應用於第三代行動電話之倒Ｆ天線設計

Planar Inverted-F Antenna Design for the Third Generation Cellular Phone

李俊賢(CHUN-HSIEN LEE)

指導教授 ： 丘增杰

國立中央大學/資訊電機學院/電機工程研究所碩士在職專班/碩士(2008年)

摘要

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。

關鍵字

四頻天線 ； 倒F天線 ； 手機天線

並列摘要

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.

並列關鍵字

antenna ； PIFA

參考文獻

[1] Kin-Lu Wong ,Yuan-Chih Lin, Ting-Chih Tseng,” Thin internal GSM/DCS patch antenna for a portable mobile terminal,” Antennas and Propagation, IEEE Transactions, vol.54,pp.238–242,2006.

[2] Kin-Lu Wong, Chun-I Lin,” Internal GSM/DCS antenna backed by a step-shaped ground plane for a PDA phone,” Antennas and Propagation, IEEE Transactions ,

[3] Kin-Lu Wong, Yuan-Chih Lin, Brian Chen,” Internal patch antenna with a thin air-layer substrate for GSM/DCS operation in a PDA phone,” Antennas and Propagation, IEEE Transactions , vol.55, pp.1165 – 1172, April 2007.

[4] Wen-Shyang Chen, Ping-Cheng Chang, Tsung-Wen Chiu, Fu-Ren Hsiao,” An embedded tri-band planar inverted-F antenna with a branch-line shorting strip,” Antennas and Propagation Society International Symposium, 2005 IEEE, vol.1B ,pp.447 – 450 , 2005.

[5] Hao-Chun Tung,Shih-Wen Lu, Ji-Fuh Liang, Kin-Lu Wong,” Internal monopole plastic chip antenna for GSM/DCS/PCS mobile phone, ” Antennas and Propagation Society International Symposium, 2005 IEEE, vol.2A, pp. 434-437 ,July 2005.