本論文為序列微帶陣列天線的研究。第二章中以寬頻的圓
極化天線為元件設計序列微帶陣列天線，分析此結構設計
的各種參數，對序列微帶陣列天線的各種性能做探討，同
時提出新的饋路網路架構使此種序列微帶陣列天線的設計
更易達成較佳的圓極化性能。第三章中設計以具有相差
180度的雙饋入圓極化天線為元件的1×2序列微帶陣列天
線，這種1×2序列陣列天線設計能較第二章所述的2×2
序列陣列天線更易達成良好的3 dB軸比頻寬、近似理想的
圓極化軸比與輻射場型。最後在第四章中，利用前述章節
中設計序列微帶陣列天線的概念與經驗，分別利用線性極
化波微帶天線及圓極化波微帶天線兩種不同性質的元件，
配合兩種不同的饋入網路結構，設計可操作於雙頻段的寬
頻圓極化天線。

no

文字目錄 頁次
文字目錄………………………………………………………………………………i
圖型目錄………………………………………………………………………………ii
表格目錄………………………………………………………………………………v


第一章 序論 ( Introduction ) …………………………………………………1
1.1 簡介…………………………………………………………………………1
1.2 文獻討論與回顧……………………………………………………………2
1.3 論文組織……………………………………………………………………4

第二章 以寬頻圓極化天線為元件之序列陣列天線設計 ( Design of sequentially
rotated array composed of wideband circularly polarized antenna
elements )…………………………………………………………………6
2.1 序列陣列天線原理與設計說明……………………………………………6
2.2 實驗結果與討論……………………………………………………………9
2.2.1 不同陣列結構的序列陣列天線設計………………………………………9
2.2.2 不同陣列饋入網路的序列陣列天線設計…………………………………21

第三章 以具有相差180度的雙饋入圓極化天線為元件之1×2序列陣列天線(Design
of 1×2 sequentially rotated array composed of circularly
polarized antennas fed by two feeds with a 180o-phase difference )
………………………………………………………………………………34
3.1 陣列天線設計說明…………………………………………………………34
3.2 實驗結果與討論……………………………………………………………37

第四章 雙寬頻圓極化序列陣列天線之設計 ( Dual-band circularly polarized
sequentially rotated array designs )………………………………48
4.1 陣列天線設計說明…………………………………………………………48
4.2 實驗結果與討論……………………………………………………………54
4.2.1 以線性雙頻天線元件組成之雙頻圓極化序列陣列天線設計……………54
4.2.2 以圓極化天線元件組成之雙頻圓極化序列陣列天線設計………………62

第五章 結論 ( Conclusions )……………………………………………………70

參考文獻 ( References ) …………………………………………………………71

圖形目錄 頁次
圖2.1 序列陣列天線基本結構圖…………………………………………………8
圖2.2 植入電阻的寬頻圓極化波微帶天線結構圖………………………………13
圖2.3 以寬頻圓極化波天線為元件的1×2序列陣列天線結構圖………………14
圖2.4 以寬頻圓極化波天線為元件的2×2序列陣列天線結構圖………………15
圖2.5 以寬頻圓極化波天線為元件的不同序列陣列結構的反射損失圖………16
圖2.6 以寬頻圓極化波天線為元件的不同序列陣列結構的圓極化軸比圖……17
圖2.7 以寬頻圓極化波天線為元件的不同序列陣列結構最大接收場強圖……18
圖2.8 以寬頻圓極化波天線為元件的1×2 序列陣列天線在頻率為2488MHz的
輻射場型圖…………………………………………………………………19
圖2.9 以寬頻圓極化波天線為元件的2×2 序列陣列天線在頻率為2450MHz的
輻射場型圖…………………………………………………………………20
圖2.10 以寬頻圓極化波天線為元件，間距0.6 l0，具高隔絕度饋入網路的
2×2序列陣列天線結構圖…………………………………………………25
圖2.11 以窄頻圓極化波天線為元件，間距0.6 l0，具高隔絕度饋入網路的
2×2序列陣列天線結構圖…………………………………………………26
圖2.12 以不同天線為陣列元件組成的序列陣列天線反射損失圖………………27
圖2.13 寬頻圓極化波天線元件及其2×2序列陣列天線圓極化軸比圖…………28
圖2.14 單饋入截角式圓極化波天線元件及其2×2序列陣列天線圓極化軸比
圖……………………………………………………………………………29
圖2.15 寬頻圓極化波天線元件及其2×2序列陣列天線最大接收場強圖………30
圖2.16 單饋入截角式圓極化波天線元件及其2×2序列陣列天線最大接收場
強圖…………………………………………………………………………31
圖2.17 以寬頻圓極化波天線為元件，間距0.6 l0，具高隔絕度饋入網路的
2×2序列陣列天線在頻率為2408 MHz的輻射場型圖……………………32
圖2.18 以窄頻圓極化波天線為元件，間距0.6 l0，具高隔絕度饋入網路的
2×2序列陣列天線在頻率為2425 MHz的輻射場型圖……………………33

圖3.1 以具有180度相差的雙饋入圓極化天線為元件之1×2序列陣列天線
結構圖………………………………………………………………………36
圖3.2 間距0.4 l0的1×2序列陣列天線結構反射損失圖………………………40
圖3.3 間距0.4 l0的1×2序列陣列天線結構圓極化軸比圖……………………41
圖3.4 間距0.4 l0的1×2序列陣列天線結構最大接收場強圖…………………42
圖3.5 間距0.4 l0的1×2序列陣列天線結構在頻率為2400 MHz的天線輻射
場型圖………………………………………………………………………43
圖3.6 一般截角式單饋入圓極化波天線結構在頻率為2370 MHz的天線輻射
場型圖………………………………………………………………………44
圖3.7 間距0.6 l0的1×2序列陣列天線結構圓極化軸比圖……………………45
圖3.8 間距0.6 l0的1×2序列陣列天線結構最大接收場強圖…………………46
圖3.9 間距0.6 l0的1×2序列陣列天線結構在頻率為2400 MHz的天線輻射
場型圖………………………………………………………………………47

圖4.1 線性雙頻天線結構圖………………………………………………………51
圖4.2 扇形圓極化波天線結構圖…………………………………………………52
圖4.3 以圓極化波天線為元件的1×2序列陣列天線結構圖……………………53
圖4.4 以線性雙頻為元件，間距0.45 l0的2×2序列陣列天線結構圖 ………56
圖4.5 以線性極化天線為元件的雙頻段寬頻圓極化序列陣列天線結構的反
射損失圖……………………………………………………………………57
圖4.6 以線性極化天線為元件的雙頻段寬頻圓極化序列陣列天線結構的圓
極化軸比圖…………………………………………………………………58

圖4.7 以線性極化天線為元件的雙頻段寬頻圓極化序列陣列天線結構的最
大接收場強圖………………………………………………………………59
圖4.8 以線性極化天線為元件的雙頻段寬頻圓極化序列陣列天線結構在頻
率為1756 MHz的天線輻射場型圖…………………………………………60
圖4.9 以線性極化天線為元件的雙頻段寬頻圓極化序列陣列天線結構在頻
率為2360 MHz的天線輻射場型圖…………………………………………61
圖4.10 以圓極化波天線為元件的雙寬頻2×2序列陣列天線結構圖……………64
圖4.11 以圓極化波天線為元件的雙寬頻圓極化波序列陣列天線結構的反射
損失圖………………………………………………………………………65
圖4.12 以圓極化波天線為元件的雙寬頻圓極化波序列陣列天線結構的圓極
化軸比圖……………………………………………………………………66
圖4.13 以圓極化波天線為元件的雙寬頻圓極化波序列陣列天線結構的最大
接收場強圖…………………………………………………………………67
圖4.14 以圓極化波天線為元件的雙寬頻圓極化波序列陣列天線結構在頻率
為2100 MHz的天線輻射場型圖……………………………………………68
圖4.15 以圓極化波天線為元件的雙寬頻圓極化波序列陣列天線結構在頻率
為2400 MHz的天線輻射場型圖……………………………………………69


表格目錄
頁次
表2.1 不同結構對序列陣列天線特性之比較……………………………………12
表2.2 高隔絕度饋入網路對以寬頻圓極化天線為元件的序列陣列天線特性
之影響………………………………………………………………………23
表2.3 高隔絕度饋入網路且以單饋入截角式圓極化波元件組成之2×2序列
陣列天線特性………………………………………………………………23
表4.1 以線性雙頻天線元件組成之2×2序列陣列天線特性……………………55
表4.2 以圓極化波天線元件組成的2×2雙寬頻圓極化波陣列天線之特性……63

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