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    • 1. 发明申请
    • VARIABLE CAPACITANCE MODULE AND MATCHING CIRCUIT MODULE
    • 可变电容模块和匹配电路模块
    • US20120062332A1
    • 2012-03-15
    • US13246989
    • 2011-09-28
    • Tomohiro NAGAIKen TONEGAWATetsuro HARADA
    • Tomohiro NAGAIKen TONEGAWATetsuro HARADA
    • H03H7/38H01G5/38
    • H01P1/203H01P1/2039H03H7/38
    • In a variable capacitance module capable of achieving necessary variable capacitance ranges, a variable capacitance circuit includes a variable capacitance element and fixed capacitance elements. A first variable capacitance element and a first fixed capacitance element are connected in series, and the series circuit thereof and a second fixed capacitance element are connected in parallel. Accordingly, with reference to the capacitance of the second fixed capacitance element, the range of the combined capacitance of the variable capacitance circuit is provided by a step size of capacitance based on the combined capacitance of the variable capacitance element and the first fixed capacitance element. The first and second fixed capacitance elements are defined by inner-layer flat-plate electrodes in a laminated substrate, and the variable capacitance element is defined by an MEMS element mounted on a top surface of the laminated substrate.
    • 在能够实现必要的可变电容范围的可变电容模块中,可变电容电路包括可变电容元件和固定电容元件。 第一可变电容元件和第一固定电容元件串联连接,其串联电路和第二固定电容元件并联连接。 因此,参考第二固定电容元件的电容,可变电容电路的组合电容的范围由基于可变电容元件和第一固定电容元件的组合电容的电容的步长提供。 第一和第二固定电容元件由层叠基板中的内层平板电极限定,并且可变电容元件由安装在层叠基板的顶表面上的MEMS元件限定。