JPH0262813U - - Google Patents
Info
- Publication number
- JPH0262813U JPH0262813U JP14251888U JP14251888U JPH0262813U JP H0262813 U JPH0262813 U JP H0262813U JP 14251888 U JP14251888 U JP 14251888U JP 14251888 U JP14251888 U JP 14251888U JP H0262813 U JPH0262813 U JP H0262813U
- Authority
- JP
- Japan
- Prior art keywords
- heating conductor
- power supply
- window glass
- automobile
- supply path
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000004020 conductor Substances 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 8
- 239000005357 flat glass Substances 0.000 claims description 7
- 241001074085 Scophthalmus aquosus Species 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Details Of Aerials (AREA)
Description
第1図は本考案の一実施例を示す自動車の後方
窓ガラスの正面図及び回路図、第2図はFM感度
改善用コンデンサの有無による受信感度の違いを
示すグラフ、第3図はFM感度改善用コンデンサ
の容量を変えたときの感度変化を示すグラフ、第
4図〜第6図はFM放送帯の受信感度を示し、第
4図は最大値、第5図は平均値、第6図はピラー
アンテナを基準にしたときの平均値、第7図はF
M感度改善用コンデンサを取付けたときのAM感
度を示すグラフ、第8図はFM放送帯の指向特性
図、第9図はコンデンサの取付位置の変形例を示
す回路図、第10図は別の実施例を示す導体パタ
ーン及び回路図、第11図はコンデンサの取付位
置の変形例を示す配線図、第12図は従来のガラ
スアンテナの一例を示す自動車の後方窓ガラスの
正面図及び回路図である。
なお図面に用いた符号において、1…後方窓ガ
ラス、2…ヒータ線、3,4…給電母線、9…加
熱用導体、16a,16b…チヨークコイル、2
3…アンテナ素子、25…FM感度改善用コンデ
ンサ、である。
Figure 1 is a front view and circuit diagram of a rear window glass of a car showing an embodiment of the present invention, Figure 2 is a graph showing the difference in receiving sensitivity depending on the presence or absence of a capacitor for improving FM sensitivity, and Figure 3 is FM sensitivity. Graphs showing sensitivity changes when changing the capacitance of the improvement capacitor. Figures 4 to 6 show the reception sensitivity of the FM broadcast band. Figure 4 is the maximum value, Figure 5 is the average value, and Figure 6 is the average value. is the average value based on the pillar antenna, and Fig. 7 shows F.
A graph showing AM sensitivity when a capacitor for improving M sensitivity is installed, Fig. 8 is a directional characteristic diagram of the FM broadcast band, Fig. 9 is a circuit diagram showing a modification of the capacitor installation position, and Fig. 10 is a different one. 11 is a wiring diagram showing a modified example of the mounting position of the capacitor; FIG. 12 is a front view and circuit diagram of a rear window glass of an automobile showing an example of a conventional glass antenna. be. In addition, in the symbols used in the drawings, 1...rear window glass, 2...heater wire, 3, 4...power supply bus, 9...heating conductor, 16a, 16b...chiyoke coil, 2
3... Antenna element, 25... FM sensitivity improvement capacitor.
Claims (1)
、 上記加熱用導体に加熱電流を供給する正負一対
の給電線のそれぞれに挿入された受信周波数帯域
で高インピーダンスになるチヨークコイルと、 上記チヨークコイルから上記加熱用導体に至る
までの正電源供給路と負電源供給路とを接続する
コンデンサとを具備する自動車用窓ガラスアンテ
ナ。 2 自動車の窓ガラスに付設された加熱用導体と
、 上記加熱用導体に沿つて水平に設けられ、それ
ぞれの一端が上記加熱用導体の左側端部及び右側
端部に接続されると共に、それぞれの他端が所定
の間隔を明けて上記窓ガラスの略中央部で対向さ
せられている一対のアンテナ素子と、 上記加熱用導体に加熱電流を供給する正負一対
の給電線のそれぞれに挿入された受信周波数帯域
で高インピーダンスになるチヨークコイルと、 上記チヨークコイルから上記加熱用導体に至る
までの正電源供給路と負電源供給路とを接続する
コンデンサとを具備する自動車用窓ガラスアンテ
ナ。[Scope of Claim for Utility Model Registration] 1. A heating conductor attached to the window glass of an automobile, and a high impedance in the receiving frequency band inserted into each of a pair of positive and negative power supply lines that supply heating current to the heating conductor. A windowpane antenna for an automobile, comprising: a chiyoke coil; and a capacitor connecting a positive power supply path and a negative power supply path from the chiyoke coil to the heating conductor. 2. A heating conductor attached to the window glass of an automobile, and a heating conductor provided horizontally along the heating conductor, one end of each of which is connected to the left end and right end of the heating conductor, and a pair of antenna elements whose other ends face each other approximately at the center of the window glass with a predetermined distance therebetween; and a receiver inserted into each of a pair of positive and negative feeder lines that supply heating current to the heating conductor. An automobile window glass antenna comprising: a chiyoke coil having high impedance in a frequency band; and a capacitor connecting a positive power supply path and a negative power supply path from the chiyoke coil to the heating conductor.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14251888U JPH0262813U (en) | 1988-10-31 | 1988-10-31 | |
US07/427,587 US5113195A (en) | 1988-10-31 | 1989-10-26 | Glass window antenna for use in a motor vehicle |
DE68920277T DE68920277T2 (en) | 1988-10-31 | 1989-10-31 | Window antenna for motor vehicles. |
EP89120192A EP0367225B1 (en) | 1988-10-31 | 1989-10-31 | A glass window antenna for use in a motor vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14251888U JPH0262813U (en) | 1988-10-31 | 1988-10-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0262813U true JPH0262813U (en) | 1990-05-10 |
Family
ID=31408545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14251888U Pending JPH0262813U (en) | 1988-10-31 | 1988-10-31 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0262813U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005303946A (en) * | 2004-04-16 | 2005-10-27 | Nippon Sheet Glass Co Ltd | High-frequency glass antenna for automobile |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52110552A (en) * | 1976-03-12 | 1977-09-16 | Toyota Motor Co Ltd | Heater and antenna circuit |
JPS61100004A (en) * | 1984-10-22 | 1986-05-19 | Nippon Sheet Glass Co Ltd | Window glass for automobile with antenna element |
JPS63131704A (en) * | 1986-11-21 | 1988-06-03 | Harada Kogyo Kk | Compensation amplifier device for glass antenna |
-
1988
- 1988-10-31 JP JP14251888U patent/JPH0262813U/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52110552A (en) * | 1976-03-12 | 1977-09-16 | Toyota Motor Co Ltd | Heater and antenna circuit |
JPS61100004A (en) * | 1984-10-22 | 1986-05-19 | Nippon Sheet Glass Co Ltd | Window glass for automobile with antenna element |
JPS63131704A (en) * | 1986-11-21 | 1988-06-03 | Harada Kogyo Kk | Compensation amplifier device for glass antenna |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005303946A (en) * | 2004-04-16 | 2005-10-27 | Nippon Sheet Glass Co Ltd | High-frequency glass antenna for automobile |
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