A 44-94.7 GHz Injection-Locked Frequency Divider Using Series-Resonating Technique

Cheng, Shuai; Zhu, Di; Mei, Niansong; Zhang, Zhaofeng

doi:10.1109/icet51757.2021.9451159

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2022

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“…With the above techniques, our circuit has a measured LR from 48 GHz to 98 GHz, which makes it possible to cover multiple applications using one frequency synthesizer. We note that the earlier work is presented in a conference paper [29]. This paper adds detailed LR analysis of the 4th-order network and the simulated LR increment is demonstrated due to the passive injection-boosted technique.…”

Section: Introductionmentioning

confidence: 86%

An ultra-wideband injection-locked frequency divider with a multi-order resonator and the passive injection-boosted technique

Cheng

et al. 2022

IEICE Electron. Express

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This paper presents an ultra-wideband injection-locked frequency divider (ILFD) design which is applicable to a multi-applications system. A transformer-based multi-order resonator is utilized in the ILFD to attain a flat phase response. The passive injection-boosted technique is proposed to increase the injection signal amplitude and thus widen the locking range. With the injection-boosted technique and the multi-order resonator, the proposed ILFD demonstrates a measured locking range of 50 GHz, covering 48 GHz to 98 GHz. The divider designed in a 40-nm process consumes a DC power of 11.2 mW excluding buffers and occupies a core size of 0.38 × 0.63 mm 2 .

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Section: Introductionmentioning

confidence: 86%