A Ku-Band Injection-Locked Push-Push Oscillator Using Two-Wavelength Ring Resonator

E. N. Lima, Takayuki Tanaka, I. Toyoda
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Abstract

This paper presents an injection-locked push-push oscillator which generates the second harmonic signal in Ku-band. Two sub-oscillators operate in-phase at the same fundamental frequency in a two-wavelength ring resonator. Moreover, two external injection signals are placed on the resonator at a half-wavelength between the sub-oscillators. The oscillator does not require additional phase-shift between the injection signals, and this task is done by the resonator and the power combining circuit. The push-push principle is satisfied by synchronization due to the phase relation of the sub-oscillators and the external injection signal source. Phase noise improvement was achieved by the injection locking,
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基于双波长环形谐振腔的ku波段注入锁定推推振荡器
本文提出了一种能产生ku波段二次谐波信号的注入锁定推推振荡器。在双波长环形谐振器中,两个子振荡器以相同的基频同相工作。此外,在子振荡器之间的半波长处放置两个外部注入信号在谐振器上。振荡器不需要在注入信号之间额外的相移,这项任务由谐振器和功率组合电路完成。由于子振荡器与外部注入信号源的相位关系,同步满足推-推原理。通过注入锁定实现了相位噪声的改善;
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