This article designs and analyzes LC injection-locked frequency dividers (ILFDs) using dual-resonance LC resonator. The ILFD consists of two single-resonance LC-tank capacitive cross-coupled sub-ILFDs operating at 3.7 and 5.1 GHz, respectively, and the two sub-ILFDs are coupled by the electric field through a pair of metal–insulator–metal (MIM) capacitors. The die area in the Taiwan Semiconductor Manufacturing Corporation (TSMC) 0.18- $\mu \text{m}$ CMOS is $0.65\times1.023$ mm². By controlling the gate voltages of the switching transistors, the ILFD has three different operational modes—high-band dominant mode, low-band dominant mode, and concurrent oscillation mode. Overlapped locking range is demonstrated for the first time in the designed electric-field coupling resonator ILFD. Non-overlapped locking range is found for the ILFD manifesting an effect of the dual-resonance resonator.

中文翻译：

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使用电场耦合双谐振器的 2 分注入锁定分频器

本文设计和分析 液晶显示器 使用双谐振的注入锁定分频器 (ILFD) 液晶显示器谐振器。ILFD 由两个单谐振液晶显示器-槽电容交叉耦合子ILFD分别在3.7和5.1 GHz下工作，并且两个子ILFD通过一对金属-绝缘体-金属（MIM）电容器通过电场耦合。台积电 (TSMC) 芯片面积 0.18- $\mu \text{m}$ CMOS是 $0.65\times1.023$ 毫米²。通过控制开关晶体管的栅极电压，ILFD 具有三种不同的工作模式——高频段主导模式、低频段主导模式和并发振荡模式。在设计的电场耦合谐振器 ILFD 中首次证明了重叠锁定范围。发现 ILFD 的非重叠锁定范围表现出双谐振谐振器的效果。