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研究生:邱宗文
研究生(外文):Tzung-Wern Chiou
論文名稱:包含饋入網路之平面天線新型設計
論文名稱(外文):Novel Designs of Planar Antennas Including the Feed Network
指導教授:翁金輅翁金輅引用關係
指導教授(外文):Kin-Lu Wong
學位類別:博士
校院名稱:國立中山大學
系所名稱:電機工程學系研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:中文
論文頁數:153
中文關鍵詞:圓極化平面天線寬頻操作雙極化行動通訊基地台天線
外文關鍵詞:BASE STATION ANTENNAPLANAR ANTENNAWIDE BEAMWIDTHBROADBAND OPERATIONDUAL POLARIZATION
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本項研究主要是整合饋入網路與平面天線,來達成新型平面天線之設計。藉由加入適當被動元件所構成的饋入網路與平面天線的整合,可以改善平面天線的各項特性(圓極化軸比頻寬、交叉極化位準、雙極化天線隔離度及高階模態的控制)或達到雙頻的操作。本論文一共分為以下五部分:一、利用威金森功率分配器與具有90°相差的支路耦合器設計寬頻圓極化平板天線,此種設計之3-dB軸比頻寬都能大於30%,而這點是一般採用單饋入圓極化天線所遠遠不及;二、利用加入多段的開路微帶線段的帶拒饋入網路,設計出雙寬頻的平板天線;三、利用兩輸出埠具有180°相差的威金森功率分配器,設計出具有高隔離度及高交叉極化位準的雙極化平板天線;四、操作於GSM900/1800的雙頻雙極化平板天線設計;五、加入多段開路微帶線的帶拒饋入網路與p形低通饋入網路應用於高階諧振的控制。
Novel designs of planar antennas including the feed network for improving the antenna performance improvement (CP axial-ratio bandwidth, XPL, port decoupling for dual-polarized operation, and harmonic control) or achieving dual-band operation are presented. This thesis, comprises five sections. Firstly, for obtaining broadband CP designs, the Wilkinson power divider and branch-line coupler are used. The 3-dB axial ratio CP bandwidths of all proposed antennas are larger than 30%. Secondly, the dual broadband patch antennas including a stopband network are proposed. Thirdly, the dual-polarized patch antenna with high XPL and isolation between two ports by using a Wilkinson power divider with a 180° phase shift between its two ports is proposed. Fourthly, the dual-band and dual-polarized patch antenna suitable for base-station antenna applications for mobile communications systems is studied. Finally, the harmonic control study of a square microstrip antenna is presented.
第一章序論 (Introduction) ……………………………………… 1
1. 1概述 …………………………………………………………… 1
1. 2文獻導覽 ……………………………………………………… 1
1. 3內容提要 ……………………………………………………… 2
第二章雙饋入之寬頻圓極化設計
(Broadband Circularly Polarized Patch Antennas) ………….. 5
2. 1概述 ……………………………………………………………. 5
2. 2天線設計 ……………………………………………………… 5
2. 3實驗結果與模擬分析 ………………………………………… 13
2. 3. 1威金森功率分配器與支路耦合器之介紹…………… 13
2. 3. 2電容式耦合饋入與威金森功率分配器之整合設計.. 18
2. 3. 3槽孔耦合饋入與威金森功率分配器之整合設計….. 25
2. 3. 4間隙耦合饋入與威金森功率分配器之整合設計….. 29
2. 3. 5電容式耦合饋入與支路耦合器之整合設計………… 34
2. 4心得與討論 …………………………………………………… 39
第三章雙寬頻平板天線設計
(Dual Broadband Patch Antennas) ……………………………. 40
3. 1概述 …………………………………….………………..……. 40
3. 2天線設計 ……………………………………………………… 40
3. 3實驗結果與分析 ……………………………………………. 48
3. 3. 1饋入網路之設計 …………………………………… 48
3. 3. 2兩天線與饋入網路之整合設計 …………………… 52
3. 3. 3單一輻射金屬片與饋入網路之整合設計………….. 59
3. 4心得與討論 ……………………………………….…………. 62
第四章寬頻雙極化平板天線設計
(Broadband Dual-Polarized Patch Antennas) ..………. 63
4. 1概述 …………………………………………………….……. 63
4. 2天線設計 ……………………………………………….……. 64
4. 3實驗結果與模擬分析 ………………………………….……. 71
4. 3. 1接地面尺寸對雙極化天線之影響 .………….…… 71
4. 3. 2間隙耦合與槽孔耦合之雙極化設計 ………….…… 76
4. 3. 3電容式耦合與槽孔耦合之雙極化設計 …………. 84
4. 4心得與討論 ………………………………………………….. 95
第五章雙頻雙極化天線設計
(Dual-Band Dual-Polarized Patch Antennas) ….….. 96
5. 1概述 ………………………………………………..………… 96
5. 2天線設計 ……………………………………….……………. 96
5. 3實驗結果與模擬分析 ……………………………..………… 105
5. 3. 1縮小化雙頻雙極化天線設計………………………. 105
5. 3. 2行動通訊基地台平板陣列天線研製 ……………… 110
5. 4心得與討論 …………………………………………………. 119
第六章天線之高階諧振諧振控制
(Harmonic Control of a Square Microstrip Antenna)
………………………………….…..…………...…… 120
6. 1概述 ………………………………………………..……… 120
6. 2天線設計 ……………………………….…..…….………. 120
6. 3實驗結果與分析 ……………………………..……..……. 127
6. 3. 1帶拒饋入網路與天線之整合設計 …………….… 127
6. 3. 2低通饋入網路與天線之整合設計 ……………… 137
6. 4心得與討論 ………………………………………..………… 143
第七章結論 (Conclusions) ………………………….…..…………… 144
參考文獻 (References) ……………………………….….…………… 147
附錄A 論文著作表 (Publication List) ……………………………… 154
參 考 文 獻
(References)
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