## Abstract This article presents a new quadrature voltage‐controlled oscillator (QVCO). The LC‐tank QVCO consists of two first‐harmonic injection‐locked oscillators (ILOs). The outputs of one ILO are injected to the gates of the MOS transistors on the other ILO and vice versa so as to force the tw
CMOS Colpitts Quadrature VCO Using the Body Injection-Locked Coupling Technique
✍ Scribed by Jang, S.-L.; Huang, S.-H.; Liu, C.-C.; Juang, M.-H.
- Book ID
- 120666257
- Publisher
- IEEE
- Year
- 2009
- Tongue
- English
- Weight
- 828 KB
- Volume
- 19
- Category
- Article
- ISSN
- 1531-1309
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## Abstract This article presents a CMOS quadrature voltage‐controlled oscillator (QVCO). The LC‐tank QVCO consists of two cross‐coupled __n__MOS divide‐by‐2 injection‐locked frequency divider (ILFDs) with a tail transistor, which serves the role of frequency doubler. The output of the tail transis
## Abstract A diode‐ring coupling technique has been used to design quadrature voltage‐controlled oscillators (QVCOs), which consist of two n‐core VCOs.The proposed CMOS QVCOs have been implemented with the TSMC 0.18 μm CMOS technology. A single‐band and a dual‐band QVCOs have been implemented to s