⚡ 本页包含 AI 生成的分析内容,仅供参考
本文提出了一种工作在660-676GHz的4×2振荡器辐射阵列,利用内禀频率滤波反馈技术增强谐波功率,解决了CMOS工艺在500GHz以上太赫兹频段功率生成困难的问题。
The THz region of the electromagnetic spectrum is gaining interest due to its unique spectroscopic properties that make it useful for gas detection, biological imaging, and accurate timekeeping. While several techniques allowed these applications to be explored in the lower region of the THz spectrum, effective power generation at frequencies above 500GHz is still a challenge in CMOS. However, maximum gas absorption for rotational spectroscopy occurs at this range, and at even higher frequencies gas vibrational modes can be detected [1], making such frequency sources attractive for current and future applications. As fundamental oscillation is not possible above the transistor fmax, THz sources have to multiply the frequency of an external or an on-chip mm-wave oscillator. For the same resulting frequency, a combination of different fundamental frequencies and multiplication numbers can be used. However, as the fundamental
Gabriel Guimaraes, Patrick Reynaert
KU Leuven, Leuven, Belgium