Title :
Graphical optimization of 4GHz CMOS LC_VCO
Author :
Ben Issa, Dalenda ; Akacha, Sarra ; Kachouri, Abdennaceur ; Samet, Mounir
Author_Institution :
Lab. LETI - ENIS, Sfax Univ., Sfax
Abstract :
This paper presents graphical optimization method of LC voltage controlled oscillator (LC_VCO). This method accomplishes with optimum size of LC_VCO components. This oscillator is characterized by tuning range of 4% from carrier frequency centered in 4 GHz. The phase noise is -126 dBc/Hz at 1 MHz offset frequency from carrier frequency of 4 GHz and the power consumption is 11.6 mW from a 2.5 V supply voltage. Theory approximations by graphical optimization method are verified by simulation.
Keywords :
CMOS integrated circuits; phase noise; voltage-controlled oscillators; CMOS LC VCO; carrier frequency; frequency 4 GHz; graphical optimization; offset frequency; phase noise; power consumption; voltage 2.5 V; voltage controlled oscillator; Capacitance; Circuits; Frequency; Inductors; Optimization methods; Phase noise; Tuning; Varactors; Voltage; Voltage-controlled oscillators; MOS varactor; UWB; VCO; graphic optimization; inductor model; phase noise;
Conference_Titel :
Design & Technology of Integrated Systems in Nanoscal Era, 2009. DTIS '09. 4th International Conference on
Conference_Location :
Cairo
Print_ISBN :
978-1-4244-4320-8
Electronic_ISBN :
978-1-4244-4321-5
DOI :
10.1109/DTIS.2009.4938019
