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1. 发明授权

US09263989B2 Differential oscillator 有权
标题翻译：差分振荡器
公开(公告)号：US09263989B2
公开(公告)日：2016-02-16
申请号：US14315295
申请日：2014-06-25
申请人： NIHON DEMPA KOGYO CO., LTD.
发明人： Takashi Nakaoka , Hiroshi Hoshigami
IPC分类号： H03B5/36
CPC分类号： H03B5/368
摘要： A differential oscillator includes a resonator, a differential amplifier circuit, and a filter. The filter is disposed in parallel to the resonator and the differential amplifier circuit. The filter has a first resonance frequency in the first resonance mode and a second resonance frequency in the second resonance mode. The filter has a lower impedance at one frequency in one of the first resonance frequency and the second resonance frequency than an impedance at one frequency at another in the first resonance frequency and the second resonance frequency. The differential oscillator has a negative resistance at a frequency at which the impedance of the filter is higher while the differential oscillator does not have a negative resistance at a frequency at which the impedance of the filter is lower among the first resonance frequency and the second resonance frequency.
摘要翻译：差分振荡器包括谐振器，差分放大器电路和滤波器。滤波器与谐振器和差分放大器电路并联设置。滤波器在第一谐振模式中具有第一谐振频率，在第二谐振模式中具有第二谐振频率。滤波器在第一谐振频率和第二谐振频率中的一个频率下的一个频率处的阻抗比在第一谐振频率和第二谐振频率中的另一频率处的阻抗低。差分振荡器在滤波器的阻抗较高的频率处具有负电阻，而差分振荡器在第一谐振频率和第二谐振中的滤波器的阻抗较低的频率处不具有负电阻频率。

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