Title :
A fully integrated multi-band VCO design with capacitive coupling for WLAN/WiMAX applications
Author :
Kao, Chih-Yuan ; Yang, Jeng-Rern
Author_Institution :
Dept. of Commun. Eng., Yuan Ze Univ., Jhongli
Abstract :
A fully integrated voltage-controlled oscillator (VCO) design for IEEE 802.11b/g(WLAN)@2.4 GHz - IEEE 802.16d(WiMAX)@3.5 GHz and IEEE 802.11a(WLAN)@5.2 GHz is presented. With capacitive coupling, current can be controlled by bias for demand respectively. It can reduce power consumption for other operation bands. With 1.2 V voltage supply, the power dissipation is only 6.52 mW for 2.4 GHz band - 4.67 mW for 3.5 GHz band - 1.79 mW for 5.2 GHz band. The phase noise at 1 MHz offset frequency from carrier are -119.2 dBc/Hz for 2.4 GHz - -119.8 dBc/Hz for 3.5 GHz and -118.1 dBc/Hz for 5.2 GHz. And chip size is only 0.49 mm2. The VCO circuit has been fabricated in TSMC 0.18 mum CMOS technology.
Keywords :
CMOS integrated circuits; MMIC oscillators; WiMax; coupled circuits; network synthesis; phase noise; voltage-controlled oscillators; wireless LAN; CMOS technology; WLAN-WiMAX applications; capacitive coupling; frequency 1 MHz; frequency 2.4 GHz; frequency 3.5 GHz; frequency 5.2 GHz; fully integrated multi-band VCO design; offset frequency; phase noise; power 1.79 mW; power 4.67 mW; power 6.52 mW; power consumption; power dissipation; size 0.18 mum; voltage 1.2 V; voltage-controlled oscillator; wireless LAN; CMOS technology; Energy consumption; Frequency; Phase noise; Power dissipation; Power supplies; Voltage; Voltage-controlled oscillators; WiMAX; Wireless LAN; VCO; WLAN; WiMAX; multi-band;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2008. ICMMT 2008. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-1879-4
Electronic_ISBN :
978-1-4244-1880-0
DOI :
10.1109/ICMMT.2008.4540729
