公开(公告)号：US3925739A

公开(公告)日：1975-12-09

申请号：US51115074

申请日：1974-10-02

申请人： BENDIX CORP

发明人： BROWNELL DUDLEY C ,  JACKSON HAROLD W

IPC分类号： H03H7/09 ,  H03H7/10 ,  H03H7/14

CPC分类号： H03H7/1758 ,  H03H7/09 ,  H03H7/1708 ,  H03H7/1766

摘要： A radio frequency notch filter includes a transformer secondary winding connected in series with a transmission line. The transformer primary winding is arranged with a capacitor to be parallel resonant at the filter center frequency. A reactive means is also connected in electrical shunt with the transmission line which responds at the notch frequency to drain current then traversing the secondary winding.

摘要翻译： 射频陷波滤波器包括与传输线串联连接的变压器次级绕组。 变压器初级绕组布置有电容器，以滤波器中心频率并联谐振。 电流分路还与传输线路连接，该传输线路以陷波频率响应，以漏极电流然后穿过次级绕组。

公开(公告)号：US3908176A

公开(公告)日：1975-09-23

申请号：US44895174

申请日：1974-03-07

申请人： NEDERLANDEN STAAT

发明人： DE BOER EDWARD-TJITZE ONNO

IPC分类号： H01R9/05 ,  H01G4/40 ,  H01R11/00 ,  H01R11/11 ,  H01R13/646 ,  H01R13/719 ,  H01R31/02 ,  H03H1/00 ,  H03H7/02 ,  H01P3/06 ,  H01P5/02 ,  H03H7/14

CPC分类号： H03H1/0007

摘要： Two tubular capacitors which are of substantially the same diameter and are axially spaced with respect to each other, form part of a coaxial transmission line in such a way that one of the capacitors is connected to the inner conductor of the coaxial line, which inner conductor extends through the second capacitor, and the outer conductor of the coaxial line narrows conically between the two capacitors to the diameter of the second capacitor and then widens conically after the second capacitor.

摘要翻译： 两根管状电容器基本上相同的直径并相对于彼此轴向隔开，形成同轴传输线的一部分，使得一个电容器连接到同轴线的内导体，该内导体 延伸穿过第二电容器，并且同轴线的外导体在两个电容器之间锥形地缩小到第二电容器的直径，然后在第二电容器之后扩大锥形。

公开(公告)号：US3854659A

公开(公告)日：1974-12-17

申请号：US38399273

申请日：1973-07-30

申请人： SIEMENS AG

发明人： BUCHERL E ,  PETERS W

IPC分类号： H03H7/01 ,  H03H7/38 ,  H04B3/14 ,  H03H7/10 ,  H03H7/14

CPC分类号： H04B3/145

摘要： A frequency selective circuit arrangement having a resistor network connected to a supply line and feeding an auxiliary four terminal filter network whose attenuation characteristic curve is variable under the control of means for varying the terminating resistance of said four terminal network, the impedance of the elements having a predetermined frequency position for the peaks of the attenuation characteristic of the arrangement.

摘要翻译： 一种频率选择电路装置，其具有连接到电源线的电阻网络，并且馈送辅助四端子滤波器网络，其衰减特性曲线在用于改变所述四个终端网络的终端电阻的装置的控制下可变，所述元件的阻抗具有 用于布置的衰减特性的峰值的预定频率位置。

公开(公告)号：US3842374A

公开(公告)日：1974-10-15

申请号：US33956973

申请日：1973-03-09

申请人： ALLEN BRADLEY CO

发明人： SCHLICKE H

IPC分类号： H01P1/16 ,  H03H1/00 ,  H04B1/10 ,  H03H7/14

CPC分类号： H01P1/16 ,  H03H1/0007 ,  H04B1/1018

摘要： Feedthrough filters for bypassing high frequency interference signals away from a conductor carrying low frequency or direct current energy are shown. These filters employ a metal oxide type of varistor material as a dielectric between capacitor electrodes with a high dielectric constant Epsilon , and the non-linearity of current flow through the varistor material with respect to applied voltage varies by such an exponential factor that the filter functions in usual manner as a high frequency bypass for low energy interference, but as an ohmic current bypass for high energy interference regardless of frequency.

摘要翻译： 示出了用于绕过高频干扰信号的馈通滤波器远离携带低频或直流能量的导体。 这些滤波器采用金属氧化物类型的变阻器材料作为具有高介电常数ε的电容器电极之间的电介质，并且相对于施加的电压，通过非线性电阻材料的电流的非线性随着滤波器功能的指数因子而变化 以通常的方式作为用于低能量干扰的高频旁路，而是作为用于高能量干扰的欧姆电流旁路，而不管频率如何。

公开(公告)号：US3806838A

公开(公告)日：1974-04-23

申请号：US36962273

申请日：1973-06-13

申请人： NIPPON ELECTRIC CO

发明人： KITAZUME S

IPC分类号： H01P1/213 ,  H01P9/00 ,  H04B7/155 ,  H03H7/02 ,  H03H7/14 ,  H04J1/00

CPC分类号： H01P9/00

摘要： A branching filter network arrangement for use in microwave frequency division multiplex communications systems is disclosed. The network includes at least one branching filter having a center frequency higher than the highest frequency of the operating frequencies within the pass band and at least one branching filter having a center frequency lower than the lowest frequency of the operating frequencies within the pass band. As a result, primary delay distortion in the highest and lowest frequencies of the operating frequencies are eliminated, and only secondary delay distortion requires compensation which can be easily accomplished in the intermediate-frequency stage of the receiver.

摘要翻译： 公开了一种用于微波频分复用通信系统的分路滤波器网络装置。 该网络包括至少一个分频滤波器，其中心频率高于通带内的工作频率的最高频率，以及至少一个分频滤波器，其中心频率低于通带内的工作频率的最低频率。 结果，消除了工作频率的最高和最低频率中的主要延迟失真，并且仅次要延迟失真需要在接收机的中频级中容易地实现的补偿。

公开(公告)号：US3723918A

公开(公告)日：1973-03-27

申请号：US3723918D

申请日：1970-09-18

申请人： SIEMENS AG

发明人： KRAUSE H

IPC分类号： H03H7/01 ,  H03H9/00 ,  H03H9/54 ,  H04J1/04 ,  H04J1/08 ,  H03H7/14

CPC分类号： H03H7/19 ,  H03H7/0115 ,  H03H7/075 ,  H03H7/175 ,  H03H7/1758 ,  H03H7/1766 ,  H03H7/1775 ,  H03H7/1791 ,  H03H9/0095 ,  H03H9/542 ,  H03H2007/013 ,  H04J1/045 ,  H04J1/08

摘要： A network consisting of an all-pass circuit which consists of two equal frequency separating networks whose partial filters have even characteristic functions reciprocal to one another of the degree 2n (n 1, 2, 3 . . . ) and in which between each two equal partial filters there are connected four-pole circuits which are dimensioned in such a way that the electrical properties of the entire network, except for one additional phase, agree with the prescribed electrical properties of the interposed four-pole circuits. The interposed four-pole circuits are constructed with respect to their transmission properties as equal all-pass or low-pass sections of which the one lying in the band-pass or low-pass path, is rendered a band stop circuit by quartz elements.

摘要翻译： 由全通电路组成的网络，其由两个相等的频率分离网络组成，其部分滤波器具有彼此具有彼此相交的2n（n = 1,2,3等）的特征函数，并且其中每两个 相等的部分滤波器连接四极电路，其尺寸设计使得除了一个附加相位之外，整个网络的电性能与插入的四极电路的规定的电性能一致。 插入的四极电路相对于它们的透射特性被构造为等于通过或低通路径的全通或低通部分被石英元件制成带阻的电路。

公开(公告)号：US3573674A

公开(公告)日：1971-04-06

申请号：US3573674D

申请日：1969-04-30

申请人： US NAVY

发明人： WEHNER DONALD R

IPC分类号： H01P1/213 ,  H03H7/14 ,  H01P3/08

CPC分类号： H01P1/2135

摘要： A multiple section microwave filter capable of being accurately tailored to special frequency response requirements over wide bandwidths in disclosed. The tailored response filter consists of an array of cascaded traveling-wave directional filters. Each filter section couples power out of a through transmission line into suitable microwave terminations. Due to the directional characteristics of traveling-wave directional filters, there is no interaction between sections. Thus the frequency response of the array is the product of the transfer functions of the individual sections. The coupling constants and the center frequencies of individual filter sections are tailored, i.e., synthesized, to result in a set of individual transfer functions which will produce the desired overall response. The tailored response filter can be used in wide bandwidth microwave systems for phase and amplitude weighting and for equalization functions.

公开(公告)号：US3538805A

公开(公告)日：1970-11-10

申请号：US3538805D

申请日：1968-06-18

申请人： BALDWIN CO D H

发明人： UETRECHT DALE M

IPC分类号： G10H1/12 ,  H03H11/12 ,  G10H1/06 ,  H03H7/14

CPC分类号： H03H11/1291 ,  G10H1/12

公开(公告)号：US4187479A

公开(公告)日：1980-02-05

申请号：US860098

申请日：1977-12-13

申请人： Kohei Ishizuka ,  Yoshitaka Takasaki ,  Yasuhiro Kita ,  Yoshinori Nagoya ,  Takeo Kusama

发明人： Kohei Ishizuka ,  Yoshitaka Takasaki ,  Yasuhiro Kita ,  Yoshinori Nagoya ,  Takeo Kusama

IPC分类号： H03H11/04 ,  H04B3/14 ,  H03H7/14

CPC分类号： H04B3/145

摘要： A variable equalizer is provided which, using a single variable resistor, can make compensations in both the directions of the gain side, and the loss side and can set a reference gain as desired.An input signal to be equalized is received as an antiphase input signal of a differential amplifier, an output signal which has been equalized is fed back to the antiphase input signal, and a difference signal between an in-phase input signal and the antiphase input signal is delivered as an output. A resistor is connected between an input terminal and ground, first and second impedance circuits and a variable resistor are connected between an intermediate point of the first-mentioned resistor and ground in the order mentioned, and a voltage at the junction point between the first and second impedance circuits is used as the in-phase input signal.

摘要翻译： 提供了可变均衡器，其使用单个可变电阻器可以在增益侧和损耗侧的两个方向上进行补偿，并且可以根据需要设置参考增益。 接收待均衡的输入信号作为差分放大器的反相输入信号，将均衡的输出信号反馈到反相输入信号，同相输入信号和反相输入信号之间的差分信号 作为输出交付。 电阻器连接在输入端子和地之间，第一和第二阻抗电路和可变电阻器以所述顺序连接在第一个提到的电阻器的中间点和接地之间，并且在第一和第二阻抗电路之间的连接点处的电压 第二阻抗电路用作同相输入信号。

公开(公告)号：US4139829A

公开(公告)日：1979-02-13

申请号：US808476

申请日：1977-06-21

申请人： Takao Isago ,  Tomokazu Komazaki

发明人： Takao Isago ,  Tomokazu Komazaki

IPC分类号： H03H7/01 ,  H04B3/14 ,  H03H7/14

CPC分类号： H04B3/141

摘要： In a band division type equalizer having a plurality of equalizer sections, the adjustment of each of the equalizer sections is accomplished through measurement of characteristics of a transmission means to be equalized and calculation of the difference of the measured characteristics and the desired characteristics. Since all of the equalizer sections are adjusted at the same time according to the result of the calculation, the adjustment does not suffer from interaction among the sections. An adjustable variable, for instance, a variable resistor for each section is mounted in a single setting unit separable from the rest of the equalizer circuit. Thus, after completely adjusting the setting unit, the setting unit is connected to the rest of the equalizer sections, and then the desired delay characteristic can be obtained. The equalizer section is for instance a Moschytz type delay circuit.

摘要翻译： 在具有多个均衡器部分的带分割型均衡器中，每个均衡器部分的调整通过测量均衡的传输装置的特性以及测量特性和期望特性的差异的计算来实现。 由于根据计算结果同时调整所有均衡器部分，所以调整不会受到部分之间的交互的影响。 可调整的变量，例如每个部分的可变电阻器安装在与均衡器电路的其余部分分离的单个设置单元中。 因此，在完全调整设定单位之后，设定单元连接到其余的均衡器部分，然后可以获得期望的延迟特性。 均衡器部分是例如Moschytz型延迟电路。