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MICROSTRIP ANTENNA FOR CIRCULARLY POLARIZED WAVES, AND WIRELESS COMMUNICATION DEVICE HAVING THE SAME
MICROSTRIP ANTENNA FOR CIRCULARLY POLARIZED WAVES, AND WIRELESS COMMUNICATION DEVICE HAVING THE SAME
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机译:圆极化波的微带天线和具有相同功能的无线通信设备
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摘要
A microstrip antenna for circularly polarized waves comprising a dielectric substrate (2), on the surface of which only a radiation electrode (3) for generating the circularly polarized waves is formed. A signal line (4) of a radiation electrode feeding coplanar line is formed on the back of the dielectric substrate (2), and a grounding electrode (5) is formed on the entire back of the dielectric substrate that avoids the formed area of the signal line (4). The signal line (4) takes a mode, in which it is formed to extend from the back end edge (7) of the dielectric substrate (2) to a midway position toward a radiation electrode center position (O) on a dielectric substrate back face (2b). The microstrip antenna can improve the circular polarization characteristics easily and can be lowered in cost and easily reduced in size.
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