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Analysis and design of reconfigurable and broadband microstrip antenna.

机译：可重构宽带微带天线的分析与设计。

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摘要

This thesis provides several designs of broadband microstrip antennas for the use in WLAN applications. It also highlights the novel reconfigurable microstrip antenna design. The main objective of this thesis is to design a novel microstrip antenna that is broadband, circularly polarized, multiband, reconfigurable and easy-to-fabricate. The thesis, in the first stage, presents a review of various different options available when designing and manufacturing wideband microstrip antennas. The review includes basic theory of microstrip patch antennas, matching techniques and broadbanding techniques. The second stage concentrates on the development of a couple of working prototype antenna designs and finally presents the design of a reconfigurable antenna that can perform over several frequency bands. The shapes of broadband patch antennas used are rectangular, circular and triangular. The multiple resonance technique is used in the design of the broadband antennas. Numerical and measured results are presented and discussed. The proposed patch antennas give measured bandwidth up to 28.5%. The reconfigurable antenna on the other hand is designed to possess frequency and polarization reconfigurability, and can operate in six different frequency bands. In addition to the bandwidth advantage, the proposed configuration offers easy reconfigurability with the ability to exclude switches in the combination part of the feed network. The important aspect of this design is that it provides a high size reduction for all the operating frequencies compared to conventional rectangular patches. Besides compactness all proposed antennas have gain better than 7dB. The proposed antennas are found to be suitable for WLAN standards.
机译：本文提供了几种用于WLAN应用的宽带微带天线设计。它还强调了新颖的可重构微带天线设计。本文的主要目的是设计一种新颖的宽带，圆极化，多频带，可重构且易于制造的微带天线。论文的第一阶段介绍了设计和制造宽带微带天线时可用的各种不同选项。综述包括微带贴片天线的基本理论，匹配技术和宽带技术。第二阶段着重于几个可行的原型天线设计的开发，最后提出了可在几个频带上执行的可重构天线的设计。所使用的宽带贴片天线的形状为矩形，圆形和三角形。多重谐振技术用于宽带天线的设计中。给出了数值和测量结果并进行了讨论。建议的贴片天线可提供高达28.5％的测量带宽。另一方面，可重构天线被设计为具有频率和极化可重构性，并且可以在六个不同的频带中操作。除了带宽优势外，建议的配置还提供了轻松的可重新配置性，并且能够排除馈送网络组合部分中的交换机。这种设计的重要方面是，与传统的矩形贴片相比，它在所有工作频率上都提供了较大的尺寸减小。除了紧凑性，所有建议的天线都具有优于7dB的增益。发现建议的天线适合WLAN标准。

著录项

  • 作者

    Qazafi, Muhammad.;

  • 作者单位

    Concordia University (Canada).;

  • 授予单位 Concordia University (Canada).;
  • 学科 Engineering Electronics and Electrical.
  • 学位 M.A.Sc.
  • 年度 2007
  • 页码 95 p.
  • 总页数 95
  • 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

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