教授：陳文山班級：碩研電子一甲姓名：林晏羽學號： M9930228

This paper appears in:Antennas and Propagation,IEEE Transactions on. Issue Date :April 2010. Volume :58 ,Issue:4.On page(s):1022 -1030. INSPEC Accession Number:11208240. Digital Object Identifier :10.1109/TAP.2010.2041155. Date of Publication :25一月 2010. Date of Current Version :05四月 2010. Sponsored by :IEEE Antennas and Propagation Society.

前言 在本文中，高增益且小型堆疊多層八木定向天線，提出並證明在 5.8 GHz 對 LPS的應用。這種結構使得使用垂直堆疊的八木像寄生元素，讓控制器很容易獲得一個模擬增益 12dB。兩種不同的天線配置，提出一個基於幾何單偶極子極化，另一個在一個圓形貼片實現雙兩極分化。這些天線的特點就各種幾何參數進行了研究，以獲得所需的性能。

This paper appears in:Antennas and Propagation,IEEE Transactions on. Issue Date :April 2010. Volume :58 ,Issue:4.On page(s):1022 -1030. INSPEC Accession Number:11208240. Digital Object Identifier :10.1109/TAP.2010.2041155. Date of Publication :25一月 2010. Date of Current Version :05四月 2010. Sponsored by :IEEE Antennas and Propagation Society.

八木天線由來結構優點應用

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本地定位系統（ LPS）是一個無線電系統，用於搜索和實時跟踪對象的利益在有限的空間範圍。這是一個典型的應用無線傳感器網絡。與 LPS，移動對象可以是局部的，也可以收集有關其立場，在精確的時間瞬間。因此，緊湊尺寸，重量輕，低成本的天線需要 LPS的設計和實施。

This paper appears in:Antennas and Propagation,IEEE Transactions on. Issue Date :April 2010. Volume :58 ,Issue:4.On page(s):1022 -1030. INSPEC Accession Number:11208240. Digital Object Identifier :10.1109/TAP.2010.2041155. Date of Publication :25一月 2010. Date of Current Version :05四月 2010. Sponsored by :IEEE Antennas and Propagation Society.

為了解決這個問題的規模和佔用範圍內的平面結構，兩種新型高增益結構緊湊基礎上，八木宇田的概念第一次提出了在此工作。這些結構是建於一個由多層堆疊加在一起的反射器，驅動程序，及控制器。相對於以上描述的同面八木定向天線，這種設計能夠提供一個數字的優勢。

• 一、用第三維（垂直方向）• 二、高介電常數基板• 三、設計雙偏振基礎• 四、多天線毫米波和赫茲

• 1.八木微帶天線陣列的發展• 2.八木天線配置• 3.該天線的設計

This paper appears in:Antennas and Propagation,IEEE Transactions on. Issue Date :April 2010. Volume :58 ,Issue:4.On page(s):1022 -1030. INSPEC Accession Number:11208240. Digital Object Identifier :10.1109/TAP.2010.2041155. Date of Publication :25一月 2010. Date of Current Version :05四月 2010. Sponsored by :IEEE Antennas and Propagation Society.

證明提出的概念和設計特性

圖 1.擬議的結構設計 1 （偶極堆積八木天線）

圖 2.第二層的設計 1

A.八木天線偶極堆積（設計＃ 1 ）

This paper appears in:Antennas and Propagation,IEEE Transactions on. Issue Date :April 2010. Volume :58 ,Issue:4.On page(s):1022 -1030. INSPEC Accession Number:11208240. Digital Object Identifier :10.1109/TAP.2010.2041155. Date of Publication :25一月 2010. Date of Current Version :05四月 2010. Sponsored by :IEEE Antennas and Propagation Society.

圖 .3 擬議的結構設計 2 （雙圓極化圓型貼片）

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天線設計的思考1.偶極子八木天線2.偶極子天線和平衡不平衡變壓器，以及共 面帶共面波導饋電偶極子和帶狀線平衡不平衡變換器

3.基板上製作控制器元素

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4.天線增益等特點5.八木天線偶極堆積模擬6.反射面的傳動器被添加到元素的大小和距離的反射進行了優化。

圖 4.增益變化與地平面尺寸為不同的驅動程序到反射器間距

圖 5.增益變化為不同的長度與控制器到控制器間距

This paper appears in:Antennas and Propagation,IEEE Transactions on. Issue Date :April 2010. Volume :58 ,Issue:4.On page(s):1022 -1030. INSPEC Accession Number:11208240. Digital Object Identifier :10.1109/TAP.2010.2041155. Date of Publication :25一月 2010. Date of Current Version :05四月 2010. Sponsored by :IEEE Antennas and Propagation Society.

7.三個控制器被添加到偶極子和反射器

圖 6.增益變化為一個函數的控制器長度：固定八木天線三和四個相同的控制器 ; 堆積八木天線控制器及高介電常數的示意圖

This paper appears in:Antennas and Propagation,IEEE Transactions on. Issue Date :April 2010. Volume :58 ,Issue:4.On page(s):1022 -1030. INSPEC Accession Number:11208240. Digital Object Identifier :10.1109/TAP.2010.2041155. Date of Publication :25一月 2010. Date of Current Version :05四月 2010. Sponsored by :IEEE Antennas and Propagation Society.

8.增益增強是由以下方程組與 B 作為較低層的厚度和 , 是它的相對介電常數和磁導率。

9. 和 是相對介電常數和磁導率的上層。 折射率是 。 是指頻率偏差參數。在頻率為中心頻率附近的 。

This paper appears in:Antennas and Propagation,IEEE Transactions on. Issue Date :April 2010. Volume :58 ,Issue:4.On page(s):1022 -1030. INSPEC Accession Number:11208240. Digital Object Identifier :10.1109/TAP.2010.2041155. Date of Publication :25一月 2010. Date of Current Version :05四月 2010. Sponsored by :IEEE Antennas and Propagation Society.

(4)

(5)

(3)

(2)

This paper appears in:Antennas and Propagation,IEEE Transactions on. Issue Date :April 2010. Volume :58 ,Issue:4.On page(s):1022 -1030. INSPEC Accession Number:11208240. Digital Object Identifier :10.1109/TAP.2010.2041155. Date of Publication :25一月 2010. Date of Current Version :05四月 2010. Sponsored by :IEEE Antennas and Propagation Society.

設計 1.堆疊八木天線的偶極 設計 2.堆疊八木天線 對於修補程序

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B.圓形貼片堆疊八木天線雙極化（設計＃ 2 ） 顯示了元素的寬度影響的帶寬設計的＃ 1 。這種設計之間的帶寬可以達到 6 ％和 27％，至 5.8千兆赫。

圖 7 .S11片段作為函數的元素的寬度 圖 8.增益與地平面尺寸

This paper appears in:Antennas and Propagation,IEEE Transactions on. Issue Date :April 2010. Volume :58 ,Issue:4.On page(s):1022 -1030. INSPEC Accession Number:11208240. Digital Object Identifier :10.1109/TAP.2010.2041155. Date of Publication :25一月 2010. Date of Current Version :05四月 2010. Sponsored by :IEEE Antennas and Propagation Society.

圖 9.增益與寄生元件的數量 圖 10.增益變化與控制器長度不同的控制器到控制器間距

需求大規模的地平面是有關一個限制的重疊偶極八木天線。

This paper appears in:Antennas and Propagation,IEEE Transactions on. Issue Date :April 2010. Volume :58 ,Issue:4.On page(s):1022 -1030. INSPEC Accession Number:11208240. Digital Object Identifier :10.1109/TAP.2010.2041155. Date of Publication :25一月 2010. Date of Current Version :05四月 2010. Sponsored by :IEEE Antennas and Propagation Society.

圖 11.直徑變化的影響對增益和隔離兩偏振

層的大小和接地層是 。由於有效介電常數基板，低於先前的配置，間距之間的控制器已相應增加。因此，在同一基板已用於整個天線，以簡化製造過程。垂直間距控制器已接近接近 14.6 mm(0.28λ)，而在這個設計總高度為 60 mm的配置。

This paper appears in:Antennas and Propagation,IEEE Transactions on. Issue Date :April 2010. Volume :58 ,Issue:4.On page(s):1022 -1030. INSPEC Accession Number:11208240. Digital Object Identifier :10.1109/TAP.2010.2041155. Date of Publication :25一月 2010. Date of Current Version :05四月 2010. Sponsored by :IEEE Antennas and Propagation Society.

結果與討論

圖 12.照片第一個設計例子偶極型八木天線的結構。

圖 13.照片第二個設計例子圓型貼片的八木天線的結構。

This paper appears in:Antennas and Propagation,IEEE Transactions on. Issue Date :April 2010. Volume :58 ,Issue:4.On page(s):1022 -1030. INSPEC Accession Number:11208240. Digital Object Identifier :10.1109/TAP.2010.2041155. Date of Publication :25一月 2010. Date of Current Version :05四月 2010. Sponsored by :IEEE Antennas and Propagation Society.

第一個設計實例

1.傳輸特性2.輻射模式3.天線增益

圖 14. S參數特性的原型天線＃ 1

圖 15.顯示天線輻射模式在 5.8 GHz＃ 1

設計的多層堆疊的八木天線比金屬喇叭天線是更緊湊。

This paper appears in:Antennas and Propagation,IEEE Transactions on. Issue Date :April 2010. Volume :58 ,Issue:4.On page(s):1022 -1030. INSPEC Accession Number:11208240. Digital Object Identifier :10.1109/TAP.2010.2041155. Date of Publication :25一月 2010. Date of Current Version :05四月 2010. Sponsored by :IEEE Antennas and Propagation Society.

第二個設計實例

1.傳輸特性2.輻射模式3.天線增益

圖 16.S-參數特性的原型天線＃ 2 。圖 17.顯示天線輻射圖在 5.8 GHz＃ 2為了實現可比性增益， DeJean [25]提出了一種雙向八木天線和四邊形八木天線其中包括七片平面元素。地平面的尺寸 比 證明我們天線的大小。

This paper appears in:Antennas and Propagation,IEEE Transactions on. Issue Date :April 2010. Volume :58 ,Issue:4.On page(s):1022 -1030. INSPEC Accession Number:11208240. Digital Object Identifier :10.1109/TAP.2010.2041155. Date of Publication :25一月 2010. Date of Current Version :05四月 2010. Sponsored by :IEEE Antennas and Propagation Society.

結論這項工作表明，所提出的概念提供輕重量，低成本，高性能和全集成解決方案的本地定位平台，無線傳感器系統和雷達傳感器的應用。可以預見，這些新天線將提供一個非常有吸引力的設計方案，適用範圍廣微波和毫米波系統應用。

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