此論文中將使用名為Balun 的磁芯設計一個平衡－不平衡(Balun) 1︰1阻抗比率的寬頻帶傳輸線轉換器，，以傳輸線繞線圈方式設計，由於此磁芯的包覆性佳，因此漏磁電感較小，因此能夠兼顧低頻段的特性，並且由於體積小因而能使傳輸線隨之亦短，如此也能兼顧所需的高頻段。而寬頻帶射頻傳輸線轉換器(TLTs)，在多種RF電路內，提供寬頻帶的阻抗轉變，通常把一個設備或者零部組件的阻抗和一阻電路或者系統的特性阻抗與相匹配。若負載或者次級電路和訊號源或者設備端的阻抗不匹配，則將無法達到最佳的傳輸功率，大部分的功率都因為阻抗不匹配而損耗掉，伴隨著插入損耗增加。而現階段隨著元件的使用頻率越高也越寬頻，因此寬頻帶的阻抗匹配將為之重要。

The Balun Core is used in this paper to design a balance to unbalance 1:1 wideband transmission line transformer, because magnetism this package of Balun core witch cover good, leak magnetism inductance to be relatively little, can give consideration to characteristic, low frequency of section, and because the volume is small can make transmission line short, also can give consideration to necessary high frequency too. And wide bandwidth transmission line transformers (TLTs), in many kinds of RF circuit, offer wide frequency band impedance transform, usually in equipment and characteristic impedance of system match. If load or the secondary circuit and impedance mismatch of the signal source or the equipment end, unable to reach the best power of transmission, most power loss because of impedance mismatch, and inserting loss increasing too. With higher frequency and wide bandwidth of utilization component at present, so wideband impedance match is importance.

目錄
圖表目錄
第一章　序論
1.1 概述
1.2 論文大綱
第二章　射頻轉換器與Balun Core
2.1 轉換器概述
2.2 理想射頻轉換器
2.3 非理想射頻轉換器
2.4 寬頻設計
2.5 Balun Core
第三章　寬頻帶傳輸線轉換器
3.1 寬頻轉換器介紹
3.2 基本架構
3.3 Guanella 與Ruthroff分析與應用
3.4 寬頻帶 1:1 平衡－非平衡轉換器設計
第四章　TRL ＆ TRM 校正法
4.1 網路分析儀
4.2 網路分析儀誤差項
4.3 TRL ＆ TRM 校正法
4.4 TRL ＆ TRM 校正器
第五章　模擬與量測比較
5.1 模擬
5.2 實際製作與量測
第五章　結論
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