Design and optimization for the satellite Ku-band CP array antennas

doi:10.1109/AEM2C.2010.5578817

淡江大學機構典藏 > 工學院 > 電機工程學系暨研究所 > 會議論文 > Item 987654321/76428

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题名:	Design and optimization for the satellite Ku-band CP array antennas
作者:	Tuen, Lung-fai;Li, Ching-lieh
贡献者:	淡江大學電機工程學系
日期:	2010-08
上传时间:	2012-05-09 16:15:56 (UTC+8)
摘要:	The goal is to design a Ku-band circular polarization array for satellite application, and an array of circular polarization satellite antenna covering 11.45~12.75GHz is reported. The Wilkinson equal-power splitter is first used to feed the signal power into the array, for which we have examined the simulated characteristics of the 2X1 and 2X2 arrays, while the prototype of the 2X2 array is fabricated and measured for verification purpose. Then the phased array antenna is optimized by genetic algorithms to determine the optimum parameters for the phase shifter. Note that the coupling effect between the antennas elements must be took into account to achieve good accuracy. To accomplish this, we have to calculate in advance the radiated E fields of the entire antenna array (at least including the neighboring components) with only a single antenna element being excited. The far zone E fields Er of all the angles (up to one degree resolution) are obtained and saved for successive optimization using GA algorithm. The optimum result could be programmed into a microprocessor to control the array antenna steering electronically.
關聯:	2010 International Conference on Applications of Electromagnetism and Student Innovation Competition Awards (AEM2C), pp.274-278
DOI:	10.1109/AEM2C.2010.5578817
显示于类别:	[電機工程學系暨研究所] 會議論文

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