Title :
11.8GHz CMOS VCO With 62% Tuning Range Using Switched Coupled Inductors
Author :
Demirkan, Murat ; Bruss, Stephen P. ; Spencer, Richard R.
Author_Institution :
Univ. of California, Davis
Abstract :
A VCO uses coupled switched inductors to achieve a 61.9% tuning range centered at 11.75 GHz. The phase noise is measured to be -83 and -106 dBc/Hz at 100 kHz and 1 MHz offsets respectively. This 0.076 mm2 VCO is fabricated in a 90 nm standard digital CMOS process, uses 33% more area than a single-inductor VCO and consumes 7.7 mW from a 1.2 V supply.
Keywords :
CMOS integrated circuits; inductors; microwave integrated circuits; microwave oscillators; phase noise; tuning; voltage-controlled oscillators; CMOS VCO; frequency 100 kHz; frequency 11.8 GHz; phase noise; power 7.7 mW; single-inductor VCO; size 90 nm; standard digital CMOS process; switched coupled inductors; voltage 1.2 V; CMOS technology; Circuit optimization; Coils; Coupling circuits; Inductors; Mutual coupling; Phase noise; Switches; Tuning; Voltage-controlled oscillators; CMOS; phase noise; transformers; tuning range; voltage controlled oscillator (VCO);
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0530-0
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2007.380910
