A W‐band injection‐locked frequency divider with modified transformer coupling resonant. Issue 4 (12th November 2020)

• Record Type: Journal Article
• Authors: Tang, Lu; Cai, Jingyi; Zhang, Youming; Tang, Xusheng; Liu, Yingyi; Shi, Xiaoguang
• Is Part Of: Microwave and optical technology letters. Volume 63:Issue 4(2021)
• Page Start: 1091
• Page End: 1096
• Publication Date: 2020-11-12
• Subjects: CMOS -- injection‐locked frequency divider (ILFD) -- locking range -- transformer -- W‐band; Microwaves -- Periodicals; Optics -- Periodicals; 621
• DOI: 10.1002/mop.32713
• Languages: English
• ISSNs: 0895-2477

Abstract

Abstract: 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.