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    • 1. 发明申请
    • Microwave tunable device having coplanar waveguide structure
    • 具有共面波导结构的微波可调谐器件
    • US20050116792A1
    • 2005-06-02
    • US10817822
    • 2004-04-06
    • Seung MoonHan RyuMin KwakYoung KimSang LeeSu Lee
    • Seung MoonHan RyuMin KwakYoung KimSang LeeSu Lee
    • H01P5/04H01P1/18H01P3/00H01P3/08
    • H01P3/003H01P1/181
    • Provided is a microwave tunable device having a coplanar waveguide structure, comprising a substrate, a ferroelectric/paraelectric thin film, a first transmission line, and second transmission lines, wherein a transmission line portion is formed with a constant width and an input/output portion is formed with a width larger than that of the transmission line portion in the first transmission line, and a transmission line portion is formed with a constant width and an input/output portion is formed with a narrower width than that of the transmission line portion in the second transmission line, whereby it is possible to minimize impedance difference with a connection line, a reflection loss, and an insertion loss, by controlling the width of the first transmission line and gap between the first and the second transmission lines, in the input/output portion.
    • 本发明提供一种具有共面波导结构的微波可调谐装置,包括基板,铁电/顺电薄膜,第一传输线和第二传输线,其中传输线部分形成为恒定宽度,输入/输出部分 形成为具有比第一传输线中的传输线部分的宽度大的宽度,并且传输线部分形成为具有恒定的宽度,并且输入/输出部分形成为具有比传输线部分的宽度更窄的宽度 第二传输线,通过在输入端控制第一传输线的宽度和第一和第二传输线之间的间隙,可以使与连接线的阻抗差,反射损耗和插入损耗最小化 /输出部分。