公开(公告)号：US5686873A

公开(公告)日：1997-11-11

申请号：US340542

申请日：1994-11-16

申请人： Hitoshi Tada ,  Hideyuki Kato

发明人： Hitoshi Tada ,  Hideyuki Kato

IPC分类号： H01P1/205 ,  H01P1/213 ,  H01P5/08

CPC分类号： H01P1/2136

摘要： Resonator holes are formed extending one to the other of a pair of opposing end surfaces of a dielectric block, and inner conductors are formed on inner peripheral surfaces of resonator holes respectively. On an outer surface of dielectric block, a pair of input/output electrodes and one antennal electrode are formed, and expect these regions, an outer conductor is formed. By the coupling of two resonators corresponding to the resonator holes, a transmitting filter is provided, and by two resonators corresponding to resonator holes, a receiving filter is formed.

摘要翻译： 谐振器孔形成在电介质块的一对相对的端面中一个延伸到另一个，并且内部导体分别形成在谐振器孔的内周表面上。 在介质块的外表面上，形成一对输入/输出电极和一个天线电极，并且期待这些区域形成外部导体。 通过对应于谐振器孔的两个谐振器的耦合，提供发射滤波器，并且由对应于谐振器孔的两个谐振器形成接收滤波器。

公开(公告)号：US5652555A

公开(公告)日：1997-07-29

申请号：US438493

申请日：1995-05-10

申请人： Hitoshi Tada ,  Haruo Matsumoto ,  Hideyuki Kato

发明人： Hitoshi Tada ,  Haruo Matsumoto ,  Hideyuki Kato

IPC分类号： H01P1/205

CPC分类号： H01P1/2056

摘要： A compact dielectric band elimination filter, which is composed of fewer components and can be produced in fewer production steps, uses a resonator apparatus having a dielectric block with a plurality of throughholes each containing an inner conductor and serving as a resonator. Capacitor electrodes are formed on a main surface of the block such that series-connected resonant capacitors are provided with the inner conductors inside the throughholes. The resonator apparatus is mounted on a substrate of a layered structure having an inductor thereon. Each trap frequency of the filter associated with one of the resonators can be adjusted by making adjustments on the associated resonator without affecting the characteristics of the adjacent resonators, by forming a larger-diameter part and a smaller-diameter part separated by a step inside each throughhole or by using a dielectric block having a wider part and a narrower part through which throughholes with a uniform inner diameter are formed, such that the even-mode input impedance and odd-mode input impedance of each resonator will be equal to zero at the trap frequency associated therewith.

摘要翻译： 一种由较少的部件组成并且可以以更少的制造步骤制造的紧凑型介质带除滤波器使用具有介电块的谐振器装置，该介质块具有多个通孔，每个通孔包含内部导体并用作谐振器。 电容器电极形成在块的主表面上，使得串联谐振电容器在通孔内部设置有内导体。 谐振器装置安装在其上具有电感器的分层结构的基板上。 可以通过在相关联的谐振器上进行调整而不影响相邻谐振器的特性来调节与谐振器中的一个相关联的滤波器的每个陷波频率，通过形成由每个中的每一个内部的步长分开的较大直径部分和较小直径部分 通孔或通过使用具有较宽部分和较窄部分的介质块，通过该介质块形成具有均匀内径的通孔，使得每个谐振器的偶模输入阻抗和奇模输入阻抗将在等于零 陷阱频率相关联。

公开(公告)号：US5426658A

公开(公告)日：1995-06-20

申请号：US200483

申请日：1994-02-23

申请人： Nobuaki Kaneno ,  Hirotaka Kizuki ,  Norio Hayafuji ,  Tetsuo Shiba ,  Hitoshi Tada

发明人： Nobuaki Kaneno ,  Hirotaka Kizuki ,  Norio Hayafuji ,  Tetsuo Shiba ,  Hitoshi Tada

IPC分类号： H01L21/20 ,  H01L21/308 ,  H01S5/20 ,  H01S5/223 ,  H01S5/227 ,  H01S5/323 ,  H01S3/19

CPC分类号： H01L21/3081 ,  H01L21/02392 ,  H01L21/02395 ,  H01L21/02463 ,  H01L21/02505 ,  H01L21/02546 ,  H01L21/0262 ,  H01S5/2231 ,  H01S2304/04 ,  H01S5/2081 ,  H01S5/2277 ,  H01S5/32325

摘要： A semiconductor laser device including a semiconductor substrate; a plurality of semiconductor layers including an AlGaAs layer epitaxially grown on said semiconductor substrate; a ridge having a reverse mesa shape and opposed sides formed of said plurality of semiconductor layers; an Al.sub.x Ga.sub.1-x As low temperature buffer layer (0.ltoreq..times..ltoreq.1) disposed on said AlGaAs layer at opposite sides of said ridge; a first semiconductor layer epitaxially disposed on said low temperature buffer layer at opposite sides of said ridge; and a second semiconductor layer epitaxially disposed on said ridge and said first semiconductor layer.

摘要翻译： 一种半导体激光器件，包括半导体衬底; 包括在所述半导体衬底上外延生长的AlGaAs层的多个半导体层; 具有反台面形状的脊和由所述多个半导体层形成的相对侧; 在所述脊的相对侧设置在所述AlGaAs层上的Al x Ga 1-x As低温缓冲层（0≤x≤1） 在所述脊的相对侧外延地设置在所述低温缓冲层上的第一半导体层; 以及外延地设置在所述脊和所述第一半导体层上的第二半导体层。

公开(公告)号：US5202653A

公开(公告)日：1993-04-13

申请号：US686193

申请日：1991-04-16

申请人： Yasuo Yamada ,  Tadahiro Yorita ,  Hitoshi Tada

发明人： Yasuo Yamada ,  Tadahiro Yorita ,  Hitoshi Tada

IPC分类号： H01P1/205 ,  H03H7/01

CPC分类号： H01P1/2053

摘要： A band-pass filter which includes a plurality of dielectric coaxial resonators which are arranged in a parallel relation and extending axially in the same direction, and have respective coupling terminals inserted therein, and a dielectric substrate formed, on its first surface, with a plurality of coupling electrodes for connecting the respective coupling terminals. The coupling electrodes on the first surface of the dielectric substrate have an inductance element between them for connecting at least two coupling electrodes to each other. Confronting electrodes facing the coupling electrodes are formed on the other surface of the dielectric substrate to from a capacitance bypass circuit. The inductance element may be a printed circuit on the dielectric substrate or an air-core coil. The air-core coil may be located either adjacent the first surface of the substrate, or away from the substrate between the resonators.

摘要翻译： 一种带通滤波器，其包括多个介质同轴谐振器，它们以平行关系布置并沿相同方向轴向延伸，并且各自的耦合端子插入其中;以及电介质基片，在其第一表面上形成有多个 用于连接各个耦合端子的耦合电极。 电介质基板的第一表面上的耦合电极在它们之间具有电感元件，用于将至少两个耦合电极彼此连接。 面对耦合电极的面对电极由电容旁路电路形成在电介质基板的另一个表面上。 电感元件可以是电介质基板或空芯线圈上的印刷电路。 空心线圈可以位于与衬底的第一表面相邻或者远离谐振器之间的衬底。