A novel feedforward-coupling ring oscillator (FRVCO) is presented. A comparative study in terms of oscillation frequency and phase noise is conducted between the proposed model and the traditional FRVCO. Due to the improved delay cell, high oscillation frequency, low phase noise and uniform multi-phase output can be achieved. Compared with the traditional FRVCO, under the same design parameters, the FRVCO proposed in this Letter can increase the oscillation frequency by 10% while reducing the phase noise at 1 MHz by at least 10 dB.

中文翻译：

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高频低相位噪声的多相前馈环形压控振荡器

提出了一种新颖的前馈耦合环形振荡器 (FRVCO)。在所提出的模型和传统 FRVCO 之间进行了振荡频率和相位噪声的比较研究。由于改进的延迟单元，可以实现高振荡频率、低相位噪声和均匀的多相输出。与传统的 FRVCO 相比，在相同的设计参数下，本文提出的 FRVCO 可以将振荡频率提高 10%，同时将 1 MHz 处的相位噪声降低至少 10 dB。