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The defense date of the thesis is 2009-02-18
The current date is 2019-07-18
URN etd-0218109-084944 Statistics This thesis had been viewed 1939 times. Download 4 times. Author Jun-Kai Pai Author's Email Address No Public. Department Communication Engineering Year 2008 Semester 1 Degree Master Type of Document Master's Thesis Language English Page Count 50 Title 1V 5.45-5.65Ghz CMOS VOLTAGE-CONTROLLED OSCILLATOR FOR WLAN SYMTHESIZER Keyword VCO VCO Abstract This thesis presents a 1-V CMOS quadrature voltage-controlled oscillator designed for WLAN 802.11a. Three digital bits are use to provide coarse frequency tuning to the QVCO from 5.45 to 5.65 GHz. A current drive bulk is employed to improve the linearity of fine tuning. As a result, the QVCO can be designed with a small VCO gain to ensure low phase noise and good spur performance under a low supply voltage. The QVCO is designed for a 0.18-?m CMOS process and operated at 1-V supply voltage. The simulated phase noise is -108 dBc/Hz at a frequency offset of 1 MHz. The QVCO dissipates 16 mW and occupies a chip area of 1.5 mm2 Advisor Committee Shu-Chuan Huang - advisor
Files Date of Defense 2008-01-20 Date of Submission 2009-02-18