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Conception et Réalisation de filtres RF passe-bas à structures périodiques et filtres Ultra Large Bande, semi-localisés en technologie planaire

机译：设计和实现具有周期结构和超宽带滤波器的低通RF滤波器，在平面技术中半局部化

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摘要

In recent years, extensive research and development efforts have been put into exploiting planar filters for their potential qualities of low cost, tiny weight and high degree of integration. The aim of the research work presented in this manuscript is the design and the realization of selective and miniaturized planar filters. A new topology of compact low-pass filter with periodic structures, constituted by a transmission line loaded by SMT capacitors, is proposed. A rigorous design method for the low-pass filter is also implemented. The measurements of the low-pass filters, realized near to 1 GHz in a CPW technology, in good agreement with simulations demonstrated interesting electrical proprieties of rejection, matching and spurious suppression. The validity of this topology is also investigated for higher frequencies with the realization of a low-pass filter in the X-band. Several capacitor's characterization approaches were also investigated. The implementation of capacitors in a low pass filter with periodic structure carried out constitutes the most precise way to characterize capacitors. A new topology of Ultra Wide Band band-pass filters, based on the combination of a high pass filter with short circuited stubs and a low pass filter with capacitively loaded lines, is proposed. The measurements of the prototype filters realized in a microstrip technology, in good agreement with simulations, show interesting proprieties of selectivity, miniaturization and spurious suppression.
机译：近年来，由于平面滤波器的低成本，重量轻和集成度高等潜在特性，人们已进行了大量的研究和开发工作。本论文中提出的研究工作的目的是选择性和小型化平面滤波器的设计和实现。提出了一种由SMT电容器加载的传输线构成的具有周期结构的紧凑型低通滤波器的新拓扑。还实现了针对低通滤波器的严格设计方法。在CPW技术中实现的接近1 GHz的低通滤波器的测量结果与仿真结果非常吻合，显示出有趣的电气特性，包括抑制，匹配和寄生抑制。通过在X波段实现低通滤波器，还研究了这种拓扑在更高频率下的有效性。还研究了几种电容器的表征方法。在具有周期性结构的低通滤波器中实现电容器构成了表征电容器的最精确方法。提出了一种新的超宽带带通滤波器拓扑结构，该拓扑结构是将带短截线的高通滤波器与具有容性负载线路的低通滤波器相结合。通过微带技术实现的原型滤波器的测量结果与仿真结果非常吻合，显示出有趣的选择性，小型化和杂散抑制特性。

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    Kaddour Darine;

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  • 年度 2007
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  • 原文格式 PDF
  • 正文语种 fr
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