公开(公告)号：US4721931A

公开(公告)日：1988-01-26

申请号：US44817

申请日：1987-04-30

申请人： Toshio Nishikawa ,  Youhei Ishikawa ,  Jun Hattori ,  Hideyuki Kato

发明人： Toshio Nishikawa ,  Youhei Ishikawa ,  Jun Hattori ,  Hideyuki Kato

IPC分类号： H01P1/203 ,  H01P1/205 ,  H01P7/08

CPC分类号： H01P1/20336 ,  H01P1/205

摘要： A stripline filter includes a cylindrical substrate made of a dielectric material and having inner and outer surfaces with opposite ends thereof opened. A ground electrode is deposited on the inner surface, and on the inner surface, interdigitated electrodes are deposited. Alternately, the ground electrode may be deposited on the outer surface, and the interdigitated electrodes may be deposited on the inner surface. Thus, the stripline filter can be arranged in a compact size. Also, the ground electrode provided on the outer surface prevents electromagnetic waves generated from the interdigitated electrodes from being emitted out.

摘要翻译： 带状线过滤器包括由电介质材料制成的圆柱形衬底，并具有内表面和外表面，其两端开口。 接地电极沉积在内表面上，并且在内表面上沉积交叉电极。 或者，接地电极可以沉积在外表面上，并且叉指电极可以沉积在内表面上。 因此，带状线滤波器可以以紧凑的尺寸布置。 此外，设置在外表面上的接地电极防止从交叉电极产生的电磁波被发射出去。

公开(公告)号：US5132651A

公开(公告)日：1992-07-21

申请号：US536175

申请日：1990-06-11

申请人： Youhei Ishikawa ,  Jun Hattori ,  Toshio Nishikawa

发明人： Youhei Ishikawa ,  Jun Hattori ,  Toshio Nishikawa

IPC分类号： H01P1/205 ,  H03H11/04

CPC分类号： H03H11/04 ,  H01P1/205

摘要： A filter apparatus in accordance with the present invention comprises, for example, a band-pass filter and a plurality of band-stop filters connected as the post-stage to the band-pass filter. The band-pass filter transmits a band containing a desired frequency band, and the band-stop filters attenuate undesirable frequency bands. Another filter apparatus in accordance with the present invention comprises, for example, a first band-pass filter, a circulator connected to the first band-pass filter, and second band-pass filters connected to the circulator. The first band-pass filter transmits a band containing a desired frequency band to the circulator, and the second band-pass filters transmit undesirable frequency bands and reflect the desire frequency band to the circulator. The desired frequency band is outputted from this circulator. Still another filter apparatus in accordance with the present invention comprises, for example, a circulator and a band-pass filter connected to the circulator. The band-pass filter transmits an undesirable frequency band and reflects a desired frequency band to the circulator. The desired frequency band is outputted from this circulator.

公开(公告)号：US5291160A

公开(公告)日：1994-03-01

申请号：US846822

申请日：1992-03-06

申请人： Youhei Ishikawa ,  Jun Hattori ,  Toshio Nishikawa

发明人： Youhei Ishikawa ,  Jun Hattori ,  Toshio Nishikawa

IPC分类号： H01P1/205 ,  H03H11/04 ,  H01P1/20

CPC分类号： H03H11/04 ,  H01P1/205

摘要： A filter apparatus in accordance with the present invention comprises, for example, a band-pass filter and a plurality of band-stop filters connected as the post-stage to the band-pass filter. The band-pass filter transmits a band containing a desired frequency band, and the band-stop filters attenuate undesirable frequency bands. Another filter apparatus in accordance with the present invention comprises, for example, a first band-pass filter, a circulator connected to the first band-pass filter, and second band-pass filters connected to the circulator. The first band-pass filter transmits a band containing a desired frequency band to the circulator, and the second band-pass filters transmit undesirable frequency bands and reflect the desired frequency band back to the circulator. The desired frequency band is outputted from this circulator. Still another filter apparatus in accordance with the present invention comprises, for example, a circulator and a band-pass filter connected to the circulator. The band-pass filter transmits an undesirable frequency band and reflects a desired frequency band to the circulator. The desired frequency band is outputted from this circulator.

摘要翻译： 根据本发明的滤波器装置包括例如带通滤波器和作为后置级连接到带通滤波器的多个带阻滤波器。 带通滤波器发送包含期望频带的频带，并且带阻滤波器衰减不期望的频带。 根据本发明的另一种滤波器装置包括例如第一带通滤波器，连接到第一带通滤波器的环行器和连接到循环器的第二带通滤波器。 第一带通滤波器将包含期望频带的频带发送到循环器，并且第二带通滤波器发送不期望的频带并将期望的频带反射回循环器。 从该循环器输出期望的频带。 根据本发明的另一滤波器装置包括例如连接到循环器的环行器和带通滤波器。 带通滤波器发送不期望的频带并将期望的频带反射到循环器。 从该循环器输出期望的频带。

公开(公告)号：US4623857A

公开(公告)日：1986-11-18

申请号：US812235

申请日：1985-12-23

申请人： Toshio Nishikawa ,  Youhei Ishikawa ,  Hidekazu Wada ,  Koichi Takehara

发明人： Toshio Nishikawa ,  Youhei Ishikawa ,  Hidekazu Wada ,  Koichi Takehara

IPC分类号： H01P1/208 ,  H01P7/10 ,  H01P7/06

CPC分类号： H01P1/2086

摘要： A dielectric resonator device which includes dielectric resonators constituted by a rectangular cavity shield casing and a composite dielectric structure formed by three dielectric members intersecting at right angles with each other to be combined into one unit and disposed in the rectangular cavity shield casing to provide three resonances by TM.sub.110 modes or modified modes thereof which are utilized by the dielectric resonators, and an external coupling device for coupling the dielectric resonators with external circuits.

摘要翻译： 一种介质谐振器装置，其包括由矩形空腔屏蔽壳体构成的介质谐振器和由彼此成直角相交的三个电介质构件形成的复合电介质结构，以组合成一个单元并且设置在矩形空腔屏蔽壳体中以提供三个谐振 由介质谐振器利用的TM110模式或其修改模式，以及用于将介质谐振器与外部电路耦合的外部耦合装置。

公开(公告)号：US4423397A

公开(公告)日：1983-12-27

申请号：US277389

申请日：1981-06-25

申请人： Toshio Nishikawa ,  Youhei Ishikawa ,  Sadahiro Tamura ,  Yoji Ito

发明人： Toshio Nishikawa ,  Youhei Ishikawa ,  Sadahiro Tamura ,  Yoji Ito

IPC分类号： H01P1/208 ,  H01P7/10 ,  H01P1/209

CPC分类号： H01P7/10 ,  H01P1/2084

摘要： A dielectric resonator has a sector shape, and a filter has a signal source for emitting signal to be filtered, signal receiver for receiving the filtered signal and a path defined between the signal source and the signal receiver. At least one sector shaped dielectric resonator is disposed in the path.

摘要翻译： 介质谐振器具有扇形，并且滤波器具有用于发射要滤波的信号的信号源，用于接收经滤波的信号的信号接收器和信号源与信号接收器之间定义的路径。 至少一个扇形介质谐振器设置在路径中。

公开(公告)号：US4639699A

公开(公告)日：1987-01-27

申请号：US537711

申请日：1983-09-30

申请人： Toshio Nishikawa ,  Youhei Ishikawa ,  Hidekazu Wada

发明人： Toshio Nishikawa ,  Youhei Ishikawa ,  Hidekazu Wada

IPC分类号： H01P7/10

CPC分类号： H01P7/10

摘要： A dielectric resonator is disclosed which includes a case having a resonator main body portion, an upper lid and a lower lid. Inside the case is a cylindrical dielectric material. The case is formed of a dielectric material having the same coefficient of linear expansion as the cylindrical dielectric material. In one embodiment, main body portion comprises a dielectric case side portion with the cylindrical dielectric material disposed concentrically in a concavity defined by the case side portion, with the cylindrical dielectric material being integrally coupled to the dielectric case side portion by four connecting portions. More specifically, in this embodiment, the case side portion of the main body portion and the cylindrical portion are simultaneously and integrally formed of the same dielectric material. A conductive film is formed to enclose a region surrounding the cylindrical dielectric material. In one embodiment, the conductive film is formed on the whole outer surface of the dielectric case side portion and conductive films and are also formed on the lower surface of the upper lid and the upper surface of the lower lid.

摘要翻译： 公开了一种介质谐振器，其包括具有谐振器主体部分，上盖和下盖的壳体。 在这种情况下是一种圆柱形电介质材料。 壳体由具有与圆柱形电介质材料相同的线性膨胀系数的电介质材料形成。 在一个实施例中，主体部分包括介电壳体侧部分，其中圆柱形电介质材料同心地设置在由壳体侧部分限定的凹部中，圆柱形电介质材料通过四个连接部分一体地耦合到电介质外壳侧部分。 更具体地，在本实施例中，主体部分的壳体侧部分和圆筒部分由相同的电介质材料同时整体形成。 形成导电膜以包围围绕圆柱形电介质材料的区域。 在一个实施例中，导电膜形成在介电壳体侧部分的整个外表面和导电膜上，并且还形成在上盖的下表面和下盖的上表面上。

公开(公告)号：US4325035A

公开(公告)日：1982-04-13

申请号：US123061

申请日：1980-02-20

申请人： Toshio Nishikawa ,  Yoji Ito ,  Youhei Ishikawa ,  Sadahiro Tamura

发明人： Toshio Nishikawa ,  Yoji Ito ,  Youhei Ishikawa ,  Sadahiro Tamura

IPC分类号： H03B1/00 ,  H03B5/18

CPC分类号： H03B5/1876 ,  H03B2201/017 ,  H03B5/1829 ,  H03B5/1852

摘要： A dielectric resonator is housed within an internal space of a metallic casing. An amplifier is disposed outside the space and an input and output circuits are connected to the amplifier. An output coupling window is formed in the casing at the position corresponding to the output circuit of the amplifier and an input coupling window is formed in the casing at the position corresponding to the input circuit of the amplifier. An electromagnetic wave leaking from the output circuit of the amplifier is coupled through the output coupling window to the dielectric resonator and the dielectric resonator is further coupled to the input circuit of the amplifier through the input coupling window.

摘要翻译： 介电谐振器容纳在金属外壳的内部空间内。 放大器设置在空间外部，输入和输出电路连接到放大器。 输出耦合窗口在与放大器的输出电路相对应的位置处形成在壳体中，并且在与放大器的输入电路对应的位置处在壳体中形成输入耦合窗口。 从放大器的输出电路泄漏的电磁波通过输出耦合窗口耦合到介质谐振器，并且介质谐振器通过输入耦合窗口进一步耦合到放大器的输入电路。

公开(公告)号：US4276525A

公开(公告)日：1981-06-30

申请号：US963756

申请日：1978-11-27

申请人： Toshio Nishikawa ,  Sadahiro Tamura ,  Youhei Ishikawa

发明人： Toshio Nishikawa ,  Sadahiro Tamura ,  Youhei Ishikawa

IPC分类号： H01P1/205 ,  H01P7/08

CPC分类号： H01P1/2053

摘要： The disclosure relates to an improved coaxial resonator and an electrical filter employing such coaxial resonators. The electrical filter includes a casing of electrically conductive material, at least more than one coaxial resonators, for example, 1/4 wavelength coaxial TEM resonators each having dielectric member disposed between inner conductor and outer conductor of the coaxial resonator and a terminal electrode secured in the inner conductor to provide a terminal portion projecting from an open end face of each of the coaxial resonators, and accommodated in the casing so as to be electrically connected and mechanically secured to the casing, and coupling members for electrically coupling the resonators to each other at the terminal portions and also to input and output connectors for said electrical filter.

摘要翻译： 本公开涉及一种改进的同轴谐振器和采用这种同轴谐振器的电滤波器。 电气滤波器包括导电材料的壳体，至少一个以上的同轴谐振器，例如1/4波长同轴TEM谐振器，每个共振谐振器具有布置在同轴谐振器的内部导体和外部导体之间的电介质构件，以及固定在 内部导体，以提供从每个同轴谐振器的开放端面突出的端子部分，并且容纳在壳体中以便电连接并机械地固定到壳体，以及用于将谐振器彼此电耦合的耦合部件 在端子部分处以及用于所述电气滤波器的输入和输出连接器。

公开(公告)号：US4143344A

公开(公告)日：1979-03-06

申请号：US805572

申请日：1977-06-10

申请人： Toshio Nishikawa ,  Youhei Ishikawa ,  Sadahiro Tamura

发明人： Toshio Nishikawa ,  Youhei Ishikawa ,  Sadahiro Tamura

IPC分类号： H01P7/10 ,  H01P1/20 ,  H01P1/208 ,  H01P7/06

CPC分类号： H01P1/2084

摘要： A microwave band-pass filter has a casing, at least one dielectric resonator in the casing and at least one metallic adjusting screw supported by a wall of the casing and positioned adjacent the dielectric resonator with the tip end of the screw closely adjacent the resonator, so as to improve the sensitivity characteristics of the filter especially in the region higher than the resonance frequency.

公开(公告)号：US5229729A

公开(公告)日：1993-07-20

申请号：US913772

申请日：1992-07-13

申请人： Toshio Nishikawa ,  Youhei Ishikawa ,  Koichi Takehara

发明人： Toshio Nishikawa ,  Youhei Ishikawa ,  Koichi Takehara

IPC分类号： H01P1/213 ,  H01P7/10

CPC分类号： H01P7/10 ,  H01P1/2138

摘要： A radio frequency signal combining/sorting apparatus which includes a plurality of channel filters which allow band regions of respective transmission channels to pass through them, isolators connected to respective inputs of the channel filters, a plurality of sets of power composing circuits each including branch lines for composing outputs of the channel filters into one output, and hybrid circuits arranged to each compose the outputs per two sets of the power composing circuits. The band regions to be applied to the respective channel filters are selected in such relation that the band regions of the respective channel filters corresponding to a given power composing circuit are spaced from each other to the largest possible extent.

摘要翻译： 一种射频信号组合/分类装置，其包括允许各个传输信道的频带区域通过它们的多个信道滤波器，连接到信道滤波器的相应输入端的隔离器，多组功率合成电路，每组包括分支线路 用于将信道滤波器的输出组合成一个输出，以及混合电路，每个组合电路组合每两组功率合成电路的输出。 选择要施加到各个信道滤波器的频带区域，使得对应于给定功率合成电路的各个信道滤波器的频带区域以最大可能的程度相互间隔开。