300 may be made of the same material as a whole, or may be made of a different material in part. For example, the inclined portion 307 may be made of a material different from that of the base portion 306. Further, the inclined portion 307 may be made of the same material as the base portion 306.

FIG. 7 schematically shows another example of the base material 100. Here, the points different from the base material 100 shown in FIG. 5 will be mainly described. The lower member 300 illustrated in FIG. 7 is entirely inclined from the upper member 320 toward the installation target surface. The joint portion 202 of the film material 200 is entirely arranged on the lower member 300. The film material 200 arranged on the lower member 300 may be in contact with the installation target surface at the end of the base material 100. The lower member 300 shown in FIG. 7 can reduce the angle at which the film material 200 is bent as compared with the lower member 300 shown in FIG. 5, and can improve the quality of the signal propagating through the wiring 502.

FIG. 8 schematically shows another example of the base material 100. Here, the points different from the base material 100 shown in FIG. 5 will be mainly described. In this example, the lower member 300 has a curved end on the upper surface 304 side and the side on which the film material 200 protrudes. The curved portion may be chamfered and loosened, for example. FIG. 8 illustrates a case where the lower member 300 has a chamfered portion R. As a result, the pressure applied to the film material 200 by the end portion of the lower member 300 can be reduced, and the possibility that the wiring 502 in the film material 200 is damaged can be reduced. In the lower member 300, only the material of the curved portion may be made of an elastic material such as rubber.

9 and 10 schematically show another example of the lower member 300. FIG. 9 schematically shows the shape of the lower member 300 as seen from the upper surface side, and FIG. 10 schematically shows the shape of the lower member 300 as seen from the side surface side. In FIGS. 9 and 10, the portion fixed to the upper member 320 is not shown.

The lower member 300 exemplified in FIGS. 9 and 10 is a film from the base 306, the stretched portion 308 stretched from one end side of the base 306 in the direction in which the film material 200 protrudes, and the other end side of the base 306. It has a stretched portion 309 stretched in a direction in which the material 200 protrudes.

The stretched portion 308 and the stretched portion 309 are inclined in the stretching direction, and the inclined portion of the film material 200 may be arranged on the upper surface. The lower member 300 illustrated in FIG. 6 has an inclined portion 307 extending over the entire width of the base 306, whereas the lower member 300 exemplified in FIGS. 9 and 10 has both ends of the base 306 instead of the inclined portion 307. It has two stretched portions 308 and 309 that stretch to the portion side. By providing the stretched portion 308 and the stretched portion 309 on both ends of the base portion 306, the volume of the lower member 300 can be reduced while preventing dust and foreign matter from entering from the outside.

FIG. 11 schematically shows another example of the lower member 300. Here, the differences from the lower member 300 exemplified in FIGS. 9 and 10 will be mainly described. FIG. 11 schematically shows the shape of the lower member 300 as viewed from the upper surface side. The lower member 300 shown in FIG. 11 has a corrugated shape on the side on which the film material 200 protrudes. The shape of the lower member 300 on the side where the film material 200 protrudes is not limited to this, and may be another shape.

FIG. 12 schematically shows another example of the film antenna 10. Here, the points different from the film antenna 10 shown in FIG. 5 will be mainly described. In the film antenna 10 shown in FIG. 12, the joint portion 202 of the film material 200 is not arranged on the upper surface of the lower member 300, the bent portion 214, and the portion 212 arranged on the upper surface of the lower member 300. Includes a portion 216 arranged on the installation target surface. The wiring 402 is a portion 216 of the joint portion 202, is connected to the wiring 502, and is electrically connected to the antenna 500.

By configuring the wiring 402 and the wiring 502 to be connected at the portion 216 of the joint portion 202 in this way, the wiring 502 can be prevented from being arranged at the portion 212 of the joint portion 202. Thereby, the degree of freedom of deformation of the film material 200 can be increased. In the example shown in FIG. 12, the film material 200 is arranged along the shape of the lower member 300. As a result, the resistance of the wiring 502 at the bent portion 214 does not increase, and the wiring 502 at the bent portion 214 is not damaged, so that a gap is not formed between the film material 200 and the installation target surface.

FIG. 13 schematically shows another example of the film antenna 10. Here, the points different from the film antenna 10 shown in FIG. 5 will be mainly described.

The film material 200 has an inclusion portion 206 contained in the base material 100 and a protruding portion 208 protruding from the base material 100. In the example shown in FIG. 13, the inclusion portion 206 of the film material 200 is not inclined. The inclusion portion 206 may be an example of the first portion of the film material 200. The protruding portion 208 may be an example of the second portion of the film material 200.

The lower member 300 is an inclined portion 332 in which the inclusion portion 206 of the film material 200 is arranged on the upper surface 304 and an inclined portion 334 protruding from the base portion 332, and the inclined portion 208 in which the protruding portion 208 of the film material 200 is arranged is arranged. It has a portion 334 and. The inclined portion 334 may be inclined from the height of the upper surface of the base portion 332 to the height of the lower surface of the base portion 332. The base portion 332 and the inclined portion 334 have a lower surface to be installed on the installation target surface on which the film antenna 10 is installed.

The middle member 310 is arranged on the inclusion portion 206 of the film material 200. The middle member 310 has a connector 400 and a wiring 402.

The upper member 320 is arranged on the middle member 310. The upper member 320 has a cover portion 322 that covers one end of the middle member 310 and may have an end portion arranged at a boundary between the inclusion portion 206 and the projecting portion 208. The upper member 320 does not have to have the cover portion 322.

The film antenna 10 illustrated in FIG. 13 prevents the lower member 300 from having a gap between the film material 200 and the installation target surface by having the inclined portion 334.

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. It will be apparent to those skilled in the art that various changes or improvements can be made to the above embodiments. It is clear from the description of the claims that the form with such changes or improvements may be included in the technical scope of the present invention.

The order of execution of each process such as operation, procedure, step, and step in the apparatus, system, program, and method shown in the claims, specification, and drawings is particularly "before" and "prior to". It should be noted that it can be realized in any order unless the output of the previous process is used in the subsequent process. Even if the scope of claims, the specification, and the operation flow in the drawings are explained using "first", "next", etc. for convenience, it means that it is essential to carry out in this order. It's not a thing.

10 film antenna, 30 fasteners, 60 film antenna, 100 base material, 200 film material, 202 joint part, 204 protrusion part, 206 inclusion part, 208 protrusion part, 300 lower member, 302 lower surface, 304 upper surface, 306 base, 307 Inclined part, 308 extension part, 309 extension part, 310 middle member, 320 upper member, 322 cover part, 332 base part, 334 inclined part, 400 connector, 402 wiring, 500 antenna, 502 wiring, 600 base material, 610 lower member, 620 middle member, 630 upper member, 700 film material, 710 antenna, 712 wiring, 800 connector, 802 wiring

Claims (15)

It ’s a film antenna.
With the base material
It comprises a film material containing an antenna, which has a first portion bonded to the substrate and a second portion protruding from the substrate.
The base material is
A lower member having a lower surface on which at least a part of the first portion of the film material is arranged on the upper surface and which is installed on the installation target surface on which the film antenna is installed.
The middle member arranged on the first portion of the film material and
The upper member arranged on the middle member and
The connector arranged on the middle member and
Wiring that electrically connects the connector and the antenna
Have,
The second portion of the film material is a film antenna projecting from the lower end of the base material. It ’s a film antenna.
With the base material
A film material containing an antenna having a first portion bonded to the substrate and a second portion protruding from the substrate.
Equipped with
The base material is
A lower member having a lower surface on which at least a part of the first portion of the film material is arranged on the upper surface and which is installed on the installation target surface on which the film antenna is installed.
The middle member arranged on the first portion of the film material and
With the upper member arranged on the middle member
Have,
The second portion of the film material protrudes from the lower end of the base material and is projected from the lower end.
The first portion of the film material is a film antenna, at least partially inclined. It ’s a film antenna.
With the base material
A film material containing an antenna having a first portion bonded to the substrate and a second portion protruding from the substrate.
Equipped with
The base material is
A lower member having a lower surface on which at least a part of the first portion of the film material is arranged on the upper surface and which is installed on the installation target surface on which the film antenna is installed.
The middle member arranged on the first portion of the film material and
With the upper member arranged on the middle member
Have,
The second portion of the film material protrudes from the lower end of the base material and is projected from the lower end.
A film antenna in which all the inclined portions of the first portion of the film material are arranged on the lower member. The film antenna according to any one of claims 1 to 3 , wherein the lower member has a curved end on the upper surface side on the side on which the film material protrudes. The lower member has a base portion, a first stretched portion stretched in a direction in which the film material protrudes from one end side of the base portion, and a first stretched portion stretched in a direction in which the film material protrudes from the other end side of the base portion. The film antenna according to claim 1 , further comprising a stretched second stretched portion. The film according to claim 5 , wherein the first stretched portion and the second stretched portion are inclined in the stretching direction, and the inclined portion of the first portion of the film material is arranged on the upper surface. antenna. It ’s a film antenna.
With the base material
A film material containing an antenna having a first portion bonded to the substrate and a second portion protruding from the substrate.
Equipped with
The base material is
A lower member having a lower surface on which at least a part of the first portion of the film material is arranged on the upper surface and which is installed on the installation target surface on which the film antenna is installed.
The middle member arranged on the first portion of the film material and
With the upper member arranged on the middle member
Have,
The second portion of the film material protrudes from the lower end of the base material and is projected from the lower end.
A film antenna in which the first portion of the film material is entirely arranged on the lower member, and the lower member is entirely inclined from the upper member toward the installation target surface. The first portion of the film material includes a portion arranged on the upper surface of the lower member and a portion not arranged on the upper surface of the lower member but arranged on the installation target surface. ,
The first aspect of the present invention, wherein the wiring of the base material is a portion arranged on the installation target surface, is connected to the wiring arranged in the film material, and is electrically connected to the antenna. Film antenna. It ’s a film antenna.
With the base material
A film material containing an antenna having a first portion bonded to the substrate and a second portion protruding from the substrate.
Equipped with
The base material is
A lower member having a lower surface on which at least a part of the first portion of the film material is arranged on the upper surface and which is installed on the installation target surface on which the film antenna is installed.
The middle member arranged on the first portion of the film material and
With the upper member arranged on the middle member
Have,
The second portion of the film material protrudes from the lower end of the base material and is projected from the lower end.
The lower member is a film antenna on the upper surface side, the end portion of which the film material protrudes is made of an elastic material. One of claims 1 to 9 , wherein the upper member covers one end of the middle member and has a cover portion having an end portion arranged at a boundary between the first portion and the second portion of the film material. The film antenna described in the section. It ’s a film antenna.
With the base material
A film material containing an antenna having a first portion bonded to the substrate and a second portion protruding from the substrate.
Equipped with
The base material is
A lower member having a lower surface on which at least a part of the first portion of the film material is arranged on the upper surface and which is installed on the installation target surface on which the film antenna is installed.
The middle member arranged on the first portion of the film material and
With the upper member arranged on the middle member
Have,
The second portion of the film material protrudes from the lower end of the base material and is projected from the lower end.
The lower member is a film antenna which is a heat-resistant member. It ’s a film antenna.
With the base material
A film material containing an antenna, which has a first portion included in the base material and a second portion protruding from the base material, is provided.
The base material is
A lower member having a base portion on which the first portion of the film material is arranged and an inclined portion protruding from the base portion and having the inclined portion on which the second portion of the film material is arranged. When,
The middle member arranged on the first portion of the film material and
The upper member arranged on the middle member and
Has a film antenna. The connector arranged on the middle member and
The film antenna according to claim 12 , further comprising a wiring for electrically connecting the connector and the antenna. The film antenna according to claim 12 or 13 , wherein the inclined portion is inclined from the height of the upper surface of the base portion to the height of the lower surface of the base portion. The film antenna according to any one of claims 12 to 14 , wherein the base portion and the inclined portion have a lower surface installed on an installation target surface on which the film antenna is installed.

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