Integrated Low Phase Noise Millimeter-Wave Oscillators Based on High-Order Resonance Circuits

智力优势：振荡器是通信系统、雷达和许多电子电路中的基本构件。 振荡器的相位噪声限制了RF和微波收发器的性能。 无线电接收机中的本地振荡器的相位噪声将相邻信道下变频到中频，从而限制了接收机对附近干扰和干扰的抗扰性。 发射机中本机振荡器的相位噪声破坏了载波相位中携带的信息。 在无线电发射机中，相位噪声也会淹没附近的弱信道。由于无线用户的数量以及因此RF干扰量持续增加，现代通信标准要求收发器中的本地振荡器具有出色的相位噪声性能。 在本计画中，我们提出几种新的电路设计方法，以设计低相位杂讯的微波毫米波振荡器。更广泛的影响：任何简单和低相位噪声振荡器设计的进步都将有助于改善通信系统的整体性能，并可减轻对其他收发器模块的严格要求。 因此，该项目如果成功，不仅可以降低整个通信系统的成本，还可以影响其他系统（如雷达和数字电路）的性能。 该项目将通过直接参与研究来教育研究生。此外，将支持旨在促进科学家和工程师多样性的现有外联方案。其中包括通过密歇根大学的大学研究机会计划（UROP）、NSF REU以及Maria Sara帕克计划让本科生参与。

Intellectual Merit: Oscillators are fundamental building blocks in communication systems, radars and many electronic circuits. Phase noise of the oscillators limits the performance of the RF and microwave transceivers. Phase noise of the local oscillator in a radio receiver down converts the adjacent channels into intermediate frequency thereby limiting receiver's immunity to nearby interference and jamming. Phase noise of local oscillator in a transmitter corrupts the information carried in the phase of the carrier. In a radio transmitter phase noise can also overwhelm the nearby weak channels. Since the number of wireless subscribers and thus, the amount of RF interference continue to increase, modern communication standards demand excellent phase noise performance from local oscillators in transceivers. Within this project several new circuit approaches for the design of integrated low phase noise microwave and millimeter wave oscillators are proposed. This project can also opens potential avenues for the design of other type circuits like high performance active filters.Broader Impacts: Any advancement in the design of simple and low phase noise oscillators will help to improve the overall communication systems performance and can relieve the stringent requirement on the other transceiver blocks. Hence, this project if successful not only can reduce the cost of the overall communication system but also can impact the performance of other systems like radars and digital circuits. This project will serve to educate graduate students through direct participation in the research. In addition, the existing outreach programs aimed at promoting diversity among scientists and engineers will be supported. They include the involvement of undergraduate students through the University Research Opportunity Program (UROP) at the University Of Michigan, the NSF REU as well as the Maria Sara Parker Programs.