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A W‐band injection‐locked frequency divider with modified transformer coupling resonant
Author(s) -
Tang Lu,
Cai Jingyi,
Zhang Youming,
Tang Xusheng,
Liu Yingyi,
Shi Xiaoguang
Publication year - 2021
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32713
Subject(s) - frequency divider , dbc , phase noise , materials science , transformer , cmos , figure of merit , electrical engineering , chip , optoelectronics , engineering , voltage
A W‐band injection‐locked frequency divider (ILFD) with modified transformer coupling resonant is demonstrated and implemented in a 40‐nm CMOS technology. The locking range and operation frequency of the ILFD is improved without increasing chip area or circuit complexity. The measured locking range of the ILFD covers from 86 to 104 GHz. The measured phase noise of the modified W‐band ILFD is −114.89 dBc/Hz at 1 MHz. The ILFD also attains a figure of merit normalized (FoM) of 243.1.

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