Design and characterization of a 190-GHz voltage-controlled oscillator
Design and characterization of a 190-GHz voltage-controlled oscillator
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190GHz 压控振荡器的设计和表征
DOI：
10.1109/eumc.2016.7824387
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
F. Ellinger
中科院分区：
文献类型：
--
作者：
D. Fritsche;Songhui Li;N. Joram;C. Carta;F. Ellinger
介绍了一种采用0.13 μ mSiGe BiCMOS工艺实现的190 GHz基模压控振荡器（VCO）。VCO针对mW级输出功率和最低DC功耗进行了优化，mW级输出功率通常是亚THz无线通信系统中的本地振荡器信号所需的。通过在偏移锁相环内采用所需的外部次谐波混频器，改进了此频率范围内VCO的传统测量技术。所制造的VCO的测量显示频率调谐范围从184.5 GHz到196.7 GHz，并且在10 MHz偏移处的相位噪声为−91 dBc/Hz，振荡频率为196.7 GHz。最大输出功率为−0.8 dBm，直流功耗为18.2 mW。据作者所知，所得到的5.1%的功率效率是在这些频率下工作的VCO的最高报告。
This paper presents a fundamental-mode voltage-controlled oscillator (VCO) for frequencies around 190 GHz fabricated in a 0.13-μm SiGe BiCMOS technology. The VCO is optimized for a mW-level output power, which is typically required for the local oscillator signal in sub-THz wireless communication systems, and for lowest DC power consumption. The conventional measurement technique for VCOs in this frequency range is improved by employing the required external subharmonic mixer within an offset phase-locked loop. Measurements of the fabricated VCO show a frequency tuning range from 184.5 GHz to 196.7 GHz and a phase noise of −91 dBc/Hz at 10 MHz offset from the oscillation frequency at 196.7 GHz. The maximum output power is −0.8 dBm at a DC power consumption of 18.2 mW. To the authors' best knowledge, the resulting power efficiency of 5.1 % is the highest reported for VCOs operating at these frequencies.