TY - GEN
T1 - New frequency plan and reconfigurable 6.6 / 7.128 GHz CMOS quadrature VCO for MB-OFDM UWB application
AU - Huang, Tzuen Hsi
AU - Wang, Jia Lun
PY - 2007/10/2
Y1 - 2007/10/2
N2 - This work presents a new frequency plan and a reconfigurable 6.6 / 7.128 GHz CMOS quadrature voltage-controlled oscillator (QVCO) with integrating differential switchable inductors. Based on this frequency plan, a further simple synthesizer architecture is proposed with only two PLL's, two mixers, and one multiplexer. The QVCO is implemented with the mutual-coupling structure of two differential LC-tuned oscillator cores in a 0.18μm RF CMOS technology. The core stages draw a total of 10 mA from the supply voltage of 2.0 V. The measured phase noise at 6.6 GHz is -116 dBc/Hz at 1 MHz offset. By utilizing a switched capacitance array, a tuning range of 860 MHz is achievable with four sub-bands. The figure of merits (FOM) is about -178 dB. According to the new frequency plan, this QVCO can be served as one of the original signal sources for the MB-OFDM UWB frequency synthesizer.
AB - This work presents a new frequency plan and a reconfigurable 6.6 / 7.128 GHz CMOS quadrature voltage-controlled oscillator (QVCO) with integrating differential switchable inductors. Based on this frequency plan, a further simple synthesizer architecture is proposed with only two PLL's, two mixers, and one multiplexer. The QVCO is implemented with the mutual-coupling structure of two differential LC-tuned oscillator cores in a 0.18μm RF CMOS technology. The core stages draw a total of 10 mA from the supply voltage of 2.0 V. The measured phase noise at 6.6 GHz is -116 dBc/Hz at 1 MHz offset. By utilizing a switched capacitance array, a tuning range of 860 MHz is achievable with four sub-bands. The figure of merits (FOM) is about -178 dB. According to the new frequency plan, this QVCO can be served as one of the original signal sources for the MB-OFDM UWB frequency synthesizer.
UR - http://www.scopus.com/inward/record.url?scp=34748907905&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34748907905&partnerID=8YFLogxK
U2 - 10.1109/MWSYM.2007.380091
DO - 10.1109/MWSYM.2007.380091
M3 - Conference contribution
AN - SCOPUS:34748907905
SN - 1424406889
SN - 9781424406883
T3 - IEEE MTT-S International Microwave Symposium Digest
SP - 843
EP - 846
BT - 2007 IEEE MTT-S International Microwave Symposium Digest
T2 - 2007 IEEE MTT-S International Microwave Symposium, IMS 2007
Y2 - 3 June 2007 through 8 June 2007
ER -