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1. 发明专利

JPS59174004A High-frequency oscillator 失效
标题翻译：高频振荡器
公开(公告)号：JPS59174004A
公开(公告)日：1984-10-02
申请号：JP4715183
申请日：1983-03-23
申请人： Hitachi Ltd
发明人： YAMAMOTO AKIO , SHINKAWA TAKAO , IRIKOU TAKAHIKO
IPC分类号： H03B5/02 , H03B5/12
CPC分类号： H03B5/1218 , H03B5/1243 , H03B5/125 , H03B5/1293
摘要： PURPOSE:To stabilize both oscillation and the bias to the temperature change and to realize miniaturization of a high-frequency oscillator, by connecting directly the bases to obtain a low impedance state and furthermore connecting directly the transistor base of a buffer amplifier to use a collector as an input. CONSTITUTION:A base 2 of a transistor TR1 having its bias set by resistances 7-10 is grounded via a capacitor 5 to obtain a low impedance. A feedback capacitor 6 is connected between an emitter 4 and a collector 3, and a resonance circuit consisting of an inductance 14 and variable capacity diodes 12 and 13 to which the bias is supplied through a capacitor 11 and resistances 15 and 16 is connected to the collector 3. Thus a variable frequency oscillator is obtained. Then the base of a TR17 to which the bias is set by resistances 7, 8, 19 and 20 is connected to the base 2, and a collector 19 is used as an oscillation output.
摘要翻译：目的：为了稳定振荡和偏置到温度变化，并实现高频振荡器的小型化，通过直接连接基座以获得低阻抗状态，此外直接连接缓冲放大器的晶体管基极使用集电极作为输入。构成：具有由电阻7-10设定的偏置的晶体管TR1的基极2通过电容器5接地以获得低阻抗。反馈电容器6连接在发射极4和集电极3之间，并且由电感14和可变电容二极管12和13组成的谐振电路通过电容器11和电阻15和16连接偏压。因此得到可变频率振荡器。然后，通过电阻7,8,19和20将偏置设置的TR17的基极连接到基座2，并且使用集电器19作为振荡输出。

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