Design and Analysis of CMOS Low-Phase-Noise Low Quadrature Error $V$ -Band Subharmonically Injection-Locked Quadrature FLL
Design and Analysis of CMOS Low-Phase-Noise Low Quadrature Error $V$ -Band Subharmonically Injection-Locked Quadrature FLL
复制标题
CMOS低相位噪声低正交误差$V$带分谐波注入锁定正交FLL的设计与分析
DOI：
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发表时间：
2018
影响因子：
4.3
通讯作者：
Gun Huang
中科院分区：
文献类型：
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作者：
Hong;Chun;Shen;Han;Ian Yi;Gun Huang
采用90 nm工艺设计并分析了V波段低相位噪声、低正交误差、亚谐波注入锁定的正交压控振荡器(QVCO)和正交锁频环(FLL)。在准压控振荡器中采用了一种改进的自注入技术，以减小正交误差和相位噪声。采用变压器耦合的拓扑结构，扩大了次谐波注入锁定准压控振荡器的锁定范围。在次谐波数为3的情况下，该次谐波注入锁定准压控振荡器的整体LR为3.5Ghz，在1 MHz偏移处的相位噪声为−126.8 dBc/Hz，相位误差为0.32°，幅度误差为0.26d B。此外，由于QVCO的控制电压自适应对准以克服LR，因此利用QVCO实现了正交型FLL，其次谐波数可达32。亚谐注入锁定正交锁相锁相环的工作频率为49~51.4 GHz。测量的幅值误差和相位误差分别为0.5分贝和2.5°。在15°C~50°C范围内，1 MHz频偏下的最小相位噪声和1 kHz~40 MHz的积分抖动分别低于−106dBc/hz和110fs。与现有技术相比，所提出的$V波段亚谐注入锁定的正交QVCO和正交FLL具有优良的性能和良好的稳健性。
Design and analysis of low-phase-noise low quadrature error V-band subharmonically injection-locked quadrature voltage-controlled oscillator (QVCO) and quadrature frequency-locked loop (FLL) are presented in this paper using 90-nm CMOS process. A modified self-injection technique is employed in the QVCO to reduce quadrature error and phase noise. A transformer coupled topology is adopted to widen the locking range (LR) of the subharmonically injection-locked QVCO. With a subharmonic number of 3, the proposed subharmonically injection-locked QVCO demonstrates an overall LR of 3.5 GHz, a phase noise of −126.8 dBc/Hz at 1-MHz offset, a phase error of 0.32°, and an amplitude error of 0.26 dB. Moreover, the quadrature FLL is developed using the QVCO, and the subharmonic number can be up to 32 since the control voltage of the QVCO is adaptively aligned to overcome the LR. The operation frequency of the subharmonically injection-locked quadrature FLL is from 49 to 51.4 GHz. The measured amplitude and phase errors are 0.5 dB and 2.5°, respectively. Between 15 °C and 50 °C, the measured minimum phase noise at 1-MHz offset and jitter integrated from 1 kHz to 40 MHz are lower than −106 dBc/Hz and 110 fs, respectively. Compared to the prior art, the proposed $V$ -band subharmonically injection-locked quadrature QVCO and quadrature FLL feature excellent performance and good robustness.