Title :
A Continuously Tuned Varactor Array
Author :
Bruss, Stephen P. ; Spencer, Richard R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California, Davis, CA, USA
Abstract :
A MOS varactor circuit uses an array of softly switched varactors to improve the linearity of the capacitance tuning-control and reduce the dependence on RF-input signal level while increasing the useful capacitance-tuning range. Test circuits have been fabricated in both 90 nm and 0.35 mum CMOS processes and are directly compared to a conventional varactor.
Keywords :
CMOS integrated circuits; circuit tuning; integrated circuit testing; varactors; CMOS process; MOS varactor circuit; capacitance tuning-control; circuit fabrication; circuit testing; size 0.35 mum; size 90 nm; switched varactor array; CMOS; Capacitance utilization; MOS varactor; capacitor array; soft-switched; softly switched; tuning range; tuning ratio; varactor Q; varactor linearization;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2009.2027096
