会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 36. 发明申请
    • THIN FILM TRANSISTOR
    • 薄膜晶体管
    • US20120097948A1
    • 2012-04-26
    • US13193463
    • 2011-07-28
    • Jeong-Hwan KimKi-Hong KimYong-Jae JangJung-Hyun Kim
    • Jeong-Hwan KimKi-Hong KimYong-Jae JangJung-Hyun Kim
    • H01L29/786
    • H01L29/78621H01L27/0705H01L29/41733H01L29/42384
    • A thin film transistor includes a substrate, a gate electrode on the substrate, a gate insulating layer covering the gate electrode, a first semiconductor layer and a second semiconductor layer overlapping the gate electrode on the gate insulating layer and separated from each other, a first source electrode and a first drain electrode on the first semiconductor layer and on opposite sides of the gate electrode, and a second source electrode and a second drain electrode on the second semiconductor layer and on opposite sides of the gate electrode, wherein the first source electrode is coupled to the second source electrode through a source connection overlapping the gate electrode, and the first drain electrode is coupled to the second drain electrode, such that the on current and off current characteristics of the thin film transistor may be constantly maintained regardless of alignment error.
    • 薄膜晶体管包括衬底,衬底上的栅电极,覆盖栅电极的栅极绝缘层,与栅极绝缘层上的栅电极重叠并彼此分离的第一半导体层和第二半导体层,第一 源电极和第一漏电极,以及在第二半导体层上和栅电极的相对侧上的第二源电极和第二漏电极,其中第一源电极 通过与栅电极重叠的源极连接而耦合到第二源电极,并且第一漏电极耦合到第二漏电极,使得薄膜晶体管的导通电流和截止电流特性可以恒定地保持,而不管对准 错误。
    • 37. 发明申请
    • IMPEDANCE MATCHING CIRCUIT CAPABLE OF EFFICIENTLY ISOLATING PATHS FOR MULTI-BAND POWER AMPLIFIER
    • 具有多功能放大器高效隔离功能的阻抗匹配电路
    • US20110234316A1
    • 2011-09-29
    • US12732409
    • 2010-03-26
    • Jung Hyun KimUn Ha KimSang Hwa JungYoung Kwon
    • Jung Hyun KimUn Ha KimSang Hwa JungYoung Kwon
    • H03F1/08
    • H03F1/56
    • In accordance with a representative embodiment, an impedance matching circuit for use at an output stage of a power amplifier is disclosed. The impedance matching circuit comprises: an input port for receiving a frequency band signal; and a plurality of paths, each path being allocated with a principal band signal to be transmitted therethrough and including a path on-off network and a fixed-value impedance matching network. Depending on a type of the received frequency band signal, the path on-off network is configured to activate a selected one of the plurality of paths by rendering an input impedance of the selected path to have a lower absolute magnitude so that the signal is transmitted therethrough, and to deactivate the remaining paths of the plurality of paths by rendering the input impedance thereof to have a higher absolute magnitude so that the signal is not transmitted therethrough. The fixed-value impedance matching network matches a load impedance of the output port of each path to the input impedance thereof, thereby rendering the input impedance thereof to have a prescribed reference value with respect to the principal band signal when said path is activated by the path on-off network.
    • 根据代表性实施例,公开了一种在功率放大器的输出级使用的阻抗匹配电路。 阻抗匹配电路包括:用于接收频带信号的输入端口; 和多个路径,每个路径被分配有要通过其传输的主频带信号,并且包括路径开关网络和固定值阻抗匹配网络。 根据所接收的频带信号的类型,路径开关网络被配置为通过使所选择的路径的输入阻抗具有较低的绝对量值来激活所述多个路径中的所选择的一个路径,使得发送所述信号 并且通过使其输入阻抗具有更高的绝对量值来使多个路径的剩余路径去激活,使得该信号不通过其传输。 固定值阻抗匹配网络将每个路径的输出端口的负载阻抗匹配到其输入阻抗,从而当所述路径被激活时,其输入阻抗相对于主频带信号具有规定的参考值 路径开关网络。