An ultra-wideband injection-locked frequency divider with a multi-order resonator and the passive injection-boosted technique
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作者
Cheng, Shuai; Ye, Hongbo; Li, Linhong; Zhang, Zhaofeng
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刊物名称
IEICE ELECTRONICS EXPRESS
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年、卷、文献号
2022, 19, 1349-2543
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关键词
Cheng, Shuai; Ye, Hongbo; Li, Linhong; Zhang, Zhaofeng
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摘要
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 x 0.63 mm(2).
