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    • 1. 发明申请
    • HIGH FREQUENCY SECOND HARMONIC OSCILLATOR
    • 高频二次谐波振荡器
    • US20110175686A1
    • 2011-07-21
    • US12911764
    • 2010-10-26
    • Shinsuke WatanabeYoshihiro TsukaharaKo KanayaShinichi Miwa
    • Shinsuke WatanabeYoshihiro TsukaharaKo KanayaShinichi Miwa
    • H03B5/12
    • H03B5/1847H03D2200/0086
    • A high frequency second harmonic oscillator includes a transistor, a first signal line connected at a first end to the base or gate of the transistor, a first shunt capacitor connected at a first end to a second end of the first signal line and at a second end to ground, a second signal line connected at a first end to the collector or drain of the transistor, a second shunt capacitor connected at a first end to a second end of the second signal line and at a second end to ground, and a high capacitance capacitor connected between the first signal line and the second signal line. The first signal line has a length equal to an odd integer multiple of one quarter of the wavelength of a fundamental signal, plus or minus one-sixteenth of the wavelength of the fundamental signal.
    • 高频二次谐波振荡器包括晶体管,在第一端连接到晶体管的基极或栅极的第一信号线,在第一端连接到第一信号线的第二端的第一并联电容器, 在第一端连接到晶体管的集电极或漏极的第二信号线,在第一端连接到第二信号线的第二端并在第二端连接到地的第二并联电容器,以及 连接在第一信号线和第二信号线之间的高容量电容器。 第一信号线具有等于基本信号波长四分之一的奇整数倍的长度,加上或减去基波信号波长的十六分之一。
    • 8. 发明申请
    • SEMICONDUCTOR SWITCH, TRANSCEIVER, TRANSMITTER, AND RECEIVER
    • 半导体开关,收发器,发射器和接收器
    • US20110234333A1
    • 2011-09-29
    • US12917520
    • 2010-11-02
    • Yoshihiro Tsukahara
    • Yoshihiro Tsukahara
    • H01P1/10
    • H03K17/002H03K17/693H04B1/48
    • A semiconductor switch includes a main line, branch lines branching from the main line at the same branch point, switching devices shunt-connected between one of the branch lines and ground and operated so that the one of the branch lines is connected to and disconnected from ground, a main terminal connected to an end of the main line, and branch terminals connected to an end of one of the branch lines. The impedance of one of the branch lines, as seen from the branch point, is conjugately matched to the combined impedance of the main line and the rest of the branch lines, as seen from the branch point, the one of the branch lines transmitting an RF signal, and the rest of the branch lines blocking the RF signal.
    • 半导体开关包括主线,在相同分支点处从主线分支的分支线,分支连接在一条分支线之间并接地并被操作的开关装置,使得一条支线连接到和断开 接地,连接到主线的端部的主端子和连接到一条支线的端部的分支端子。 从分支点看,分支线之一的阻抗与主线和其余分支线的组合阻抗共轭匹配,如从分支点所见,分支线中的一条发送 RF信号,其余的分支线阻挡RF信号。
    • 9. 发明申请
    • SEMICONDUCTOR SWITCH, SEMICONDUCTOR SWITCH MMIC, CHANGEOVER SWITCH RF MODULE, POWER RESISTANCE SWITCH RF MODULE, AND TRANSMITTER AND RECEIVER MODULE
    • 半导体开关,半导体开关MMIC,更换开关RF模块,电源开关RF模块,发射器和接收器模块
    • US20100225376A1
    • 2010-09-09
    • US12613557
    • 2009-11-06
    • Yoshihiro Tsukahara
    • Yoshihiro Tsukahara
    • H03K17/00
    • H01P1/15
    • A semiconductor switch for switching a signal according to input power and maintaining performance of a receiver system with a simple configuration. The semiconductor switch comprises: a first FET connected between a first input/output terminal and a second input/output terminal; a first transmission line connected between the first input/output terminal and a third input/output terminal; a second transmission line parallel to the first transmission line; and a detector circuit connected to one end of the second transmission line, for outputting a DC voltage corresponding to power level of the high frequency signal, branched by the second transmission line. The first FET is controlled and switched according to an output from the detector circuit to switch between a route from the first input/output terminal to the second input/output terminal and a route from the first input/output terminal to the third input/output terminal.
    • 一种用于根据输入功率切换信号并且以简单配置维持接收机系统的性能的半导体开关。 半导体开关包括:连接在第一输入/输出端子和第二输入/输出端子之间的第一FET; 连接在第一输入/输出端和第三输入/输出端之间的第一传输线; 平行于第一传输线的第二传输线; 以及检测器电路,其连接到所述第二传输线的一端,用于输出与由所述第二传输线分支的所述高频信号的功率电平相对应的DC电压。 第一FET根据检测器电路的输出被控制和切换,以在从第一输入/输出端子到第二输入/输出端子的路径之间切换,以及从第一输入/输出端子到第三输入/输出的路线 终奌站。
    • 10. 发明授权
    • Semiconductor device
    • 半导体器件
    • US06765454B2
    • 2004-07-20
    • US10270503
    • 2002-10-16
    • Yoshihiro Tsukahara
    • Yoshihiro Tsukahara
    • H01P110
    • H01P1/15G01S7/034
    • A semiconductor device includes a switching element, for example, a Schottky barrier diode, which controls transmission/cutoff of a signal transmitted between two portions of a transmission line. An anode electrode of the switching element is interposed between the two portions of the transmission line and the longitudinal direction of the anode electrode is aligned with the longitudinal direction of the transmission line. A cathode electrode of the switching element is disposed on at least one of the widthwise sides of the anode electrode, and is connected to ground.
    • 半导体器件包括开关元件,例如肖特基势垒二极管,其控制在传输线的两个部分之间传输的信号的传输/切断。 开关元件的阳极设置在传输线的两个部分之间,并且阳极电极的纵向方向与传输线的纵向对准。 开关元件的阴极设置在阳极电极的宽度方向的至少一个上,并且与地连接。