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    Microwave transmission line of the symmetrical type and with two coplanar conductors
    101.
    发明授权
    Microwave transmission line of the symmetrical type and with two coplanar conductors 失效
    微波传输线为对称型，并带有两个共面导体

    公开(公告)号：US4871988A

    公开(公告)日：1989-10-03

    申请号：US205930

    申请日：1988-06-13

    Applicant: Luc Riviere ,  Alain Carenco

    Inventor： Luc Riviere ,  Alain Carenco

    IPC: H01P5/08 ,  H01P1/201 ,  H01P3/08

    CPC classification number: H01P1/201

    Abstract: This invention relates to an increase in the low longitudinal resonance frequencies of microwave transmission lines known as symmetrical lines, comprising two coplanar and parallel narrow conductive strips. According to the invention, the line further comprises a longitudinal and wide planar conductive strip which is parallel to one of the narrow strips at a sufficient distance not to substantially disturb the characteristic impedance of the initial symmetrical line and which is connected to the narrow strip by small planar end conductors thereby forming a longitudinal flat cavity. The cavity offers a first resonance frequency much greater than those of the initial symmetrical line and consequently affords a higher useful frequency bank of signals to be transmitted. The end conductors allow the line to be connected to coaxial connectors. In other embodiments, the cavity is divided into several resonant sub-cavities in order to raise the pass-band.

    Abstract translation: 本发明涉及被称为对称线的微波传输线的低纵向共振频率的增加，包括两个共面和平行的窄导电条。 根据本发明，该线还包括纵向和宽平面导电条，其平行于一条窄条，足够的距离不会基本上干扰初始对称线的特征阻抗，并且通过 小的平面端部导体由此形成纵向平坦的空腔。 空腔提供比初始对称线更大的第一谐振频率，并且因此提供要传输的更高有用频率的信号组。 端子导体允许线路连接到同轴连接器。 在其他实施例中，空腔被分成几个谐振子腔，以便提高通带。

    Electrical filter device
    102.
    发明授权
    Electrical filter device 失效
    电动过滤装置

    公开(公告)号：US4680560A

    公开(公告)日：1987-07-14

    申请号：US844469

    申请日：1986-03-26

    Applicant: Tadahiro Yorita ,  Haruo Matsumoto ,  Itsuo Nakatsuji

    Inventor： Tadahiro Yorita ,  Haruo Matsumoto ,  Itsuo Nakatsuji

    IPC: H01P1/201 ,  H01P1/205 ,  H01P1/202 ,  H03H7/01

    CPC classification number: H01P1/201 ,  H01P1/205

    Abstract: An improved electrical filter device which is so arranged that a low-pass filter having a spurious wave eliminating function is formed into a compact size so as to be incorporated into a dead space within the filter device, while at the same time, high frequency characteristics of said low-pass filter itself are improved, without deteriorating characteristics of the filter device in which the low-pass filter is to be incorporated.

    Abstract translation: 一种改进的电气滤波器装置，其被布置成使得具有杂散波消除功能的低通滤波器形成为紧凑的尺寸，以便被结合到滤波器装置内的死区中，而同时具有高频特性 的所述低通滤波器本身被提高，而不会降低其中将低通滤波器并入其中的滤波器装置的特性。

    Low pass microwave filter
    103.
    发明授权
    Low pass microwave filter 失效
    低通微波滤波器

    公开(公告)号：US3909755A

    公开(公告)日：1975-09-30

    申请号：US48986974

    申请日：1974-07-18

    Applicant: US ARMY

    Inventor： KAUNZINGER HELMUTH M

    IPC: H01P1/201 ,  H01P1/211 ,  H01P1/20 ,  H01P3/06 ,  H01P3/08

    CPC classification number: H01P1/211 ,  H01P1/201

    Abstract: A low pass microwave filter comprised of a two conductor transmission line including at least two cascaded tapered sections wherein one of the conductors in each filter section has a tapered surface, preferably linear, and having an electrical length substantially equal to one half the wavelength of the center frequency of operation. Geometrically and performance-wise the subject filter is unsymmetrical with respect to its input and output ports. The filter does not exhibit the usual rapid transition between the pass band and stop band which is a general characteristic of conventional low pass microwave filters utilizing reflective harmonic structures.

    Abstract translation: 一种低通微波滤波器，由包括至少两个级联锥形部分的双导体传输线组成，其中每个滤波器部分中的一个导体具有锥形表面，优选是线性的，并且具有基本上等于 中心运行频率。 在几何和性能方面，目标滤波器相对于其输入和输出端口是不对称的。 滤波器在通带和阻带之间不会出现通常的快速转变，这是常规的利用反射谐波结构的低通微波滤波器的一般特征。

    Circuits with broad band flat frequency responses using directional filters
    104.
    发明授权
    Circuits with broad band flat frequency responses using directional filters 失效
    使用方向滤波器的宽带平面频率响应电路

    公开(公告)号：US3737784A

    公开(公告)日：1973-06-05

    申请号：US3737784D

    申请日：1971-07-21

    Applicant: COMMUNICATIONS SATELLITE CORP

    Inventor： DOSTIS I

    IPC: H01P1/201 ,  H03D9/06 ,  H03F3/10 ,  H04B1/26

    CPC classification number: H01P1/201 ,  H03D9/0633 ,  H03F3/10

    Abstract: Disclosed heren is a technique for producing broad band flat frequency responses using active elements by eliminating mismatch caused energy reflections. The technique provides for the upling of directional filters to selected ports of n active element. Each of the directional filters includes a resistive termination matched to the source impedance of the port to which it is coupled over a broad band of frequencies outside of the filter passband.

    Abstract translation: 公开的生物是通过消除失配引起的能量反射来产生使用有源元件的宽带平坦频率响应的技术。 该技术提供方向滤波器到n个有源元件的选择端口的顺序。 每个方向滤波器包括与端口的源阻抗相匹配的电阻端接，在该端口上，该滤波器通过频带外的宽频带耦合到该阻抗端。

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