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    • 3. 发明授权
    • Impedance matching device
    • 阻抗匹配装置
    • US6100773A
    • 2000-08-08
    • US157245
    • 1998-09-18
    • Masumi NakamichiYoshiyuki Masuda
    • Masumi NakamichiYoshiyuki Masuda
    • H01G7/06H01L27/01H03H7/38
    • H03H7/38
    • An impedance matching device includes a variable capacitor constituted by a non-linear dielectric thin film and an upper electrode disposed on a lower electrode formed on a substrate. The non-linear dielectric thin film is formed by a deposition, screen-printing, electroplating, or other technique, and changes its relative dielectric constant according to applied voltage. Therefore, the capacity of the variable capacitor is controlled and the impedance is matched, by simply controlling the applied voltage across the non-linear dielectric thin film. Consequently, the arrangement makes it possible to cut down the impedance matching device in size and cost, compared to an arrangement incorporating a capacitor and a coil for adjustment, effects a much simpler matching operation, and facilitates a manufacturing process.
    • 阻抗匹配装置包括由非线性电介质薄膜构成的可变电容器和设置在形成于基板上的下电极上的上电极。 非线性电介质薄膜通过沉积,丝网印刷,电镀或其它技术形成,并根据施加的电压改变其相对介电常数。 因此,通过简单地控制跨越非线性电介质薄膜的施加电压来控制可变电容器的容量并且阻抗匹配。 因此,与包括电容器和用于调整的线圈的布置相比,该布置使得可以减小尺寸和成本的阻抗匹配装置,实现了更简单的匹配操作,并且便于制造过程。
    • 6. 发明授权
    • Wave absorber and manufacturing method of wave absorber
    • 波浪吸收器及其制造方法
    • US07864095B2
    • 2011-01-04
    • US10598345
    • 2005-02-25
    • Yoshiyuki MasudaNoboru OtaniHisamatsu Nakano
    • Yoshiyuki MasudaNoboru OtaniHisamatsu Nakano
    • H01Q17/00
    • H05K9/0083H01Q1/38H01Q1/44H01Q15/00H01Q15/0013H01Q17/00H05K9/0086H05K9/0088Y10T29/49126
    • The problem of the present invention is to offer a wave absorber that has reflection attenuation capability sufficient to enable prevention of communication disturbances due to reflection and the like of EM waves, that enables greater thinness and lighter weight, and that has wide-band attenuation properties, as well as a manufacturing method of the wave absorber. The wave absorber of the present invention has a structure which sequentially laminates a grid-like conductor layer composed of an electric conductor, a first dielectric layer, a high-resistance conductor layer having a surface resistivity within a prescribed range, a second dielectric layer, and a pattern layer having multiple patterns composed of an electric conductor, wherein each pattern in said pattern layer differs in either or both of size and form relative to another adjacent pattern.
    • 本发明的问题是提供一种具有足够的反射衰减能力的波吸收体,能够防止由于EM波的反射等导致的通信干扰,从而能够实现更大的薄度和更轻的重量,并且具有宽带衰减特性 ,以及波吸收体的制造方法。 本发明的波吸收体具有以下结构:依次层叠由导电体构成的格子状导体层,第一电介质层,表面电阻率在规定范围内的高电阻导体层,第二电介质层, 以及具有由导电体组成的多个图案的图案层,其中所述图案层中的每个图案相对于另一相邻图案的大小和形状都有一个或两个不同。