現今，消費者市場的導向機制使筆電與行動裝置的外型逐漸朝金屬機身與窄邊框方向研發設計，本論文提出一款應用於筆電之LTE槽孔天線，涵蓋690-960 MHz與1700-2700 MHz頻段，能符合多數國家電信業者所支援之LTE規格，所提出的低頻段槽孔長度為134 mm，高頻段槽孔長度為46 mm，加上電路走線尺寸為15×17 mm2的匹配電路設計，該設計適用於金屬機殼與窄邊框筆電，經由實作與效能量測，驗證此設計有良好的輻射效率與匹配。
本論文第一部分，將對低頻與高頻槽孔的基本模態進行參數分析，透過不同幾何參數的模擬，驗證LTE槽孔天線能分別用於690~960 MHz低頻帶與1700~2700 MHz高頻帶，並進行實作的效能驗證，在不同的電路參數情形，分析設計效能上的優劣差異。
本論文第二部分研究如何使用單一饋入，激發低頻帶與高頻帶槽孔天線，並利用L型匹配電路來增加高低頻的操作頻寬，所完成的天線能夠涵蓋LTE700/GSM850/900低頻帶與GSM1800/1900/UMTS/LTE2300/2500/2600高頻帶，並進行實作的效能驗證。
本論文第三部份把槽孔天線及其匹配電路改置於窄邊框之上，減少匹配電路所佔據之面積，同時，也設計一款雙工器電路，具有使高低頻訊號能量分流的效果，使其方便與天線阻抗匹配電路整合，在本章中針對雙工器與天線結構整合分別進行實作與效能驗證。

This thesis proposes an LTE slot antenna design for laptop devices. It covers frequency bands of 690-960 MHz and 1700-2700 MHz. The length of low band slot antenna is 134 mm and the high band antenna is 46 mm. The area occupied by L-shape matching circuit is 15×17 mm2. It is compatible with laptops’ metal enclosure and narrow bezel. According to radiation pattern measurements, the proposed antenna can deliver good radiation efficiency and satisfactory impedance matching results.
In the first part, we analyze basic resonance modes of slot antennas. Advantages and disadvantages of the proposed antenna are discussed with parametric search results. Measurements results suggest the design provides reliable performance.
The second part considers the problem of how to use a single feed to excite low and high band slot antennas at the same time. With an L-shaped matching circuit, it widens the antenna operating bandwidth. By measurements, the proposed antenna with impedance matching circuit can cover the LTE700/GSM850/900 bands of LTE low band and GSM1800/1900/UMTS/LTE2300/2500/2600 bands of LTE high band.
In the third part, the slot antenna as well as the impedance matching circuit are placed on narrow bezel to reduce the area by the antenna assembly occupied. Also, a diplexer circuit is proposed, which is easy to integrate with the antenna impedance matching circuits. The diplexer separates energy paths of high and low band signals, and provide more flexibility to be used in LTE bands. In the end, the performance of the diplexer and the antenna are verified.

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