近年來由於無線通訊產業的興盛，各式行動裝置平台俯拾即是，在生活中也能隨時連上網際網路與世界無縫連接；消費者除了對無線傳輸效能要求更高，同時也希望通訊裝置外型美觀、機體輕盈，在種種需求之下，可將天線放與窄邊框筆電，或是配備有行動網路傳輸功能的高階筆電機構結合的設計，具有相當挑戰性。
本論文第一部份提出一款置於二合一翻轉式觸控筆電轉軸內部且操作在無線區域網路頻段(Wireless LAN, WLAN)的雙頻天線設計。其架構採用雙端開槽孔。為了在有限空間創造出兩分明之共振模態，槽孔使用細線與高頻之尾端加大開口兩種技巧，使此天線可以達到包覆雙頻全頻段的需求。該設計不僅在筆電模式與平板模式下表現良好，亦為全平面設計，能夠降低製作成本，符合應用於二合一翻轉式觸控筆電轉軸內部的需求。
第二個設計為置於筆電螢幕上方之頻率可重置天線，操作頻段為行動通訊的長期演進技術(Long Term Evolution, LTE)全頻段，此天線頻率可重置原理為在IFA天線末端加上金屬片，並以二極體切換方式改變天線尾端電容負載值，來達成頻率可重置之設計。論文中提出三款不同尺寸之天線，第一款是尺寸為66.5 mm × 15 mm × 0.8 mm之平面式天線，其優勢為0.8 mm的厚度；第二款為65 mm×7 mm×6 mm之立體式天線，其優勢為較小之長度與較小的寬度，並且包涵LTE全頻帶；第三款為70 mm×7 mm×3 mm的天線，其優勢為高度只有3 mm。經實做及量測驗證，每隻天線在效能表現與縮小化的部分各有其特色。

Owing to the prosperity of the wireless communication industry, various mobile devices have been developed. Pervasive connection to the Internet at all-time has become a norm-throughput. In addition to the higher in wireless transmission, consumers also prefer sleek and light weight product. Increased connection requirements and configuration narrow border for high-end laptop models also make the design task more challenging.
The first part proposes a dual-band WLAN antenna design that is placed inside the hinge area of a 2-in-1 convertible-type notebook. In order to create two resonant modes in a limited antenna space, the antenna uses two open-ended slots to cover WLAN 2.45/5 GHz bands. Two techniques including the use of a thin wire and a broadened slot opening are adopted. This design performs well in both notebook and tablet modes. It’s implemented on a single-sided printed circuit board, which can reduce the manufacturing cost.
The second design is a frequency-reconfigurable antenna placed on the top edge of laptop screen. The operating bands comply with the long term evolution (LTE) needs for mobile communication. The principle feature of the reconfigurable antenna is adding metal patchs at the end of the IFA antenna. The diodes are connected to the patches and can be used to change the capacitive loading values. Three different antenna design of different sizes are proposed. The first one is a 66.5 mm × 15 mm × 0.8 mm planar thickness; the second design sizes are 65 mm × 7 mm × 6 mm, which has the advantages of a smaller length and a smaller width. It provides comprehensive LTE band coverage; the third one dimensions are 70 mm × 7 mm × 3 mm. The antenna height is reduced to merely 3 mm.

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