| Summary: | 碩士 === 國立暨南國際大學 === 電機工程學系 === 101 === This thesis mainly utilizes standard TSMC 90nm CMOS process technology to implement up-conversion mixers for V-band and W-band. The thesis is composed of three sections:
In the first section, a 60 GHz double-balanced mixer for direct up-conversion is reported. The up-conversion mixer comprises a double-balanced Gilbert cell using current injection and negative resistance compensation techniques for power consumption reduction and conversion gain (CG) enhancement, respectively, a Marchand balun for converting the single LO input signal to differential signal, and another Marchand balun for converting the differential RF output signal to single signal. The measured results indicate that this low-power CMOS up-conversion mixer with high CG is very promising for 60-GHz-band RFIC applications.
In the second section, a V-band up-conversion mixer, which is utilizes the same technologies in the first section; moreover, it has cascode transconductance stage for conversion gain (CG) enhancement and power consumption reduction (current-reuse). This up-conversion mixer has excellent performance of conversion gain and power consumption. In addition, the LO-RF isolation and IF bandwidth are better than the mixer in section one. In the third section, a low-power CMOS up-conversion mixer with high CG and excellent LO-RF isolation for 77~81 GHz short range automotive radar is reported. The mixer comprises an enhanced double-balanced Gilbert cell with current injection for power consumption reduction, and dual negative resistance compensation for conversion gain (CG) enhancement, a Marchand balun for converting the single LO input signal to differential signal, and another Marchand balun for converting the differential RF output signal to single signal. The measured result indicates that the proposed up-conversion mixer with dual negative resistance compensation is promising for W-band RFIC applications.
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