Chia-Wei Chang, Jhin-Fang Huang, Sheng-Lyang Jang, Ying-Hsiang Liao, and Miin-Horng Juang
Department of Electronic Engineering, National Taiwan University of Science and Technology, Taiwan
Abstract—This paper proposes CMOS LC-tank divide-by-3 injection locked frequency dividers (ILFDs) fabricated in 0.18 μm and 90nm CMOS process and describes the circuit design, operation principle and measurement results of the ILFDs. The ILFDs use two injection series-MOSFETs across the LC resonator and a differential injection signal is applied to the gates of injection MOSFETs. The direct-injection divide-by-3 ILFDs are potential for radio-frequency application and can have wide locking range.
Keywords—LC-tank; divide-by-3 injection-locked frequency divider; direct-injection; locking range; CMOS.
Manuscript Number: 1674-8042(2010)supp.-0118-03
dio: 10.3969/j.issn1674-8042.2010.supp..32
References
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