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

智能优点：振荡器是通信系统、雷达和许多电子电路的基本构件。振荡器的相位噪声限制了射频和微波收发机的性能。无线电接收器中本地振荡器的相位噪声将相邻频道向下转换为中频，从而限制了接收器对附近干扰和干扰的免疫力。发射机中本地振荡器的相位噪声会破坏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射频干扰量的持续增加，现代通信标准要求收发信机中的本地振荡器具有优异的相位噪声性能。在本项目中，提出了几种新的低相位噪声微波毫米波振荡器集成电路设计方法。该项目还可以为高性能有源滤波器等其他类型电路的设计开辟潜在的途径。广泛的影响：在简单和低相位噪声振荡器的设计上的任何进步都将有助于提高通信系统的整体性能，并可以缓解对其他收发模块的严格要求。因此，该项目如果成功，不仅可以降低整个通信系统的成本，而且还可以影响雷达和数字电路等其他系统的性能。该项目将通过直接参与研究来培养研究生。此外，旨在促进科学家和工程师多样性的现有外联方案将得到支持。这些措施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 Parker计划让本科生参与进来。

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.