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Broadband microwave integrated circuits for voltage standard applications.

机译:用于电压标准应用的宽带微波集成电路。

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摘要

This thesis addresses integrated circuit component, packaging, and microwave design for both AC and DC Josephson voltage standard (JVS) systems. The components developed in this work combine techniques from both the distributed and lumped-element microwave design in the frequency range 0--40 GHz. The National Institute of Standards and Technology (NIST) JVS systems rely on 10 000 to 300 000 micro-fabricated Josephson junctions (JJs) in superconducting niobium on a silicon substrate at 4 K. This work focuses on both monolithically integrating specialized microwave devices with this JJ fabrication technology as well as enhancing the microwave performance of other system components.Improved microwave packages for JVS circuits developed in this work have increased operating margins, reliability, and longevity of both AC and DC JVS systems. Monolithically-integrated, broadband, lumped-element dividers with bandwidth exceeding 15--22 GHz were designed and fabricated to uniformly distribute power to arrays of Josephson junctions, an enabling technology for the NIST 10V programmable JVS system. Monolithic-microwave-integrated-circuit (MMIC) bias-tees, corners, JJ arrays, and terminations have all been redesigned in this work to improve JVS system operations. To deliver the microwave excitation to the JJs a broadband, MMIC, distributed amplifier was designed and tested with 3--18 GHz bandwidth. These increases in the bandwidth and microwave power on-chip have paved the way for enhanced current and future NIST JVS systems. iii
机译:本文讨论了交流和直流约瑟夫逊电压标准(JVS)系统的集成电路组件,封装和微波设计。这项工作中开发的组件结合了0--40 GHz频率范围内的分布式和集总微波设计中的技术。美国国家标准技术研究院(NIST)的JVS系统依靠10,000至300,000微米的约瑟夫森结(JJs)在4 K的硅衬底上超导铌。这项工作着重于将专用微波器件与此集成在一起JJ制造技术以及增强其他系统组件的微波性能。这项工作中改进的JVS电路微波封装提高了交流和直流JVS系统的工作裕度,可靠性和使用寿命。设计和制造带宽超过15--22 GHz的单片集成宽带集总元件分频器,以将功率均匀分配到约瑟夫森结的阵列,这是NIST 10V可编程JVS系统的使能技术。这项工作重新设计了单片微波集成电路(MMIC)偏置三通,转角,JJ阵列和端接,以改善JVS系统的运行。为了向JJ提供微波激励,设计了宽带MMIC分布式放大器,并在3--18 GHz带宽下进行了测试。带宽和片上微波功率的这些增加为增强当前和未来的NIST JVS系统铺平了道路。 iii

著录项

  • 作者

    Elsbury, Michael Matthew.;

  • 作者单位

    University of Colorado at Boulder.;

  • 授予单位 University of Colorado at Boulder.;
  • 学科 Engineering, Electronics and Electrical.
  • 学位 Ph.D.
  • 年度 2010
  • 页码 159 p.
  • 总页数 159
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 ;
  • 原文服务方 国家工程技术数字图书馆
  • 关键词

    ;

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