本論文提出三種分別應用於不同無線通訊系統的內藏式小型化多頻筆記型電腦天線。首先提出一操作於 WWAN 之耦合饋入倒 F 形天線， 利用耦合使其於低頻產生雙共振以達成寬頻涵蓋 GSM850/900/DCS/PCS/UMTS 五頻操作，並分析使用者手部靠近天線對其輻射特性造成的影響；接著提出一 T 形耦合饋入的方式激發倒 F 形天線兩寬頻模態滿足 WLAN 2.4/5.2/5.8 GHz 全頻操作，其相對於傳統倒 F 形天線體積甚至可縮減超過 50%：最後提出包含一槽縫的雙路徑單極天線，藉由置入四分之一波長槽縫激發一帶拒模態調整天線的阻抗匹配，使其多激發出一共振模態涵蓋 WiMAX 3.5 GHz 頻帶，進而使天線滿足 WLAN/WiMAX 雙網全頻操作。

In this thesis, three small-size internal multiband antennas for laptop computer application for different wireless communication systems are proposed. In the first design, the coupling feed is incorporated to the planar inverted-F antenna to achieve a dual-resonance excitation in the lower band such that the obtained bandwidths can easily cover GSM850/900/DCS/PCS/UMTS operation. The effect of the user’s hand on the antenna is also studied. In the second design, we introduce the T-shaped coupling feed used in the PIFA for successful excitation of two wide operating bands to cover WLAN operation in the 2.4 GHz band and 5.2/5.8 GHz band, and the size reduction is even larger than 50%. Finally, a multiband monopole antenna with a band-notching slit is proposed. By embedding the slit of length about a quarter-wavelength at about 4 GHz, a band-notching characteristic is obtained, which leads to an additional resonance at about 3.5 GHz. Hence, three wide operating bands for covering all the desired operating bands of WLAN/WiMAX systems are achieved for the proposed antenna.

文字目錄.........................................................................................................................i
圖形目錄...................................................................................................................... iii
表格目錄.......................................................................................................................vi
第一章 序論 (Introduction) ........................................................................................1
1.1 研究動機.........................................................................................................1
1.2 文獻導覽.........................................................................................................4
1.3 論文提要.........................................................................................................5
第二章 WWAN 耦合饋入倒 F 形天線 (Coupled-Fed Inverted-F Antenna for WWAN Operation) .........................................................................................7
2.1 天線設計與原理.............................................................................................8
2.2 實驗結果與分析...........................................................................................11
2.3 使用者手部對天線的影響與分析...............................................................21
2.4 心得與討論...................................................................................................27
第三章 WLAN 耦合饋入倒 F 形天線 (Coupled-Fed Inverted-F Antenna for WLAN Operation) ........................................................................................28
3.1 天線設計與原理...........................................................................................29
3.2 實驗結果與分析...........................................................................................31
3.3 延伸研究.......................................................................................................41
3.4 心得與討論...................................................................................................44
第四章 WLAN/WiMAX 雙網操作之單極天線 (Monopole Antenna for WLAN/WiMAX Dual-Network Operation).............................................................46
4.1 天線設計與原理............................................................................................47
4.2 實驗結果與分析............................................................................................49
4.3 心得與討論....................................................................................................60
第五章 結論 (Conclusions) .......................................................................................62
參考文獻 (References) ...............................................................................................64
論文著作表 (Publication List)...................................................................................67

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