JPH1013125A - Glass antenna for vehicle - Google Patents

Glass antenna for vehicle

Info

Publication number
JPH1013125A
JPH1013125A JP16217796A JP16217796A JPH1013125A JP H1013125 A JPH1013125 A JP H1013125A JP 16217796 A JP16217796 A JP 16217796A JP 16217796 A JP16217796 A JP 16217796A JP H1013125 A JPH1013125 A JP H1013125A
Authority
JP
Japan
Prior art keywords
antenna
antenna conductor
interval
conductor
glass plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP16217796A
Other languages
Japanese (ja)
Inventor
Masahito Kubota
聖人 窪田
Fumitaka Terajima
文貴 寺島
Koji Tabata
耕司 田畑
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AGC Inc
Original Assignee
Asahi Glass Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Priority to JP16217796A priority Critical patent/JPH1013125A/en
Publication of JPH1013125A publication Critical patent/JPH1013125A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To obtain a non-directional glass antenna which is superior in reception sensitivity by permitting a max. interval within the intervals between respective sides of antenna conductors and respective opposed vehicle body opening parts, to be more than twice the specified times of the min. interval. SOLUTION: On a side window glass plate 2, the interval A in a right horizontal direction between first antenna conductor 3 being an outer most periphery and the vehicle body opening part 1, the interval B in an upward direction between the first conductor 3 and the vehicle body opening part 1, the interval C in a left horizontal direction between the first antenna conductor 3 and the vehicle body-opening part 1 and the interval D in a downward direction between the first antenna conductor 3 and the vehicle body-opening part 1 are set. Then, the max. interval within the intervals A-D is made to be more than the 1.5 times the interval of the min. interval. When it is more than 1.5 times, reception sensitivity is normally improved by more than 2-3dB, as compared with a case when it is less than 1.5 times. Thus, even when an area for providing the antenna conductors 3 and 5 is a small automobile, installing in a small space providing is possible. A sufficient visual field is secured, and a sufficient reception characteristic is obtained.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明はラジオ及びテレビ放
送等の受信用に適した車両用ガラスアンテナに関し、特
に自動車のサイド窓ガラス板に設けるのに適した車両用
ガラスアンテナに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular glass antenna suitable for receiving radio and television broadcasts, and more particularly to a vehicular glass antenna suitable for being provided on a side window glass plate of an automobile.

【0002】[0002]

【従来の技術】従来、図6に示すように自動車の後部の
サイド窓ガラス板2上に、導体パターンからなるアンテ
ナ導体3と給電点4とを設け、これをアンテナとして利
用することによりFM放送、テレビ放送等を受信してい
た。この従来例ではアンテナ導体3の各辺と相対向する
各車体開口部1との間隔は略等間隔であった。
2. Description of the Related Art Conventionally, as shown in FIG. 6, an antenna conductor 3 composed of a conductor pattern and a feed point 4 are provided on a side window glass plate 2 at the rear of an automobile, and this is used as an antenna to perform FM broadcasting. , Television broadcasts and the like. In this conventional example, the distance between each side of the antenna conductor 3 and each of the vehicle body opening portions 1 facing each other was substantially equal.

【0003】[0003]

【発明が解決しようとする課題】上記従来のアンテナ
は、指向性の強い環境下では、ある特定の方向からの放
送波はほとんど受信できない欠点があった。すなわち、
図8は図6に示す従来例の指向特性図であり、水平偏波
面の指向特性を示し、図8よりわかる通り無指向特性に
はなっておらず、極端に受信感度が悪い方向ができてし
まう。
The above-mentioned conventional antenna has a drawback that a broadcast wave from a specific direction can hardly be received in an environment having a high directivity. That is,
FIG. 8 is a directional characteristic diagram of the conventional example shown in FIG. 6, which shows the directional characteristic of the horizontal polarization plane. As can be seen from FIG. I will.

【0004】また、例えば、RV車等では後部窓ガラス
板が狭いために、アンテナ導体を設けうるエリアが小さ
く、小スペースに設けることができ充分な受信特性を得
られるガラスアンテナの開発が望まれていた。
[0004] Further, for example, in the case of RV vehicles, the rear window glass plate is narrow, so that the area where the antenna conductor can be provided is small, and it is desired to develop a glass antenna which can be provided in a small space and has sufficient receiving characteristics. I was

【0005】本発明は、上記の問題点に鑑み、従来技術
の有する前述の欠点を解消することを目的とする。
[0005] In view of the above problems, an object of the present invention is to eliminate the above-mentioned disadvantages of the prior art.

【0006】[0006]

【課題を解決するための手段】本発明は、車両の窓ガラ
ス板に給電点が設けられ、アンテナ導体が給電点から窓
ガラス板周縁部と略平行に延長されて設けられてなる車
両用ガラスアンテナにおいて、窓ガラス板は略多角形状
であり、窓ガラス板の2辺以上に亙るようにアンテナ導
体が設けられており、アンテナ導体の各辺と相対向する
各車体開口部との間隔のうち最大の間隔が最小の間隔の
1.5倍以上であることを特徴とする車両用ガラスアン
テナを提供する。
SUMMARY OF THE INVENTION The present invention provides a vehicle glass comprising a vehicle window glass plate provided with a feed point, and an antenna conductor extending from the feed point substantially parallel to the periphery of the window glass plate. In the antenna, the window glass plate has a substantially polygonal shape, and antenna conductors are provided so as to extend over two or more sides of the window glass plate. Provided is a glass antenna for a vehicle, wherein the maximum interval is at least 1.5 times the minimum interval.

【0007】また、アンテナ導体が複数本であり、最外
周のアンテナ導体の各辺と相対向する各車体開口部との
間隔のうち最大の間隔が最小の間隔の1.5倍以上であ
る上記の車両用ガラスアンテナを提供する。
[0007] Further, there is a plurality of antenna conductors, and the maximum interval among the intervals between each side of the outermost antenna conductor and each of the opposing body openings is at least 1.5 times the minimum interval. A glass antenna for vehicles.

【0008】また、アンテナ導体は第1のアンテナ導体
と第2のアンテナ導体とからなり、窓ガラス板面のいず
れか一方の面から見るときに、給電点に一端を接続した
第1のアンテナ導体は給電点を起点として時計回り方向
に延長されてなり、給電点に一端を接続した第2のアン
テナ導体は給電点を起点として第1のアンテナ導体に囲
まれるように反時計回りに延長されてなる上記の車両用
ガラスアンテナを提供する。
The antenna conductor comprises a first antenna conductor and a second antenna conductor, and when viewed from either one of the surfaces of the window glass plate, the first antenna conductor having one end connected to the feeding point. Is extended clockwise starting from the feed point, and the second antenna conductor having one end connected to the feed point is extended counterclockwise so as to be surrounded by the first antenna conductor starting from the feed point. The glass antenna for vehicles described above is provided.

【0009】また、さらに、アンテナ導体の内側に補助
アンテナ導体が設けられてなる上記の車両用ガラスアン
テナを提供する。
Further, the present invention provides the above-mentioned glass antenna for a vehicle, wherein an auxiliary antenna conductor is provided inside the antenna conductor.

【0010】[0010]

【発明の実施の形態】以下、本発明を図面に従って詳細
に説明する。図1は本発明の自動車用ガラスアンテナ装
置の代表例の構成図である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a configuration diagram of a typical example of a glass antenna device for a vehicle according to the present invention.

【0011】図1において、1は車体開口部、2は略平
行四辺形の自動車の後部のサイド窓ガラス板、3は給電
点を起点として時計回り方向に延長されている第1のア
ンテナ導体、4は給電点、5は給電点を起点として反時
計回り方向に延長されている第2のアンテナ導体、6は
第1のアンテナ導体と第2のアンテナ導体の内側に設け
られる補助アンテナ導体、6aは接続導体、A、B、
C、D、K、L、Mは間隔である。なお、図1以外の図
面で図1と同番号、同符号の部分の名称は図1と同名称
とする。
In FIG. 1, 1 is a vehicle body opening, 2 is a side window glass plate at the rear of a substantially parallelogram-shaped automobile, 3 is a first antenna conductor extending clockwise starting from a feed point, 4 is a feeding point, 5 is a second antenna conductor extending counterclockwise starting from the feeding point, 6 is an auxiliary antenna conductor provided inside the first and second antenna conductors, 6a Are connection conductors, A, B,
C, D, K, L, and M are intervals. It should be noted that, in the drawings other than FIG.

【0012】図1において、第1のアンテナ導体3は給
電点4を起点とし、右下方に所定距離延長した後、略右
横方向に曲折し、さらにサイド窓ガラス板2の周縁部に
ほぼ平行に時計回り方向に、給電点4付近まで延長され
ている。
In FIG. 1, the first antenna conductor 3 extends from the feed point 4 as a starting point, extends a predetermined distance downward and to the right, bends substantially in the right lateral direction, and is substantially parallel to the peripheral edge of the side window glass plate 2. In the clockwise direction, it is extended to the vicinity of the feeding point 4.

【0013】これに対して、第2のアンテナ導体5は給
電点4より略下方向に延長され、第1のアンテナ導体3
と所定間隔で第1のアンテナ導体3に囲まれるように反
時計回り方向に延長され、給電点4付近まで延長されて
いる。
On the other hand, the second antenna conductor 5 extends substantially below the feed point 4 and the first antenna conductor 3
At a predetermined interval, and extends counterclockwise so as to be surrounded by the first antenna conductor 3, and extends to the vicinity of the feeding point 4.

【0014】換言すれば、給電点にそれぞれの一端を接
続した第1のアンテナ導体と第2のアンテナ導体とが、
第1のアンテナ導体3は給電点を起点として時計回り方
向に延長され、第2のアンテナ導体5は給電点を起点と
して第1のアンテナ導体3に囲まれるように反時計回り
に延長されて、サイド窓ガラス板2に設けられている。
In other words, the first antenna conductor and the second antenna conductor, each having one end connected to the feeding point,
The first antenna conductor 3 extends clockwise starting from the feeding point, and the second antenna conductor 5 extends counterclockwise starting from the feeding point so as to be surrounded by the first antenna conductor 3. It is provided on the side window glass plate 2.

【0015】本発明では、第1のアンテナ導体と第2の
アンテナ導体との位置関係はこれに限定されず、給電点
にそれぞれの一端を接続した第1のアンテナ導体と第2
のアンテナ導体とが、第1のアンテナ導体は給電点を起
点として時計回り方向に延長され、第2のアンテナ導体
は給電点を起点として第1のアンテナ導体を囲むように
反時計回り方向に延長されて、窓ガラス板に設けられて
いてもよい。
In the present invention, the positional relationship between the first antenna conductor and the second antenna conductor is not limited to this, and the first antenna conductor having one end connected to the feeding point and the second antenna conductor are connected to each other.
The first antenna conductor extends clockwise starting from the feed point, and the second antenna conductor extends counterclockwise surrounding the first antenna conductor starting from the feed point. Then, it may be provided on a window glass plate.

【0016】第1のアンテナ導体3は給電点4を起点と
し、必ずしもサイド窓ガラス板2の周縁部にほぼ平行に
時計回り方向に、給電点4付近まで延長されることを要
せず、略多角形状のサイド窓ガラス板の2辺以上に亙る
ように第1のアンテナ導体3が延長されていればよい。
The first antenna conductor 3 starts from the feed point 4 and does not need to be extended in the clockwise direction substantially parallel to the peripheral edge of the side window glass plate 2 to the vicinity of the feed point 4, but substantially. It is sufficient that the first antenna conductor 3 extends over two or more sides of the polygonal side window glass plate.

【0017】第2のアンテナ導体5は給電点4を起点と
し、必ずしもサイド窓ガラス板2の周縁部にほぼ平行に
反時計回り方向に、給電点4付近まで延長されることを
要せず、略多角形状のサイド窓ガラス板の2辺以上に亙
るように第2のアンテナ導体5が延長されていればよ
い。
The second antenna conductor 5 does not need to extend from the feed point 4 to the vicinity of the feed point 4 in a counterclockwise direction substantially parallel to the peripheral edge of the side window glass plate 2. It is sufficient that the second antenna conductor 5 extends over two or more sides of the substantially polygonal side window glass plate.

【0018】ただし、第1のアンテナ導体と第2のアン
テナ導体ともサイド窓ガラス板2の周縁部にほぼ平行に
一周するように給電点4付近まで延長されていることが
受信感度向上のためには好ましい。また、アンテナ導体
は複数本である必要はない。しかし、アンテナ導体が複
数本である場合、時計回り方向及び反時計回り方向に延
長され設けられるアンテナ導体がそれぞれあることが指
向性向上のためには好ましい。
However, both the first antenna conductor and the second antenna conductor are extended to the vicinity of the feeding point 4 so as to make a round substantially in parallel with the peripheral portion of the side window glass plate 2 in order to improve the receiving sensitivity. Is preferred. Also, there is no need to have a plurality of antenna conductors. However, when there are a plurality of antenna conductors, it is preferable that there are antenna conductors extending in the clockwise direction and the counterclockwise direction, respectively, in order to improve directivity.

【0019】しかし、時計回り方向及び反時計回り方向
に延長され設けられる複数のアンテナ導体がそれぞれな
くとも使用できる。
However, a plurality of antenna conductors extending in the clockwise direction and the counterclockwise direction can be used without each.

【0020】第1のアンテナ導体と第2のアンテナ導体
とは別に1本又は複数本のアンテナ導体を給電点4を起
点とし、サイド窓ガラス板2の周縁部にほぼ平行に時計
回り方向又は反時計回り方向に延長してもよい。
In addition to the first antenna conductor and the second antenna conductor, one or a plurality of antenna conductors are used starting from the feed point 4 in a clockwise or counterclockwise direction substantially parallel to the periphery of the side window glass plate 2. It may be extended clockwise.

【0021】補助アンテナ導体6は必要に応じて設けら
れる。受信感度向上のためには設けることが好ましい。
補助アンテナ導体6を設ける場合には、設けない場合と
比較してFM放送帯等の高周波域の受信感度が、通常、
2dB程度向上する。
The auxiliary antenna conductor 6 is provided as needed. It is preferable to provide it for improving the receiving sensitivity.
In the case where the auxiliary antenna conductor 6 is provided, the reception sensitivity in a high frequency range such as an FM broadcast band is usually higher than the case where the auxiliary antenna conductor 6 is not provided.
It is improved by about 2 dB.

【0022】補助アンテナ導体6は、第1のアンテナ導
体と第2のアンテナ導体の内側に設けられることが受信
感度向上の面で好ましい。しかし、これに限定されず、
第1のアンテナ導体と第2のアンテナ導体との間に設け
られてもよく、また、第1のアンテナ導体と第2のアン
テナ導体の外側に設けられてもよい。
The auxiliary antenna conductor 6 is preferably provided inside the first antenna conductor and the second antenna conductor from the viewpoint of improving the receiving sensitivity. However, it is not limited to this,
It may be provided between the first antenna conductor and the second antenna conductor, or may be provided outside the first antenna conductor and the second antenna conductor.

【0023】また、補助アンテナ導体を複数本としても
よく、さらには、略T字状、略L字状、ループ状等の形
状の位相調整エレメントを1本又は複数本、アンテナ導
体に設けてもよい。
Further, a plurality of auxiliary antenna conductors may be provided, and one or more phase adjusting elements having a substantially T-shape, a substantially L-shape, a loop shape or the like may be provided on the antenna conductor. Good.

【0024】間隔M、間隔Lは、第1のアンテナ導体3
の長さ等との関係で適宜設定される。両アンテナ導体
3、5は重なり合わなくてもよいが、重なり合う場合に
は、両アンテナ導体3、5が重なり合う部分の間隔Kは
50mm以下、0.2mm以上が好ましい。50mmを
超えると受信感度が無指向性とならず、0.2mm未満
であると、製造上困難等の問題が生ずるからである。
The interval M and the interval L are determined by the first antenna conductor 3
It is set as appropriate in relation to the length and the like. The two antenna conductors 3 and 5 do not have to overlap, but when they do overlap, the interval K between the overlapping portions of the two antenna conductors 3 and 5 is preferably 50 mm or less and 0.2 mm or more. If it exceeds 50 mm, the receiving sensitivity does not become non-directional, and if it is less than 0.2 mm, problems such as difficulty in production occur.

【0025】また、第1のアンテナ導体3と第2のアン
テナ導体5とが間隔Kにより重なり合う部分は、受信感
度の見地から、両アンテナの中央から見た角度で90°
以上が適当であり、180°以上がより望ましく、27
0°以上が特に望ましい。
Further, the portion where the first antenna conductor 3 and the second antenna conductor 5 overlap with each other at the interval K is 90 ° from the center of both antennas in terms of reception sensitivity.
The above is appropriate, more preferably 180 ° or more,
0 ° or more is particularly desirable.

【0026】所望の受信周波数の波長をλ、ガラスアン
テナの短縮率をKとしたとき、第1のアンテナ導体3、
第2のアンテナ導体5のそれぞれの導体長はともに、
(λK)/2〜2λKの範囲が好ましい。この範囲内で
ある場合にはこの範囲外である場合と比較して数dB受
信感度がよくなる。補助アンテナ導体6の導体長は、
(λK)/4〜λKの範囲が好ましい。この範囲内であ
る場合にはこの範囲外である場合と比較して数dB受信
感度がよくなる。なお、ガラス短縮率Kは0.64であ
り、λは、通常、放送帯の略中心周波数に設定する。
Assuming that the wavelength of the desired reception frequency is λ and the shortening rate of the glass antenna is K, the first antenna conductor 3
The conductor length of each of the second antenna conductors 5 is
The range of (λK) / 2 to 2λK is preferable. When it is within this range, the receiving sensitivity is improved by several dB as compared with the case outside this range. The conductor length of the auxiliary antenna conductor 6 is
The range of (λK) / 4 to λK is preferable. When it is within this range, the receiving sensitivity is improved by several dB as compared with the case outside this range. Note that the glass shortening rate K is 0.64, and λ is usually set to approximately the center frequency of the broadcast band.

【0027】図1において、間隔Aは最外周である第1
のアンテナ導体3と車体開口部1との右横方向の間隔、
間隔Bは第1のアンテナ導体3と車体開口部1との上方
向の間隔、間隔Cは第1のアンテナ導体3と車体開口部
1との左横方向の間隔、間隔Dは第1のアンテナ導体3
と車体開口部1との下方向の間隔である。
In FIG. 1, the interval A is the first outermost circumference.
Distance between the antenna conductor 3 and the vehicle body opening 1 in the right lateral direction,
The interval B is the upward interval between the first antenna conductor 3 and the vehicle body opening 1, the interval C is the left lateral interval between the first antenna conductor 3 and the vehicle body opening 1, and the interval D is the first antenna. Conductor 3
And the vehicle body opening 1 in the downward direction.

【0028】間隔A、B、C、Dは、受信感度向上のた
めに、それぞれ、通常、5mm以上が好ましく、10m
m以上が特に好ましい。
The intervals A, B, C, and D are usually preferably 5 mm or more, respectively, and are preferably 10 m or more in order to improve reception sensitivity.
m or more is particularly preferred.

【0029】間隔A、B、C、Dのうちの最大の間隔
が、最小の間隔の1.5倍以上あることを要する。1.
5倍以上ある場合には、1.5倍未満である場合と比較
して、通常、2〜3dB以上受信感度が向上する。ま
た、間隔A、B、C、Dのうちの最大の間隔が、最小の
間隔の2.0倍以上あることが好ましい。2.0倍以上
ある場合には、2.0倍未満である場合と比較して、通
常、1〜2dB以上受信感度が向上する。また、間隔
A、B、C、Dのうちの最大の間隔が、最小の間隔の
3.0倍以上あることがより好ましい。3.0倍以上あ
る場合には、3.0倍未満である場合と比較して、通
常、1〜2dB以上受信感度が向上する。
It is necessary that the maximum interval among the intervals A, B, C, and D is at least 1.5 times the minimum interval. 1.
When it is 5 times or more, the reception sensitivity is usually improved by 2 to 3 dB or more as compared with the case where it is less than 1.5 times. It is preferable that the maximum interval among the intervals A, B, C, and D is 2.0 times or more the minimum interval. When it is 2.0 times or more, the reception sensitivity is usually improved by 1 to 2 dB or more as compared with the case of less than 2.0 times. It is more preferable that the maximum interval among the intervals A, B, C, and D is 3.0 times or more the minimum interval. When the ratio is 3.0 times or more, the reception sensitivity is usually improved by 1 to 2 dB or more as compared with the case where the ratio is less than 3.0 times.

【0030】さらに、上記条件下において、間隔A、
B、C、Dのうちの1つのみが、相対向する間隔(例え
ば、間隔Aと間隔Cとが相対向する間隔に相当)より、
1.5倍以上あることが好ましい。1.5倍以上ある場
合には、1.5倍未満である場合と比較して、通常、2
〜3dB以上受信感度が向上する。また、間隔A、B、
C、Dのうちの1つのみが、相対向する間隔より、2.
0倍以上あることがより好ましい。2.0倍以上ある場
合には、2.0倍未満である場合と比較して、通常、1
〜2dB以上受信感度が向上する。また、間隔A、B、
C、Dのうちの1つのみが、相対向する間隔より、3.
0倍以上あることが特に好ましい。3.0倍以上ある場
合には、3.0倍未満である場合と比較して、通常、1
〜2dB以上受信感度が向上する。
Further, under the above conditions, the interval A,
Only one of B, C, and D is closer to each other than the opposing interval (for example, the interval A and the interval C correspond to the opposing interval).
It is preferably 1.5 times or more. When it is 1.5 times or more, it is usually 2 times smaller than when it is less than 1.5 times.
Up to 3 dB or more, the receiving sensitivity is improved. Also, intervals A, B,
Only one of C and D has a distance of 2.
More preferably, it is 0 times or more. When it is 2.0 times or more, it is usually 1 compared with the case of less than 2.0 times.
Up to 2 dB or more, the receiving sensitivity is improved. Also, intervals A, B,
2. Only one of C and D has an interval of opposing.
It is particularly preferred that the number be 0 times or more. When the ratio is 3.0 times or more, it is usually 1
Up to 2 dB or more, the receiving sensitivity is improved.

【0031】補助アンテナ導体6の形状については、図
1では略T字状であった。しかし、これに限定されず、
略L字状、ループ状等の形状であってもよい。
The shape of the auxiliary antenna conductor 6 is substantially T-shaped in FIG. However, it is not limited to this,
The shape may be substantially L-shaped, loop-shaped, or the like.

【0032】給電点4の位置については、受信特性上は
特に制限を受けにくいが、視界確保のためには極力窓ガ
ラス板の周縁部付近に設けられることが望ましい。
The position of the feeding point 4 is not particularly limited in terms of reception characteristics, but is preferably provided as close as possible to the periphery of the window glass plate in order to secure a view.

【0033】第1のアンテナ導体3、第2のアンテナ導
体5、給電点4等の導体パターンには、銀ペーストを窓
ガラス板に印刷し、焼成したものを使用したが、これに
限られず、他の金属ペーストであっても使用できる他、
銅等の金属線、金属板、又は金属箔を窓ガラス板に接着
剤等により接着等してもよい。
For the conductor patterns of the first antenna conductor 3, the second antenna conductor 5, the feeding point 4, and the like, a silver paste printed on a window glass plate and fired was used, but the present invention is not limited to this. Other metal pastes can be used,
A metal wire such as copper, a metal plate, or a metal foil may be bonded to the window glass plate with an adhesive or the like.

【0034】また、窓ガラス板に設けられるアンテナ導
体は、AM、FMラジオ放送帯用に限定されず、テレビ
VHF帯用、テレビUHF帯用及び電話用等に応用でき
る。
Further, the antenna conductor provided on the window glass plate is not limited to the AM and FM radio broadcasting bands, but can be applied to television VHF bands, television UHF bands, telephones, and the like.

【0035】また、本発明においては、自動車に設けら
れるアンテナ導体の数は限定されず、また、本発明のガ
ラスアンテナと、ポールアンテナ等の他のアンテナ及び
/又は他のガラスアンテナとの間でダイバーシティ受信
を行ってもよい。
In the present invention, the number of antenna conductors provided on an automobile is not limited, and the antenna between the glass antenna of the present invention and another antenna such as a pole antenna and / or another glass antenna may be provided. Diversity reception may be performed.

【0036】また、本発明のガラスアンテナを車両の片
側の例えばサイド窓ガラス板に設けてもよい。しかし、
両側のサイド窓ガラス板に設け、両ガラスアンテナ間で
ダイバーシティ受信を行うことが指向性向上のために好
ましい。
The glass antenna of the present invention may be provided on one side of a vehicle, for example, on a side window glass plate. But,
It is preferable to provide the antenna on both side window glass plates and perform diversity reception between both glass antennas in order to improve directivity.

【0037】また、本発明において、アンテナ導体が設
けられる窓ガラス板はその性質よりサイド窓ガラス板、
特に後部サイド窓ガラス板が最も適している。しかし、
サイド窓ガラス板に限定されず、後部窓ガラス板、前部
窓ガラス板、ルーフ窓ガラス板等であってもよい。
In the present invention, the window glass plate on which the antenna conductor is provided is a side window glass plate due to its properties.
Particularly, a rear side window glass plate is most suitable. But,
It is not limited to the side window glass plate, and may be a rear window glass plate, a front window glass plate, a roof window glass plate, or the like.

【0038】本発明において、車体開口部とは窓ガラス
板がはめ込まれる車体の開口部であって車体アースとな
るべきものをいい、金属等の導電性材料で構成されてい
るものをいう。
In the present invention, the vehicle body opening means an opening in the vehicle body into which the window glass plate is to be fitted, which should be a vehicle body ground, and is made of a conductive material such as metal.

【0039】なお、図2〜5に図1のタイプとは別のタ
イプの本発明の構成図を示す。
FIGS. 2 to 5 show different types of the present invention from the type shown in FIG.

【0040】[0040]

【実施例】【Example】

(例1)実施例として、図1のような車両用ガラスアン
テナを製作した。サイド窓ガラス板は自動車左側のもの
を使用し、サイド窓ガラス板の寸法は略縦方向400m
m、略横方向550mmとした。第1のアンテナ導体3
の導体長は1430mm、第2のアンテナ導体5の導体
長は1370mm、間隔Aは105mm、間隔B、C、
Dはそれぞれ25mm、間隔Mを270mm、間隔Lを
400mm、間隔Kを15mmとした。
Example 1 As an example, a glass antenna for a vehicle as shown in FIG. 1 was manufactured. The side window glass plate is the one on the left side of the car. The size of the side window glass plate is approximately 400 m in the vertical direction.
m, approximately 550 mm in the horizontal direction. First antenna conductor 3
, The conductor length of the second antenna conductor 5 is 1370 mm, the interval A is 105 mm, the intervals B, C,
D was 25 mm, M was 270 mm, L was 400 mm, and K was 15 mm.

【0041】また、給電点4は正方形とし、その寸法は
15mm×15mmとした。補助アンテナ導体6の長さ
は接続導体6aとの交点から右回りに490mm、左回
りに270mmとした。また、各々のアンテナ導体の間
隔は15mmとした。例1の受信特性は図7に示す通り
であり、水平偏波面の指向特性であって、受信周波数8
0MHzにて測定した。また、図7の上方向が自動車前
方向、下方向が自動車後方向である。
The feeding point 4 was square, and its size was 15 mm × 15 mm. The length of the auxiliary antenna conductor 6 was 490 mm clockwise and 270 mm counterclockwise from the intersection with the connection conductor 6a. The distance between the antenna conductors was 15 mm. The reception characteristic of Example 1 is as shown in FIG.
It was measured at 0 MHz. The upper direction in FIG. 7 is the front direction of the vehicle, and the lower direction is the rear direction of the vehicle.

【0042】(例2)比較例として、図9のような車両
用ガラスアンテナを製作した。サイド窓ガラス板は例1
と同じものを使用した。第1のアンテナ導体3の導体長
は1430mm、第2のアンテナ導体5の導体長は13
70mm、間隔A、B、C、Dはそれぞれ25mm、間
隔Mを270mm、間隔Lを400mm、間隔Kを15
mmとした。
Example 2 As a comparative example, a vehicle glass antenna as shown in FIG. 9 was manufactured. Example 1 for side window glass
The same as was used. The conductor length of the first antenna conductor 3 is 1430 mm, and the conductor length of the second antenna conductor 5 is 13
70 mm, intervals A, B, C, and D are each 25 mm, interval M is 270 mm, interval L is 400 mm, and interval K is 15
mm.

【0043】また、給電点4は正方形とし、その寸法は
15mm×15mmとした。補助アンテナ導体6の長さ
は接続導体6aとの交点から右回りに490mm、左回
りに270mmとした。また、各々のアンテナ導体の間
隔は15mmとした。
The feeding point 4 was a square, and its size was 15 mm × 15 mm. The length of the auxiliary antenna conductor 6 was 490 mm clockwise and 270 mm counterclockwise from the intersection with the connection conductor 6a. The distance between the antenna conductors was 15 mm.

【0044】例2の受信特性は図10に示す通りであ
り、水平偏波面の指向特性であって、受信周波数80M
Hzにて測定した。また、図10の上方向が自動車前方
向、下方向が自動車後方向である。
The reception characteristics of Example 2 are as shown in FIG.
Hz. The upper direction in FIG. 10 is the front direction of the vehicle, and the lower direction is the rear direction of the vehicle.

【0045】[0045]

【発明の効果】本発明では、従来例と比較してはるかに
受信感度に優れ、無指向性のガラスアンテナを得ること
ができる。また、例えば、RV車等の後部窓ガラス板が
狭いために、アンテナ導体を設けうるエリアが小さい自
動車であっても、小スペースに設けることができ、充分
な視野を確保でき、十分な受信特性を得られる。
According to the present invention, it is possible to obtain an omnidirectional glass antenna having much higher reception sensitivity than the conventional example. Also, for example, since the rear window glass plate of an RV car is narrow, even an automobile in which an antenna conductor can be provided in a small area can be provided in a small space, a sufficient field of view can be secured, and sufficient reception characteristics can be obtained. Can be obtained.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の自動車用ガラスアンテナの代表例の構
成図
FIG. 1 is a configuration diagram of a typical example of an automotive glass antenna according to the present invention.

【図2】図1のタイプとは別のタイプの本発明の構成図FIG. 2 is a block diagram of a different type of the present invention from the type of FIG. 1;

【図3】図1のタイプとは別のタイプの本発明の構成図FIG. 3 is a block diagram of a different type of the present invention from the type of FIG.

【図4】図1のタイプとは別のタイプの本発明の構成図FIG. 4 is a block diagram of a different type of the present invention from the type of FIG. 1;

【図5】図1のタイプとは別のタイプの本発明の構成図FIG. 5 is a block diagram of another type of the present invention different from the type of FIG. 1;

【図6】従来例の構成図FIG. 6 is a configuration diagram of a conventional example.

【図7】例1の水平偏波面の指向特性図FIG. 7 is a directional characteristic diagram of a horizontal polarization plane of Example 1.

【図8】従来例である図6の車両用ガラスアンテナの水
平偏波面の指向特性図
FIG. 8 is a directional characteristic diagram of a horizontal polarization plane of the glass antenna for vehicle of FIG. 6 which is a conventional example.

【図9】例2の自動車用ガラスアンテナ装置の構成図FIG. 9 is a configuration diagram of a glass antenna device for an automobile of Example 2.

【図10】例2の水平偏波面の指向特性図FIG. 10 is a directional characteristic diagram of a horizontal plane of polarization of Example 2.

【符号の説明】[Explanation of symbols]

1:車体開口部 2:自動車の後部のサイド窓ガラス板 3:第1のアンテナ導体 4:給電点 5:第2のアンテナ導体 6:補助アンテナ導体 6a:接続導体 A、B、C、D、K、L、M:間隔 1: vehicle body opening 2: side window glass plate at the rear of the car 3: first antenna conductor 4: feeding point 5: second antenna conductor 6: auxiliary antenna conductor 6a: connection conductor A, B, C, D, K, L, M: interval

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】車両の窓ガラス板に給電点が設けられ、ア
ンテナ導体が給電点から窓ガラス板周縁部と略平行に延
長されて設けられてなる車両用ガラスアンテナにおい
て、 窓ガラス板は略多角形状であり、窓ガラス板の2辺以上
に亙るようにアンテナ導体が設けられており、アンテナ
導体の各辺と相対向する各車体開口部との間隔のうち最
大の間隔が最小の間隔の1.5倍以上であることを特徴
とする車両用ガラスアンテナ。
1. A vehicular glass antenna in which a feed point is provided on a window glass plate of a vehicle and an antenna conductor is provided to extend from the feed point substantially in parallel with a peripheral portion of the window glass plate. The antenna conductor is provided so as to extend over two or more sides of the window glass plate, and the maximum interval among the intervals between each side of the antenna conductor and each of the opposing body openings is the minimum interval. A glass antenna for vehicles, which is 1.5 times or more.
【請求項2】アンテナ導体が複数本であり、最外周のア
ンテナ導体の各辺と相対向する各車体開口部との間隔の
うち最大の間隔が最小の間隔の1.5倍以上である請求
項1の車両用ガラスアンテナ。
2. A plurality of antenna conductors, and a maximum interval among the intervals between each side of the outermost antenna conductor and each of the opposing vehicle body openings is at least 1.5 times the minimum interval. Item 2. A vehicle glass antenna according to Item 1.
【請求項3】アンテナ導体は第1のアンテナ導体と第2
のアンテナ導体とからなり、 窓ガラス板面のいずれか一方の面から見るときに、給電
点に一端を接続した第1のアンテナ導体は給電点を起点
として時計回り方向に延長されてなり、給電点に一端を
接続した第2のアンテナ導体は給電点を起点として第1
のアンテナ導体に囲まれるように反時計回りに延長され
てなる請求項1又は2の車両用ガラスアンテナ。
3. An antenna conductor comprising a first antenna conductor and a second antenna conductor.
When viewed from either side of the window glass plate, the first antenna conductor having one end connected to the feeding point is extended in a clockwise direction from the feeding point as a starting point. The second antenna conductor having one end connected to the point is connected to the first antenna starting from the feeding point.
3. The glass antenna for a vehicle according to claim 1, wherein the glass antenna is extended counterclockwise so as to be surrounded by the antenna conductor.
【請求項4】さらに、アンテナ導体の内側に補助アンテ
ナ導体が設けられてなる請求項1、2又は3の車両用ガ
ラスアンテナ。
4. A glass antenna for a vehicle according to claim 1, further comprising an auxiliary antenna conductor provided inside the antenna conductor.
JP16217796A 1996-06-21 1996-06-21 Glass antenna for vehicle Pending JPH1013125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16217796A JPH1013125A (en) 1996-06-21 1996-06-21 Glass antenna for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16217796A JPH1013125A (en) 1996-06-21 1996-06-21 Glass antenna for vehicle

Publications (1)

Publication Number Publication Date
JPH1013125A true JPH1013125A (en) 1998-01-16

Family

ID=15749488

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16217796A Pending JPH1013125A (en) 1996-06-21 1996-06-21 Glass antenna for vehicle

Country Status (1)

Country Link
JP (1) JPH1013125A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7446719B2 (en) 2004-05-28 2008-11-04 Denso Corporation Mobile antenna mounted on a vehicle body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7446719B2 (en) 2004-05-28 2008-11-04 Denso Corporation Mobile antenna mounted on a vehicle body

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