彎曲及碎型天線設計

The design of the meander and fractal antennas

高坤琳(Kwin-Lin Kao)

指導教授 ： 丘增杰

國立中央大學/資訊電機學院/電機工程學系/碩士(2006年)

摘要

本論文主要是探討兩種單極天線(Monopole Antenna)。第一種為彎曲天線(Meander Antenna)，研究重點為天線在FR4基板的密度大小、天線的長度、還有彎曲數的多寡對天線在共振頻率還有輻射效率方面的影響。
第二種為碎形天線(Fractal Antenna)，研究重點在天線分枝數的多寡、分支處對饋入點的遠近對天線在共振頻率和輻射效率的影響。

關鍵字

彎曲及碎型天線設計

並列摘要

In the thesis, two types of monopole antennas are studied: meander antennas and fractal antennas. The focus of the studies is on the effect of the antenna configuration on the resonant frequency, radiation efficiency, and bandwidth. A series of simulations with regard to the variation of many geometric parameters are conducted using IE3D computer software. Typical cases of the antennas are implemented using FR4 printed-circuit boards. The return loss and radiation patterns of the antennas are also measured.

並列關鍵字

The design of the meander and fractal antennas

參考文獻

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[2] K. J. Vinoy, K. A. Jose, V. K. Varadan, and V. V Varadan, “Hilbert curve fractal antenna: A small resonant antenna for VHF/UHF applications,” Microwave Opt. Technol. Lett., vol. 29,no. 4, pp.215-219, May 2001 .

[3]-, “Resonant frequency of Hilbert curve fractal antennas,” in Proc. Dig.2001 IEEE AP-S Int. Symp., Boston, MA, 2001, pp. 648-652.

[4] -,“Hilbert curve fractal antennas with reconfigurable characteristics,” in Proc. 2001 IEEE MMT-S Symp., Pheonix, AZ,2001, pp.381-384.

[5]J. Romeu and S. Blanch, “A three dimensional Hilbert antenna,” in Proc. 2002 IEEE AP-S Int. Symp., vol.4,San Antonio,TX,2002,pp.550-553.