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首页> 外文期刊>Microelectronics journal >New implementation of injection locked technique and its application to low phase noise quadrature oscillators
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New implementation of injection locked technique and its application to low phase noise quadrature oscillators

机译：注入锁定技术的新实现及其在低相位噪声正交振荡器中的应用

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摘要

A new implementation of the injection locked technique is proposed. The incident signal is directly injected into the common-source connection node of the sub-harmonic oscillator instead of the gate of the tail current source, and a narrowband noise filtering network is inserted into the same node to suppress the tail current source noise. A novel quadrature oscillator with the proposed injection locked technique is presented. The simulations show that the phase noise of the quadrature oscillator is about 7 dB better than that of the standalone sub-harmonic oscillator. The quadrature oscillator has been implemented in 0.25 um CMOS process and the measured results show that the proposed quadrature oscillator could achieve a phase noise of -130 dBc/Hz at 1 MHz offset from 1.13 GHz carrier while only drawing an 8.0 mA current from the 2.5 V power supply.
机译：提出了一种注入锁定技术的新实现。入射信号直接注入到次谐波振荡器的共源连接节点中，而不是注入尾电流源的栅极，而窄带噪声滤波网络被插入到同一节点中以抑制尾电流源噪声。提出了一种具有所提出的注入锁定技术的新型正交振荡器。仿真表明，正交振荡器的相位噪声比独立的次谐波振荡器的相位噪声好约7 dB。正交振荡器已在0.25 um CMOS工艺中实现，测量结果表明，所提出的正交振荡器在1.13 GHz载波偏移1 MHz时可实现-130 dBc / Hz的相位噪声，而仅从2.5Ω汲取8.0 mA电流。 V电源。

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