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    • 10. 发明专利
    • High frequency second harmonic oscillator
    • 高频二次谐波振荡器
    • JP2011147003A
    • 2011-07-28
    • JP2010007092
    • 2010-01-15
    • Mitsubishi Electric Corp三菱電機株式会社
    • WATANABE SHINSUKETSUKAHARA YOSHIHIROKANETANI YASUSHIMIWA SHINICHI
    • H03B5/18H03B19/10
    • H03B5/1847H03D2200/0086
    • PROBLEM TO BE SOLVED: To provide a high frequency second harmonic oscillator capable of reducing phase noise regardless of a deterioration factor of the phase noise.
      SOLUTION: The high frequency second harmonic oscillator includes: a transistor; a first electric signal line connected to a base side of the transistor; a first shunt capacitor connected to the first electric signal line and having another terminal being grounded; a second electric signal line connected to a collector side of the transistor; a second shunt capacitor connected to the second electric signal line and having another terminal being grounded; and a bulk capacitor connecting the first electric signal line and the second electric signal line. A line length of the first electric signal line is a value between a length which is obtained by subtracting a length of 1/16 wavelength of a fundamental wave signal from a length of an odd multiple of a 1/4 wavelength value of the fundamental wave signal, and a length which is obtained by adding the length of 1/16 wavelength of the fundamental wave signal to the length of the odd multiple of the 1/4 wavelength value of the fundamental wave signal.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供能够降低相位噪声的高频二次谐波振荡器,而不管相位噪声的劣化因素如何。 解决方案:高频二次谐波振荡器包括:晶体管; 连接到所述晶体管的基极侧的第一电信号线; 连接到第一电信号线并具有另一个端子接地的第一并联电容器; 连接到所述晶体管的集电极侧的第二电信号线; 连接到第二电信号线并具有另一个端子接地的第二并联电容器; 以及连接第一电信号线和第二电信号线的大容量电容器。 第一电信号线的线路长度是通过从基波的1/4波长值的奇数倍的长度减去基波信号的1/16波长的长度而得到的长度之间的值 信号和通过将基波信号的1/16波长的长度与基波信号的1/4波长值的奇数倍的长度相加而获得的长度。 版权所有(C)2011,JPO&INPIT