Dept. of Electr. Eng., National Taiwan Univ.Lan, Cheng-WeiCheng-WeiLanKiang, Jean-FuJean-FuKiang2007-04-192018-07-062007-04-192018-07-062004-03http://ntur.lib.ntu.edu.tw//handle/246246/200704191001590application/pdf212816 bytesapplication/pdfen-USQuadrifilar helix antenna for GPS applicationsjournal article10.1109/ICNSC.2004.1297514http://ntur.lib.ntu.edu.tw/bitstream/246246/200704191001590/1/01297514.pdf