微波共振腔中號角天線的輻射場形之研究

Study of Radiation Pattern of A Horn Antenna Used in Microeave Applicator

吳明宏(Ming-Hung Wu)

指導教授 ： 朱國瑞

國立臺灣大學/理學院/物理研究所/碩士(2014年)

https://doi.org/10.6342/NTU.2014.01188

摘要

本篇論文中的系統架設可分為兩大部分：linear-to-circular polarization converter，以及conical horn antenna。前者主要工作是將波源連接出的線極化波轉換成圓極化波，再將轉換成的導波導入號角天線；後者功用將前者導入的微波放射到微波暗室中照設樣品物，此天線的高指向性特色是我們選擇的依據。內容中會提到模擬以及實驗結果作比較，最後放置計畫的初步成果來觀察研究之可行性。

關鍵字

波導轉換器 ； 號角天線 ； 指向性 ； 增益

並列摘要

In this thesis, there are two components will be mainly discussed in the system: linearto-circular polarization converter and conical horn antenna. The former matches the rectangular waveguide (linear polarization) which from microwave applicator to circular waveuide (circular polarization) which connected to horn antenna. The latter guides the circularly polarized wave from the former to an anechoic chamber to irradiate the sample , the basis of the horn antenna is high degree of directivity. In the content, we will examine results of experiment and simulation , and do conclusion.

並列關鍵字

Converter ； Horn antenna ； Directivity ； Gain

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