会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 13. 发明授权
    • PIFA and RFID tag using the same
    • PIFA和RFID标签使用相同
    • US07504998B2
    • 2009-03-17
    • US11297687
    • 2005-12-07
    • Won-Kyu ChoiHae-Won SonJe-Hoon YunJi-Hoon BaeCheol-Sig PyoJong-Suk Chae
    • Won-Kyu ChoiHae-Won SonJe-Hoon YunJi-Hoon BaeCheol-Sig PyoJong-Suk Chae
    • H01Q1/38
    • H01Q1/2225H01Q1/22H01Q9/0421H01Q9/045
    • Provided is a planar inverted-F antenna (PIFA) which has a Co-Planar Waveguide (CPW) feeding structure and can be attached to a metal surface, and an RFID tag using the same. The PIFA includes a radiation patch layer; a Co-Planar Waveguide (CPW) feeding layer; a feeding probe; and a short-circuit. The CPW feeding layer includes a feeding means and a ground surface. The feeding probe electrically connects the radiation patch layer and the feeding means and provides a Radio Frequency (RF) signal to be radiated to the radiation patch layer. The short-circuiting means short-circuits the radiation patch layer and the ground surface through the dielectric layer. The PIFA can be applied to a passive RFID tag. Impedance matching between the antenna and the RFID chip is possible. Also, the PIFA can easily control resonant frequency of the antenna and reactance.
    • 提供了具有共平面波导(CPW)馈送结构并且可以附着到金属表面的平面倒F天线(PIFA)和使用其的RFID标签。 PIFA包括辐射贴片层; 共平面波导(CPW)馈电层; 喂食探针; 和短路。 CPW馈送层包括馈送装置和接地表面。 馈送探针将辐射贴片层和馈送装置电连接并提供要辐射到辐射贴片层的射频(RF)信号。 短路装置通过介电层使辐射贴片层和地表面短路。 PIFA可应用于无源RFID标签。 天线和RFID芯片之间的阻抗匹配是可能的。 此外,PIFA可以轻松控制天线的谐振频率和电抗。
    • 20. 发明授权
    • Transmit/receive antenna system having offset feed points for high isolation
    • 发射/接收天线系统具有高隔离的补偿馈电点
    • US08081062B2
    • 2011-12-20
    • US12088567
    • 2005-12-29
    • Hae-Won SonWon-Kyu ChoiChan-Soo ShinGil-Young ChoiCheol-Sig Pyo
    • Hae-Won SonWon-Kyu ChoiChan-Soo ShinGil-Young ChoiCheol-Sig Pyo
    • G08B25/10H01Q21/00
    • H01P5/18
    • Provided is an antenna system with high isolation. The high-isolation antenna has transmission ports of a transmission antenna and reception ports of a reception antenna highly isolated from each other by using quadrature hybrid couplers. The antenna system includes: a transmission antenna having two feed points for transmitting signals; a reception antenna having two feed points for receiving signals; a transmission hybrid coupler which is connected to the two feed points of the transmission antenna and transmits transmission signals which have a phase difference of 90° with each other; and a reception hybrid coupler which is connected to the two feed points of the reception antenna and receives reception signals which have a phase difference of 90° with each other. The signals leaking from the two feed points of the transmission antenna to the two feed points of the reception antenna are offset.
    • 提供了具有高隔离度的天线系统。 高隔离天线具有通过使用正交混合耦合器彼此高度隔离的发送天线和接收天线的接收端口的传输端口。 天线系统包括:发射天线,具有用于发射信号的两个馈电点; 具有用于接收信号的两个馈送点的接收天线; 传输混合耦合器,其连接到发射天线的两个馈电点,并发射相位差为90°的发射信号; 以及接收混合耦合器,其连接到接收天线的两个馈电点,并接收彼此具有90°的相位差的接收信号。 从发送天线的两个馈电点泄漏到接收天线的两个馈电点的信号被偏移。