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    • 5. 发明公开
    • 근접 결합을 이용한 금속 부착용 전파 식별 태그 안테나
    • 无线电频率标识天线使用接近金属的接近耦合
    • KR1020090036959A
    • 2009-04-15
    • KR1020070102273
    • 2007-10-10
    • 한국전자통신연구원
    • 최원규김정석최길영표철식
    • H01Q13/08H01Q1/24
    • H04Q9/00H04Q2209/47
    • A radio frequency identification tag antenna is provided to increase the intensity of a received signal by an RFID tag by conjugating matching to impedance of the RFID chip. A dielectric layer(210) has the polyhedral shape while including a first side and a second surface parallel with a first surface. A microstrip patch(230) is formed at the part of the second side, and the resonant frequency of the antenna is determined. A microstrip line(250) is formed at the part of the second side and has a polygonal shape including a meander structure. The microstrip line is electro-magnetically combined with the microstrip patch. Short circuit pins(271,273) are formed inside the dielectric layer so that the first side and microstrip line are short-circuited.
    • 提供射频识别标签天线,通过将匹配与RFID芯片的阻抗相结合,通过RFID标签增加接收信号的强度。 电介质层(210)具有多面体形状,同时包括与第一表面平行的第一侧和第二表面。 在第二侧的部分形成微带贴片(230),并确定天线的谐振频率。 微带线(250)形成在第二侧的一部分并具有包括曲折结构的多边形形状。 微带线与微带贴片电磁组合。 短路引脚(271,273)形成在电介质层的内部,使得第一侧和微带线短路。
    • 10. 发明公开
    • 금속 부착용 전파 식별 태그 안테나
    • 无线电频率识别标签天线连接到金属
    • KR1020090032509A
    • 2009-04-01
    • KR1020070097822
    • 2007-09-28
    • 한국전자통신연구원
    • 최원규김정석최길영표철식
    • H01Q1/24
    • G06K19/07749G06K19/07786H01Q1/2208H01Q1/38H01Q7/00
    • An RFID(Radio Frequency Identification) tag antenna is provided to be efficiently matched with a RFID tag chip by controlling an impedance. A RFID tag antenna(100) comprises a dielectric(110), a feeder loop(130), a radiation patch(150), and a short plate(170a, 170b). The dielectric has a first surface, a second surface, and a third surface. The first surface is adjacent to an object. The second surface is parallel arranged about the first surface. The third surface connects the first surface to the second surface. The feeder loop has a horizontal length(L1) and a vertical length(L2), is formed on a part region of the second surface adjacent to the third surface, and is connected to the RFID tag chip. The radiation patch is formed on a part region of the second surface, and radiates an electromagnetic wave through a magnetic coupling with the feeder loop. The short plate is formed on a part region of the third surface, shorts-circuit the radiation patch and the first surface, and controls the magnetic coupling between the radiation patch and the feeder loop.
    • 提供RFID(射频识别)标签天线,通过控制阻抗与RFID标签芯片高效匹配。 RFID标签天线(100)包括电介质(110),馈线环(130),辐射贴片(150)和短板(170a,170b)。 电介质具有第一表面,第二表面和第三表面。 第一个表面与一个物体相邻。 第二表面围绕第一表面平行布置。 第三表面将第一表面连接到第二表面。 馈线回路具有水平长度(L1)和垂直长度(L2),形成在与第三表面相邻的第二表面的部分区域上,并连接到RFID标签芯片。 辐射贴片形成在第二表面的一部分区域上,并通过与馈线环路的磁耦合辐射电磁波。 短板形成在第三表面的部分区域上,使辐射贴片和第一表面短路,并且控制辐射贴片和馈送器环路之间的磁耦合。