Title :
Design of VCO for 2.4GHz Wireless Applications Using Transmission Line Resonators
Author :
Pokharel, R.K. ; Imada, A. ; Sasaki, S. ; Kanaya, H. ; Yoshida, K.
Author_Institution :
Kyushu Univ., Fukuoka
Abstract :
A voltage-controlled oscillator (VCO) employing on-chip coplanar waveguide (CPW) resonator is proposed for 2.4GHz wireless applications and comparative study between the proposed VCO and a conventional VCO which is composed of LC-tank resonator (LC-VCO), is carried out. By comparing the measured results on the fabricated chip on TSMC 0.35 mum BiCMOS technology, it has noted that the VCO employing on-chip CPW resonator is smaller in size by about 30% and frequency-tuning range is higher than LC-VCO. Phase noise is comparable but power consumption is deteriorated.
Keywords :
BiCMOS integrated circuits; UHF integrated circuits; UHF oscillators; coplanar waveguide components; resonators; voltage-controlled oscillators; BiCMOS technology; LC-tank resonator; UHF oscillators; frequency 2.4 GHz; size 0.35 mum; transmission line resonators; voltage-controlled oscillators; BiCMOS integrated circuits; Coplanar transmission lines; Coplanar waveguides; Frequency measurement; Power transmission lines; Semiconductor device measurement; Size measurement; Transmission line measurements; Transmission lines; Voltage-controlled oscillators; CPW resonator; LC-tank resonator; VCO; chip size; frequency-tuning range;
Conference_Titel :
Microwave Conference, 2007. APMC 2007. Asia-Pacific
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0748-4
Electronic_ISBN :
978-1-4244-0749-1
DOI :
10.1109/APMC.2007.4554706
