Trap circuit with two variable inductors
    1.
    发明公开
    Trap circuit with two variable inductors 失效
    过滤装置具有两个可调整的感应线圈。

    公开(公告)号:EP0203343A2

    公开(公告)日:1986-12-03

    申请号:EP86105314.8

    申请日:1986-04-17

    IPC分类号: H03H7/01 H03H7/07

    摘要: In a bridge T type trap circuit having CR delta :onnection circuit and a varible LC tank circuit, the CR delta connection circuit is connected to the LC ank circuit via a variable inductor (19; 31, 33; 40). In one embodiment, a capacitor (18) is coupled with he variable inductor (19; 31, 33) to form another LC ank circuit. In another embodiment, a variable inductor (39) used in the first-mentioned LC tank circuit has a tap which is grounded. Impedance values of the first-mentioned LC tank circuit and the variable nductor (40) are ajdusted so that absolute values of eal and imaginary parts thereof have given relationship. A resistor (22)of the CR delta connection circuit s used in common in a double-trap structure having wo CR delta conection circuits and two series cir- :uits each having two tank circuits.

    Trap circuit with two variable inductors
    2.
    发明公开
    Trap circuit with two variable inductors 失效
    具有两个可变电感器的TRAP电路

    公开(公告)号:EP0203343A3

    公开(公告)日:1988-06-01

    申请号:EP86105314

    申请日:1986-04-17

    IPC分类号: H03H07/01 H03H07/07

    摘要: In a bridge T type trap circuit having CR delta :onnection circuit and a varible LC tank circuit, the CR delta connection circuit is connected to the LC ank circuit via a variable inductor (19; 31, 33; 40). In one embodiment, a capacitor (18) is coupled with he variable inductor (19; 31, 33) to form another LC ank circuit. In another embodiment, a variable inductor (39) used in the first-mentioned LC tank circuit has a tap which is grounded. Impedance values of the first-mentioned LC tank circuit and the variable nductor (40) are ajdusted so that absolute values of eal and imaginary parts thereof have given relationship. A resistor (22)of the CR delta connection circuit s used in common in a double-trap structure having wo CR delta conection circuits and two series cir- :uits each having two tank circuits.

    Band-pass filter having multilayered coil structures
    3.
    发明公开
    Band-pass filter having multilayered coil structures 失效
    Bandpassfilter mit mehrschichtiger Spulenstruktur。

    公开(公告)号:EP0062493A2

    公开(公告)日:1982-10-13

    申请号:EP82301693.6

    申请日:1982-03-31

    IPC分类号: H03H7/09 H01P7/00

    CPC分类号: H03H7/09 H01P7/005

    摘要: A band-pass filter comprising a shielded housing (13) having two chambers in which two quarter-wave resonators (9a, 9b) are disposed respectively for coupling with input energy and for delivering output energy. Also mounted in these chambers are two parallel-circuit resonators (9c, 9d) for coupling with the quarter-wave resonators respectively. Each of the resonators (9a, 9b, 9c, 9d) comprises a multilayered coil structure on a finned bobbin (11a, 11b, 11c, 11d) juxtaposed on a common insulative substrate (12) so that its coil portions (11a', 11b', 11c', 11d') are separately wound on adjacent fins (10) of the bobbin. Each of the quarter-wave resonators (9a, 9b) has one end being short-circuited and the other end being open-circuited. Each of the parallel-circuit resonators includes a capacitor (21a, 21b) to form a parallel resonance circuit and has one end coupled to one end of the other parallel-circuit resonator at a point outside of the housing. Two auxiliary coils (22c, 22d) are inductively coupled respectively with the parallel-circuit resonators, one end of each auxiliary coil being connected to the housing and the other ends being coupled together to an external circuit.

    摘要翻译: 一种带通滤波器,包括具有两个室的屏蔽壳体(13),其中分别设置有两个四分之一波长的谐振器(9a,9b),用于与输入能量耦合并输出输出能量。 还安装在这些室中的是两个并联电路谐振器(9c,9d),用于分别与四分之一波长的谐振器耦合。 每个谐振器(9a,9b,9c,9d)包括并置在公共绝缘基板(12)上的翅片式绕线管(11a,11b,11c,11d)上的多层线圈结构,使得其线圈部分(11a min,11b min,11c min,11d min)分别缠绕在线轴的相邻翅片(10)上。 每个四分之一波长的谐振器(9a,9b)的一端短路,另一端开路。 每个并联电路谐振器包括形成并联谐振电路的电容器(21a,21b),并且其一端在壳体外部的点处耦合到另一个并联电路谐振器的一端。 两个辅助线圈(22c,22d)分别与并联电路谐振器感应耦合,每个辅助线圈的一端连接到壳体,另一端耦合在一起连接到外部电路。