JPH0264219U - - Google Patents
Info
- Publication number
- JPH0264219U JPH0264219U JP14359188U JP14359188U JPH0264219U JP H0264219 U JPH0264219 U JP H0264219U JP 14359188 U JP14359188 U JP 14359188U JP 14359188 U JP14359188 U JP 14359188U JP H0264219 U JPH0264219 U JP H0264219U
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- glass
- showing
- impedance
- adjustment circuit
- 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
Landscapes
- Details Of Aerials (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
第１図は本考案の一実施例を示す後方窓ガラス
の正面図及び回路図、第２図はＦＭ受信システム
のブロツク図、第３図はＦＭアンテナ素子のパタ
ーン図、第４図はアンテナから離れた位置におけ
るインピーダンス特性を示すスミスチヤート、第
５図はアンテナの近くでのインピーダンス特性を
示すスミスチヤート、第６図は電子同調回路の回
路図、第７図は８０ＭHzに同調しているときの受
信感度を示すグラフ、第８図は第１図と違う例を
示すアンテナパターン図、第９図は従来のガラス
アンテナの例を示す後方窓ガラスの正面図である
。
なお図面に用いた符号において、１……後方窓
ガラス、２３……ＦＭ用アンテナ導体、２５……
フイーダケーブル、２６……ＦＭラジオ受信機、
３４……インピーダンス調整回路、である。
Fig. 1 is a front view and circuit diagram of a rear window glass showing an embodiment of the present invention, Fig. 2 is a block diagram of an FM receiving system, Fig. 3 is a pattern diagram of an FM antenna element, and Fig. 4 is from the antenna. A Smith Chart showing the impedance characteristics at a distance. Figure 5 is a Smith Chart showing the impedance characteristics near the antenna. Figure 6 is a circuit diagram of the electronic tuning circuit. Figure 7 is a diagram showing the impedance characteristics when tuned to 80MHz. FIG. 8 is a graph showing reception sensitivity, FIG. 8 is an antenna pattern diagram showing an example different from FIG. 1, and FIG. 9 is a front view of a rear window glass showing an example of a conventional glass antenna. In addition, in the symbols used in the drawings, 1... Rear window glass, 23... FM antenna conductor, 25...
Feeder cable, 26...FM radio receiver,
34... Impedance adjustment circuit.
Claims (1)
線側から見たインピーダンスを制御するインピー
ダンス調整回路とをガラス面上に具備することを
特徴とするガラスアンテナ。[Claims for Utility Model Registration] The antenna is characterized by being equipped on a glass surface with an antenna conductor having inductance and an impedance adjustment circuit that controls the impedance seen from the feed line side based on frequency information given from the receiver. glass antenna.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14359188U JPH0264219U (en) | 1988-11-02 | 1988-11-02 | |
| EP19890311221 EP0367555A3 (en) | 1988-11-02 | 1989-10-31 | Reception system on window glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14359188U JPH0264219U (en) | 1988-11-02 | 1988-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0264219U true JPH0264219U (en) | 1990-05-15 |
Family
ID=31410549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14359188U Pending JPH0264219U (en) | 1988-11-02 | 1988-11-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0264219U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5117784U (en) * | 1974-07-29 | 1976-02-09 | ||
| JPS56162503A (en) * | 1980-05-20 | 1981-12-14 | Matsushita Electric Ind Co Ltd | Antenna for vehicle |
-
1988
- 1988-11-02 JP JP14359188U patent/JPH0264219U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5117784U (en) * | 1974-07-29 | 1976-02-09 | ||
| JPS56162503A (en) * | 1980-05-20 | 1981-12-14 | Matsushita Electric Ind Co Ltd | Antenna for vehicle |
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