JP2022018233A - Window pane mounting structure - Google Patents

Window pane mounting structure Download PDF

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JP2022018233A
JP2022018233A JP2020121190A JP2020121190A JP2022018233A JP 2022018233 A JP2022018233 A JP 2022018233A JP 2020121190 A JP2020121190 A JP 2020121190A JP 2020121190 A JP2020121190 A JP 2020121190A JP 2022018233 A JP2022018233 A JP 2022018233A
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Prior art keywords
conductor
window glass
mounting structure
structure according
dielectric
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Inventor
聡史 船津
Satoshi Funatsu
次郎 田村
Jiro Tamura
慶彦 江川
Yoshihiko Egawa
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AGC Inc
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Asahi Glass Co Ltd
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Priority to JP2020121190A priority Critical patent/JP2022018233A/en
Priority to DE102021003539.9A priority patent/DE102021003539A1/en
Publication of JP2022018233A publication Critical patent/JP2022018233A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1271—Supports; Mounting means for mounting on windscreens
    • H01Q1/1278—Supports; Mounting means for mounting on windscreens in association with heating wires or layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10788—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing ethylene vinylacetate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1271—Supports; Mounting means for mounting on windscreens
    • H01Q1/1285—Supports; Mounting means for mounting on windscreens with capacitive feeding through the windscreen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing

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  • Details Of Aerials (AREA)
  • Waveguide Aerials (AREA)

Abstract

To provide a window pane mounting structure capable of securing antenna gain in a bandwidth from a VHF band to a UHF band.SOLUTION: A window pane fitted to a window frame 66 formed on a vehicle body includes: a glass plate 10; a dielectric body having a first surface opposite the glass plate, and second surface opposite the first surface; a planar conductor 50 and an internal conductor 70 arranged between the glass plate and the first surface; and a power feeding electrode 35 provided on the second surface side. The window frame has a metal part 63 arranged along an outer edge of the dielectric body on the second surface side with respect to the dielectric body. A grounding electrode 38 which is provided on the metal part or on the second surface side and is electrically connected to the metal part is electrically connected to the planar conductor via the dielectric body. The internal conductor includes: a first internal conductor 71 facing the metal part via the dielectric body in a planar view of the window pane; and a second internal conductor 72 which is electrically connected to the first internal conductor 71 and is approximate to the planar conductor. The power feeding electrode faces the planar conductor via the dielectric body.SELECTED DRAWING: Figure 1

Description

本開示は、窓ガラス取り付け構造に関する。 The present disclosure relates to a window glass mounting structure.

車両用窓ガラスにおいて、熱線反射効果を得るための透明導電性被覆を用いる場合がある。この透明導電性被覆の周縁にあるアンテナスロットに結合するアンテナ給電素子を、透明導電性被覆の両側に配置することによって、ダイバーシティアンテナを実現する技術が知られている（例えば、特許文献１，２参照）。また、平面状導体にガラス板を介して対向する給電電極により、ＶＨＦ（Very High Frequency）帯とＵＨＦ（Ultra High Frequency）帯の電波を受信する技術が知られている（例えば、特許文献３参照）。 In vehicle window glass, a transparent conductive coating may be used to obtain a heat ray reflection effect. A technique for realizing a diversity antenna by arranging antenna feeding elements coupled to antenna slots on the peripheral edge of the transparent conductive coating on both sides of the transparent conductive coating is known (for example, Patent Documents 1 and 2). reference). Further, there is known a technique of receiving radio waves in the VHF (Very High Frequency) band and the UHF (Ultra High Frequency) band by means of a feeding electrode facing a planar conductor via a glass plate (see, for example, Patent Document 3). ).

特表２０１３－５４０４０６号公報Special Table 2013-540406 Gazette 特表２０１３－５４４０４５号公報Special Table 2013-544045 Gazette 特開２０２０－０２２１５１号公報Japanese Unexamined Patent Publication No. 2020-022151

しかしながら、透明導電性被覆のような平面状導体を利用してアンテナを実現する場合、ＶＨＦ帯からＵＨＦ帯までの帯域におけるアンテナ利得の確保が容易ではなかった。 However, when the antenna is realized by using a planar conductor such as a transparent conductive coating, it is not easy to secure the antenna gain in the band from the VHF band to the UHF band.

本開示は、ＶＨＦ帯からＵＨＦ帯までの帯域におけるアンテナ利得を確保可能な窓ガラス取り付け構造を提供する。 The present disclosure provides a windowpane mounting structure capable of ensuring antenna gain in the band from the VHF band to the UHF band.

本開示は、
車体に形成される窓枠と、前記窓枠に取り付けられる窓ガラスと、を備え、
前記窓ガラスは、
ガラス板と、
前記ガラス板に対向する側の第１面と、前記第１面とは反対側の第２面とを有する誘電体と、
前記ガラス板と前記第１面との間に配置される平面状導体と、
前記ガラス板と前記第１面との間に配置される内部導体と、
前記第２面の側に設けられる給電電極と、を備え、
前記窓枠は、前記誘電体に対して前記第２面の側で前記誘電体の外縁に沿って配置される金属部を有し、
前記金属部は、前記誘電体を介して前記平面状導体に電気的に接続され、又は、前記金属部に電気的に接続される接地電極が前記第２面の側に設けられ、前記接地電極は、前記誘電体を介して前記平面状導体に電気的に接続され、
前記内部導体は、前記窓ガラスの平面視で前記誘電体を介して前記金属部に対向する第１内部導体と、前記第１内部導体に電気的に接続され且つ前記平面状導体に近接する第２内部導体と、を含み、
前記給電電極は、前記誘電体を介して前記平面状導体に対向し、ＶＨＦ帯からＵＨＦ帯までの帯域に含まれる電波の受信信号を出力する、窓ガラス取り付け構造を提供する。 This disclosure is
A window frame formed on the vehicle body and a window glass attached to the window frame are provided.
The window glass is
With a glass plate
A dielectric having a first surface on the side facing the glass plate and a second surface on the side opposite to the first surface.
A planar conductor arranged between the glass plate and the first surface,
An internal conductor arranged between the glass plate and the first surface,
A feeding electrode provided on the side of the second surface is provided.
The window frame has a metal portion arranged along the outer edge of the dielectric on the side of the second surface with respect to the dielectric.
The metal portion is provided with a grounding electrode electrically connected to the planar conductor via the dielectric or electrically connected to the metal portion on the side of the second surface, and the grounding electrode is provided. Is electrically connected to the planar conductor via the dielectric.
The inner conductor is a first inner conductor that faces the metal portion via the dielectric in a plan view of the window glass, and is electrically connected to the first inner conductor and is close to the planar conductor. Including 2 internal conductors
The feeding electrode provides a window glass mounting structure that faces the planar conductor via the dielectric and outputs a reception signal of radio waves included in the band from the VHF band to the UHF band.

本開示によれば、ＶＨＦ帯からＵＨＦ帯までの帯域におけるアンテナ利得を確保可能な窓ガラス取り付け構造を提供できる。 According to the present disclosure, it is possible to provide a window glass mounting structure capable of ensuring an antenna gain in the band from the VHF band to the UHF band.

第１実施形態における窓ガラス取り付け構造の一構成例を窓ガラスの平面視で示す図である。It is a figure which shows one configuration example of the window glass mounting structure in 1st Embodiment in a plan view of a window glass. 第１実施形態における窓ガラス取り付け構造の一構成例の断面Ａ－Ａ（図１参照）を示す図である。It is a figure which shows the cross section AA (see FIG. 1) of one structural example of the window glass mounting structure in 1st Embodiment. 第２実施形態における窓ガラス取り付け構造の一構成例の断面図である。It is sectional drawing of one structural example of the window glass mounting structure in 2nd Embodiment. 第３実施形態における窓ガラス取り付け構造の一構成例の断面図である。It is sectional drawing of one structural example of the window glass mounting structure in 3rd Embodiment. 第４実施形態における窓ガラス取り付け構造の一構成例の平面図である。It is a top view of the structural example of the window glass mounting structure in 4th Embodiment. 各実施形態における窓ガラス取り付け構造を平面視で示す概略図である。It is a schematic diagram which shows the window glass attachment structure in each embodiment in a plan view. 長さＬ２に対するアンテナ利得を実測した結果の一例を示す図である。It is a figure which shows an example of the result of having measured the antenna gain with respect to the length L2 . 距離ｄに対するアンテナ利得を実測した結果の一例を示す図である。It is a figure which shows an example of the result of having measured the antenna gain with respect to the distance d. 幅ｗに対するアンテナ利得を実測した結果の一例を示す図である。It is a figure which shows an example of the result of having measured the antenna gain with respect to the width w. ＬＰ１とＬＰ２を等長で変化させたときのアンテナ利得を実測した結果の一例を示す図である。It is a figure which shows an example of the result of having measured the antenna gain when L P1 and L P2 are changed by the same length.

以下、図面を参照して、本開示に係る実施形態について説明する。なお、理解の容易のため、図面における各部の縮尺は、実際とは異なる場合がある。平行、直角、直交、水平、垂直、上下、左右などの方向には、実施形態の効果を損なわない程度のずれが許容される。角部の形状は、直角に限られず、弓状に丸みを帯びてもよい。Ｘ軸方向、Ｙ軸方向、Ｚ軸方向は、それぞれ、Ｘ軸に平行な方向、Ｙ軸に平行な方向、Ｚ軸に平行な方向を表す。Ｘ軸方向とＹ軸方向とＺ軸方向は、互いに直交する。ＸＹ平面、ＹＺ平面、ＺＸ平面は、それぞれ、Ｘ軸方向及びＹ軸方向に平行な仮想平面、Ｙ軸方向及びＺ軸方向に平行な仮想平面、Ｚ軸方向及びＸ軸方向に平行な仮想平面を表す。"対向する"とは、全部が対向する形態に限られず、一部が対向する形態を含んでよい。 Hereinafter, embodiments according to the present disclosure will be described with reference to the drawings. For ease of understanding, the scale of each part in the drawing may differ from the actual scale. In the directions of parallel, right angle, orthogonal, horizontal, vertical, up / down, left / right, etc., a deviation that does not impair the effect of the embodiment is allowed. The shape of the corner portion is not limited to a right angle, and may be rounded in a bow shape. The X-axis direction, the Y-axis direction, and the Z-axis direction represent a direction parallel to the X-axis, a direction parallel to the Y-axis, and a direction parallel to the Z-axis, respectively. The X-axis direction, the Y-axis direction, and the Z-axis direction are orthogonal to each other. The XY plane, YZ plane, and ZX plane are a virtual plane parallel to the X-axis direction and the Y-axis direction, a virtual plane parallel to the Y-axis direction and the Z-axis direction, and a virtual plane parallel to the Z-axis direction and the X-axis direction, respectively. Represents. The term "opposing" is not limited to a form in which all face each other, but may include a form in which some of them face each other.

本実施形態では、Ｘ軸方向、Ｙ軸方向、Ｚ軸方向は、それぞれ、ガラス板の左右方向（横方向）、ガラス板の上下方向（縦方向）、ガラス板の表面に直角な方向（法線方向とも称する）を表す。Ｘ軸方向とＹ軸方向とＺ軸方向は、互いに直交する。 In the present embodiment, the X-axis direction, the Y-axis direction, and the Z-axis direction are the left-right direction (horizontal direction) of the glass plate, the vertical direction (vertical direction) of the glass plate, and the directions perpendicular to the surface of the glass plate (method). Also called the line direction). The X-axis direction, the Y-axis direction, and the Z-axis direction are orthogonal to each other.

本実施形態における窓ガラス取り付け構造の窓ガラスの例として、車両の後部に取り付けられるリアガラス、車両の前部に取り付けられるフロントガラス、車両の側部に取り付けられるサイドガラス、車両の天井部に取り付けられるルーフガラスなどがある。窓ガラスは、これらの例に限られない。 As an example of the window glass of the window glass mounting structure in the present embodiment, the rear glass mounted on the rear portion of the vehicle, the windshield mounted on the front portion of the vehicle, the side glass mounted on the side portion of the vehicle, and the roof mounted on the ceiling portion of the vehicle. There is glass and so on. Windowpanes are not limited to these examples.

図１は、第１実施形態における窓ガラス取り付け構造の一構成例を窓ガラスの平面視で示す図である。図１に示す窓ガラス取り付け構造２０１は、車体に形成される窓枠６６と、窓枠６６に取り付けられる窓ガラス１０１とを備える。図１は、窓枠６６に取り付けた窓ガラス１０１を車内側からの視点で示す平面図であるが、図面の視認性の向上のため、窓枠６６を二点鎖線で簡略的に示している。 FIG. 1 is a diagram showing a configuration example of a window glass mounting structure according to the first embodiment in a plan view of the window glass. The window glass mounting structure 201 shown in FIG. 1 includes a window frame 66 formed on the vehicle body and a window glass 101 attached to the window frame 66. FIG. 1 is a plan view showing the window glass 101 attached to the window frame 66 from the viewpoint from the inside of the vehicle, but the window frame 66 is simply shown by a two-dot chain line in order to improve the visibility of the drawing. ..

図２は、第１実施形態における窓ガラス取り付け構造の一構成例の断面Ａ－Ａ（図１参照）を示す図である。図２において、車体６２に形成される窓枠６６に窓ガラス１０１が取り付けられた状態において、Ｚ軸方向の正側は、車外側を表し、Ｚ軸方向の負側は、車内側を表す。窓ガラス１０１は、車外側に配置されるガラス板１０と、車内側に配置されるガラス板２０とが、中間膜４０を介して貼り合わされる合わせガラスの構造を有する。 FIG. 2 is a diagram showing a cross section AA (see FIG. 1) of a configuration example of the window glass mounting structure according to the first embodiment. In FIG. 2, in a state where the window glass 101 is attached to the window frame 66 formed on the vehicle body 62, the positive side in the Z-axis direction represents the outside of the vehicle, and the negative side in the Z-axis direction represents the inside of the vehicle. The window glass 101 has a laminated glass structure in which a glass plate 10 arranged on the outside of the vehicle and a glass plate 20 arranged on the inside of the vehicle are bonded to each other via an interlayer film 40.

窓ガラス１０１は、例えば、ガラス板２０の主面２２の周縁部とフランジ状の窓枠６６とがウレタン樹脂等の接着剤６５で接着することより、窓枠６６に取り付けられる。窓枠６６は、Ｚ軸方向からの窓ガラス１０１の平面視で主面２２の周縁部の少なくとも一部に対向する金属部６３を有する。後述の内部導体７０は、ガラス板２０を介しての容量結合によって金属部６３に接地される。金属部６３の内縁６４は、Ｚ軸方向からの窓ガラス１０１の平面視で、窓ガラス１０１によって覆われる開口を形成する。 The window glass 101 is attached to the window frame 66, for example, by adhering the peripheral edge of the main surface 22 of the glass plate 20 and the flange-shaped window frame 66 with an adhesive 65 such as urethane resin. The window frame 66 has a metal portion 63 facing at least a part of the peripheral edge portion of the main surface 22 in a plan view of the window glass 101 from the Z-axis direction. The internal conductor 70, which will be described later, is grounded to the metal portion 63 by capacitive coupling via the glass plate 20. The inner edge 64 of the metal portion 63 forms an opening covered by the window glass 101 in a plan view of the window glass 101 from the Z-axis direction.

窓ガラス１０１は、車外側に配置されるガラス板１０と、車内側に配置されるガラス板２０と、合わせガラスの内部に配置される平面状導体５０とを備える。 The window glass 101 includes a glass plate 10 arranged on the outside of the vehicle, a glass plate 20 arranged on the inside of the vehicle, and a planar conductor 50 arranged inside the laminated glass.

ガラス板１０及びガラス板２０は、透明な板状の誘電体である。ガラス板１０及びガラス板２０のいずれか一方又は両方は、半透明でもよい。ガラス板１０は、第１ガラス板の一例であり、ガラス板２０は、第２ガラス板の一例である。なお、ガラス板２０の位置に配置される板状体は、ガラス板に限らず、透明樹脂基板などの誘電体でもよい。 The glass plate 10 and the glass plate 20 are transparent plate-shaped dielectrics. Either or both of the glass plate 10 and the glass plate 20 may be translucent. The glass plate 10 is an example of a first glass plate, and the glass plate 20 is an example of a second glass plate. The plate-shaped body arranged at the position of the glass plate 20 is not limited to the glass plate, and may be a dielectric such as a transparent resin substrate.

ガラス板１０は、主面１１と、Ｚ軸方向において主面１１とは反対側の主面１２とを有する。主面１１は、車内側の表面を表し、主面１２は、車外側の表面を表す。特に、主面１２は、合わせガラスの車外側の外面に相当する。 The glass plate 10 has a main surface 11 and a main surface 12 opposite to the main surface 11 in the Z-axis direction. The main surface 11 represents the inner surface of the vehicle, and the main surface 12 represents the outer surface of the vehicle. In particular, the main surface 12 corresponds to the outer surface of the outside of the laminated glass.

ガラス板２０は、ガラス板１０の主面１１に対向する側の主面２１と、Ｚ軸方向において主面２１とは反対側の主面２２とを有する。主面２１は、車外側の表面を表し、主面２２は、車内側の表面を表す。特に、主面２２は、合わせガラスの車内側の外面に相当する。主面２１は、第１面の一例であり、主面２２は、第２面の一例である。 The glass plate 20 has a main surface 21 on the side facing the main surface 11 of the glass plate 10 and a main surface 22 on the side opposite to the main surface 21 in the Z-axis direction. The main surface 21 represents the outer surface of the vehicle, and the main surface 22 represents the inner surface of the vehicle. In particular, the main surface 22 corresponds to the outer surface of the inside of the laminated glass. The main surface 21 is an example of the first surface, and the main surface 22 is an example of the second surface.

中間膜４０は、誘電性を有し、ガラス板１０とガラス板２０との間に介在する透明又は半透明な誘電体である。ガラス板１０とガラス板２０とは、中間膜４０によって接合される。中間膜４０は、例えば、熱可塑性のポリビニルブチラール（ＰＶＢ）、エチレン酢酸ビニル共重合体（ＥＶＡ）等が挙げられる。なお、中間膜４０の比誘電率は、２．４以上３．５以下が好ましい。中間膜４０は、ガラス板１０と平面状導体５０との間に配置されてもよいし、平面状導体５０とガラス板２０との間に配置されてもよいし、ガラス板１０と平面状導体５０との間と、平面状導体５０とガラス板２０との間との両方に配置されてもよい。 The interlayer film 40 has a dielectric property and is a transparent or translucent dielectric material interposed between the glass plate 10 and the glass plate 20. The glass plate 10 and the glass plate 20 are joined by an interlayer film 40. Examples of the interlayer film 40 include thermoplastic polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer (EVA) and the like. The relative permittivity of the interlayer film 40 is preferably 2.4 or more and 3.5 or less. The interlayer film 40 may be arranged between the glass plate 10 and the planar conductor 50, may be arranged between the planar conductor 50 and the glass plate 20, or may be arranged between the glass plate 10 and the planar conductor. It may be arranged both between 50 and between the planar conductor 50 and the glass plate 20.

図１，２の窓ガラス取り付け構造２０１は、平面状導体５０が、ガラス板１０とガラス板２０との間に配置される形態を示す。図１，２に示す実施形態では、平面状導体５０は、ガラス板１０の主面１１とガラス板２０の主面２１との間に設けられており、分離されていない一つの導体面により形成されている。 The window glass mounting structure 201 of FIGS. 1 and 2 shows a form in which the planar conductor 50 is arranged between the glass plate 10 and the glass plate 20. In the embodiment shown in FIGS. 1 and 2, the planar conductor 50 is provided between the main surface 11 of the glass plate 10 and the main surface 21 of the glass plate 20, and is formed by one conductor surface that is not separated. Has been done.

図２に示す窓ガラス取り付け構造２０１の例では、平面状導体５０は、ガラス板１０に対して主面１１の側にある導電層である。平面状導体５０は、主面１１に接する導体でもよいし、主面１１との間に透明又は半透明の不図示の誘電体を挟んで配置されてもよい。平面状導体５０は、透明でも半透明でもよい。平面状導体５０の具体例として、Ａｇ（銀）膜などの金属膜、ＩＴＯ（酸化インジウム・スズ）膜などの金属酸化膜、または導電性微粒子を含む樹脂膜、複数種類の膜を積層した積層体などが挙げられる。平面状導体５０は、ポリエチレンテレフタレートなどの樹脂フィルムに蒸着処理等でコーティングされたものでもよい。 In the example of the window glass mounting structure 201 shown in FIG. 2, the planar conductor 50 is a conductive layer on the side of the main surface 11 with respect to the glass plate 10. The planar conductor 50 may be a conductor in contact with the main surface 11, or may be arranged with a transparent or translucent dielectric (not shown) interposed therebetween. The planar conductor 50 may be transparent or translucent. As a specific example of the planar conductor 50, a metal film such as an Ag (silver) film, a metal oxide film such as an ITO (indium tin oxide) film, a resin film containing conductive fine particles, or a laminate in which a plurality of types of films are laminated. The body etc. can be mentioned. The planar conductor 50 may be a resin film such as polyethylene terephthalate coated with a vapor deposition treatment or the like.

平面状導体５０は、ガラス板１０の主面１１にコートされる導電膜でもよい。導電膜の具体例として、低放射性能を発揮するＬｏｗ－Ｅ（Low Emissivity）膜などの低放射膜が挙げられる。 The planar conductor 50 may be a conductive film coated on the main surface 11 of the glass plate 10. Specific examples of the conductive film include a low emissivity film such as a Low-E (Low Emissivity) film that exhibits low emissivity performance.

低放射とは、放射による伝熱を低減することをいう。Ｌｏｗ－Ｅ膜などの低放射膜は、放射による伝熱を抑制することで、断熱性を確保する。低放射膜は、一般的なものであってよく、例えば、透明誘電体膜、赤外線反射膜、および透明誘電体膜をこの順で含む積層膜であってよい。透明誘電体膜としては、金属酸化物や金属窒化物が代表的である。金属酸化物としては、酸化亜鉛や酸化スズが代表的である。赤外線反射膜としては、金属膜が代表的である。金属膜としては、銀（Ａｇ）が代表的である。ここで、赤外線反射膜は、透明誘電体膜同士の間に、１層以上形成されてよい。 Low emissivity means reducing heat transfer due to radiation. A low emissivity film such as a Low-E film secures heat insulating properties by suppressing heat transfer due to radiation. The low emissivity film may be a general one, and may be, for example, a laminated film containing a transparent dielectric film, an infrared reflective film, and a transparent dielectric film in this order. As the transparent dielectric film, metal oxides and metal nitrides are typical. Typical metal oxides are zinc oxide and tin oxide. As the infrared reflective film, a metal film is typical. As the metal film, silver (Ag) is typical. Here, one or more layers of the infrared reflective film may be formed between the transparent dielectric films.

平面状導体５０は、Ｌｏｗ－Ｅ膜などの低放射膜に限られず、導電性の層であれば、他の機能を有してもよい。例えば、平面状導体５０は、電圧印加による発熱によって、窓ガラス１０１の防氷や防曇などの機能を有するものでもよい。 The planar conductor 50 is not limited to a low radiation film such as a Low-E film, and may have other functions as long as it is a conductive layer. For example, the planar conductor 50 may have functions such as anti-icing and anti-fog of the window glass 101 due to heat generated by applying a voltage.

図１の窓ガラス取り付け構造２０１は、平面状導体５０が、電圧印加による発熱によって、窓ガラス１０１の防氷や防曇などの機能を有する形態を例示する。窓ガラス１０１は、平面状導体５０の一方の端部にフラットワイヤ５４を介して接続される負極５８と、平面状導体５０の他方の端部にフラットワイヤ５３を介して接続される正極５７とを有する。例えば、負極５８は、主面２２の一方の側縁部（この例では、右縁部）に設けられ、正極５７は、主面２２の他方の側縁部（この例では、左縁部）に設けられる。しかし、正極５７及び負極５８は、主面２２の上縁部又は下縁部などの他の位置に配置されてもよい。Ｚ軸方向からの窓ガラス１０１の平面視で、例えば、正極５７は、Ｙ軸方向を長手方向とする矩形状のエレメントであり、負極５８は、Ｙ軸方向を長手方向とする矩形状のエレメントである。しかし、正極５７及び負極５８は、円形や他の多角形などの他の形状でもよい。 The window glass mounting structure 201 of FIG. 1 exemplifies a form in which the planar conductor 50 has functions such as anti-icing and anti-fog of the window glass 101 due to heat generated by applying a voltage. The window glass 101 has a negative electrode 58 connected to one end of the planar conductor 50 via a flat wire 54 and a positive electrode 57 connected to the other end of the planar conductor 50 via a flat wire 53. Has. For example, the negative electrode 58 is provided on one side edge of the main surface 22 (in this example, the right edge), and the positive electrode 57 is on the other side edge of the main surface 22 (in this example, the left edge). It is provided in. However, the positive electrode 57 and the negative electrode 58 may be arranged at other positions such as the upper edge portion or the lower edge portion of the main surface 22. In a plan view of the window glass 101 from the Z-axis direction, for example, the positive electrode 57 is a rectangular element having the Y-axis direction as the longitudinal direction, and the negative electrode 58 is a rectangular element having the Y-axis direction as the longitudinal direction. Is. However, the positive electrode 57 and the negative electrode 58 may have other shapes such as a circle or another polygon.

フラットワイヤ５４は、ガラス板２０の一方の側の外縁２３（この例では、右側の外縁）を迂回して、平面状導体５０の一方の端部と負極５８とを直接結合で電気的に接続する導電性媒体である。フラットワイヤ５３は、ガラス板２０の他方の側の外縁２３（この例では、左側の外縁）を迂回して、平面状導体５０の他方の端部と正極５７とを直接結合で電気的に接続する導電性媒体である。 The flat wire 54 bypasses the outer edge 23 on one side of the glass plate 20 (in this example, the outer edge on the right side) and electrically connects one end of the planar conductor 50 and the negative electrode 58 by direct coupling. It is a conductive medium. The flat wire 53 bypasses the outer edge 23 on the other side of the glass plate 20 (in this example, the outer edge on the left side) and electrically connects the other end of the planar conductor 50 and the positive electrode 57 by direct coupling. It is a conductive medium.

直接結合（ＤＣ結合、又は導電性結合とも称される）とは、導電性媒体を介した物理的な接触による結合をいう。フラットワイヤは、導電性媒体の一例である。 Direct coupling (also referred to as DC coupling or conductive coupling) refers to coupling by physical contact via a conductive medium. The flat wire is an example of a conductive medium.

正極５７と負極５８との間に電圧を印加することによって、平面状導体５０における一方の端部と他方の端部との間に電圧が印加されるので、平面状導体５０は発熱し、窓ガラス１０１の防氷や防曇などを実現できる。正極５７と負極５８は主面２２側に露出しているので、平面状導体５０が一対のガラス板１０，２０の間に挟まれて露出していなくても、平面状導体５０の両端部にフラットワイヤ５３，５４を介して電圧を印加できる。 By applying a voltage between the positive electrode 57 and the negative electrode 58, a voltage is applied between one end and the other end of the planar conductor 50, so that the planar conductor 50 generates heat and the window. It is possible to realize anti-icing and anti-fog of glass 101. Since the positive electrode 57 and the negative electrode 58 are exposed on the main surface 22 side, even if the planar conductor 50 is sandwiched between the pair of glass plates 10 and 20 and is not exposed, both ends of the planar conductor 50 are exposed. A voltage can be applied via the flat wires 53 and 54.

平面状導体５０は、外周縁５６を有する。この例では、外周縁５６の形状は、Ｙ軸方向で互いに対向する第１長辺５６ａと第２長辺５６ｂ、及び、Ｘ軸方向で互いに対向する第１短辺５６ｃと第２短辺５６ｄを含む略長方形である。外周縁５６の形状は、略長方形等の略四角形に限られず、台形を含む他の形状でもよい。例えば、外周縁５６の一部は、平面状導体５０の内側に凹んでいてもよいし、平面状導体５０の外側に突き出ていてもよい。外周縁５６の一部は、直線状でも湾曲状でもよい。窓ガラス取り付け構造２０１において、外周縁５６の一部が、平面状導体５０の内側に凹む構成としては、窓ガラス１０１のＸＹ平面において凹部となる領域に、ハイマウントストップランプ等の点灯装置などが配置される構成が挙げられる。 The planar conductor 50 has an outer peripheral edge 56. In this example, the shape of the outer peripheral edge 56 is such that the first long side 56a and the second long side 56b facing each other in the Y-axis direction, and the first short side 56c and the second short side 56d facing each other in the X-axis direction. It is a substantially rectangular shape including. The shape of the outer peripheral edge 56 is not limited to a substantially quadrangle such as a substantially rectangular shape, and may be another shape including a trapezoid. For example, a part of the outer peripheral edge 56 may be recessed inside the planar conductor 50 or may protrude outside the planar conductor 50. A part of the outer peripheral edge 56 may be linear or curved. In the window glass mounting structure 201, a part of the outer peripheral edge 56 is recessed inside the planar conductor 50. The configuration to be arranged is mentioned.

窓ガラス取り付け構造２０１における窓枠６６は、窓ガラス１０１が窓枠６６に取り付けられた状態で、ガラス板２０に対して主面２２の側でガラス板２０の外縁２３に沿って配置される金属部６３を有する。金属部６３は、図１に示すようにガラス板２０の外縁２３の全周に沿って配置されてもよいが、外縁２３の全周のうちの少なくとも一箇所以上の部分に沿って配置されてもよい。 The window frame 66 in the window glass mounting structure 201 is a metal arranged along the outer edge 23 of the glass plate 20 on the side of the main surface 22 with respect to the glass plate 20 in a state where the window glass 101 is attached to the window frame 66. It has a part 63. As shown in FIG. 1, the metal portion 63 may be arranged along the entire circumference of the outer edge 23 of the glass plate 20, but is arranged along at least one portion of the entire circumference of the outer edge 23. May be good.

図１，２の窓ガラス取り付け構造２０１において、窓ガラス１０１は、ガラス板１０と主面２１との間に配置される内部導体７０を備える。内部導体７０は、窓ガラス１０１の平面視でガラス板２０を介して金属部６３に対向する第１内部導体７１と、第１内部導体７１に電気的に接続され且つ平面状導体５０に近接する第２内部導体７２と、を有する。第２内部導体７２は、第１内部導体７１と導電的に接触することで第１内部導体７１に電気的に接続されてもよいし、第１内部導体７１に容量結合で電気的に接続されてもよい。 In the window glass mounting structure 201 of FIGS. 1 and 2, the window glass 101 includes an internal conductor 70 arranged between the glass plate 10 and the main surface 21. The inner conductor 70 is electrically connected to the first inner conductor 71 facing the metal portion 63 via the glass plate 20 in the plan view of the window glass 101, and is close to the planar conductor 50. It has a second inner conductor 72. The second inner conductor 72 may be electrically connected to the first inner conductor 71 by making conductive contact with the first inner conductor 71, or may be electrically connected to the first inner conductor 71 by capacitive coupling. You may.

第1内部導体７１は、ガラス板２０を介して金属部６３に対向することにより金属部６３に容量結合で電気的に接続されるので、内部導体７０は、金属部６３に容量結合で接地される接地導体として機能する。一方、第２内部導体７２は、誘電体（この例では、中間膜４０）を介して平面状導体５０に近接することにより平面状導体５０に容量結合で電気的に接続されるので、平面状導体５０は、内部導体７０に容量結合で接地される。したがって、平面状導体５０は、中間膜４０、内部導体７０及びガラス板２０が介在する容量結合で金属部６３に接地される。 Since the first internal conductor 71 is electrically connected to the metal portion 63 by capacitive coupling by facing the metal portion 63 via the glass plate 20, the internal conductor 70 is grounded to the metal portion 63 by capacitive coupling. Functions as a grounding conductor. On the other hand, since the second inner conductor 72 is electrically connected to the planar conductor 50 by capacitive coupling by being close to the planar conductor 50 via a dielectric (in this example, the interlayer film 40), the second inner conductor 72 is planar. The conductor 50 is grounded to the inner conductor 70 by capacitive coupling. Therefore, the planar conductor 50 is grounded to the metal portion 63 by a capacitive coupling interposed between the interlayer film 40, the inner conductor 70, and the glass plate 20.

窓ガラス取り付け構造２０１において、窓ガラス１０１は、ガラス板２０の主面２２の側に設けられる給電電極３５を備える。給電電極３５は、例えば、主面２２に形成される導体パターンである。図１に示す例では、給電電極３５は、主面２２の一方の側縁部（この例では、右縁部）に設けられ、窓ガラス１０１の平面視で平面状導体５０の外周縁５６の第２短辺５６ｄに沿って延伸する矩形状のエレメントである。しかし、給電電極３５は、主面２２の上縁部又は下限部などの他の位置に配置されてもよく、Ｚ軸方向からの窓ガラス１０１の平面視で円形や他の多角形などの他の形状でもよい。 In the window glass mounting structure 201, the window glass 101 includes a feeding electrode 35 provided on the side of the main surface 22 of the glass plate 20. The feeding electrode 35 is, for example, a conductor pattern formed on the main surface 22. In the example shown in FIG. 1, the feeding electrode 35 is provided on one side edge portion (right edge portion in this example) of the main surface 22, and the outer peripheral edge 56 of the planar conductor 50 is provided in a plan view of the window glass 101. It is a rectangular element extending along the second short side 56d. However, the feeding electrode 35 may be arranged at another position such as the upper edge portion or the lower limit portion of the main surface 22, and may be circular or other polygonal in a plan view of the window glass 101 from the Z-axis direction. It may be in the shape of.

給電電極３５は、ガラス板２０を介して平面状導体５０に対向するので、平面状導体５０は、ガラス板２０が介在する容量結合で給電電極３５に電気的に接続される。一方、平面状導体５０は、内部導体７０及びガラス板２０が少なくとも介在する容量結合で金属部６３に接地される。このように、平面状導体５０が給電電極３５と金属部６３のそれぞれに容量結合で電気的に接続されることで、平面状導体５０の少なくとも一部が放射導体として機能する容量給電型の逆Ｆアンテナが形成される。したがって、平面状導体５０の少なくとも一部がＵＨＦ帯の電波を受信する放射導体として機能する容量給電型の逆Ｆアンテナが形成されるように、給電電極３５及び内部導体７０を配置することで、ＵＨＦ帯におけるアンテナ利得を確保できる。 Since the feeding electrode 35 faces the planar conductor 50 via the glass plate 20, the planar conductor 50 is electrically connected to the feeding electrode 35 by a capacitive coupling in which the glass plate 20 is interposed. On the other hand, the planar conductor 50 is grounded to the metal portion 63 by a capacitive coupling in which the inner conductor 70 and the glass plate 20 are at least interposed. In this way, by electrically connecting the planar conductor 50 to each of the feeding electrode 35 and the metal portion 63 by capacitive coupling, at least a part of the planar conductor 50 functions as a radiation conductor, which is the reverse of the capacitive feeding type. An F antenna is formed. Therefore, by arranging the feeding electrode 35 and the internal conductor 70 so that at least a part of the planar conductor 50 functions as a radiation conductor that receives radio waves in the UHF band, a capacitive feeding type inverted-F antenna is formed. The antenna gain in the UHF band can be secured.

このように、平面状導体５０の少なくとも一部は、ＵＨＦ帯の電波を受信する放射導体として機能するように形成されている。例えば、給電電極３５は、ＵＨＦ帯の周波数で共振可能なエレメント長を有してもよく、当該エレメント長を有することで、ＵＨＦ帯におけるアンテナ利得をより確保できる。 As described above, at least a part of the planar conductor 50 is formed so as to function as a radiation conductor that receives radio waves in the UHF band. For example, the feeding electrode 35 may have an element length that can resonate at a frequency in the UHF band, and by having the element length, the antenna gain in the UHF band can be further secured.

したがって、第１実施形態の窓ガラス取り付け構造２０１によれば、平面状導体５０の少なくとも一部がＵＨＦ帯に含まれる電波を受信することにより得られる受信信号が給電電極３５から出力されるので、ＵＨＦ帯におけるアンテナ利得を確保できる。 Therefore, according to the window glass mounting structure 201 of the first embodiment, the reception signal obtained by receiving the radio wave included in the UHF band at least a part of the planar conductor 50 is output from the feeding electrode 35. The antenna gain in the UHF band can be secured.

なお、ＵＨＦ帯は、３００ＭＨｚ以上３ＧＨｚ以下の周波数帯を表す。ＵＨＦ帯に含まれる周波数帯の具体例として、地上デジタルテレビ放送波の帯域（例えば、４７３ＭＨｚ～７１３ＭＨｚ）などがある。 The UHF band represents a frequency band of 300 MHz or more and 3 GHz or less. Specific examples of the frequency band included in the UHF band include a terrestrial digital television broadcast wave band (for example, 473 MHz to 713 MHz).

給電電極３５は、ＵＨＦ帯に含まれる一つ又は複数の放送波の受信信号を出力する。給電電極３５から出力される受信信号に係る電波は、例えば、地上デジタルテレビ放送波が挙げられる。 The feeding electrode 35 outputs a reception signal of one or a plurality of broadcast waves included in the UHF band. As the radio wave related to the received signal output from the feeding electrode 35, for example, a terrestrial digital television broadcast wave can be mentioned.

図１に示す窓ガラス取り付け構造２０１の例では、給電電極３５の少なくとも一部は、ガラス板２０を挟んで、平面状導体５０の一部（この例では、外周縁５６の第２短辺５６ｄに沿った部分）と対向している。給電電極３５は、給電線３２の一端が接続される給電点３６を有し、給電線３２を介して、アンプ６１の入力部に接続される。アンプ６１は、給電電極３５に実装されてもよい。平面状導体５０で電波を受信して得られる信号は、平面状導体５０と給電電極３５との間の容量結合を介してアンプ６１の入力部に入力され、給電電極３５で電波を受信して得られる信号も、アンプ６１の入力部に入力される。アンプ６１の入力部に入力された信号は、バンドパスフィルタによるフィルタリング及び増幅回路による増幅がされて、アンプ６１から出力される。 In the example of the window glass mounting structure 201 shown in FIG. 1, at least a part of the feeding electrode 35 sandwiches the glass plate 20 and is a part of the planar conductor 50 (in this example, the second short side 56d of the outer peripheral edge 56). It faces the part along the). The feeding electrode 35 has a feeding point 36 to which one end of the feeding line 32 is connected, and is connected to the input portion of the amplifier 61 via the feeding line 32. The amplifier 61 may be mounted on the feeding electrode 35. The signal obtained by receiving the radio wave by the planar conductor 50 is input to the input unit of the amplifier 61 via the capacitive coupling between the planar conductor 50 and the feeding electrode 35, and the radio wave is received by the feeding electrode 35. The obtained signal is also input to the input unit of the amplifier 61. The signal input to the input section of the amplifier 61 is filtered by a bandpass filter and amplified by an amplifier circuit, and then output from the amplifier 61.

図１，２に示す窓ガラス取り付け構造２０１の例では、給電電極３５は、Ｚ軸方向からの窓ガラス１０１の平面視で第２内部導体７２にガラス板２０を介して対向するので、第２内部導体７２と容量結合する。これにより、給電電極３５と第２内部導体７２との間の容量結合部は、ＵＨＦ帯よりもＶＨＦ帯の受信信号を減衰させる度合いが高いハイパスフィルタとして機能する。これにより、ＵＨＦ帯におけるアンテナ利得を増大できる。 In the example of the window glass mounting structure 201 shown in FIGS. 1 and 2, the feeding electrode 35 faces the second inner conductor 72 via the glass plate 20 in the plan view of the window glass 101 from the Z-axis direction. Capacitively coupled to the inner conductor 72. As a result, the capacitive coupling portion between the feeding electrode 35 and the second inner conductor 72 functions as a high-pass filter having a higher degree of attenuation of the received signal in the VHF band than in the UHF band. This makes it possible to increase the antenna gain in the UHF band.

給電電極３５は、例えば、窓ガラス１０１の平面視で平面状導体５０の外周縁５６の第２短辺５６ｄが延伸する方向が長手方向となるように形成される。図１に示す例では、給電電極３５は、第２短辺５６ｄに沿って延伸する矩形エレメント３５ａと、矩形エレメント３５ａに接続される直線エレメント３５ｂと、を有する。 The feeding electrode 35 is formed, for example, so that the direction in which the second short side 56d of the outer peripheral edge 56 of the planar conductor 50 extends is the longitudinal direction in the plan view of the window glass 101. In the example shown in FIG. 1, the feeding electrode 35 has a rectangular element 35a extending along the second short side 56d and a linear element 35b connected to the rectangular element 35a.

例えば、矩形エレメント３５ａは、一対の長辺と一対の短辺とを有する長方形に形成された長方形状のエレメントである。直線エレメント３５ｂは、矩形エレメント３５ａの一辺である下辺から延伸し、その下辺の幅よりも細い幅を有する線条エレメントである。矩形エレメント３５ａの下辺は、一対の短辺のうちの一方の辺である。直線エレメント３５ｂの長さを調整することで、ＵＨＦ帯におけるアンテナ利得の改善を図ることができる。 For example, the rectangular element 35a is a rectangular element formed into a rectangle having a pair of long sides and a pair of short sides. The linear element 35b is a linear element extending from the lower side, which is one side of the rectangular element 35a, and having a width narrower than the width of the lower side. The lower side of the rectangular element 35a is one side of a pair of short sides. By adjusting the length of the linear element 35b, the antenna gain in the UHF band can be improved.

なお、給電電極３５は、直線エレメント３５ｂがない形態でもよい。 The feeding electrode 35 may be in a form without the linear element 35b.

図１に示す窓ガラス取り付け構造２０１の例では、第１内部導体７１は、窓ガラス１０１の平面視で金属部６３の内縁６４に沿って延伸している。図１は、第１内部導体７１が窓ガラス１０１の平面視で金属部６３の内縁６４及びガラス板２０の外縁２３に沿って内縁６４と外縁２３との間を直線的に延伸する形態を例示する。第１内部導体７１は、窓ガラス１０１の平面視で金属部６３の内縁６４と重ならないように延伸することで、金属部６３と第１内部導体７１との結合容量が増加する。当該結合容量の増加により、ＵＨＦ帯におけるアンテナ利得が増大する。なお、第１内部導体７１は、窓ガラス１０１の平面視で内縁６４と交差してもよい。 In the example of the window glass mounting structure 201 shown in FIG. 1, the first inner conductor 71 extends along the inner edge 64 of the metal portion 63 in the plan view of the window glass 101. FIG. 1 illustrates a form in which the first inner conductor 71 linearly extends between the inner edge 64 and the outer edge 23 along the inner edge 64 of the metal portion 63 and the outer edge 23 of the glass plate 20 in a plan view of the window glass 101. do. By extending the first inner conductor 71 so as not to overlap the inner edge 64 of the metal portion 63 in the plan view of the window glass 101, the coupling capacity between the metal portion 63 and the first inner conductor 71 increases. The increase in the coupling capacitance increases the antenna gain in the UHF band. The first inner conductor 71 may intersect the inner edge 64 in the plan view of the window glass 101.

金属部６３と第１内部導体７１との結合容量は、９［ｐＦ］以上であると、ＵＨＦ帯におけるアンテナ利得を増大できる。当該結合容量は、ＵＨＦ帯におけるアンテナ利得が増大する点で、１２［ｐＦ］以上が好ましく、１５［ｐＦ］以上がより好ましい。 When the coupling capacitance between the metal portion 63 and the first inner conductor 71 is 9 [pF] or more, the antenna gain in the UHF band can be increased. The coupling capacitance is preferably 12 [pF] or more, and more preferably 15 [pF] or more, in that the antenna gain in the UHF band increases.

図１に示す窓ガラス取り付け構造２０１の例では、第２内部導体７２は、Ｚ軸方向からの窓ガラス１０１の平面視で、第１内部導体７１から離れる方向に延伸する第１導体部分７３と、第１導体部分７３が延伸する方向とは異なる方向に延伸する第２導体部分７４とを含む構成を有する。第２内部導体７２がこのような構成を有することで、ＵＨＦ帯におけるアンテナ利得をより確保できる。 In the example of the window glass mounting structure 201 shown in FIG. 1, the second inner conductor 72 is the first conductor portion 73 extending in the direction away from the first inner conductor 71 in the plan view of the window glass 101 from the Z-axis direction. The first conductor portion 73 includes a second conductor portion 74 that extends in a direction different from the stretching direction. When the second inner conductor 72 has such a configuration, the antenna gain in the UHF band can be further secured.

図１の窓ガラス取り付け構造２０１は、Ｚ軸方向からの窓ガラス１０１の平面視で第２内部導体７２が第１導体部分７３と第２導体部分７４とを含むＬ字状部分を有する形態を例示する。第１導体部分７３は、窓ガラス１０１の平面視で金属部６３の内縁６４及び平面状導体５０の第２短辺５６ｄと交差するように正のＸ軸方向に延伸する。第２導体部分７４は、窓ガラス１０１の平面視で金属部６３の内縁６４及び平面状導体５０の第２短辺５６ｄに沿って正のＹ軸方向に延伸する。 The window glass mounting structure 201 of FIG. 1 has a form in which the second inner conductor 72 has an L-shaped portion including the first conductor portion 73 and the second conductor portion 74 in a plan view of the window glass 101 from the Z-axis direction. Illustrate. The first conductor portion 73 extends in the positive X-axis direction so as to intersect the inner edge 64 of the metal portion 63 and the second short side 56d of the planar conductor 50 in a plan view of the window glass 101. The second conductor portion 74 extends in the positive Y-axis direction along the inner edge 64 of the metal portion 63 and the second short side 56d of the planar conductor 50 in a plan view of the window glass 101.

なお、第２内部導体７２は、ＵＨＦ帯におけるアンテナ利得をより確保する点で、Ｚ軸方向からの窓ガラス１０１の平面視で第１導体部分７３と第２導体部分７４とを含むＴ字状部分を有してもよい。 The second inner conductor 72 has a T-shape including the first conductor portion 73 and the second conductor portion 74 in a plan view of the window glass 101 from the Z-axis direction in order to further secure the antenna gain in the UHF band. It may have a portion.

図１，２に示す窓ガラス取り付け構造２０１の例では、第２内部導体７２は、窓ガラス１０１の平面視の方向で平面状導体５０に対向するので、第２内部導体７２と平面状導体５０との結合容量が増加する。この例では、第２内部導体７２は、中間膜４０を介して平面状導体５０の外周縁５６の第２短辺５６ｄに沿った領域に対向する。当該結合容量の増加により、ＵＨＦ帯におけるアンテナ利得が増大する。 In the example of the window glass mounting structure 201 shown in FIGS. 1 and 2, since the second inner conductor 72 faces the planar conductor 50 in the plan view direction of the window glass 101, the second inner conductor 72 and the planar conductor 50 The binding capacity with is increased. In this example, the second inner conductor 72 faces a region along the second short side 56d of the outer peripheral edge 56 of the planar conductor 50 via the interlayer film 40. The increase in the coupling capacitance increases the antenna gain in the UHF band.

第２内部導体７２と平面状導体５０との結合容量は、１３［ｐＦ］以上であると、ＵＨＦ帯におけるアンテナ利得を増大できる。当該結合容量は、当該帯域におけるアンテナ利得が増大する点で、１６［ｐＦ］以上が好ましく、１９［ｐＦ］以上がより好ましい。 When the coupling capacitance between the second inner conductor 72 and the planar conductor 50 is 13 [pF] or more, the antenna gain in the UHF band can be increased. The coupling capacitance is preferably 16 [pF] or more, and more preferably 19 [pF] or more, in that the antenna gain in the band increases.

図１に示すように、窓ガラス１０１は、ガラス板２０の主面２２の側に設けられ、内部導体７０とは異なる箇所で金属部６３に直接結合又は容量結合で電気的に接続される接地電極３８を更に備えてもよい。接地電極３８は、窓ガラス１０１の平面視で、内部導体７０とは異なる箇所で平面状導体５０にガラス板２０を介して対向する部分を有する。接地電極３８が追加されることで、平面状導体５０と金属部６３との結合容量が増加する。これにより、平面状導体５０が給電電極３５と接地電極３８のそれぞれに容量結合することで形成される逆ＦアンテナのＶＨＦ帯におけるアンテナ利得が増大する。 As shown in FIG. 1, the window glass 101 is provided on the side of the main surface 22 of the glass plate 20, and is electrically connected to the metal portion 63 at a position different from the internal conductor 70 by direct coupling or capacitive coupling. Further electrodes 38 may be provided. The ground electrode 38 has a portion facing the planar conductor 50 via the glass plate 20 at a position different from that of the internal conductor 70 in the plan view of the window glass 101. By adding the ground electrode 38, the coupling capacitance between the planar conductor 50 and the metal portion 63 increases. As a result, the antenna gain in the VHF band of the inverted-F antenna formed by capacitively coupling the planar conductor 50 to each of the feeding electrode 35 and the ground electrode 38 increases.

窓ガラス取り付け構造２０１は、このような接地電極３８を更に備える構成により、ＶＨＦ帯からＵＨＦ帯までの領域におけるアンテナ利得を増大できる。なお、ＶＨＦ帯は、３０ＭＨｚ以上３００ＭＨｚ以下の周波数帯を表す。ＶＨＦ帯に含まれる周波数帯の具体例として、ＦＭ放送波の帯域（例えば、７６ＭＨｚ～１０８ＭＨｚ）、ＤＡＢ Ｂａｎｄ ＩＩＩの帯域（例えば、１７０ＭＨｚ～２４０ＭＨｚ）などがある。 The window glass mounting structure 201 can further increase the antenna gain in the region from the VHF band to the UHF band by further providing the ground electrode 38. The VHF band represents a frequency band of 30 MHz or more and 300 MHz or less. Specific examples of the frequency band included in the VHF band include an FM broadcast wave band (for example, 76 MHz to 108 MHz) and a DAB Band III band (for example, 170 MHz to 240 MHz).

接地電極３８は、例えば、主面２２に形成される導体パターンである。図１に示す例では、接地電極３８は、主面２２の一方の側縁部（この例では、右縁部）に設けられ、窓ガラス１０１の平面視で平面状導体５０の外周縁５６の第２短辺５６ｄに沿って延伸する矩形状のエレメントである。しかし、接地電極３８は、主面２２の上縁部又は下限部などの他の位置に配置されてもよく、円形や他の多角形などの他の形状でもよい。 The ground electrode 38 is, for example, a conductor pattern formed on the main surface 22. In the example shown in FIG. 1, the ground electrode 38 is provided on one side edge portion (right edge portion in this example) of the main surface 22, and is formed on the outer peripheral edge 56 of the planar conductor 50 in a plan view of the window glass 101. It is a rectangular element extending along the second short side 56d. However, the ground electrode 38 may be arranged at another position such as the upper edge portion or the lower limit portion of the main surface 22, and may have another shape such as a circle or another polygon.

また、図１に示す窓ガラス取り付け構造２０１では、窓ガラス１０１の平面視において、金属部６３は、平面状導体５０にガラス板２０を介して対向する金属部分を有していないが、平面状導体５０にガラス板２０を介して対向する金属部分を有してもよい。金属部６３が窓ガラス１０１の平面視で内部導体７０とは異なる箇所で平面状導体５０にガラス板２０を介して対向する金属部分を有する場合、平面状導体５０は、ガラス板２０が介在する容量結合により電気的に接続されて当該金属部分に接地されるので、接地電極３８は無くてもよい。そのような金属部分を有する場合、接地電極３８の有無にかかわらず、平面状導体５０が給電電極３５と当該金属部分のそれぞれに容量結合で電気的に接続されることで形成される逆ＦアンテナのＶＨＦ帯におけるアンテナ利得が増大する。 Further, in the window glass mounting structure 201 shown in FIG. 1, in the plan view of the window glass 101, the metal portion 63 does not have a metal portion facing the planar conductor 50 via the glass plate 20, but is planar. The conductor 50 may have a metal portion facing the conductor 50 via the glass plate 20. When the metal portion 63 has a metal portion facing the flat conductor 50 via the glass plate 20 at a position different from the internal conductor 70 in the plan view of the window glass 101, the flat conductor 50 is interposed with the glass plate 20. Since it is electrically connected by capacitive coupling and grounded to the metal portion, the ground electrode 38 may not be provided. When having such a metal portion, an inverted F antenna formed by electrically connecting the planar conductor 50 to each of the feeding electrode 35 and the metal portion by a capacitive coupling regardless of the presence or absence of the ground electrode 38. The antenna gain in the VHF band is increased.

なお、窓ガラス１０１の平面視で金属部６３が内部導体７０とは異なる箇所で平面状導体５０にガラス板２０を介して対向する金属部分を有さない場合でも、これらの距離を近づけて配置すると、平面状導体５０は、容量結合により電気的に接続されて当該金属部分に接地されるので、接地電極３８は無くてもよい。なお、平面状導体５０と金属部６３の当該金属部分との距離は、３０ｍｍ以下であれば容量結合でき、２５ｍｍ以下が好ましく、２０ｍｍ以下がより好ましい。したがって、窓ガラス取り付け構造２０１において、そのような金属部分を有する場合、接地電極３８の有無にかかわらず、ＶＨＦ帯からＵＨＦ帯までの領域におけるアンテナ利得を増大できる。 Even if the metal portion 63 does not have a metal portion facing the planar conductor 50 via the glass plate 20 at a position different from the internal conductor 70 in the plan view of the window glass 101, these distances are arranged close to each other. Then, since the planar conductor 50 is electrically connected by capacitive coupling and is grounded to the metal portion, the ground electrode 38 may be omitted. The distance between the planar conductor 50 and the metal portion of the metal portion 63 is 30 mm or less, which allows capacitive coupling, and is preferably 25 mm or less, more preferably 20 mm or less. Therefore, when the window glass mounting structure 201 has such a metal portion, the antenna gain in the region from the VHF band to the UHF band can be increased regardless of the presence or absence of the ground electrode 38.

図１に示すように、窓ガラス１０１は、ガラス板２０の主面２２の側に設けられる給電電極３３を更に備えてもよい。給電電極３３は、例えば、主面２２に形成される導体パターンである。図１に示す例では、給電電極３３は、主面２２の他方の側縁部（この例では、左縁部）に設けられ、窓ガラス１０１の平面視で平面状導体５０の外周縁５６の第１短辺５６ｃに沿って延伸する矩形状のエレメントである。しかし、給電電極３３は、主面２２の上縁部又は下限部などの他の位置に配置されてもよく、Ｚ軸方向からの窓ガラス１０１の平面視で円形や他の多角形などの他の形状でもよい。 As shown in FIG. 1, the window glass 101 may further include a feeding electrode 33 provided on the side of the main surface 22 of the glass plate 20. The feeding electrode 33 is, for example, a conductor pattern formed on the main surface 22. In the example shown in FIG. 1, the feeding electrode 33 is provided on the other side edge portion (in this example, the left edge portion) of the main surface 22, and is formed on the outer peripheral edge 56 of the planar conductor 50 in a plan view of the window glass 101. It is a rectangular element extending along the first short side 56c. However, the feeding electrode 33 may be arranged at another position such as the upper edge portion or the lower limit portion of the main surface 22, and may be circular or other polygonal in a plan view of the window glass 101 from the Z-axis direction. It may be in the shape of.

給電電極３３を含む左側構造は、給電電極３５及び内部導体７０を含む右側構造と同様の構成を有するので、当該左側構造についての説明は、当該右側構造についての上述の説明を援用することで簡略する。給電電極３３を含む左側構造を、給電電極３５及び内部導体７０を含む右側構造と同様の構成にすることで、ダイバーシティアンテナを構成できる。図１に示す窓ガラス取り付け構造２０１の例では、給電電極３３は、給電線３１の一端が接続される給電点３４を有し、給電線３１を介して、アンプ６０の入力部に接続される。給電電極３３は、第１短辺５６ｃに沿って延伸する矩形エレメント３３ａと、矩形エレメント３３ａに接続される直線エレメント３３ｂと、を有する。 Since the left side structure including the feeding electrode 33 has the same structure as the right side structure including the feeding electrode 35 and the internal conductor 70, the description of the left side structure is simplified by referring to the above description of the right side structure. do. The diversity antenna can be configured by forming the left side structure including the feeding electrode 33 in the same structure as the right side structure including the feeding electrode 35 and the internal conductor 70. In the example of the window glass mounting structure 201 shown in FIG. 1, the feeding electrode 33 has a feeding point 34 to which one end of the feeding line 31 is connected, and is connected to the input portion of the amplifier 60 via the feeding line 31. .. The feeding electrode 33 has a rectangular element 33a extending along the first short side 56c and a linear element 33b connected to the rectangular element 33a.

また、窓ガラス１０１は、ガラス板２０の主面２２の側に設けられ、内部導体７０とは異なる箇所で金属部６３に直接結合又は容量結合で電気的に接続される接地電極３７を更に備えてもよい。接地電極３７は、内部導体７０とは異なる箇所で窓ガラス１０１の平面視で平面状導体５０にガラス板２０を介して対向する部分を有する。接地電極３７を含む左側接地構造は、接地電極３８を含む右側接地構造と同様の構成を有するので、当該左側接地構造についての説明は、当該右側接地構造についての上述の説明を援用することで簡略する。 Further, the window glass 101 is further provided with a ground electrode 37 provided on the side of the main surface 22 of the glass plate 20 and electrically connected to the metal portion 63 at a position different from the internal conductor 70 by direct coupling or capacitive coupling. You may. The ground electrode 37 has a portion different from the internal conductor 70 and faces the planar conductor 50 in a plan view of the window glass 101 via the glass plate 20. Since the left grounding structure including the grounding electrode 37 has the same configuration as the right grounding structure including the grounding electrode 38, the description of the left grounding structure is simplified by referring to the above description of the right side grounding structure. do.

ガラス板１０とガラス板２０とのうちの一方又は両方は、可視光を透過する透過領域１４（図１参照）を有し、可視光を遮光する遮光膜１３（図１参照）を透過領域１４の外側に備えてもよい。遮光膜１３は、ガラス板１０とガラス板２０とのうちの一方又は両方の外周縁部に設けられる。遮光膜１３は、平面視において、例えば、平面状導体５０の両端部、正極５７、負極５８、内部導体７０、給電電極３５、給電電極３３、接地電極３８及び接地電極３７のうちの一部又は全部と、ガラス板１０の厚さ方向で重複する。重複には、全体的に重複する形態に限られず、部分的に重複する形態が含まれてもよい。遮光膜１３の具体例として、黒色セラミックス膜等のセラミックスが挙げられる。遮光膜１３と重複する部分が存在する場合、窓ガラス１０１を車外側から見ると、その重複する部分が視認しにくくなる。よって、窓ガラス１０１や車両のデザイン性などの見栄えが向上するとともに、視界を確保できる。 One or both of the glass plate 10 and the glass plate 20 has a transmission region 14 (see FIG. 1) that transmits visible light, and a light-shielding film 13 (see FIG. 1) that blocks visible light is transmitted through the transmission region 14. It may be provided on the outside of. The light-shielding film 13 is provided on the outer peripheral edge of one or both of the glass plate 10 and the glass plate 20. In a plan view, the light-shielding film 13 is, for example, a part of both ends of the planar conductor 50, a positive electrode 57, a negative electrode 58, an internal conductor 70, a feeding electrode 35, a feeding electrode 33, a grounding electrode 38, and a grounding electrode 37. It overlaps with all of them in the thickness direction of the glass plate 10. The duplication is not limited to the totally overlapping form, and may include a partially overlapping form. Specific examples of the light-shielding film 13 include ceramics such as a black ceramic film. When there is a portion overlapping with the light-shielding film 13, when the window glass 101 is viewed from the outside of the vehicle, the overlapping portion becomes difficult to see. Therefore, the appearance of the window glass 101, the design of the vehicle, and the like can be improved, and the visibility can be secured.

遮光膜１３の内縁１３ａは、例えば、平面状導体５０の外周縁５６の少なくとも一部よりも内側にある。これにより、外周縁５６の少なくとも一部は、平面視で遮光膜１３と重複するので、平面状導体５０がある部分とない部分の境目が車外側から見ると遮光膜１３により隠れ、見栄えが向上する。 The inner edge 13a of the light-shielding film 13 is, for example, inside at least a part of the outer peripheral edge 56 of the planar conductor 50. As a result, at least a part of the outer peripheral edge 56 overlaps with the light-shielding film 13 in a plan view, so that the boundary between the portion with and without the planar conductor 50 is hidden by the light-shielding film 13 when viewed from the outside of the vehicle, and the appearance is improved. do.

図１に示す例では、窓ガラス取り付け構造２０１は、正極５７に接続される第１コイル８１と、負極５８に接続される第２コイル８３とを備える。コイル８１，８３は、少なくともＶＨＦ帯の信号を遮断する。これにより、ＶＨＦ帯の高周波信号が直流電源８０及びグランド側に漏洩することを抑制できる。例えば、コイル８１，８３は、ＦＭ放送波の帯域とＤＡＢ Ｂａｎｄ ＩＩＩの帯域とのうちの一方又は両方の信号を遮断する。 In the example shown in FIG. 1, the window glass mounting structure 201 includes a first coil 81 connected to the positive electrode 57 and a second coil 83 connected to the negative electrode 58. The coils 81 and 83 cut off signals in at least the VHF band. As a result, it is possible to prevent the high frequency signal in the VHF band from leaking to the DC power supply 80 and the ground side. For example, the coils 81 and 83 cut off one or both signals of the FM broadcast wave band and the DAB Band III band.

第１コイル８１の正極５７とは反対側は、キャパシタ８２を介してグランドに接続されてもよいし、第２コイル８３の負極５８とは反対側は、キャパシタ８４を介してグランドに接続されてもよい。キャパシタ８２，８４は、配線のインピーダンスの調整とノイズフィルタとして機能する。 The side of the first coil 81 opposite to the positive electrode 57 may be connected to the ground via the capacitor 82, and the side of the second coil 83 opposite to the negative electrode 58 may be connected to the ground via the capacitor 84. May be good. Capacitors 82 and 84 function as wiring impedance adjusters and noise filters.

図１に示す例では、窓ガラス取り付け構造２０１は、正極５７と負極５８に接続されるチョークコイル８６を更に備える。チョークコイル８６は、少なくともＭＦ（Medium Frequency）帯の信号を遮断する。チョークコイル８６は、１次側コイルと２次側コイルを有するトランス構造を有する。正極５７は、１次側コイルを介して、直流電源８０の正極側に接続され、負極５８は、２次側コイルを介して、直流電源８０の負極側に接続される。チョークコイル８６の挿入により、ＡＭ放送波等のＭＦ帯の電波を平面状導体５０で受信して得られる受信信号が直流電源８０及びグランド側に漏洩することを抑制でき、電源側から混入してくるノイズを抑制できる。 In the example shown in FIG. 1, the window glass mounting structure 201 further includes a choke coil 86 connected to a positive electrode 57 and a negative electrode 58. The choke coil 86 cuts off a signal in at least the MF (Medium Frequency) band. The choke coil 86 has a transformer structure having a primary side coil and a secondary side coil. The positive electrode 57 is connected to the positive electrode side of the DC power supply 80 via the primary coil, and the negative electrode 58 is connected to the negative electrode side of the DC power supply 80 via the secondary coil. By inserting the choke coil 86, it is possible to suppress the leakage of the received signal obtained by receiving the MF band radio wave such as the AM broadcast wave by the planar conductor 50 to the DC power supply 80 and the ground side, and the signal is mixed from the power supply side. The coming noise can be suppressed.

図２に示す窓ガラス取り付け構造２０１の例では、平面状導体５０は、ガラス板１０と中間膜４０の間に配置され、内部導体７０は、中間膜４０とガラス板２０との間に配置される。しかしながら、内部導体７０は、ガラス板１０と中間膜４０の間に配置され、平面状導体５０は、中間膜４０とガラス板２０との間に配置されてもよい。後述の実施形態でも同様である。 In the example of the window glass mounting structure 201 shown in FIG. 2, the planar conductor 50 is arranged between the glass plate 10 and the interlayer film 40, and the inner conductor 70 is arranged between the interlayer film 40 and the glass plate 20. The glass. However, the inner conductor 70 may be arranged between the glass plate 10 and the interlayer film 40, and the planar conductor 50 may be arranged between the interlayer film 40 and the glass plate 20. The same applies to the embodiments described later.

図３は、第２実施形態における窓ガラス取り付け構造の一構成例の断面図である。上述の実施形態と同様の構成についての説明は、上述の説明を援用することで、省略する。図３に示す窓ガラス取り付け構造２０２は、車体に形成される窓枠６６と、窓枠６６に取り付けられる窓ガラス１０２とを備える。窓ガラス１０２は、給電電極３５が第２内部導体７２にガラス板２０を介して平面視で対向していない点で、第１実施形態における窓ガラス１０１と異なる。第２実施形態でも、ＵＨＦ帯に含まれる電波の受信信号が給電電極３５から出力されるので、ＵＨＦ帯におけるアンテナ利得を確保できる。 FIG. 3 is a cross-sectional view of a configuration example of the window glass mounting structure according to the second embodiment. The description of the same configuration as the above-described embodiment will be omitted by referring to the above-mentioned description. The window glass mounting structure 202 shown in FIG. 3 includes a window frame 66 formed on the vehicle body and a window glass 102 attached to the window frame 66. The window glass 102 is different from the window glass 101 in the first embodiment in that the feeding electrode 35 does not face the second inner conductor 72 via the glass plate 20 in a plan view. Also in the second embodiment, since the reception signal of the radio wave included in the UHF band is output from the feeding electrode 35, the antenna gain in the UHF band can be secured.

さらに、上述と同様に、接地電極３８が追加されることで、平面状導体５０と金属部６３との結合容量が増加し、平面状導体５０が給電電極３５と接地電極３８のそれぞれに容量結合することで形成される逆ＦアンテナのＶＨＦ帯におけるアンテナ利得が増大する。 Further, as described above, the addition of the ground electrode 38 increases the coupling capacitance between the planar conductor 50 and the metal portion 63, and the planar conductor 50 is capacitively coupled to each of the feeding electrode 35 and the ground electrode 38. The antenna gain in the VHF band of the inverted F antenna formed by this is increased.

したがって、第２実施形態における窓ガラス取り付け構造２０２は、このような構成により、ＶＨＦ帯からＵＨＦ帯までの領域におけるアンテナ利得を増大できる。なお、第１実施形態と同様に、金属部６３は、窓ガラス１０２の平面視で内部導体７０とは異なる箇所で平面状導体５０にガラス板２０を介して容量結合して電気的に接続する金属部分を有してもよい。窓ガラス取り付け構造２０２において、そのような金属部分を有する場合、接地電極３８の有無にかかわらず、ＶＨＦ帯からＵＨＦ帯までの領域におけるアンテナ利得を増大できる。 Therefore, the window glass mounting structure 202 in the second embodiment can increase the antenna gain in the region from the VHF band to the UHF band by such a configuration. As in the first embodiment, the metal portion 63 is capacitively coupled to the planar conductor 50 at a position different from the internal conductor 70 in the plan view of the window glass 102 via the glass plate 20 and electrically connected. It may have a metal part. When the window glass mounting structure 202 has such a metal portion, the antenna gain in the region from the VHF band to the UHF band can be increased regardless of the presence or absence of the ground electrode 38.

図４は、第３実施形態における窓ガラス取り付け構造の一構成例の断面図である。上述の実施形態と同様の構成についての説明は、上述の説明を援用することで、省略する。図４に示す窓ガラス取り付け構造２０３は、車体に形成される窓枠６６と、窓枠６６に取り付けられる窓ガラス１０３とを備える。窓ガラス１０３は、第２内部導体７２が平面状導体５０に窓ガラス１０３の平面視の方向で対向していない点で、第１実施形態における窓ガラス１０１と異なる。第３実施形態では、第２内部導体７２は、窓ガラス１０３の平面視の方向に直角な方向（この例では、主面１１又は主面２１に平行なＸ軸方向）で平面状導体５０に対向する。例えば、第２内部導体７２は、平面状導体５０の外周縁５６の第２短辺５６ｄに沿って延伸する第２導体部分７４を有し、第２導体部分７４は、外周縁５６の第２短辺５６ｄにＸ軸方向で対向する。 FIG. 4 is a cross-sectional view of a configuration example of the window glass mounting structure according to the third embodiment. The description of the same configuration as the above-described embodiment will be omitted by referring to the above-mentioned description. The window glass mounting structure 203 shown in FIG. 4 includes a window frame 66 formed on the vehicle body and a window glass 103 mounted on the window frame 66. The window glass 103 is different from the window glass 101 in the first embodiment in that the second inner conductor 72 does not face the planar conductor 50 in the plan view direction of the window glass 103. In the third embodiment, the second inner conductor 72 is attached to the planar conductor 50 in a direction perpendicular to the plan view direction of the window glass 103 (in this example, the X-axis direction parallel to the main surface 11 or the main surface 21). opposite. For example, the second inner conductor 72 has a second conductor portion 74 extending along the second short side 56d of the outer peripheral edge 56 of the planar conductor 50, and the second conductor portion 74 is the second of the outer peripheral edge 56. It faces the short side 56d in the X-axis direction.

図４に示す例では、平面状導体５０及び内部導体７０は、主面１１に同一層で配置されているが、主面２１に同一層で配置されてもよいし、二枚の中間膜４０の間に配置されてもよい。 In the example shown in FIG. 4, the planar conductor 50 and the inner conductor 70 are arranged in the same layer on the main surface 11, but may be arranged in the same layer on the main surface 21 or two interlayer films 40. It may be placed between.

図５は、第４実施形態における窓ガラス取り付け構造の一構成例を平面視で示す図である。上述の実施形態と同様の構成についての説明は、上述の説明を援用することで、省略する。図５に示す窓ガラス取り付け構造２０４は、車体に形成される窓枠６６と、窓枠６６に取り付けられる窓ガラス１０４とを備える。窓ガラス１０４では、平面状導体５０は、第１長辺５６ａ又は第２長辺５６ｂに略平行に延伸する少なくとも一本の分割スリット５９により第１平面状導体１５５と第２平面状導体１５６とに分離されている。 FIG. 5 is a diagram showing a configuration example of the window glass mounting structure according to the fourth embodiment in a plan view. The description of the same configuration as the above-described embodiment will be omitted by referring to the above-mentioned description. The window glass mounting structure 204 shown in FIG. 5 includes a window frame 66 formed on the vehicle body and a window glass 104 mounted on the window frame 66. In the window glass 104, the planar conductor 50 is formed with the first planar conductor 155 and the second planar conductor 156 by at least one dividing slit 59 extending substantially parallel to the first long side 56a or the second long side 56b. Is separated into.

例えば、第１平面状導体１５５は、電圧が印加されるのに対し、第２平面状導体１５６は、電圧が印加されない。第１平面状導体１５５には電圧が印加されるので、第１平面状導体１５５はヒータとして窓ガラス１０４の防氷や防曇などの機能を有するのに対し、第２平面状導体１５６には電圧が印加されないので、第２平面状導体１５６はヒータとしては機能しない。この場合、第２平面状導体１５６は、ＡＭ放送波の帯域を含むＭＦ帯の電波を受信するアンテナとして機能させることができる。 For example, a voltage is applied to the first planar conductor 155, whereas a voltage is not applied to the second planar conductor 156. Since a voltage is applied to the first planar conductor 155, the first planar conductor 155 has functions such as anti-icing and anti-fog of the window glass 104 as a heater, whereas the second planar conductor 156 has functions such as anti-icing and anti-fog. Since no voltage is applied, the second planar conductor 156 does not function as a heater. In this case, the second planar conductor 156 can function as an antenna for receiving radio waves in the MF band including the band of the AM broadcast wave.

ここで、ＶＨＦ帯の中心周波数における空気中の電波の波長をλ１Ｃとするとき、分割スリット５９の幅ＷＳＳは、０．３５×１０－３×λ１Ｃ以下であると、ＶＨＦ帯の電波の受信感度が向上する。ＶＨＦの電波の受信感度が向上する点で、幅ＷＳＳは、０．３０×１０－３×λ１Ｃ以下が好ましく、０．２５×１０－３×λ１Ｃ以下がより好ましい。なお、分割スリット５９の幅ＷＳＳは、第１平面状導体１５５と第２平面状導体１５６とが直流的に絶縁されていればよく、例えば、２．０×１０－２ｍｍ以上としてもよい。 Here, when the wavelength of the radio wave in the air at the center frequency of the VHF band is λ 1C , the width WSS of the dividing slit 59 is 0.35 × 10 -3 × λ 1C or less, and the radio wave in the VHF band. The reception sensitivity of is improved. The width W SS is preferably 0.30 × 10 -3 × λ 1C or less, and more preferably 0.25 × 10 -3 × λ 1C or less, in terms of improving the reception sensitivity of VHF radio waves. The width WSS of the split slit 59 may be 2.0 × 10 −2 mm or more, as long as the first planar conductor 155 and the second planar conductor 156 are directly insulated from each other. ..

なお、分割スリット５９は、平面視で、その切れ込み幅がその切れ込み長さよりも短い切れ込みである。 The split slit 59 is a notch whose cut width is shorter than the notch length in a plan view.

第１平面状導体１５５の面積Ｓ１は、第２平面状導体１５６の面積Ｓ２の２．０倍以上９．０倍以下であると、ＶＨＦ帯の電波の受信感度が向上する。ＶＨＦ帯の電波の受信感度が向上する点で、面積Ｓ１は、面積Ｓ２の２．５倍以上が好ましく、面積Ｓ２の３．０倍以上がより好ましい。ＭＦ帯の電波の受信感度が向上する点で、面積Ｓ１は、面積Ｓ２の８．５倍以下が好ましく、面積Ｓ２の８．０倍以下がより好ましい。 When the area S1 of the first planar conductor 155 is 2.0 times or more and 9.0 times or less the area S2 of the second planar conductor 156, the reception sensitivity of radio waves in the VHF band is improved. The area S 1 is preferably 2.5 times or more the area S 2 , and more preferably 3.0 times or more the area S 2 in terms of improving the reception sensitivity of radio waves in the VHF band. The area S 1 is preferably 8.5 times or less the area S 2 , and more preferably 8.0 times or less the area S 2 in terms of improving the reception sensitivity of radio waves in the MF band.

給電電極３３と給電電極３５とのうちの一方又は両方は、窓ガラス１０４の平面視で分割スリット５９と交差してもよく、この例では、分割スリット５９に平面視で交差する直線エレメント３３ｂ，３５ｂを有する。これにより、ＶＨＦ帯とＵＨＦ帯におけるアンテナ利得が向上する。 One or both of the feeding electrode 33 and the feeding electrode 35 may intersect the dividing slit 59 in a plan view of the window glass 104, and in this example, the linear element 33b, which intersects the dividing slit 59 in a plan view, It has 35b. This improves the antenna gain in the VHF band and the UHF band.

図６は、各実施形態における窓ガラス取り付け構造を平面視で示す概略図であり、車外側からの視点で示す平面図である。図６は、金属部６３がガラス板２０の外縁２３の全周に沿っている形態を例示する。図６に示す例では、第１内部導体７１は、外縁２３の全周のうちの一部に沿っているが、外縁２３の全周に沿っていてもよい。 FIG. 6 is a schematic view showing the window glass mounting structure in each embodiment in a plan view, and is a plan view showing a viewpoint from the outside of the vehicle. FIG. 6 illustrates a form in which the metal portion 63 is along the entire circumference of the outer edge 23 of the glass plate 20. In the example shown in FIG. 6, the first inner conductor 71 is along a part of the entire circumference of the outer edge 23, but may be along the entire circumference of the outer edge 23.

第２導体部分７４の長さＬ２は、６０ｍｍ以上１２０ｍｍ以下であると、ＵＨＦ帯におけるアンテナ利得が向上する。ＵＨＦ帯のアンテナ利得の向上の点で、長さＬ２は、７０ｍｍ以上が好ましく、８０ｍｍ以上がより好ましい。ＵＨＦ帯の利得の向上の点で、長さＬ２は、１１５ｍｍ以下が好ましく、１１０ｍｍ以下がより好ましい。 When the length L 2 of the second conductor portion 74 is 60 mm or more and 120 mm or less, the antenna gain in the UHF band is improved. In terms of improving the antenna gain in the UHF band, the length L 2 is preferably 70 mm or more, and more preferably 80 mm or more. In terms of improving the gain in the UHF band, the length L 2 is preferably 115 mm or less, more preferably 110 mm or less.

給電電極３５の給電点３６から、第１導体部分７３と第２導体部分７４との接点までの距離ｄは、７０ｍｍ以上１４０ｍｍ以下であると、ＵＨＦ帯におけるアンテナ利得が向上する。ＵＨＦ帯におけるアンテナ利得の向上の点で、距離ｄは、７５ｍｍ以上が好ましく、８０ｍｍ以上がより好ましい。また、ＵＨＦ帯におけるアンテナ利得の向上の点で、距離ｄは、１３５ｍｍ以下が好ましく、１３０ｍｍ以下がより好ましい。 When the distance d from the feeding point 36 of the feeding electrode 35 to the contact point between the first conductor portion 73 and the second conductor portion 74 is 70 mm or more and 140 mm or less, the antenna gain in the UHF band is improved. In terms of improving the antenna gain in the UHF band, the distance d is preferably 75 mm or more, more preferably 80 mm or more. Further, in terms of improving the antenna gain in the UHF band, the distance d is preferably 135 mm or less, more preferably 130 mm or less.

第２内部導体７２の幅ｗは、５ｍｍ以上であると、ＵＨＦ帯におけるアンテナ利得が向上する。ＵＨＦ帯におけるアンテナ利得が向上する点で、幅ｗは、６ｍｍ以上が好ましく、７ｍｍ以上がより好ましい。幅ｗの上限値は、特に限定されず、視界の遮りが過度にならない程度（例えば、２０ｍｍ）であればよい。 When the width w of the second inner conductor 72 is 5 mm or more, the antenna gain in the UHF band is improved. The width w is preferably 6 mm or more, more preferably 7 mm or more, in that the antenna gain in the UHF band is improved. The upper limit of the width w is not particularly limited, and may be such that the obstruction of the field of view is not excessive (for example, 20 mm).

第１内部導体７１は、第１導体部分７３との接続点７７から第１端部７５ａまで延伸する第３導体部分７５と、接続点７７から第２端部７６ａまで延伸する第４導体部分７６とを有する。第３導体部分７５の長さＬＰ１と第４導体部分７６の長さＬＰ２は、いずれも、６０ｍｍ以上であると、ＵＨＦ帯におけるアンテナ利得が向上する。ＵＨＦ帯におけるアンテナ利得が向上する点で、長さＬＰ１と長さＬＰ２は、いずれも、６５ｍｍ以上が好ましく、７０ｍｍ以上がより好ましい。長さＬＰ１と長さＬＰ２の各々の上限値は、特に限定されない。例えば、長さＬＰ１と長さＬＰ２との和は、金属部６３の内縁６４の全周長以下でよい。 The first inner conductor 71 includes a third conductor portion 75 extending from the connection point 77 with the first conductor portion 73 to the first end portion 75a, and a fourth conductor portion 76 extending from the connection point 77 to the second end portion 76a. And have. When the length L P1 of the third conductor portion 75 and the length L P2 of the fourth conductor portion 76 are both 60 mm or more, the antenna gain in the UHF band is improved. In terms of improving the antenna gain in the UHF band, the length L P1 and the length L P2 are both preferably 65 mm or more, and more preferably 70 mm or more. The upper limit of each of the length L P1 and the length L P2 is not particularly limited. For example, the sum of the length L P1 and the length L P2 may be less than or equal to the total circumference of the inner edge 64 of the metal portion 63.

図７は、窓ガラス取り付け構造２０１（図１）を有する実車を用いて、３つの周波数帯における、第２導体部分７４の長さＬ２に対するアンテナ利得の変化を実測した結果の一例を示す図である。図７の測定時において、図１及び図６に示す各部の寸法等の条件は、
第１導体部分７３の長さＬ１：４０ｍｍ
第２導体部分７４の長さＬ２：変化
ｗ：１０ｍｍ
ｄ：１００ｍｍ
第１内部導体７１：ループ状の金属部６３に沿ったループ形状
とした。 FIG. 7 is a diagram showing an example of the results of actual measurement of changes in antenna gain with respect to the length L2 of the second conductor portion 74 in three frequency bands using an actual vehicle having a window glass mounting structure 201 (FIG. 1). Is. At the time of measurement in FIG. 7, the conditions such as the dimensions of each part shown in FIGS. 1 and 6 are as follows.
Length of first conductor portion 73 L 1 : 40 mm
Length of second conductor portion 74 L 2 : Change w: 10 mm
d: 100 mm
First inner conductor 71: A loop shape is formed along the loop-shaped metal portion 63.

図７において、"ＦＭ２"は、ＦＭ放送波の帯域（７６ＭＨｚ～１０８ＭＨｚ）内の各周波数におけるアンテナ利得の平均値を表す。"ＤＡＢ２"、ＤＡＢ Ｂａｎｄ ＩＩＩの帯域（１７０ＭＨｚ～２４０ＭＨｚ）内の各周波数におけるアンテナ利得の平均値を表す。"ＤＴＶ２"は、地上デジタルテレビ放送波の帯域（例えば、４７３ＭＨｚ～７１３ＭＨｚ）内の各周波数におけるアンテナ利得の平均値を表す。"ＦＭ２"、"ＤＡＢ２"、"ＤＴＶ２"は、いずれも、水平偏波のときに給電電極３５から出力される受信信号から測定された値である。後述の実測結果についても同様である。 In FIG. 7, "FM2" represents the average value of the antenna gain at each frequency in the band (76 MHz to 108 MHz) of the FM broadcast wave. "DAB2" represents the average value of the antenna gain at each frequency in the band (170 MHz to 240 MHz) of DAB Band III. "DTV2" represents the average value of the antenna gain at each frequency in the band of the terrestrial digital television broadcast wave (for example, 473 MHz to 713 MHz). "FM2", "DAB2", and "DTV2" are all values measured from the received signal output from the feeding electrode 35 at the time of horizontal polarization. The same applies to the actual measurement results described later.

図７によれば、ＦＭ放送波及びＤＡＢ Ｂａｎｄ ＩＩＩの帯域におけるアンテナ利得を確保した上で、地上デジタルテレビ放送波の帯域におけるアンテナ利得を増大できる長さＬ２の範囲は、６０ｍｍ以上１２０ｍｍ以下となった。 According to FIG. 7, the range of the length L 2 that can increase the antenna gain in the band of the terrestrial digital television broadcasting wave while securing the antenna gain in the band of the FM broadcast wave and the DAB Band III is 60 mm or more and 120 mm or less. became.

図８は、窓ガラス取り付け構造２０１（図１）を有する実車を用いて、３つの周波数帯における、距離ｄに対するアンテナ利得の変化を実測した結果の一例を示す図である。図８の測定時において、図１及び図６に示す各部の寸法等の条件は、
Ｌ２：１００ｍｍ
ｄ：変化
とし、それら以外の条件は、図７の測定時と同じとした。 FIG. 8 is a diagram showing an example of the results of actual measurement of changes in antenna gain with respect to distance d in three frequency bands using an actual vehicle having a window glass mounting structure 201 (FIG. 1). At the time of measurement in FIG. 8, the conditions such as the dimensions of each part shown in FIGS. 1 and 6 are as follows.
L 2 : 100 mm
d: It was changed, and the conditions other than those were the same as those at the time of measurement in FIG. 7.

図８によれば、ＦＭ放送波及びＤＡＢ Ｂａｎｄ ＩＩＩの帯域におけるアンテナ利得を確保した上で、地上デジタルテレビ放送波の帯域におけるアンテナ利得を増大できる距離ｄの範囲は、７０ｍｍ以上１４０ｍｍ以下となった。 According to FIG. 8, the range of the distance d in which the antenna gain in the band of the FM broadcast wave and the DAB Band III can be increased and the antenna gain in the band of the terrestrial digital television broadcast wave can be increased is 70 mm or more and 140 mm or less. ..

図９は、窓ガラス取り付け構造２０１（図１）を有する実車を用いて、３つの周波数帯における、幅ｗに対するアンテナ利得の変化を実測した結果の一例を示す図である。図９の測定時において、図１及び図６に示す各部の寸法等の条件は、
Ｌ２：１００ｍｍ
ｄ：１８０ｍｍ
ｗ：変化
とし、それら以外の条件は、図７の測定時と同じとした。 FIG. 9 is a diagram showing an example of the results of actual measurement of changes in antenna gain with respect to the width w in three frequency bands using an actual vehicle having a window glass mounting structure 201 (FIG. 1). At the time of measurement in FIG. 9, the conditions such as the dimensions of each part shown in FIGS. 1 and 6 are as follows.
L 2 : 100 mm
d: 180 mm
w: It was changed, and the conditions other than those were the same as those at the time of measurement in FIG. 7.

図９によれば、ＦＭ放送波及びＤＡＢ Ｂａｎｄ ＩＩＩの帯域におけるアンテナ利得を確保した上で、地上デジタルテレビ放送波の帯域におけるアンテナ利得を増大できる幅ｗの範囲は、５ｍｍ以上となった。 According to FIG. 9, the range of the width w in which the antenna gain in the band of the FM broadcast wave and the DAB Band III can be increased and the antenna gain in the band of the terrestrial digital television broadcast wave can be increased is 5 mm or more.

図１０は、窓ガラス取り付け構造２０１（図１）を有する実車を用いて、３つの周波数帯における、ＬＰ１とＬＰ２を等長で変化させたときのアンテナ利得の変化を実測した結果の一例を示す図である。図１０の測定時において、図１及び図６に示す各部の寸法等の条件は、
Ｌ２：１００ｍｍ
第１内部導体７１：ループ状の金属部６３の一辺に沿った直線形状
とし、それら以外の条件は、図７の測定時と同じとした。 FIG. 10 is an example of the results of actual measurement of changes in antenna gain when LP1 and LP2 are changed at equal lengths in three frequency bands using an actual vehicle having a window glass mounting structure 201 (FIG. 1). It is a figure which shows. At the time of measurement in FIG. 10, the conditions such as the dimensions of each part shown in FIGS. 1 and 6 are as follows.
L 2 : 100 mm
The first inner conductor 71: has a linear shape along one side of the loop-shaped metal portion 63, and the other conditions are the same as those at the time of measurement in FIG. 7.

図１０によれば、ＦＭ放送波及びＤＡＢ Ｂａｎｄ ＩＩＩの帯域におけるアンテナ利得を確保した上で、地上デジタルテレビ放送波の帯域におけるアンテナ利得を増大できる長さＬＰ１と長さＬＰ２の範囲は、いずれも、６０ｍｍ以上となった。 According to FIG. 10, the range of the length L P1 and the length L P2 that can increase the antenna gain in the band of the terrestrial digital television broadcast wave while securing the antenna gain in the band of the FM broadcast wave and the DAB Band III is set. In each case, it was 60 mm or more.

以上、実施形態を説明したが、本開示の技術は上記の実施形態に限定されるものではない。他の実施形態の一部又は全部との組み合わせや置換などの種々の変形及び改良が可能である。 Although the embodiments have been described above, the technique of the present disclosure is not limited to the above embodiments. Various modifications and improvements such as combination and replacement with a part or all of other embodiments are possible.

１０ ガラス板
１１，１２ 主面
１３ 遮光膜
１４ 透過領域
２０ ガラス板
２１，２２ 主面
２３ 外縁
３１，３２ 給電線
３３，３５ 給電電極
３４，３６ 給電点
３７，３８ 接地電極
４０ 中間膜
５０ 平面状導体
５３，５４ フラットワイヤ
５６ 外周縁
５６ａ 第１長辺
５６ｂ 第２長辺
５６ｃ 第１短辺
５６ｄ 第２短辺
５９ 分割スリット
６０，６１ アンプ
６２ 車体
６３ 金属部
６４ 内縁
６５ 接着剤
６６ 窓枠
７０ 内部導体
７１ 第１内部導体
７２ 第２内部導体
７３ 第１導体部分
７４ 第２導体部分
７５ 第３導体部分
７６ 第４導体部分
７７ 接続点
１０１，１０２，１０３，１０４ 窓ガラス
１５５ 第１平面状導体
１５６ 第２平面状導体
２０１，２０２，２０３，２０４ 窓ガラス取り付け構造 10 Glass plate 11, 12 Main surface 13 Light-shielding film 14 Transmission area 20 Glass plate 21, 22 Main surface 23 Outer edge 31, 32 Feed line 33, 35 Feed electrode 34, 36 Feed point 37, 38 Ground electrode 40 Intermediate film 50 Planar Conductor 53,54 Flat wire 56 Outer peripheral edge 56a 1st long side 56b 2nd long side 56c 1st short side 56d 2nd short side 59 Divided slit 60, 61 Amplifier 62 Car body 63 Metal part 64 Inner edge 65 Adhesive 66 Window frame 70 Inner conductor 71 1st inner conductor 72 2nd inner conductor 73 1st conductor part 74 2nd conductor part 75 3rd conductor part 76 4th conductor part 77 Connection point 101, 102, 103, 104 Window glass 155 1st planar conductor 156 Second planar conductor 201, 202, 203, 204 Window glass mounting structure

Claims (23)

車体に形成される窓枠と、前記窓枠に取り付けられる窓ガラスと、を備え、
前記窓ガラスは、
ガラス板と、
前記ガラス板に対向する側の第１面と、前記第１面とは反対側の第２面とを有する誘電体と、
前記ガラス板と前記第１面との間に配置される平面状導体と、
前記ガラス板と前記第１面との間に配置される内部導体と、
前記第２面の側に設けられる給電電極と、を備え、
前記窓枠は、前記誘電体に対して前記第２面の側で前記誘電体の外縁に沿って配置される金属部を有し、
前記金属部は、前記誘電体を介して前記平面状導体に電気的に接続され、又は、前記金属部に電気的に接続される接地電極が前記第２面の側に設けられ、前記接地電極は、前記誘電体を介して前記平面状導体に電気的に接続され、
前記内部導体は、前記窓ガラスの平面視で前記誘電体を介して前記金属部に対向する第１内部導体と、前記第１内部導体に電気的に接続され且つ前記平面状導体に近接する第２内部導体と、を含み、
前記給電電極は、前記誘電体を介して前記平面状導体に対向し、ＶＨＦ帯からＵＨＦ帯までの帯域に含まれる電波の受信信号を出力する、窓ガラス取り付け構造。 A window frame formed on the vehicle body and a window glass attached to the window frame are provided.
The window glass is
With a glass plate
A dielectric having a first surface on the side facing the glass plate and a second surface on the side opposite to the first surface.
A planar conductor arranged between the glass plate and the first surface,
An internal conductor arranged between the glass plate and the first surface,
A feeding electrode provided on the side of the second surface is provided.
The window frame has a metal portion arranged along the outer edge of the dielectric on the side of the second surface with respect to the dielectric.
The metal portion is provided with a grounding electrode electrically connected to the planar conductor via the dielectric or electrically connected to the metal portion on the side of the second surface, and the grounding electrode is provided. Is electrically connected to the planar conductor via the dielectric.
The inner conductor is a first inner conductor that faces the metal portion via the dielectric in a plan view of the window glass, and is electrically connected to the first inner conductor and is close to the planar conductor. Including 2 internal conductors
The feeding electrode is a window glass mounting structure that faces the planar conductor via the dielectric and outputs a reception signal of radio waves included in the band from the VHF band to the UHF band. 前記給電電極は、前記窓ガラスの平面視で前記第２内部導体に前記誘電体を介して対向する、請求項１に記載の窓ガラス取り付け構造。 The window glass mounting structure according to claim 1, wherein the feeding electrode faces the second inner conductor via the dielectric in a plan view of the window glass. 前記給電電極は、前記窓ガラスの平面視で前記第２内部導体に前記誘電体を介して対向しない、請求項１に記載の窓ガラス取り付け構造。 The window glass mounting structure according to claim 1, wherein the feeding electrode does not face the second inner conductor via the dielectric in a plan view of the window glass. 前記第２内部導体は、前記窓ガラスの平面視の方向で前記平面状導体に対向する、請求項１から３のいずれか一項に記載の窓ガラス取り付け構造。 The window glass mounting structure according to any one of claims 1 to 3, wherein the second inner conductor faces the planar conductor in the plan view direction of the window glass. 前記第２内部導体は、前記窓ガラスの平面視の方向に直角な方向で前記平面状導体に対向する、請求項１から３のいずれか一項に記載の窓ガラス取り付け構造。 The window glass mounting structure according to any one of claims 1 to 3, wherein the second inner conductor faces the planar conductor in a direction perpendicular to the plan view direction of the window glass. 前記第２内部導体は、前記窓ガラスの平面視で、前記第１内部導体から離れる方向に延伸する第１導体部分と、前記第１導体部分が延伸する方向とは異なる方向に延伸する第２導体部分と、を有する、請求項１から３のいずれか一項に記載の窓ガラス取り付け構造。 In the plan view of the window glass, the second inner conductor has a first conductor portion extending in a direction away from the first inner conductor and a second conductor portion extending in a direction different from the stretching direction of the first conductor portion. The window glass mounting structure according to any one of claims 1 to 3, further comprising a conductor portion. 前記第２内部導体は、前記第１導体部分と前記第２導体部分とを含むＬ字状部分を有する、請求項６に記載の窓ガラス取り付け構造。 The window glass mounting structure according to claim 6, wherein the second inner conductor has an L-shaped portion including the first conductor portion and the second conductor portion. 前記第２導体部分の長さは、６０ｍｍ以上１２０ｍｍ以下である、請求項７に記載の窓ガラス取り付け構造。 The window glass mounting structure according to claim 7, wherein the length of the second conductor portion is 60 mm or more and 120 mm or less. 前記給電電極の給電点から、前記第１導体部分と前記第２導体部分との接点までの距離は、７０ｍｍ以上１４０ｍｍ以下である、請求項７又は８に記載の窓ガラス取り付け構造。 The window glass mounting structure according to claim 7 or 8, wherein the distance from the feeding point of the feeding electrode to the contact point between the first conductor portion and the second conductor portion is 70 mm or more and 140 mm or less. 前記第２内部導体は、前記第１導体部分と前記第２導体部分とを含むＴ字状部分を有する、請求項６に記載の窓ガラス取り付け構造。 The window glass mounting structure according to claim 6, wherein the second inner conductor has a T-shaped portion including the first conductor portion and the second conductor portion. 前記第２内部導体の幅は、５ｍｍ以上である、請求項６から１０のいずれか一項に記載の窓ガラス取り付け構造。 The window glass mounting structure according to any one of claims 6 to 10, wherein the width of the second inner conductor is 5 mm or more. 前記第１内部導体は、前記第１導体部分との接続点から第１端部まで延伸する第３導体部分と、前記接続点から第２端部まで延伸する第４導体部分とを有し、
前記第３導体部分と前記第４導体部分は、いずれも、６０ｍｍ以上である、請求項６から１１のいずれか一項に記載の窓ガラス取り付け構造。 The first inner conductor has a third conductor portion extending from the connection point with the first conductor portion to the first end portion, and a fourth conductor portion extending from the connection point to the second end portion.
The window glass mounting structure according to any one of claims 6 to 11, wherein both the third conductor portion and the fourth conductor portion are 60 mm or more. 前記金属部は、前記誘電体の外縁の全周に沿っている、請求項１から１２のいずれか一項に記載の窓ガラス取り付け構造。 The window glass mounting structure according to any one of claims 1 to 12, wherein the metal portion is along the entire circumference of the outer edge of the dielectric. 前記第１内部導体は、前記外縁の全周に沿っている、請求項１３に記載の窓ガラス取り付け構造。 The window glass mounting structure according to claim 13, wherein the first inner conductor is along the entire circumference of the outer edge. 前記金属部と前記第１内部導体との結合容量は、９［ｐＦ］以上である、請求項１から１４のいずれか一項に記載の窓ガラス取り付け構造。 The window glass mounting structure according to any one of claims 1 to 14, wherein the coupling capacity between the metal portion and the first inner conductor is 9 [pF] or more. 前記第２内部導体と前記平面状導体との結合容量は、１３［ｐＦ］以上である、請求項１から１５のいずれか一項に記載の窓ガラス取り付け構造。 The window glass mounting structure according to any one of claims 1 to 15, wherein the coupling capacitance between the second inner conductor and the planar conductor is 13 [pF] or more. 前記ガラス板と前記誘電体との間に、誘電性の中間膜を有し、
前記内部導体は、前記ガラス板と前記中間膜の間に配置され、
前記平面状導体は、前記中間膜と前記誘電体との間に配置される、請求項１から１６のいずれか一項に記載の窓ガラス取り付け構造。 A dielectric interlayer film is provided between the glass plate and the dielectric.
The inner conductor is arranged between the glass plate and the interlayer film.
The window glass mounting structure according to any one of claims 1 to 16, wherein the planar conductor is arranged between the interlayer film and the dielectric. 前記ガラス板と前記誘電体との間に、誘電性の中間膜を有し、
前記平面状導体は、前記ガラス板と前記中間膜の間に配置され、
前記内部導体は、前記中間膜と前記誘電体との間に配置される、請求項１から１６のいずれか一項に記載の窓ガラス取り付け構造。 A dielectric interlayer film is provided between the glass plate and the dielectric.
The planar conductor is arranged between the glass plate and the interlayer film.
The window glass mounting structure according to any one of claims 1 to 16, wherein the internal conductor is arranged between the interlayer film and the dielectric. 前記平面状導体の外周縁は、第１長辺と第２長辺を有する略四角形であり、
前記平面状導体は、前記第１長辺又は前記第２長辺に略平行に延伸する少なくとも一本の分割スリットにより第１平面状導体と第２平面状導体に分離されている、請求項１から１８のいずれか一項に記載の窓ガラス取り付け構造。 The outer peripheral edge of the planar conductor is a substantially quadrangle having a first long side and a second long side.
Claim 1 that the planar conductor is separated into a first planar conductor and a second planar conductor by at least one dividing slit extending substantially parallel to the first long side or the second long side. The window glass mounting structure according to any one of 18 to 18. 前記給電電極は、前記窓ガラスの平面視で前記分割スリットと交差する、請求項１９に記載の窓ガラス取り付け構造。 The window glass mounting structure according to claim 19, wherein the feeding electrode intersects the dividing slit in a plan view of the window glass. 前記平面状導体に接続される正極と、
前記平面状導体に接続される負極と、を備え、
前記平面状導体は、前記正極と前記負極との間の電圧印加により発熱する、請求項１から２０のいずれか一項に記載の窓ガラス取り付け構造。 A positive electrode connected to the planar conductor and
With a negative electrode connected to the planar conductor,
The window glass mounting structure according to any one of claims 1 to 20, wherein the planar conductor generates heat by applying a voltage between the positive electrode and the negative electrode. 前記給電電極は、前記帯域に含まれる複数の放送波の受信信号を出力する、請求項１から２１のいずれか一項に記載の窓ガラス取り付け構造。 The window glass mounting structure according to any one of claims 1 to 21, wherein the feeding electrode outputs a reception signal of a plurality of broadcast waves included in the band. 前記給電電極は、ＶＨＦ帯に含まれるＦＭ放送波とＤＡＢ Ｂａｎｄ ＩＩＩの放送波との少なくとも一方の放送波の受信信号と、ＵＨＦ帯に含まれる地上デジタルテレビ放送波の受信信号とを出力する、請求項２２に記載の窓ガラス取り付け構造。 The feeding electrode outputs a reception signal of at least one of the FM broadcast wave included in the VHF band and the broadcast wave of DAB Band III, and the reception signal of the terrestrial digital television broadcast wave included in the UHF band. The window glass mounting structure according to claim 22.
JP2020121190A 2020-07-15 2020-07-15 Window pane mounting structure Pending JP2022018233A (en)

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US8466842B2 (en) 2010-10-22 2013-06-18 Pittsburgh Glass Works, Llc Window antenna
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