DocumentCode :
3390347
Title :
A 0.18 mum CMOS Low Power Ring VCO with 1 GHZ Tuning Range for 3-5 GHZ FM-UWB Applications
Author :
Tong, Tian ; Wenhua, Zhong ; Hvolgaard, Jan Mikkelsen ; Larsen, Torben
Author_Institution :
Radio-Frequency Integrated Syst. & Circuit Div., Aalborg Univ.
fYear :
2006
fDate :
Oct. 30 2006-Nov. 1 2006
Firstpage :
1
Lastpage :
5
Abstract :
A 0.18 mum CMOS low power ring VCO for 3-5 GHz FM-UWB system applications is presented. In order to achieve a 1 GHz ultra-wide tuning range while retaining a low power consumption the conventional ring configuration is modified. A detailed analysis of the proposed VCO configuration is presented in terms of oscillating frequency, control performance and phase noise performance. During the design phase several tradeoffs were made between power consumption, phase noise and tuning range. Measurement shows that the proposed VCO configuration can provide a tuning range of 1.4 GHZ at 2.7-4.1 GHz while offering a -70 dBc/Hz phase noise level at a 1 MHz frequency offset. The VCO furthermore shows a good tuning linearity. In total the circuit consumes 9.5 mW
Keywords :
CMOS integrated circuits; ultra wideband communication; voltage-controlled oscillators; 0.18 micron; 1 GHz; 3 to 5 GHz; CMOS; FM-UWB applications; VCO; voltage controlled oscillator; Circuit optimization; Energy consumption; Frequency measurement; Linearity; Noise measurement; Performance analysis; Phase measurement; Phase noise; Tuning; Voltage-controlled oscillators;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communication systems, 2006. ICCS 2006. 10th IEEE Singapore International Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0411-8
Electronic_ISBN :
1-4244-0411-8
Type :
conf
DOI :
10.1109/ICCS.2006.301371
Filename :
4085666
Link To Document :
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