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    • 2. 发明公开
    • ANALOG BANDPASS FILTER
    • 模拟分析仪
    • EP1453196A1
    • 2004-09-01
    • EP02785442.1
    • 2002-11-12
    • Diseno de Sistemas en Silicio S.A.
    • GONZALEZ MORENO, José LuisPOVEDA LERMA, AntonioVIDAL ROS, José Maria
    • H03H7/075H03H7/03
    • H03H7/1775H03H7/0161H03H7/03H03H7/06H03H7/075H03H7/1783
    • The invention relates to an analog bandpass filter comprising a plurality of LC ladder circuits (1), the response from which is determined by a passband (fpi, fps) and a rejection band (with limits fri and frs). The inventive filter is characterised in that a series of tank circuits (5) is disposed in parallel to the filter charge, the resonance frequencies of said tank circuits coinciding with the lower (fpi) and upper (fps) cut-off frequency of the pass-band of the filter. Furthermore, the filter comprises a control resistor (Rc) which regulates the effect of the tank circuits on the filter. Said structure can be used to compensate the effect of the real limitations of the LC components (1) in order to adjust the response from the analog bandpass filter created with said components to the response from the ideal bandpass filter.
    • 本发明涉及一种包括多个LC梯形电路(1)的模拟带通滤波器,其响应由通带(fpi,fps)和拒绝频带(具有限制fr和frs)确定。 本发明的滤波器的特征在于,一系列储能电路(5)平行于过滤器电荷设置,所述储罐回路的谐振频率与通过的下(fpi)和上(fps)截止频率重合 过滤器的带。 此外,滤波器包括控制电阻器(Rc),其调节储能电路对滤波器的影响。 所述结构可用于补偿LC组件(1)的实际限制的影响,以便将从所述组件产生的模拟带通滤波器的响应调整到来自理想带通滤波器的响应。
    • 4. 发明公开
    • Laminated lattice balun
    • Laminierter格子 - 巴伦
    • EP2683081A1
    • 2014-01-08
    • EP12175318.0
    • 2012-07-06
    • TDK Corporation
    • Endo, Makoto
    • H03H7/01H03H7/03H03H7/42
    • H03H7/0123H03H7/03H03H7/422
    • A laminated structural type balun 1 includes a low pass filter 6 that is provided between an unbalanced terminal 2 inputting and outputting unbalanced signals and a first balanced terminal 3A inputting and outputting balanced signals and includes a first coil 4A and a first capacitor 5A; and a high pass filter 7 that is provided between the unbalanced terminal 2 and a second balanced terminal 3B inputting and outputting balanced signals and includes a second capacitor 5B and a second coil 4B. The first capacitor 5A and the second capacitor 5B are arranged in a different area from the first coil 4A and the second coil 4B when viewed from a laminated direction and may be arranged between the first coil 4A and the second coil 4B when viewed from a laminated direction.
    • 叠层结构型平衡 - 不平衡转换器1包括设置在不平衡端子2输入和输出不平衡信号之间的低通滤波器6和输入和输出平衡信号的第一平衡端子3A,并包括第一线圈4A和第一电容器5A; 以及设置在不平衡端子2和输入和输出平衡信号的第二平衡端子3B之间并包括第二电容器5B和第二线圈4B的高通滤波器7。 当从层叠方向观察时,第一电容器5A和第二电容器5B布置在与第一线圈4A和第二线圈4B不同的区域中,并且当从层叠的方向观察时可以布置在第一线圈4A和第二线圈4B之间 方向。