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    • 12. 发明申请
    • Dual polarization antenna and RFID reader employing the same
    • 采用双极化天线和RFID阅读器
    • US20060145926A1
    • 2006-07-06
    • US11297182
    • 2005-12-07
    • Won-Kyu ChoiNak-Seon SeongCheol-Sig PyoJong-Suk Chae
    • Won-Kyu ChoiNak-Seon SeongCheol-Sig PyoJong-Suk Chae
    • H01Q1/38
    • H01Q1/2216H01Q1/22H01Q9/0421H01Q21/065H01Q21/24
    • Provided is a dual polarization antenna realized by using four inverted F-type radiators and a Radio Frequency Identification (RFID) reader employing the dual polarization antenna. The dual polarization antenna includes a ground plate and four inverted F-type radiators set up on the ground plate. Currents of the same phase are fed to the first and second inverted F-type radiators each other. Currents of an inverted phase are fed to the third and fourth inverted F-type radiators each other. The four inverted F-type radiators form an angle of 90° with one another. The first and second inverted F-type radiators radiate electric wave of vertical polarization and the third and fourth inverted F-type radiators radiate electric wave of horizontal polarization. Since the dual polarization antenna has excellent orthogonal and isolation characteristics, the antenna can extend a transmission distance between the reader and the tag and improve a communication quality.
    • 提供了通过使用四个反相F型辐射器实现的双极化天线和采用双极化天线的射频识别(RFID)读取器。 双极化天线包括接地板和设置在接地板上的四个倒F型散热器。 相同相位的电流彼此馈送到第一和第二倒置的F型散热器。 反相的电流相互馈送到第三和第四倒置的F型散热器。 四个倒F型散热器彼此形成90°的角度。 第一和第二倒F型辐射器辐射垂直极化电波,第三和第四反相F型辐射器辐射水平极化电波。 由于双极化天线具有优异的正交和隔离特性,所以天线可以扩展读取器和标签之间的传输距离,并提高通信质量。
    • 14. 发明授权
    • Near-field RFID reader antenna
    • 近场RFID阅读器天线
    • US08212679B2
    • 2012-07-03
    • US12507258
    • 2009-07-22
    • Jeong-seok KimWon-kyu ChoiGil-young ChoiJong-suk Chae
    • Jeong-seok KimWon-kyu ChoiGil-young ChoiJong-suk Chae
    • G08B13/14
    • H04Q9/00H01Q1/2216H01Q11/02H04Q2209/47
    • A near-field radio frequency identification (RFID) reader antenna is provided. The near-field RFID reader antenna is intended to separately recognize adjacent items to which a plurality of small RFID tags are attached, such as wines displayed on a shelf in a store or chip trays on casino tables, using a near field. The near-field REID reader antenna includes a dielectric layer, at least one signal line formed on the dielectric layer, a ground surface formed under the dielectric layer, at least one ground line formed under the dielectric layer to be electrically connected to the ground surface in parallel with the signal line, at least one signal stub formed to be electrically connected to the signal line toward the ground line, and at least one ground stub formed to be electrically connected to the ground line toward the signal line in parallel with the signal stub.
    • 提供了近场射频识别(RFID)阅读器天线。 近场RFID读取器天线旨在使用近场来单独识别附接有多个小RFID标签的相邻物品,例如在娱乐场桌上的商店或筹码盘中的货架上显示的葡萄酒。 近场REID读取器天线包括电介质层,形成在电介质层上的至少一条信号线,形成在电介质层下面的接地表面,形成在电介质层之下的至少一个接地线,以电连接到地表面 与信号线并联,至少一个信号短截线形成为电连接到信号线朝向接地线,以及至少一个接地短截线,其形成为与信号线电连接到信号线并与信号 存根。
    • 17. 发明申请
    • NEAR-FIELD RFID READER ANTENNA
    • 近场RFID阅读器天线
    • US20100141386A1
    • 2010-06-10
    • US12507258
    • 2009-07-22
    • Jeong-seok KIMWon-kyu ChoiGil-young ChoiJong-suk Chae
    • Jeong-seok KIMWon-kyu ChoiGil-young ChoiJong-suk Chae
    • H04B5/00H04Q5/22
    • H04Q9/00H01Q1/2216H01Q11/02H04Q2209/47
    • A near-field radio frequency identification (RFID) reader antenna is provided. The near-field RFID reader antenna is intended to separately recognize adjacent items to which a plurality of small RFID tags are attached, such as wines displayed on a shelf in a store or chip trays on casino tables, using a near field. The near-field REID reader antenna includes a dielectric layer, at least one signal line formed on the dielectric layer, a ground surface formed under the dielectric layer, at least one ground line formed under the dielectric layer to be electrically connected to the ground surface in parallel with the signal line, at least one signal stub formed to be electrically connected to the signal line toward the ground line, and at least one ground stub formed to be electrically connected to the ground line toward the signal line in parallel with the signal stub.
    • 提供了近场射频识别(RFID)阅读器天线。 近场RFID读取器天线旨在使用近场来单独识别附接有多个小RFID标签的相邻物品,例如在娱乐场桌上的商店或筹码盘中的货架上显示的葡萄酒。 近场REID读取器天线包括电介质层,形成在电介质层上的至少一条信号线,形成在电介质层下面的接地表面,形成在电介质层之下的至少一个接地线,以电连接到地表面 与信号线并联,至少一个信号短截线形成为电连接到信号线朝向接地线,以及至少一个接地短截线,其形成为与信号线电连接到信号线并与信号 存根。