第四章為具低功耗無除頻器頻率追蹤迴路自對準之K頻段次諧波注入鎖定四相位壓控振盪器,首先介紹理論模型及轉移函數,接著利用第三章提到的模擬方法,由ADS(advance design system)軟體進行模擬分析鎖頻迴路的穩定度與相位雜訊及抖動,利用變壓器耦合技術、電流再利用自我注入耦合技術分別能進一步提升四相位壓控振盪器鎖定範圍及直流功耗的特性,並將低功耗無除頻器鎖頻迴路結合K頻段式次諧波注入鎖定四相位壓控振盪器,可以達到8分之一的參考訊號注入。量測的鎖頻範圍為21.7到23.6 GHz,各個控制電壓的鎖定範圍約為150 MHz,輸出功率大於-5 dBm。距載波偏移1 MHz的相位雜訊為-125.2 dBc/Hz,抖動量積分範圍由1 kHz到40 MHz為32.4 fs,電路直流總功耗為24.4 mW,和過去文獻比較擁有最佳的優化指數(FOM)。 ;This thesis focuses on the research of frequency synthesizers with different architectures, and the application of millimeter-wave injection-locked technique in the conventional phase-locked loops (PLL) and the combination of divider-less frequency tracking loop method to realize frequency-locked loops (FLL), and further realize a quadrature outputs LO with low dc power consumption, low circuit complexicity, low phase noise, and low jitter.