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    • 9. 发明公开
    • Capacitor element
    • Kondensator。
    • EP0044742A2
    • 1982-01-27
    • EP81303331.3
    • 1981-07-21
    • FUJITSU LIMITED
    • Hirano, YutakaHayakawa, MasahiroAshida, HideoIkuta, Hideki
    • H01G4/06H01G4/30
    • H01G2/00H01G4/06
    • The invention is an improvement of a capacitor used in microwave transistor circuits. The capacitor comprises a dielectric material layer and conduction layers covering both sides of the surfaces of the dielectric material layer. A plurality of points (P 1 -P 10 ) on the surface of one of the conduction layers are connected by conduction wires (L I -L 5 ) preferably of gold. Each of the conduction wires has a length less than λ 0 /2 , where λ 0 is the minimum wavelength of electric signals applied to the capacitor element, and ε r is the dielectric constant of the dielectric material layer. The middle portion of each wire is separated from the surface of the conduction layer. The conduction wires prevent the capacitor element from becoming extremely inductive even when the frequency is high.
    • 本发明是微波晶体管电路中使用的电容器的改进。 电容器包括介电材料层和覆盖电介质材料层表面的两侧的导电层。 一个导电层的表面上的多个点(P1-P10)通过优选为金的导线(L1-L5)连接。 每个导线的长度小于λ0/2 2ROOTεr,其中λ0是施加到电容器元件的电信号的最小波长,εr是介电材料层的介电常数。 每根导线的中间部分与导电层的表面分离。 导线防止电容器元件在频率高时变得极度感应。