精选优质文档-倾情为你奉上外文翻译原文Wideband Microstrip Patch Antenna With U-Shaped Parasitic ElementsSang-Hyuk Wi, Yong-Shik Lee, and Jong-Gwan YookAbstractA wideband U-shaped parasitic patch antenna is proposed. Two parasitic elements are incorporated into the radiating edges of a rectangular patch whose length and width are /2 and/4, respectively, in order to achieve wide bandwidth with relatively small size. Coupling between the main patch and U-shaped parasitic patches is realized by eith