CAREER: Commutated-LC Circuits for Next-Generation RF-Domain Signal Processing
职业:用于下一代射频域信号处理的换向 LC 电路
基本信息
- 批准号:2046104
- 负责人:
- 金额:$ 50万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2021
- 资助国家:美国
- 起止时间:2021-02-15 至 2026-01-31
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
Wireless communications and sensing have become ubiquitous. With the proliferation of wireless technologies, however, the electromagnetic (EM) spectrum has become increasingly congested. New concepts and technologies, such as artificial intelligence assisted collaborative radio networks, simultaneous-transmission-and-reception-based wireless systems, and large antenna arrays, have emerged to efficiently utilize the spectrum, which necessitate signal processing in the radio frequency (RF) domain. Linear periodically time-variant (LPTV) switched-capacitor circuits have been studied extensively in the past decade as they enable high-quality, widely tunable, and non-reciprocal RF signal processing components on chip. However, existing LPTV circuits are fundamentally limited to low-order, short-delay, and sub-6 GHz operations. This project, by introducing new commutated-inductor-capacitor (commutated-LC) circuits, aims to tackle the fundamental limits of existing switched-capacitor circuits, which has the potential to substantially reduce the cost and size of next-generation wireless systems, thereby benefiting society through increasing access. The PI will develop new courses at the University of Illinois at Urbana Champaign (UIUC) that will integrate the research outcomes of this project. Introductory high-school-level curriculum development in collaboration with established UIUC outreach programs is also planned. The PI established an institute of electrical and electronics engineers (IEEE) Solid-State-Circuits chapter at UIUC and will organize seminars, short courses, and other events in collaboration with other faculty and students.In this project, the introduction of inductors or magnetic fields to commutated circuits provides new degrees of freedom to existing LPTV switched-capacitor circuits, opening new design spaces at both architecture and component levels. The intellectual merit of this project is in the advancement of knowledge and understanding related to (1) theoretical frameworks of high-order, long-delay commutated-LC circuits operating at beyond 6-GHz RF, (2) practical design considerations with silicon-based implementations of the commutated-LC circuits, and (3) development of next-generation wireless systems with unique RF-domain signal processing capabilities enabled by the commutated-LC circuits. Specifically, this project will investigate the commutated-LC circuits in the mixing region for reconfigurable filtering front-ends that cover a wider frequency tuning range, operate at a higher RF, and provide steeper filter roll-offs. It will also study the commutated-LC circuits when they are used as delay elements, targeting on breaking the limit of delay-frequency product in existing switched-capacitor delays. Leveraging this new delay component, this project will develop next-generation simultaneous-transmission-and-reception systems and many-element antenna arrays. Finally, this project will study the impact of local oscillator circuitry on commutated-LC circuits in terms of operation frequency, noise, and power consumption. New high-frequency oscillators with low phase noise and phase noise cancellation techniques will be developed.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
无线通信和传感已经变得无处不在。然而,随着无线技术的发展,电磁(EM)频谱变得越来越拥挤。新的概念和技术,如人工智能辅助的协作无线电网络,基于错误传输和接收的无线系统和大型天线阵列,已经出现,以有效地利用频谱,这需要在射频(RF)域中进行信号处理。线性周期时变(LPTV)开关电容电路在过去的十年中得到了广泛的研究,因为它们能够在芯片上实现高质量、宽调谐和非互易RF信号处理组件。然而,现有的LPTV电路从根本上限于低阶、短延迟和低于6 GHz的操作。该项目通过引入新的整流电感电容(整流LC)电路,旨在解决现有开关电容电路的基本限制,这有可能大幅降低下一代无线系统的成本和尺寸,从而通过增加接入造福社会。PI将在伊利诺伊大学厄巴纳尚潘分校(UIUC)开发新课程,该课程将整合该项目的研究成果。还计划与既定的UIUC外联方案合作开发高中一级的入门课程。PI在UIUC成立了电气和电子工程师协会(IEEE)固态电路分会,并将与其他教师和学生合作组织研讨会,短期课程和其他活动。在这个项目中,将电感器或磁场引入换向电路为现有的LPTV开关电容电路提供了新的自由度,在架构和组件层面开辟了新的设计空间。该项目的智力价值在于提高与以下方面相关的知识和理解:(1)在6 GHz RF以上工作的高阶长延迟换向LC电路的理论框架,(2)换向LC电路的硅基实现的实际设计考虑,以及(3)具有由换向LC电路实现的独特RF域信号处理能力的下一代无线系统的开发。具体而言,该项目将研究混频区的换向LC电路,用于可重构滤波前端,覆盖更宽的频率调谐范围,在更高的RF下工作,并提供更陡的滤波器滚降。本文还将研究换相LC电路作为延迟元件的应用,旨在突破现有开关电容延迟器的延迟频率积限制。利用这一新的延迟组件,该项目将开发下一代非线性发射和接收系统和多单元天线阵列。最后,本计画将研究本振电路在工作频率、杂讯与功率消耗等方面对LC电路的影响。该奖项反映了NSF的法定使命,并通过使用基金会的知识价值和更广泛的影响审查标准进行评估,被认为值得支持。
项目成果
期刊论文数量(0)
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Pavan Kumar Hanumolu其他文献
A multiplexer-based digital passive linear counter (PLINCO)
- DOI:
10.1007/s10470-012-9862-3 - 发表时间:
2012-04-27 - 期刊:
- 影响因子:1.400
- 作者:
Skyler Weaver;Benjamin Hershberg;Pavan Kumar Hanumolu;Un-Ku Moon - 通讯作者:
Un-Ku Moon
Pavan Kumar Hanumolu的其他文献
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{{ truncateString('Pavan Kumar Hanumolu', 18)}}的其他基金
CAREER:Digitally-Assisted Dynamic Power Management Techniques for Energy-Efficient Communication Networks
职业:节能通信网络的数字辅助动态电源管理技术
- 批准号:
1405176 - 财政年份:2013
- 资助金额:
$ 50万 - 项目类别:
Continuing Grant
CAREER:Digitally-Assisted Dynamic Power Management Techniques for Energy-Efficient Communication Networks
职业:节能通信网络的数字辅助动态电源管理技术
- 批准号:
0954969 - 财政年份:2010
- 资助金额:
$ 50万 - 项目类别:
Continuing Grant
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