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Broadband microwave lithographic three-dimensional components.

机译:宽带微波光刻的三维分量。

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摘要

The theme of this thesis is the design and characterization of rf front-end broadband components implemented in a new technology. Every radar and wireless communication system contains components such as amplifiers, antennas, filters, and dividing/combining networks. Active components usually occupy a small percentage of the total footprint, while the rest is occupied by passive microstrip or co-planar-waveguide components. For multi-functional systems that operate over different frequency ranges it is desirable to have a single broadband PA that replaces individual amplifiers for each band. Thus it is beneficial in terms of real estate and simplicity to utilize passive components that are both compact and broadband.In this thesis, conventional dispersive transmission lines are replaced with PolyStrata micro-coaxial lines that exhibit loss around 0.1 dB/cm at 40 GHz and isolation of >60 dB for neighboring lines sharing a common wall. The characteristic impedance of the lines is constant over a broad range of frequencies, as the TEM mode is dominant up to around 450 GHz. The design, implementation, and characterization of micro-coaxial broadband (2--20 GHz) passive components such as matching networks (impedance transformers) and divider/combiner networks are presented. Although these components were designed around 2--20 GHz, with a re-design they can operate at much higher frequencies due to the micro-coaxial lines' capabilities.An example of a system operating at higher frequencies is NASA/JPL's Mars Science Laboratory (MSL) landing radar system, which will operate at either W-band or G-band. Size and weight constraints motivate the transition to these frequency bands. The nature of the PolyStrata fabrication process lends itself to the fabrication of rectangular waveguides above 90 GHz, making it an option for the frequency-scanned antenna array on the MSL. Results are presented in which both traveling-wave slotted-waveguide and slotted-coaxial antenna arrays at 100 GHz and 150 GHz were investigated for the MSL landing system.
机译:本文的主题是在新技术中实现的射频前端宽带组件的设计和表征。每个雷达和无线通信系统均包含诸如放大器,天线,滤波器和分频/组合网络之类的组件。有源元件通常只占总面积的一小部分,其余的则由无源微带或共面波导元件占据。对于在不同频率范围上运行的多功能系统,希望有一个宽带PA来代替每个频带的单个放大器。因此,利用紧凑且宽带的无源元件在空间和简便性方面都是有益的。本文中,传统的分散式传输线被PolyStrata微同轴线所取代,该同轴线在40 GHz和200 GHz时的损耗约为0.1 dB / cm。共享公共墙的相邻线路的隔离度> 60 dB。线的特性阻抗在很宽的频率范围内是恒定的,因为TEM模式在大约450 GHz左右占主导地位。介绍了微同轴宽带(2--20 GHz)无源组件的设计,实现和特性,例如匹配网络(阻抗变压器)和分频器/组合器网络。尽管这些组件的设计频率约为2--20 GHz,但由于重新设计了微型同轴电缆的功能,它们可以在更高的频率下工作.NASA / JPL的火星科学实验室就是一个工作在更高频率下的系统示例(MSL)着陆雷达系统,它将在W波段或G波段运行。尺寸和重量的限制促使向这些频带的过渡。 PolyStrata制造工艺的性质使其可以制造90 GHz以上的矩形波导,这使其成为MSL上频率扫描天线阵列的一种选择。结果表明,针对MSL着陆系统,研究了100 GHz和150 GHz的行波缝隙波导和缝隙同轴天线阵列。

著录项

  • 作者

    Ehsan, Negar.;

  • 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 136 p.
  • 总页数 136
  • 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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