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全球通讯市场已走向无线通讯时代。在通讯时代中,最重要的元件是“天线”,而“微波天线”已成为极重要的“关键性零组件”。天线不再是过去常见的“杆状”、“线状”及“碟形”天线,而是“平面”隐形天线,其特色是薄而扁平、可以和实体共形,广频且多功能,属于“印刷线路”科技。 GPS是美国的24颗人造卫星全球定位系统的简称。目前使用的GPS平面天线主要分为两种:一种是“贴片(Patch)”天线,属于窄频(～2％),只能收GPS卫星讯号。另一种是新发明有专利的“十字(Crossed-slot)”天线,
The global communications market has moved toward an era of wireless communications. In the communications age, the most important component is the “antenna”, and the “microwave antenna” has become an extremely important “key component.” Instead of the usual “rod”, “wire” and “dish” antennas, the antenna is a “planar” invisible antenna featuring a thin and flat antenna that can be physically conformal, broad frequency and versatile, Belongs to “printed circuit” technology. GPS is short for the 24 U.S. satellite global positioning systems. The currently used GPS planar antennas are mainly divided into two types: one is a “patch” antenna which belongs to a narrow frequency (~ 2%) and can only receive GPS satellite signals. The other is the newly invented and patented “Crossed-slot” antenna,