Title :
A fully integrated 5.5 GHz cross-coupled VCO with high output power using 0.25μm CMOS technology
Author :
Dang, J. ; Noculak, A. ; Haddadinejad, S. ; Jungemann, C. ; Meinerzhagen, B.
Author_Institution :
Tech. Univ. Braunschweig, Braunschweig, Germany
Abstract :
In this paper a PMOS-NMOS cross-coupled voltage controlled oscillator (VCO) using 0.25 μm CMOS technology is demonstrated. This VCO consumes 6.6 mW DC power for a supply voltage of 2.5 V. The tuning range is about 15% from 5 GHz to 5.8 GHz, while the control voltage is tuned from 0 V to 2.5 V Over the entire frequency tuning range a constant high output power of around 0 dBm is obtained leading to a good drive ability for mixer circuits. Measured phase noise for the free running VCO is about -90 dBc/Hz and below at 1 MHz offset frequency.
Keywords :
CMOS analogue integrated circuits; microwave integrated circuits; microwave mixers; microwave oscillators; phase noise; voltage-controlled oscillators; CMOS technology; PMOS-NMOS cross-coupled voltage controlled oscillator; control voltage; drive ability; free running VCO; frequency 5 GHz to 5.8 GHz; high output power; mixer circuits; phase noise; power 6.6 mW; size 0.25 mum; voltage 0 V to 2.5 V; MOSFET; Phase noise; Power generation; Tuning; Varactors; Voltage-controlled oscillators; Cross-coupled VCO; MOS varactor; improvement of output power;
Conference_Titel :
Electronics, Circuits and Systems (ICECS), 2014 21st IEEE International Conference on
DOI :
10.1109/ICECS.2014.7049970
