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    • 2. 发明申请
    • LEAKAGE POWER REDUCTION APPARATUS
    • 泄漏功率降低装置
    • US20080279122A1
    • 2008-11-13
    • US12114218
    • 2008-05-02
    • Atsushi FUKUDAHiroshi OKAZAKIShoichi NARAHASHI
    • Atsushi FUKUDAHiroshi OKAZAKIShoichi NARAHASHI
    • H04L5/14
    • H04B1/525
    • A circulator extracts a transmission signal sent from a transmitter to antenna via the circulator and a duplexer, reflected by an antenna, and returned via the duplexer to the transmitter side. The amplitude and phase of the extracted signal are adjusted by an amplitude-and-phase adjuster to generate an offset signal having the same amplitude and the opposite phase with respect to a leaking transmission signal included in a signal output from a third terminal of the duplexer when combined by a combiner. The offset signal is combined in the combiner with the leaking transmission signal included in the signal output from the third terminal of the duplexer to suppress the leaking transmission signal.
    • 循环器通过循环器和双工器从天线发送到天线的天线反射并通过双工器返回到发射机侧。 所提取的信号的振幅和相位由幅度和相位调整器调整,以产生相对于从双工器的第三端输出的信号中包含的泄漏传输信号具有相同幅度和相反相位的偏移信号 当由组合器组合时。 偏移信号在组合器中与包含在从双工器的第三端子输出的信号中的泄漏传输信号组合以抑制泄露的传输信号。
    • 3. 发明申请
    • BIAS CIRCUIT
    • 偏置电路
    • US20080100383A1
    • 2008-05-01
    • US11924027
    • 2007-10-25
    • Atsushi FUKUDAHiroshi OKAZAKIShoichi NARAHASHI
    • Atsushi FUKUDAHiroshi OKAZAKIShoichi NARAHASHI
    • H03F3/04
    • H03F3/189
    • A bias circuit 100 comprises: a first reactance means 2 connected to an AC circuit; a second reactance means 3 connected to the first reactance means 2; a switch 7 connected to a connection point 210 between them; a third reactance means 8 connected to the switch 7; a capacitive means 4 connected to the second reactance means 3; and a DC circuit 5 connected to a connection point 220between the second reactance means 3 and the capacitive means 4; wherein the connection point 220 is grounded in terms of alternating current. The connection point 210 is at a position such that impedance as viewed from the connection point 210 toward the capacitive means 4 is sufficiently large at a second frequency different from a first frequency. Impedance as viewed from a bias point 800 toward the bias circuit is sufficiently large at any of the frequencies.
    • 偏置电路100包括:连接到AC电路的第一电抗装置2; 连接到第一电抗装置2的第二电抗装置3; 连接到它们之间的连接点210的开关7; 连接到开关7的第三电抗装置8; 连接到第二电抗装置3的电容装置4; 以及连接到第二电抗装置3和电容装置4之间的连接点220的DC电路5; 其中连接点220以交流电接地。 连接点210处于使得从连接点210朝向电容装置4观察的阻抗在不同于第一频率的第二频率下足够大的位置。 从偏置点800朝向偏置电路观察的阻抗在任何频率处都足够大。
    • 5. 发明申请
    • NON-RECIPROCAL CIRCUIT DEVICE
    • 非接口电路设备
    • US20090206942A1
    • 2009-08-20
    • US12372164
    • 2009-02-17
    • Takayuki FURUTAHiroshi OKAZAKIShoichi NARAHASHI
    • Takayuki FURUTAHiroshi OKAZAKIShoichi NARAHASHI
    • H01P1/38
    • H01P1/383
    • A non-reciprocal circuit device comprising a magnetic plate F1; center conductors L1, L2, and L3 that are mutually insulated and disposed so as to intersect on magnetic plate F1; a plane conductor P1 that is disposed facing the center conductors with magnetic plate F1 placed therebetween, the plane conductor being connected to first ends of all the center conductors; matching capacitors C1 to C3 that have first ends grounded electrically and second ends connected to second ends of the center conductors; first matching circuits that have first ends connected to the second ends of the center conductors and second ends that are input/output ports; and a second matching circuit that has a first end connected to or integrated with the plane conductor and a second end grounded electrically.
    • 一种包括磁性板F1的不可逆电路装置; 中心导体L1,L2和L3相互绝缘并设置成与磁板F1相交; 平面导体P1,面对中心导体设置有放置在其间的磁性板F1,平面导体连接到所有中心导体的第一端; 匹配电容器C1至C3,其具有接地的第一端,第二端连接到中心导体的第二端; 第一匹配电路,其具有连接到作为输入/输出端口的中心导体和第二端的第二端的第一端; 以及第二匹配电路,其具有连接到所述平面导体或与所述平面导体一体化的第一端和被电接地的第二端。