Title :
A fully integrated low phase noise VCO for IEEE 802.11a WLAN transceivers in 0.18μm CMOS
Author :
Jin, Lin ; Li, Zhiqun ; Wang, Zhigong ; Li, Wei
Author_Institution :
Inst. of RF-&OE-ICs, Southeast Univ., Nanjing, China
Abstract :
A fully integrated voltage-controlled oscillator (VCO) for IEEE 802.11a WLAN transceivers is proposed and implemented in 0.18 μm CMOS technology with 1.8 V supply voltage. The VCO core adopts the topology of complementary cross-coupled differential inductance-capacitance (LC) tank. The VCO operates from 4.56 to 4.77 GHz with the varactor control voltage (Vtune) changing from 0.3 to 1.5 V and has a gain (Kv) of 175 MHz/V. A phase noise of -122.3 dBc/Hz at 1 MHz offset frequency is demonstrated for an oscillation frequency of 4.56 GHz. The average power consumption of this VCO is 30.24 mW.
Keywords :
CMOS integrated circuits; network topology; phase noise; transceivers; voltage-controlled oscillators; wireless LAN; CMOS technology; IEEE 802.11a WLAN transceivers; circuit topology; complementary cross-coupled differential inductance-capacitance tank; frequency 1 MHz; frequency 4.56 GHz to 4.77 GHz; integrated low phase noise VCO; oscillation frequency; phase noise; power 30.24 mW; power consumption; size 0.18 mum; varactor control voltage; voltage 0.3 V to 1.5 V; voltage 1.8 V; voltage-controlled oscillator; CMOS technology; Energy consumption; Frequency; Phase noise; Topology; Transceivers; Varactors; Voltage control; Voltage-controlled oscillators; Wireless LAN; CMOS integrated circuits; IEEE 802.11a; low phase noise; voltage-controlled oscillator (VCO); wireless local area networks (WLAN);
Conference_Titel :
Solid-State and Integrated-Circuit Technology, 2008. ICSICT 2008. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2185-5
Electronic_ISBN :
978-1-4244-2186-2
DOI :
10.1109/ICSICT.2008.4734865
