JPS5864154U - Oscillation output radiation reduction circuit - Google Patents
Oscillation output radiation reduction circuitInfo
- Publication number
- JPS5864154U JPS5864154U JP15904681U JP15904681U JPS5864154U JP S5864154 U JPS5864154 U JP S5864154U JP 15904681 U JP15904681 U JP 15904681U JP 15904681 U JP15904681 U JP 15904681U JP S5864154 U JPS5864154 U JP S5864154U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- oscillation output
- reduction circuit
- radiation reduction
- output radiation
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は局部発振回路の従来例を示す回路図、第２図は
本考案による局部発振回路の回路図、第３図は第２図の
回路を印刷配線板に実装した構成を示す説明図、第４図
は本考案により局部発振出力の漏洩成分が押えられるこ
とを説明する周波数特性図、第５図は同様効果を説明す
るため−の説明図である。
１１・・・チューナ回路、１２・・・局部発振回路、１
４・・・選局電圧給電端子、１５・・・抵抗、１７゜１
８・・・導線、１９・・・印刷配線板、Ｃ１・・・コン
デンサ、Ｌ３． Ｌ４・・・回路パターン。Figure 1 is a circuit diagram showing a conventional example of a local oscillation circuit, Figure 2 is a circuit diagram of a local oscillation circuit according to the present invention, and Figure 3 is an explanatory diagram showing a configuration in which the circuit in Figure 2 is mounted on a printed wiring board. 4 is a frequency characteristic diagram illustrating that the leakage component of the local oscillation output is suppressed by the present invention, and FIG. 5 is an explanatory diagram illustrating the same effect. 11... Tuner circuit, 12... Local oscillation circuit, 1
4... Tuning voltage power supply terminal, 15... Resistance, 17゜1
8... Conductor wire, 19... Printed wiring board, C1... Capacitor, L3. L4...Circuit pattern.
Claims (1)
形成される回路において上記発振回路に接続されている
回路パターンと、このパターンと上記外部端子の間に電
気的に結合させた抵抗を形成したことを特徴とする発振
出力の輻射低減回路。In a circuit where an external terminal from which oscillation output leaks is formed other than the output end of the oscillation circuit, a circuit pattern connected to the oscillation circuit and a resistor electrically coupled between this pattern and the external terminal are formed. A radiation reduction circuit for oscillation output characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15904681U JPS5864154U (en) | 1981-10-27 | 1981-10-27 | Oscillation output radiation reduction circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15904681U JPS5864154U (en) | 1981-10-27 | 1981-10-27 | Oscillation output radiation reduction circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5864154U true JPS5864154U (en) | 1983-04-30 |
Family
ID=29951519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15904681U Pending JPS5864154U (en) | 1981-10-27 | 1981-10-27 | Oscillation output radiation reduction circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5864154U (en) |
-
1981
- 1981-10-27 JP JP15904681U patent/JPS5864154U/en active Pending
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