JP3173904B2 - Glass antenna for car phone - Google Patents
Glass antenna for car phoneInfo
- Publication number
- JP3173904B2 JP3173904B2 JP32736992A JP32736992A JP3173904B2 JP 3173904 B2 JP3173904 B2 JP 3173904B2 JP 32736992 A JP32736992 A JP 32736992A JP 32736992 A JP32736992 A JP 32736992A JP 3173904 B2 JP3173904 B2 JP 3173904B2
- Authority
- JP
- Japan
- Prior art keywords
- pattern
- glass
- antenna
- grounding
- ground
- 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.)
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Description
【０００１】[0001]
【産業上の利用分野】この発明は自動車のリアガラスに
付設される自動車電話用ガラスアンテナの改良に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a glass antenna for a car telephone attached to a rear glass of a car.
【０００２】[0002]
【従来の技術】本出願人は図９に示すようなガラス面に
おける上下方向の長さが約１／４波長の放射用パターン
と、ガラス面における上下方向の長さが約１／４波長で
左右方向の長さが約１／４〜３／４波長の接地用パター
ンとからなり、接地用パターンを外枠パターンと中央縦
パターンからなる中抜き形状としたガラスアンテナを実
願平４−３８６２８号明細書において提案している。2. Description of the Related Art The applicant of the present invention discloses a radiation pattern having a vertical length of about 1/4 wavelength on a glass surface as shown in FIG. 9 and a vertical pattern having a vertical length of about 1/4 wavelength on a glass surface. Japanese Patent Application No. 4-38628 discloses a glass antenna comprising a grounding pattern having a length in the left-right direction of about 1/4 to 3/4 wavelength, wherein the grounding pattern has a hollow shape formed by an outer frame pattern and a central vertical pattern. No. in the specification.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記ガラスア
ンテナをガラスエッジ側辺に設置しようとする場合、接
地用パターンの左右方向が大きく、放射用パターン（給
電点）が接地用パターンの中央に位置するものであるた
め、その分どうしても上記アンテナをガラスエッジ側辺
に寄せ難くくなるという問題を有する。However, when the glass antenna is to be installed on the side of the glass edge, the horizontal direction of the ground pattern is large, and the radiation pattern (feed point) is located at the center of the ground pattern. Therefore, there is a problem that it becomes difficult to move the antenna to the side of the glass edge.
【０００４】この発明はこのような課題を解決するため
なされたもので、その目的は接地用パターンの左右方向
を小さくし、給電点をパターンの側辺部に位置させるこ
とでガラスエッジ側辺部に設置し易く、同時に従来パタ
ーンと同様の性能を有する自動車電話用ガラスアンテナ
を提供することにある。The present invention has been made to solve such a problem, and an object of the present invention is to reduce the width of a grounding pattern in the left-right direction and to locate a feeding point on a side of the pattern so that a glass edge side is formed. Another object of the present invention is to provide a glass antenna for a mobile phone which can be easily installed in a vehicle and has the same performance as a conventional pattern.
【０００５】[0005]
【課題を解決するための手段】ところで、上記従来パタ
ーンは中央縦パターンで左右に分割された片方を取り去
っても受信可能であることが実験により確かめられてい
る。By the way, it has been confirmed by experiments that the above-mentioned conventional pattern can be received even if one of the left and right divided vertical central patterns is removed.
【０００６】前記課題を解決するため本発明に係る自動
車電話用ガラスアンテナは、この点に着目し、ガラス面
における上下方向の長さが約１／４波長の放射用パター
ンと、ガラス面における左右方向の長さが約１／４波長
の接地用パターンとからなり、接地用パターンをガラス
面の左右端の少なくとも一方に設け、接地用パターンを
左端に設けるときには放射用パターンを接地用パターン
の左側辺部に寄せて配設し、接地用パターンを右端に設
けるときには放射用パターンを接地用パターンの右側辺
部に寄せて配設し、前記接地用パターンを中抜き形状と
したことを特徴とする。In order to solve the above problems, a glass antenna for a mobile phone according to the present invention is focused on this point, and a radiation pattern having a vertical length of about 1/4 wavelength on the glass surface and a right and left radiation pattern on the glass surface. A ground pattern having a length in the direction of about 1/4 wavelength is provided on at least one of the left and right ends of the glass surface. When the ground pattern is provided on the left end, the radiation pattern is on the left side of the ground pattern. When the grounding pattern is provided at the right end, the radiation pattern is disposed near the right side of the grounding pattern, and the grounding pattern has a hollow shape. .
【０００７】[0007]
【作用】本発明に係る自動車電話用ガラスアンテナは、
放射用パターンの位置を接地パターンの側辺部に寄せて
給電点をパターンの側辺部に設け、さらに接地用パター
ンの左右方向の長さを約１／４波長とすることで車両用
ガラスの側方のガラスエッジに寄せて設置することがで
きる。The glass antenna for a mobile phone according to the present invention is
The position of the radiation pattern is shifted to the side of the ground pattern, the feed point is provided on the side of the pattern, and the length of the ground pattern in the left-right direction is set to about 1/4 wavelength, so that the It can be installed close to the side glass edge.
【０００８】また、接地パターンを中抜き形状とするこ
とで、曲げ加工に伴う加熱時の温度差を少なくでき、従
来と同等の曲げ加工工程で所望の曲率を備えた歪の少な
い窓ガラスとすることができる。Further, by forming the grounding pattern into a hollow shape, the temperature difference during heating due to the bending can be reduced, and a window glass having a desired curvature in a bending process similar to the conventional one and having a small distortion can be obtained. be able to.
【０００９】[0009]
【実施例】以下この発明の実施例を添付図面に基づいて
説明する。図１は本発明に係る自動車電話用ガラスアン
テナを自動車の外から見たときの設置場所を示す説明図
である。Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an explanatory diagram showing an installation place when the glass antenna for a car telephone according to the present invention is viewed from the outside of a car.
【００１０】本発明に係る自動車電話用ガラスアンテナ
１は、自動車のリアガラスの設置場所Ａ１に付設される
放射用パターン３と接地用パターン４、または設置場所
Ａ２に付設される放射用パターン５と接地用パターン６
を備える。７は防曇用の加熱用導電線群を示し、この加
熱用導電線群７を構成する加熱用導電線は母線８で短絡
され、他端の一対の母線９，１０から加熱電流が供給さ
れるよう構成している。The glass antenna 1 for a mobile phone according to the present invention is provided with a radiation pattern 3 and a grounding pattern 4 provided at an installation location A1 of a rear glass of an automobile, or a radiation pattern 5 provided at an installation location A2 and a grounding. Pattern 6
Is provided. Reference numeral 7 denotes a heating conductive wire group for anti-fog. The heating conductive wires constituting the heating conductive wire group 7 are short-circuited by a bus bar 8, and a heating current is supplied from a pair of bus bars 9 and 10 at the other end. It is configured so that:
【００１１】なお、この実施例においては各パターンの
設置場所は加熱用導電線の下方に形成したが、これに限
らず加熱用導電線の上方に形成してもよい。In this embodiment, the location of each pattern is formed below the heating conductive line. However, the present invention is not limited to this and may be formed above the heating conductive line.
【００１２】ここで、設置場所Ａ１とＡ２とに形成され
るパターン形状は同一であり、放射用パターンが設置場
所Ａ１においては左端に位置するのに対し、設置場所Ａ
２においては右端に位置する点で異なるのみであるの
で、以後設置場所Ａ１のパターンについてのみ説明し、
設置場所Ａ２のパターンについての説明は省略する。Here, the pattern shapes formed at the installation locations A1 and A2 are the same, and the radiation pattern is located at the left end in the installation location A1, whereas the radiation pattern is located at the left end.
2 differs only in that it is located at the right end, and hence only the pattern of the installation location A1 will be described below.
Description of the pattern of the installation location A2 is omitted.
【００１３】上記各パターンの設置場所はＡ１、Ａ２の
いずれか一方だけとしてもよい。なお、上下左右計４箇
所のパターン設置場所のうち２箇所にパターンを設けて
アンテナを形成し、２箇所のアンテナでダイバーシティ
受信方式を構成するのが好ましい。The location of each of the above patterns may be either one of A1 and A2. In addition, it is preferable to form an antenna by providing a pattern in two places out of a total of four places where the pattern is arranged in the upper, lower, left and right directions, and to configure a diversity reception system using the two antennas.
【００１４】この実施例においては、放射用パターン３
と接地用パターン４を含めた自動車電話用ガラスアンテ
ナ１の設置場所Ａ１，Ａ２を図１に示すようにリアガラ
ス２の中心線１１から６３０ｍｍ、ガラス側縁からガラ
ス下側で測って約５０ｍｍ離れた位置に放射用パターン
を設けるようにした。In this embodiment, the radiation pattern 3
As shown in FIG. 1, the installation locations A1 and A2 of the glass antenna 1 for a mobile phone including the ground pattern 4 and the grounding pattern 4 are about 630 mm from the center line 11 of the rear glass 2 and about 50 mm from the side edge of the glass under the glass. A radiation pattern was provided at the position.
【００１５】図２は自動車電話用ガラスアンテナの設置
場所Ａ１におけるパターン図であり、図１と同一部分に
は同一符号を付す。FIG. 2 is a pattern diagram at the installation location A1 of the glass antenna for an automobile telephone, and the same parts as those in FIG.
【００１６】設置場所Ａ１に形成した自動車電話用ガラ
スアンテナ１は、放射用パターン３と接地用パターン４
からなる。The glass antenna 1 for a mobile phone formed at the installation location A1 has a radiation pattern 3 and a ground pattern 4
Consists of
【００１７】放射用パターン３はガラス下側エッジに垂
直に配置し、この放射用パターン３の下端には、同軸ケ
ーブル１２の芯線１２ａを半田付け等で接続するための
給電用電極３ａを設ける。ここで、３ｂは給電用電極３
ａ上の給電点を示す。The radiation pattern 3 is arranged vertically to the lower edge of the glass, and a lower end of the radiation pattern 3 is provided with a power supply electrode 3a for connecting the core wire 12a of the coaxial cable 12 by soldering or the like. Here, 3b is the power supply electrode 3.
a shows a feeding point on a.
【００１８】接地用パターン４は上下左右の各外枠パタ
ーン４ａ，４ｂ，４ｃ，４ｄからなる中抜き形状をして
いる。The grounding pattern 4 has a hollow shape composed of upper, lower, left and right outer frame patterns 4a, 4b, 4c, 4d.
【００１９】この設置場所Ａ１のパターンの場合には放
射用パターン３を左側のガラスエッジに近い左の外枠パ
ターン４ｃの上方に形成する。In the case of the pattern of the installation location A1, the radiation pattern 3 is formed above the left outer frame pattern 4c close to the left glass edge.
【００２０】上の外枠パターン４ａと４ｃの交差する部
分には、同軸ケーブル１２の外側導体１２ｂを半田付け
等で接続するための接地用電極４ｅを設ける。ここで、
４ｆは接地用電極４ｅ上の接地点を示す。A grounding electrode 4e for connecting the outer conductor 12b of the coaxial cable 12 by soldering or the like is provided at the intersection of the upper outer frame patterns 4a and 4c. here,
4f indicates a ground point on the ground electrode 4e.
【００２１】本実施例においては、放射用パターン３の
長さＬを４７．５ｍｍ、接地用パターン４の高さを４０
ｍｍとし、接地用パターン４の幅Ｇを変化させて最適の
接地用パターン幅Ｇの長さを決定した。また接地用パタ
ーン高さの好ましい範囲は３０ｍｍ〜５０ｍｍである。In this embodiment, the length L of the radiation pattern 3 is 47.5 mm, and the height of the ground pattern 4 is 40 mm.
mm, and the width G of the ground pattern 4 was changed to determine the optimum length G of the ground pattern. A preferable range of the height of the grounding pattern is 30 mm to 50 mm.
【００２２】図３のグラフにおいて横軸は周波数を、縦
軸は平均利得を示し、各特性ａ〜ｆはそれぞれ接地用パ
ターン幅Ｇの長さが７０ｍｍ，６０ｍｍ，５０ｍｍ，４
０ｍｍ，３０ｍｍ，２０ｍｍの平均利得を示す。In the graph of FIG. 3, the horizontal axis represents the frequency and the vertical axis represents the average gain, and the characteristics a to f indicate that the length of the ground pattern width G is 70 mm, 60 mm, 50 mm, and 4 mm, respectively.
Average gains of 0 mm, 30 mm, and 20 mm are shown.
【００２３】ここで、平均利得はダイポールアンテナを
基準アンテナとしたときの利得との比である。なお、図
４はパターン幅Ｇの長さと平均利得との関係を数表とし
て表したものである。Here, the average gain is a ratio with the gain when a dipole antenna is used as a reference antenna. FIG. 4 is a numerical table showing the relationship between the length of the pattern width G and the average gain.
【００２４】図３および図４から接地用パターン幅Ｇの
長さは、５０ｍｍ前後（３０〜６０ｍｍ）が最適である
ことが判明した。この５０ｍｍの値はガラス基材に形成
したアンテナの短縮率を０．６としたとき、９００ＭＨ
ｚにおける１／４波長に相当するものであることから、
良好な利得を得ることができることを示している。3 and 4, it has been found that the length of the ground pattern width G is optimally around 50 mm (30 to 60 mm). This value of 50 mm is 900 MHz when the shortening rate of the antenna formed on the glass base is 0.6.
is equivalent to a quarter wavelength in z,
This shows that good gain can be obtained.
【００２５】図５のグラフは、接地用パターン幅Ｇの長
さが５０ｍｍにおける設置場所Ａ１での平均利得、接地
用パターン幅Ｇの長さが５０ｍｍにおける設置場所Ａ２
での平均利得、従来パターン（図９のパターンで接地用
パターン幅の左右方向の長さが１００ｍｍ）を中心線か
ら５８０ｍｍ離れた位置に配置したときの平均利得、お
よび市販されている自動車電話用リアポールアンテナの
平均利得を示す。FIG. 5 is a graph showing an average gain at the installation location A1 when the length of the ground pattern width G is 50 mm, and an average gain at the installation location A2 when the length of the ground pattern width G is 50 mm.
Gain, the average gain when the conventional pattern (the length of the grounding pattern width in the left-right direction in the pattern of FIG. 9 in the left-right direction is 100 mm) is disposed at a position 580 mm away from the center line, and for a commercially available car phone. 5 shows the average gain of the rear pole antenna.
【００２６】ここで、平均利得はダイポールアンテナを
基準アンテナとしたときの利得との比である。なお、図
６は上記各アンテナの平均利得を数表として表したもの
である。Here, the average gain is a ratio with the gain when a dipole antenna is used as a reference antenna. FIG. 6 shows the average gain of each antenna as a numerical table.
【００２７】図５および図６からわかるように、利得は
設置場所がＡ１のときでもＡ２のときでも従来パターン
に比べ各周波数において同等以上となる。As can be seen from FIGS. 5 and 6, the gain is equal to or greater than the conventional pattern at each frequency regardless of whether the installation location is A1 or A2.
【００２８】さらに、平均利得が良好なリアポールアン
テナと比べても、利得の低下は−２ｄＢ程度であること
がわかる。Further, it can be seen that the decrease in the gain is about -2 dB even when compared with a rear pole antenna having a good average gain.
【００２９】そのときの設置場所がＡ１、Ａ２および従
来パターンにおける８００ＭＨｚ，８５０ＭＨｚ，９０
０ＭＨｚ，９５０ＭＨｚにおけるガラスアンテナの指向
特性を図７のグラフに示す。The installation locations at that time are A1, A2 and 800 MHz, 850 MHz, 90 MHz in the conventional pattern.
The directional characteristics of the glass antenna at 0 MHz and 950 MHz are shown in the graph of FIG.
【００３０】このグラフから設置場所をＡ１、Ａ２とし
た本発明に係る自動車電話用ガラスアンテナと従来パタ
ーンにおけるアンテナとで指向特性に大きな差がないこ
とがわかる。From this graph, it can be seen that there is no large difference in the directional characteristics between the glass antenna for a mobile phone according to the present invention where the installation locations are A1 and A2 and the antenna in the conventional pattern.
【００３１】図８はアンテナパターンの変形例を示す説
明図である。図８（ａ）はガラスエッジ部が曲っている
場合であって、接地用パターンの上下の外枠パターンを
扇形としたものである。FIG. 8 is an explanatory view showing a modification of the antenna pattern. FIG. 8A shows a case where the glass edge is bent, and the upper and lower outer frame patterns of the grounding pattern are sector-shaped.
【００３２】図８（ｂ）〜（ｄ）は放射用パターンをＶ
型、Ｔ型および逆Ｌ型としたものである。図８（ｅ）は
放射用パターンおよび接地用パターンを中抜きにしたも
のであって、この変形例においては給電用電極および接
地用電極を除いて各パターンの中央部を間隔３ｍｍで中
抜きしている。FIGS. 8B to 8D show that the radiation pattern is V
Type, T type and inverted L type. FIG. 8 (e) shows the radiation pattern and the grounding pattern hollowed out. In this modification, the center of each pattern is hollowed out at a distance of 3 mm except for the feeding electrode and the grounding electrode. ing.
【００３３】図８（ｆ）は放射用パターンおよび接地用
パターンを３本の線で形成したものである。図８（ｇ）
は給電点まで放射用パターンおよび接地用パターンから
平行パターンで形成したものである。FIG. 8F shows a radiation pattern and a ground pattern formed by three lines. FIG. 8 (g)
Are formed in a parallel pattern from a radiation pattern and a ground pattern to the feeding point.
【００３４】[0034]
【発明の効果】以上説明したように本発明に係る自動車
電話用ガラスアンテナは、接地パターンの左右方向の長
さを約１／４波長とし、放射用パターンを接地用パター
ンの側辺に寄せたとき従来と同様の性能を得ることがで
きるようにしたので、リアガラスのガラスエッジに寄せ
て配置することができる。そのため、小型になって目立
たなくなり、また、ガラスの側縁から給電でき、給電部
は左右の内装材で隠すことができるので、美観上好まし
いものとなる。As described above, in the glass antenna for a mobile phone according to the present invention, the length of the ground pattern in the left-right direction is set to about 1/4 wavelength, and the radiation pattern is shifted to the side of the ground pattern. At the same time, the same performance as that of the related art can be obtained, and therefore, it is possible to dispose it near the glass edge of the rear glass. Therefore, it becomes small and inconspicuous, the power can be supplied from the side edge of the glass, and the power supply portion can be hidden by the left and right interior materials, which is aesthetically preferable.
【００３５】また、接地パターンを中抜き形状としたの
で、曲げ加工に伴う加熱時の温度差を少なくでき、従来
と同等の曲げ加工工程で所望の曲率を備えた歪の少ない
窓ガラスを得ることができる。Further, since the grounding pattern has a hollow shape, the temperature difference during heating due to bending can be reduced, and a window glass having a desired curvature and having a desired curvature can be obtained in the same bending process as in the related art. Can be.
【図１】本発明に係る自動車電話用ガラスアンテナの設
置場所を示す説明図FIG. 1 is an explanatory view showing an installation place of a glass antenna for a mobile phone according to the present invention.
【図２】本発明に係る自動車電話用ガラスアンテナの設
置場所Ａ１におけるパターン図FIG. 2 is a pattern diagram at an installation location A1 of a glass antenna for a mobile phone according to the present invention.
【図３】接地パターンの幅および周波数と平均利得の関
係を示すグラフFIG. 3 is a graph showing the relationship between the width and frequency of the ground pattern and the average gain.
【図４】接地パターンの幅および周波数と平均利得の関
係を示す数表FIG. 4 is a numerical table showing the relationship between the average gain and the width and frequency of the ground pattern.
【図５】アンテナの設置場所（または種類）および周波
数と平均利得の関係を示すグラフFIG. 5 is a graph showing a relationship between an installation location (or type) of an antenna, a frequency, and an average gain.
【図６】アンテナの設置場所（または種類）および周波
数と平均利得の関係を示す数表FIG. 6 is a numerical table showing a relationship between an installation location (or type) of an antenna, a frequency, and an average gain.
【図７】ガラスアンテナの指向特性を示すグラフFIG. 7 is a graph showing directivity characteristics of a glass antenna.
【図８】本発明に係る自動車電話用ガラスアンテナのア
ンテナパターンの変形例を示す説明図FIG. 8 is an explanatory view showing a modification of the antenna pattern of the glass antenna for a mobile phone according to the present invention.
【図９】従来の自動車電話用ガラスアンテナのパターン
図FIG. 9 is a pattern diagram of a conventional glass antenna for a mobile phone.
１…自動車電話用ガラスアンテナ、２…リアガラス、
３，５…放射用パターン、３ａ…給電用電極、３ｂ…給
電点、４，６…接地用パターン、４ａ，４ｂ，４ｃ，４
ｄ…外枠パターン、４ｅ…接地用電極、４ｆ…接地点、
７…加熱用電線群、８，９，１０…母線、１１…中心
線、１２…同軸ケーブル、１２ａ…芯線、１２ｂ…外側
導体。1 ... Glass antenna for car phone, 2 ... Rear glass,
3, 5: radiation pattern, 3a: power supply electrode, 3b: power supply point, 4, 6: ground pattern, 4a, 4b, 4c, 4
d: outer frame pattern, 4e: ground electrode, 4f: ground point,
7: heating wire group, 8, 9, 10: bus bar, 11: center line, 12: coaxial cable, 12a: core wire, 12b: outer conductor.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平１−177202（ＪＰ，Ａ) 特開 平１−15701（ＪＰ，Ａ) 実開 昭63−187408（ＪＰ，Ｕ) 実開 昭64−55716（ＪＰ，Ｕ) 実開 平２−811（ＪＰ，Ｕ) 実開 平５−82113（ＪＰ，Ｕ) 実開 昭63−156105（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01Q 1/00 - 1/10 H01Q 1/27 - 1/52 H01Q 9/16 - 9/28 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-177202 (JP, A) JP-A-1-15701 (JP, A) JP-A-63-187408 (JP, U) JP-A-64 55716 (JP, U) Japanese Utility Model 2-811 (JP, U) Japanese Utility Model 5-21113 (JP, U) Japanese Utility Model 63-156105 (JP, U) (58) Field surveyed (Int. 7 , DB name) H01Q 1/00-1/10 H01Q 1/27-1/52 H01Q 9/16-9/28
Claims (1)
／４波長の放射用パターンと、ガラス面における左右方
向の長さが約１／４波長の接地用パターンとからなり、
接地用パターンをガラス面の左右端の少なくとも一方に
設け、接地用パターンを左端に設けるときには放射用パ
ターンを接地用パターンの左側辺部に寄せて配設し、接
地用パターンを右端に設けるときには放射用パターンを
接地用パターンの右側辺部に寄せて配設し、前記接地用
パターンを中抜き形状としたことを特徴とする自動車電
話用ガラスアンテナ。1. The vertical length of the glass surface is about 1
A 波長 wavelength radiation pattern and a grounding pattern having a length of about ４ wavelength on the glass surface in the left-right direction,
The grounding pattern is provided on at least one of the left and right ends of the glass surface.When the grounding pattern is provided on the left end, the radiation pattern is arranged on the left side of the grounding pattern, and when the grounding pattern is provided on the right end, the radiation pattern is provided. A glass antenna for a mobile phone, wherein a ground pattern is disposed close to a right side of the ground pattern, and the ground pattern has a hollow shape.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32736992A JP3173904B2 (en) | 1992-11-12 | 1992-11-12 | Glass antenna for car phone |
| US08/390,931 US5521606A (en) | 1992-02-05 | 1995-02-17 | Window glass antenna for motor vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32736992A JP3173904B2 (en) | 1992-11-12 | 1992-11-12 | Glass antenna for car phone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06152216A JPH06152216A (en) | 1994-05-31 |
| JP3173904B2 true JP3173904B2 (en) | 2001-06-04 |
Family
ID=18198374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32736992A Expired - Fee Related JP3173904B2 (en) | 1992-02-05 | 1992-11-12 | Glass antenna for car phone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3173904B2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0993019A (en) * | 1995-09-27 | 1997-04-04 | Harada Ind Co Ltd | Window glass antenna for vehicle |
| US6822613B2 (en) | 2002-07-03 | 2004-11-23 | Asahi Glass Company, Limited | High frequency wave glass antenna for an automobile |
| WO2004084343A1 (en) | 2003-03-19 | 2004-09-30 | Central Glass Co., Ltd. | Antenna for vehicle |
| CA2489262A1 (en) | 2003-12-10 | 2005-06-10 | Asahi Glass Company, Limited | Planar antenna |
| JP2008172626A (en) * | 2007-01-12 | 2008-07-24 | Mazda Motor Corp | Antenna |
| JP4988445B2 (en) * | 2007-06-20 | 2012-08-01 | 日本板硝子株式会社 | Glass antenna for vehicles |
| JP5125616B2 (en) * | 2008-03-03 | 2013-01-23 | 日本電気株式会社 | antenna |
| JP5391176B2 (en) * | 2010-10-22 | 2014-01-15 | 原田工業株式会社 | Antenna device for vehicle window |
| JP6527325B2 (en) * | 2014-12-08 | 2019-06-05 | 日本板硝子株式会社 | Vehicle rear quarter glass antenna |
-
1992
- 1992-11-12 JP JP32736992A patent/JP3173904B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06152216A (en) | 1994-05-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20010319 |
|
| LAPS | Cancellation because of no payment of annual fees |