Conference paper
Design and Optimization of CMOS Switches for Switched Tuning of LC Resonators
Switched tuning of RF integrated circuits has had a reputation of being inferior compared to continuous varactor tuning due to excessive loss in the switches. This paper models CMOS switches and switched capacitance tuning of LC resonators. Closed form expressions are derived that show what the optimal switch size is and what the corresponding Q-value is.
Finally a comparison is made between different layout styles. These results show that switched tuning is a very attractive alternative to varactor tuning.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2001 |
| Pages: | 770-773 |
| Proceedings: | ISCAS 2001. The 2001 IEEE International Symposium on Circuits and Systems |
| ISBN: | 0780366859 and 9780780366855 |
| Types: | Conference paper |
| DOI: | 10.1109/ISCAS.2001.922351 |
CMOS integrated circuits CMOS switch Capacitance Circuit optimization Design optimization LC resonator Q-factor RF integrated circuit Radio frequency Radiofrequency integrated circuits Semiconductor device modeling Switches Switching circuits Varactors circuit optimisation circuit resonance circuit tuning design optimization switched capacitance tuning switched capacitor networks
