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    • 3. 发明授权
    • Elastic wave duplexer
    • 弹性波双工器
    • US07619491B2
    • 2009-11-17
    • US12274411
    • 2008-11-20
    • Toshiaki TakataOsamu Yokokura
    • Toshiaki TakataOsamu Yokokura
    • H03H9/72H03H9/64
    • H03H9/0576H01L2224/16H01L2224/48227H01L2224/49171H01L2924/30111H03H9/725H01L2924/00
    • An elastic wave duplexer includes a transmission filter chip and a reception filter chip each defined by an elastic wave filter chip and flip-chip bonded to a laminated board. A coil-shaped line including coil-shaped line patterns is provided inside the laminated board. The coil-shaped line defines an impedance matching circuit. In plan view, the transmission filter chip is disposed on one side of a center line passing through the approximate center of the laminated board and extending between a first edge and a second edge, and the reception filter chip is disposed on the other side of the center line. The coil-shaped line is disposed on the side on which the reception filter chip is disposed.
    • 弹性波双工器包括传输滤波器芯片和接收滤波器芯片,每个接收滤波器芯片由弹性波滤波器芯片和倒装芯片结合到层压板上而定义。 在层叠板内设置有包括线圈状线状的线圈状线。 线圈形线路限定了阻抗匹配电路。 在平面图中,透射滤光片芯片配置在穿过层叠板的大致中心的中心线的一侧,并且在第一边缘和第二边缘之间延伸,并且接收滤波器芯片设置在 中心线。 线圈状线设置在配置有接收滤波器芯片的一侧。