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该论文提出了一种基于多谐振、多核、多模式(3M)技术的谐波提取VCO,工作频率83.3-104.7GHz,实现了-124dBc/Hz的相位噪声和190.7dBc/Hz的FoMT,解决了W波段VCO宽调谐范围与低相位噪声之间的权衡难题。
190.7dBc/Hz FoMT Hao Guo1, Yong Chen1, Yunbo Huang1, Pui-In Mak1, Rui P. Martins1,2 University of Macau, Macau, China Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 The W-band offers a rich spectrum resource for thriving industries, such as automotive radar and satellite communications. Yet, developing a W-band voltage-controlled oscillator (VCO) simultaneously featuring a wide tuning range (TR) and low absolute phase noise (PN) is still challenging. The degraded quality factor (Q) of the switchedcapacitor array (SCA) tightens the trade-off between TR and absolute PN at W-band oscillation frequency (FOSC). The multi-resonant VCO [1] alleviates such trade-off by the 3rd harmonic extraction. This act lowers FOSC by 3×, and the created harmonic resonances can reshape the impulse sensitivity function (ISF), suppressing the circuit noise to PN upconversion. Yet, a single-core VCO has limited output power, and the achievable Q of
Multi-Resonance, Multi-Core, and Multi-Mode (3M), Techniques Achieving -124dBc/Hz Absolute PN and