基本信息:

• 专利标题： Oscillating apparatus including two-band resonance circuit
• 专利标题（中）：Oszillatorgerätmit zweibandendigem Resonanzkreis
• 申请号：EP00306530.7 申请日：2000-07-31
• 公开(公告)号：EP1079513A1 公开(公告)日：2001-02-28
• 发明人： Tanemura, Takeshi , Ikarashi, Yashuhiro
• 申请人： ALPS ELECTRIC CO., LTD.
• 申请人地址： 1-7 Yukigaya Otsuka-cho Ota-ku Tokyo 145 JP
• 专利权人： ALPS ELECTRIC CO., LTD.
• 当前专利权人： ALPS ELECTRIC CO., LTD.
• 当前专利权人地址： 1-7 Yukigaya Otsuka-cho Ota-ku Tokyo 145 JP
• 代理机构： Kensett, John Hinton
• 优先权： JP23259899 19990819
• 主分类号： H03B5/12
• IPC分类号： H03B5/12

摘要：

The oscillating apparatus of the invention comprises a first oscillator (1) for outputting an oscillation signal of the first frequency band, a second oscillator (2) for outputting an oscillation signal of the second frequency band which is higher than the first frequency band and a grounded-emitter type amplifier (3) including an amplifying transistor to amplify the oscillation signal of the first frequency band or the oscillation signal of the second frequency band. In this structure, an emitter bias resistor (3c) is connected between the emitter of the amplifying transistor and the ground and both first series resonance means (3d) which resonates in almost the first frequency band and second series resonance means (3e) which resonates in almost second frequency band are connected between the emitter and ground. Thereby, the number of parts can be reduced through simplified structure of amplifier and amplification degree may be increased within two oscillation frequency bands without changing the amplifying characteristic.

摘要（中）：

本发明的振荡装置包括用于输出第一频带的振荡信号的第一振荡器（1），用于输出高于第一频带的第二频带的振荡信号的第二振荡器（2）和 接地 - 发射极型放大器（3），包括放大晶体管，以放大第一频带的振荡信号或第二频带的振荡信号。 在这种结构中，发射极偏置电阻（3c）连接在放大晶体管的发射极和地之间，并且在几乎第一频带中共振的第一串联谐振装置（3d）和谐振的第二串联谐振装置（3e） 几乎第二个频带连接在发射极和地之间。 因此，可以通过简化的放大器的结构来减少部件的数量，并且可以在不改变放大特性的情况下在两个振荡频带内增加放大度。

公开/授权文献:

• EP1079513B1  Oscillating apparatus including two-band resonance circuit 公开/授权日：2003-10-29

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