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引用次数: 15
摘要
提出了一种毫米波压控振荡器的新型电路拓扑结构。通过采用导纳变换技术，所提出的电路可以维持接近晶体管截止频率的基频振荡。利用标准的0.18 μ m CMOS工艺，实现了一个v波段压控振荡器进行演示。所制备的电路在63 GHz附近的频率调谐范围为670 MHz。测量的输出功率和相位噪声在1mhz偏移量分别为-15 dBm和-89 dBc/Hz。在1.8 v电源电压下工作，压控振荡器和输出缓冲器的总直流电流消耗为55ma。
A 63-GHz voltage-controlled oscillator in 0.18-μm CMOS
A novel circuit topology for the millimeter-wave voltage-controlled oscillators (VCOs) is presented. By employing the admittance-transforming technique, the proposed circuit can sustain fundamental oscillation close to the cut-off frequency of the transistors. Utilizing a standard 0.18-mum CMOS process, a V-band VCO is implemented for demonstration. The fabricated circuit exhibits a frequency tuning range of 670 MHz in the vicinity of 63 GHz. The measured output power and phase noise at 1-MHz offset are -15 dBm and -89 dBc/Hz, respectively. Operated at a 1.8-V supply voltage, the total dc current consumption of the VCO and the output buffers is 55 mA.
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