臺灣博碩士論文加值系統

高頻EMC量測時大多使用喇叭天線，不同形狀的喇叭天線可用來控制其增益、輻射場形和阻抗特性。常見的號角天線有金字塔型、扇形(又可分E–plane和H–plane二種) ，圓錐形、漏斗型等，而圓形四脊背喇叭天線當其 模態時，能夠操作在任何一種極化，所以在設計時，E–plane和H–plane各有一個Feed，量測時不需旋轉四脊背喇叭天線，可以節省量測時所浪費的時間。
本論文主要在討論如何由錐形喇叭天線﹙pyramidal horn antenna﹚到雙脊背喇叭天線﹙double–ridged horn antenna﹚之基本觀念，進而設計與製作四脊背喇叭天線﹙quad–ridged horn antenna﹚，並藉由特性分析與增益測量以了解其性能，並將喇叭天線增益的量測數據，與模擬軟體HFSS數據作為比較，以進一步研究相關設計參數對天線特性的影響。

High-frequency EMC amount mostly use horn antenna, a shape of radiation and impedance characteristic that the horn antenna of different forms can use an d control it and gain while measuring. The common horn antenna has Pyramid type, fan-shaped, taper shape, funnel type, etc. And quad–ridged horn antenna at mode, can operate any kind of polarization again, so in the design, E-plane and H-plane each have one feed, it does not need to rotate for quad–ridged horn antenna when measuring, can reduce time effectively.
This thesis is discussing mainly how to design and make pyramidal horn antenna, double–ridged horn antenna, quad– ridged horn antenna, and analysis with the characteristic and gains measurement in order to find out about its performance , and the gain values for the horn antenna measures the data, compare with simulate the software HFSS data, by studying the relevant impact on characteristic of the aerial of design parameter further.

目錄

封面內頁
簽名頁
授權書 ．．．．．．．．．．．．．．．．．．．．．．．．iii
中文摘要．．．．．．．．．．．．．．．．．．．．．．．．iv
英文摘要 ．．．．．．．．．．．．．．．．．．．．．．．．v
誌謝．．．．．．．．．．．．．．．．．．．．．．．．．．vi
目錄 ．．．．．．．．．．．．．．．．．．．．．．．．．vii
圖目錄．．．．．．．．．．．．．．．．．．．．．．．．．viii

第一章 序論
1.1前言．．．．．．．．．．．．．．．．．．．．．1
1.2研究動機及方法．．．．．．．．．．．．．．．．1
1.3論文架構．．．．．．．．．．．．．．．．．．．2
第二章 Horn Antenna
2.1 Waveguide and horn基礎原理 ．．．．．．．．．4
2.2設計概念 ．．．．．．．．．．．．．．．．．．29
2.3 測試環境的架設 ．．．．．．．．．．．．．．．30
2.4模擬結果與分析 ．．．．．．．．．．．．．．．32
第三章 Double-ridged horn antenna
3.1 Double-ridged horn基礎原理．．．．．．．．．37
3.2設計概念 ．．．．．．．．．．．．．．．．．．42
3.3測試環境的架設 ．．．．．．．．．．．．．．．43
3.4實驗結果與分析 ．．．．．．．．．．．．．．．44
第四章 Quad ridge horn antenna
4.1基礎原理 ．．．．．．．．．．．．．．．．．．50
4.2設計概念 ．．．．．．．．．．．．．．．．．．56
4.3測試環境的架設 ．．．．．．．．．．．．．．．58
4.4模擬結果與分析 ．．．．．．．．．．．．．．．59
第五章 結論 ．．．．．．．．．．．．．．．．．．．．．．65
參考文獻．．．．．．．．．．．．．．．．．．．．．．．．66

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