JPH01115340U - - Google Patents
Info
- Publication number
- JPH01115340U JPH01115340U JP998488U JP998488U JPH01115340U JP H01115340 U JPH01115340 U JP H01115340U JP 998488 U JP998488 U JP 998488U JP 998488 U JP998488 U JP 998488U JP H01115340 U JPH01115340 U JP H01115340U
- Authority
- JP
- Japan
- Prior art keywords
- inductor
- variable capacitance
- capacitance diode
- tuning
- antenna
- 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
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Noise Elimination (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
第１図は本考案回路の一実施例の回路図、第２
図は第１図のインダクタ１０の側面図、第３図は
第１図の回路の等価回路図、第４図は従来回路の
一例の回路図、第５図は従来及び本考案の回路の
特性図である。
２……コイル、５……バラクタ・ダイオード、
１０……インダクタ、１０ｃ……中間タツプ。
Fig. 1 is a circuit diagram of an embodiment of the circuit of the present invention;
1 is a side view of the inductor 10, FIG. 3 is an equivalent circuit diagram of the circuit shown in FIG. 1, FIG. 4 is a circuit diagram of an example of a conventional circuit, and FIG. 5 is a characteristic of the conventional circuit and the circuit of the present invention. It is a diagram. 2...Coil, 5...Varactor diode,
10...Inductor, 10c...Intermediate tap.
Claims (1)
量ダイオードとで構成した共振回路により同調選
択する電子同調チユーナのアンテナ同調回路にお
いて、 該インダクタに同調選択した信号を取り出す中
間タツプを設け、かつ該インダクタの該中間タツ
プから該可変容量ダイオードとの接続端までの間
のインダクタンスと該可変容量ダイオードのキヤ
パシタンスとによりイメージ周波数のトラツプを
形成してなるアンテナ同調回路。[Scope of Claim for Utility Model Registration] In the antenna tuning circuit of an electronic tuning tuner that selects the tuning of a signal received by an antenna using a resonant circuit composed of an inductor and a variable capacitance diode, an intermediate tap is provided for extracting the tuned signal from the inductor. and forming an image frequency trap by the inductance between the intermediate tap of the inductor and the connection end with the variable capacitance diode and the capacitance of the variable capacitance diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP998488U JPH01115340U (en) | 1988-01-28 | 1988-01-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP998488U JPH01115340U (en) | 1988-01-28 | 1988-01-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01115340U true JPH01115340U (en) | 1989-08-03 |
Family
ID=31217213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP998488U Pending JPH01115340U (en) | 1988-01-28 | 1988-01-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01115340U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52136515A (en) * | 1976-05-11 | 1977-11-15 | Nippon Technical | Tuner |
-
1988
- 1988-01-28 JP JP998488U patent/JPH01115340U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52136515A (en) * | 1976-05-11 | 1977-11-15 | Nippon Technical | Tuner |
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