臺灣博碩士論文加值系統

在本論文將利用平面式倒F天線(Planar Inverted-F Antenna, PIFA)形式的天線，設計出一個涵蓋GSM900/DCS1800/PCS1900/UMTS2100手機頻帶的天線。剛開始針對天線的設計參數，做一系列的探討與分析，如天線的裂孔、形狀、裂孔、彎曲線做一系列分析，並提出一新的概念T型孔槽來調整高頻，於章節最後整理出一天線設計參數總表。
並根據整理出來的參數，照天線的設計流程，再加上寄生天線的應用，設計出雙頻和四頻天線，在最後並利用實作與模擬之間的比較來探討天線的效率、增益、幅射場型等特性，並試著探討實作與模擬之間差異，使得設計的天線可以真正的在商場上應用。

This paper is to design a quad-band (GSM900/ DCS1800/ PCS1900/ UMTS
2100 bands) handset antenna by using Planar Inverted-F Antenna (PIFA) type structure for wireless markets. In the beginning, parameters for designing antenna are focalized and a series of topics are analyzed and researched like antenna slot, pattern, slit, meander line...etc. For adjusting high frequency part, a new concept of T slot is proposed. A table of organized antenna-design-parameters is in the last chapter.
Dual band and quad band antenna are designed based on the table of organized antenna-design-parameters, antenna-design-methodology and application of parasitic-antenna. For studying antenna characteristic of efficiency, gain, radiation pattern...etc. and also trying to understand the differences between computer simulations and hands-on experiments, comparisons between computer simulations and hands-on experiments are done. Finally, this really makes the designed-antenna
commercialized.

中文提要 ………………………………………………………… i
英文提要 ………………………………………………………… ii
誌謝 ………………………………………………………… iii
目錄 ………………………………………………………… iv
圖目錄 ………………………………………………………… v
表目錄 ………………………………………………………… viii
第一章 緒論…………………………………………………… 1
1.1 研究動機……………………………………………… 1
1.2 論文綱要……………………………………………… 2
第二章 倒F天線的演進與理論………………………………… 3
2.1 倒F型天線簡介………………………………………… 3
2.2 空腔模型……………………………………………… 5
2.3 天線設計參數探討…………………………………… 7
2.4 本章總結……………………………………………… 21
第三章 第三代行動電話倒F天線設計………………………… 22
3.1 雙頻天線設計………………………………………… 23
3.2 雙頻天線幅射場型…………………………………… 37
3.3 四頻天線設計………………………………………… 39
3.4 本章總結……………………………………………… 50
第四章 天線品質的量測與分析……………………………… 51
4.1 測試儀器與設備……………………………………… 51
4.2 特性量測……………………………………………… 53
4.3 電磁波能量吸收率(SAR) …………………………… 65
4.4 本章總結……………………………………………… 68
第五章 結論…………………………………………………… 69
參考文獻 ………………………………………………………… 70

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