⚡ 本页包含 AI 生成的分析内容，仅供参考
针对太赫兹开环信号源频率漂移问题，采用90nm SiGe BiCMOS工艺设计了一款300GHz频率合成器，实现了7.9%的锁定范围。该合成器通过锁相环或注入锁定技术提高了频率稳定性，适用于相干通信和雷达系统。
University of California, Davis, CA 1 2 The THz/sub-mm-Wave band is known to provide unique applications in spectroscopy, imaging and high-data-rate wireless communication. An accurate THz source is essential in coherent communications, radar systems, and frequency metrology. Recently, THz sources based on coupled VCOs with harmonic generation have been proposed [1]. However, open-loop signal sources exhibit severe frequency fluctuation, and are vulnerable to temperature/process/supply-induced frequency drift. The need for precise oscillation frequency with wide tuning range and low close-in phase noise calls for closed-loop topologies. Millimeter-Wave PLLs incorporating push-push VCOs have been demonstrated up to 164GHz [2] in silicon technology. [3] presented a 300GHz PLL with 0.12% locking range in III-IV technology. In a high-frequency synthesizer, the VCO and the divider exert dominant effects
Pei-Yuan Chiang1, Zheng Wang1, Omeed Momeni2, Payam Heydari1
University of California, Irvine, CA,