发明申请
US20060012527A1 Radio tag antenna structure for an optical recording medium and a case for an optical recording medium with a radio tag antenna 失效
用于光学记录介质的无线电标签天线结构和具有无线电标签天线的光学记录介质的情况

Radio tag antenna structure for an optical recording medium and a case for an optical recording medium with a radio tag antenna
摘要:
An antenna comprises a dielectric member, an antenna pattern formed on one surface of the dielectric member, and a ground pattern formed on the other surface of the dielectric member. A part or the whole of the antenna is implanted in a dielectric layer on the side from which a laser beam does not come in of an optical recording medium symmetrically having a metal layer reflecting the laser beam and the dielectric layer, thereby to provide a radio tag antenna structure for an optical recording medium which is simple, is small-sized, and can secure necessary reading performance.
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