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Base-tuned voltage controlled oscillators for monolithic microwave integrated circuit applications.

机译:适用于单片微波集成电路应用的基本调谐压控振荡器。

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摘要

Oscillators occupy a significant role in all communication systems and most electronic instruments. Among the characteristics of a voltage-controlled oscillator (VCO), phase noise is of paramount importance for the performance of a communication link in which the VCO operates. Driven by the exploding growth of the wireless and telecommunication markets, there appear tremendous interest and tough challenges in the development of low phase noise, low power, and cost effective VCOs for transceiver front-ends. An effort devoted to research and development of a series of base-tuned VCOs in monolithic microwave integrated circuit (MMIC) environment has been carried out, leading to the design and implementation of several distinct circuit configurations optimized for various system applications. A common feature of these units is the direct tuning of the base voltage (or gate voltage) of the core device for frequency control. The absence of varactor not only simplifies the circuit and the fabrication process, but also enhances the noise performance of the resulting VCO. Circuits implemented include a 19-GHz base-tuned GaAs heterojunction bipolar transistor (HBT) VCO, an extremely low phase noise dielectric resonator VCO, a state of the art Q-band AlGaN/GaN High Electronic Mobility Transistor (HEMT) VCO, a W-band direct oscillation VCO, and a highly efficient quad-push harmonic VCO. These chips validated the merits and generality of the base-tuned MMIC VCO approach for different circuit topologies. In addition, emerging technology based on novel high-Q resonators, wafer level packaging and multi-layered MMIC has been explored. Results indicated that base-tuned VCOs offer an attractive solution for signal sources in a variety of MMIC-based subsystems.
机译:振荡器在所有通信系统和大多数电子仪器中都扮演着重要角色。在压控振荡器(VCO)的特性中,相位噪声对于VCO在其中工作的通信链路的性能至关重要。在无线和电信市场爆炸式增长的推动下,对于收发器前端的低相位噪声,低功耗和经济高效的VCO的发展,出现了巨大的兴趣和严峻的挑战。已经进行了致力于在单片微波集成电路(MMIC)环境中一系列基本调谐VCO的研究和开发的工作,从而导致设计和实现了针对各种系统应用而优化的几种不同的电路配置。这些单元的共同特征是直接调谐核心器件的基本电压(或栅极电压)以进行频率控制。缺少变容二极管不仅简化了电路和制造过程,而且还增强了所得VCO的噪声性能。实现的电路包括19 GHz基本调谐GaAs异质结双极晶体管(HBT)VCO,极低相位噪声介电谐振器VCO,最先进的Q波段AlGaN / GaN高电子迁移率晶体管(HEMT)VCO,W带直接振荡VCO和高效的四推谐波VCO。这些芯片验证了针对不同电路拓扑的基本调谐MMIC VCO方法的优缺点和通用性。此外,已经探索了基于新型高Q谐振器,晶圆级封装和多层MMIC的新兴技术。结果表明,基本调谐的VCO为各种基于MMIC的子系统中的信号源提供了一种有吸引力的解决方案。

著录项

  • 作者

    Lan, Xing.;

  • 作者单位

    Illinois Institute of Technology.;

  • 授予单位 Illinois Institute of Technology.;
  • 学科 Engineering Electronics and Electrical.
  • 学位 Ph.D.
  • 年度 2006
  • 页码 115 p.
  • 总页数 115
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 无线电电子学、电信技术;
  • 关键词

  • 入库时间 2022-08-17 11:39:35

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