本論文提出一系列多頻WWAN環圈手機天線，藉由設計多種不同的耦合環圈激發方式，使環圈天線低頻與高頻段共振模態都能同時達成較寬頻的操作頻寬。本論文所提出的耦合式環圈天線設計除了至少可以完全涵蓋WWAN五系統頻帶(GSM850/900/ 1800/1900/UMTS)操作外，其雙寬頻的操作頻寬使得手機天線在實際應用時能夠具有較佳的頻偏容忍度與頻寬可調整性。此外為了分析了解環圈天線應用於直立式與折疊式兩種不同手機時，其通過SAR與HAC規範的困難差異。本論文也針對所開發適合應用於直立式與折疊式兩種手機的小型化環圈晶片天線，進行詳細SAR與HAC的模擬分析與結果討論。

In this dissertation, a variety of novel mutiband WWAN loop antennas are presented. By designing proper coupled-fed mechanisms for the proposed loop antennas, the impedance bandwidth of the loop antenna can be greatly enhanced to achieve two wide operating bandwidths at antenna’s lower and upper bands to easily cover GSM850/900/1800/1900/UMTS operation. With two wider operating bandwidths obtained, the tolerance of frequency detuning and the capability of bandwidth tuning of the loop antennas can be improved for practical applications. In addition, in order to find methods to meet the SAR and HAC criterions, the proposed small-size chip loop antenna studied in this dissertation which is suitable for both bar-type and folder-type mobile phone applications are simulated and analyzed for SAR and HAC issues.

文字目錄i
圖形目錄iii
表格目錄ix

第一章 序論 (Introduction)1
1.1 研究動機1
1.2 文獻導覽2
1.3 論文提要4

第二章 平面印刷式五頻環形手機天線(Printed Loop-Type Antenna for Penta- Band Mobile Phone Operation)8
2.1 天線設計與技術原理8
2.2 實驗結果與分析10
2.3 心得與討論19

第三章 可表面黏著五頻環圈手機天線(Surface-Mount Loop Antenna for Penta- Band Mobile Phone Operation)20
3.1 天線設計21
3.2 實驗結果與分析26
3.3 心得與討論48

第四章 可表面黏著七頻環圈手機天線(Surfece-Mount Loop Antenna for Seven- Band Mobile Phone Operation)49
4.1 天線設計與技術原理49
4.2 實驗結果與分析51
4.3 心得與討論64

第五章 可表面黏著FR4晶片式多頻環圈手機天線(Surface-Mount FR4 Chip Loop Antenna for Multiband Mobile Phone Operation)65
5.1 天線設計與技術原理66
5.2 實驗結果與分析70
5.3 天線應用於折疊式手機之實驗結果與分析82
5.4 SAR模擬結果與分析90
5.4 HAC模擬結果與分析96
5.6 心得與討論103

第六章 結論 (Conclusion)105

參考文獻 (References)109

論文著作表 (Publication List)115

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