| Summary: | 碩士 === 長庚大學 === 電子工程學系 === 98 === In this paper, we present to apply 24GHz dual-phase output and 5.2GHz quadrature output VCO which is fabricated in a TSMC 0.18μm 1P6M CMOS process, provide by National Chip Implementation Center(CIC). For this demands of wireless application, is focused on the characteristic of low power consumption. Two of them are used single-ended conventional Colpitts oscillator basis circuit frames. Planning the the RF frequency are 24GHz and 5.2GHz. These supply voltage are both 1.8V, and the base-band frequency are the same 100MHz.
Technical advanced in wireless communications and LANs have created a need for integrated circuits on system. The recent trend is to design almost all circuits in differential form and dividing the signal into I/Q two channels. Besides, we boldness used single-ended conventional Colpitts oscillator frame for cut down phase noise and power consumption. Hope to apply in transceiver will be work. In this thesis, a radio-frequency dual-phase and quadrature VCO are designed and the dual-phase VCO realized it on a chip.
Dual-phase VCO output power is -7.448dBm. Tuning range is 23.6 ~ 24.1GHz. Center frequency is 24GHz. Power Consumption is 3.06mW. Phase noise is -104.4dBc/Hz@1MHz. 5.2GHz Quadrature VCO output is -6.842dBm. Tuning range is 4.408 ~ 5.25GHz. Center frequency is 5.2GHz. Power consumption is 4.482mW. Phase noise is -111.902 dBc/Hz@1MHz. 20GHz Quadrature VCO output is -10.265dBm. Tuning range is 20.21 ~ 20.79GHz. Center frequency is 20GHz. Power consumption is 8.568mW. Phase noise is -101.454 dBc/Hz@1MHz.
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