本論文提出可適用於金屬邊框及金屬機殼手機的混合式倒F形/半環圈天線設計。第一個天線設計利用短邊邊框內側的金屬層作為天線的輻射部，並藉由饋入端連接於邊框的輻射部，來激發倒F形天線與半環圈天線模態，再搭配匹配電路增加其天線模態的操作頻寬，使此天線僅在高度3 mm的淨空區下，即可涵蓋LTE (824~960 MHz/1710~2690 MHz)及GPS (1575 MHz)頻帶操作。而第二個天線設計則將天線結構與金屬機殼外觀作結合，並藉由一饋入電路板連接至金屬邊框來激發半環圈天線模態與倒F形天線模態。而位於饋入電路板上的饋入網路可不佔用金屬背蓋上的空間，於金屬淨空區間僅為2 mm下，天線可涵蓋824~960 MHz及1710~2690 MHz之LTE雙寬頻操作。此兩個天線設計因結構簡單且尺寸小，適合配置於現今窄邊框的金屬機殼手機中。

The hybrid inverted-F/half-loop antennas for the metal-framed/metal-casing smartphone are provided. The first design uses metal strips printed on the inner surface of the short-edge frame of the metal-framed smartphone as the antenna’s radiator. By connecting a feed network to the on-frame metal strips, an inverted-F antenna resonant mode and a half-loop antenna resonant mode can be generated. With a low profile of 3 mm, the antenna can cover the LTE band of 824~960/1710~2690 MHz and the GPS band 1575 MHz with the aid of the matching circuit in the feed network. The second design uses metal frame section of the metal-casing smartphone as the antenna’s radiator. By using an elevated feed circuit board connected to the metal frame section, both a half-loop antenna resonant mode and an inverted-F antenna resonant mode can also be obtained. The feed circuit board with the feed network disposed thereon does not occupy the planar space on the metal casing. In this case, with a narrow metal clearance of 2 mm, the antenna can provide two wide bands of 824~960/1710~2690 MHz for the LTE operation. Details of the two proposed antennas are presented, and there operating principle and experimental results are presented and discussed.

論文審定書 i
致謝 ii
中文摘要 iii
英文摘要 iv
目錄 v
圖次 vi
第一章 序論 (Introduction) 1
1.1 研究動機 1
1.2 文獻導覽 2
1.3 論文各章節提要 3
第二章 應用於金屬邊框手機之混合式倒F形/半環圈LTE/GPS天線 (Hybrid Inverted-F/Half-Loop Antenna for the LTE/GPS Operation in the Metal-Framed Smartphone) 5
2.1 天線結構及技術原理說明 6
2.2 天線參數分析與實驗量測數據 11
2.3 延伸設計 17
2.4 心得與討論 20
第三章 應用於金屬機殼手機之混合式倒F形/半環圈LTE天線 (Hybrid Inverted-F/Half-Loop Antenna for the LTE Operation in the Metal-Casing Smartphone) 21
3.1 天線結構及技術原理說明 21
3.2 天線參數分析與實驗量測數據 29
3.3 延伸設計 35
3.4 心得與討論 38
第四章 結論 (Conclusions) 40
參考文獻 (References) 43
著作表 (Publication List) 47

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