公开(公告)号：US5475350A

公开(公告)日：1995-12-12

申请号：US127500

申请日：1993-09-28

申请人： Toru Yamada ,  Toshio Ishizaki ,  Yoshihiro Nakagawa ,  Makoto Sakakura ,  Koji Hashimoto ,  Toshiaki Nakamura

发明人： Toru Yamada ,  Toshio Ishizaki ,  Yoshihiro Nakagawa ,  Makoto Sakakura ,  Koji Hashimoto ,  Toshiaki Nakamura

IPC分类号： H01P7/04 ,  H01P7/08 ,  H01P7/10

CPC分类号： H01P7/088 ,  H01P7/04

摘要： A coupled capacitor substrate having thereon a plane capacitor which is integrally bonded on a dielectric resonator and a varactor which is mounted on the coupled capacitor substrate so as to couple the dielectric resonator via the plane capacitor.

摘要翻译： 一种耦合电容器基板，其上具有整体结合在介质谐振器上的平面电容器和安装在耦合的电容器基板上以便经由平面电容器耦合介质谐振器的变容二极管。

公开(公告)号：US6166613A

公开(公告)日：2000-12-26

申请号：US896908

申请日：1997-07-18

申请人： Yoshihiro Nakagawa ,  Koichi Ogawa ,  Toshio Ishizaki ,  Makoto Sakakura ,  Toshiaki Nakamura

发明人： Yoshihiro Nakagawa ,  Koichi Ogawa ,  Toshio Ishizaki ,  Makoto Sakakura ,  Toshiaki Nakamura

IPC分类号： H03B5/12 ,  H01P7/08 ,  H03B5/18 ,  H01P1/203

CPC分类号： H01P7/088

摘要： A voltage-controlled resonator is fabricated by laminating, one on top of the other, a first dielectric which has a resonant circuit and on the upper surface of which a variable-capacitance element is mounted, and a second dielectric which has a through-hole formed in a position thereof corresponding to the position of the variable-capacitance element and which has a dual function of shielding and resonant frequency tuning. With this structure, the height of the resonator can be further reduced compared with the prior art while retaining the shielding effect, and moreover, further precise resonant frequency tuning can be accomplished as compared with the prior art.

摘要翻译： 一个压控谐振器通过层叠一个第一介电体制成，第一电介质具有谐振电路，其上表面上安装有可变电容元件，第二电介质具有通孔 形成在与可变电容元件的位置对应的位置，并具有屏蔽和共振频率调谐的双重功能。 利用这种结构，与现有技术相比，谐振器的高度可以进一步降低，同时保持屏蔽效果，此外，与现有技术相比，可以实现更精确的谐振频率调谐。

公开(公告)号：US07038557B2

公开(公告)日：2006-05-02

申请号：US10085264

申请日：2002-02-27

申请人： Hiroyuki Nakamura ,  Toshio Ishizaki ,  Hisashi Adachi ,  Makoto Sakakura ,  Hiroaki Kosugi ,  Hiroyuki Itokawa ,  Toshiaki Nakamura

发明人： Hiroyuki Nakamura ,  Toshio Ishizaki ,  Hisashi Adachi ,  Makoto Sakakura ,  Hiroaki Kosugi ,  Hiroyuki Itokawa ,  Toshiaki Nakamura

IPC分类号： H03H7/46

CPC分类号： H04B1/0057 ,  H04B1/48 ,  H04B1/52

摘要： An antenna duplexer has an antenna terminal; a transmitting phase-shift circuit, one side of which is connected to the antenna terminal; a receiving phase-shift circuit, one side of which is connected to the antenna terminal; a transmitting filter connected to the other side of the transmitting phase-shift circuit and a transmitting terminal; and a receiving filter connected to the other side of the receiving phase-shift circuit and a receiving terminal; wherein the transmitting filter and/or the receiving filter is a composite filter, and the composite filter attains a characteristic having an attenuation pole at simultaneous transmission and reception time when transmission and reception are simultaneously performed, and controls respective impedances by the transmitting phase-shift circuit and the receiving phase-shift circuit to operate as a sharing unit and attains a characteristic where the attenuation pole is removed at non simultaneous transmission and reception time when transmission and reception are not performed simultaneously.

公开(公告)号：US6072376A

公开(公告)日：2000-06-06

申请号：US912122

申请日：1997-08-15

申请人： Toshimitsu Matsuyoshi ,  Minoru Tachibana ,  Junichi Yoshizumi ,  Makoto Sakakura ,  Toshio Ishizaki ,  Tomoki Uwano ,  Toshiaki Nakamura

发明人： Toshimitsu Matsuyoshi ,  Minoru Tachibana ,  Junichi Yoshizumi ,  Makoto Sakakura ,  Toshio Ishizaki ,  Tomoki Uwano ,  Toshiaki Nakamura

IPC分类号： H03F3/68 ,  H01P1/205 ,  H03F1/26 ,  H03F3/60 ,  H03H7/01

CPC分类号： H01P1/2053 ,  H03F3/604 ,  H03F2200/372

摘要： A filter with a low-noise amplifier includes: two amplification circuits, a first 3-dB hybrid circuit which is connected to an input side of the amplification circuits, a second 3-dB hybrid circuit which is connected to an output side of the amplification circuits, and a filter which is connected to one input terminal of the first 3-dB hybrid circuit. The other input terminal of the first 3-dB hybrid circuit is subjected to matched termination. A signal is inputted to an input terminal of the filter and is outputted from one output terminal of the second 3-dB hybrid circuit and the other output terminal of the second 3-dB hybrid circuit is subjected to matched termination.

摘要翻译： 具有低噪声放大器的滤波器包括：两个放大电路，连接到放大电路的输入侧的第一个3-dB混合电路，连接到放大器的输出侧的第二个3-dB混合电路 电路和连接到第一3-dB混合电路的一个输入端的滤波器。 第一个3-dB混合电路的另一个输入端子进行匹配的端接。 信号被输入到滤波器的输入端，并从第二3-dB混合电路的一个输出端输出，第二个3-dB混合电路的另一个输出端经过匹配的终端。

公开(公告)号：US06456172B1

公开(公告)日：2002-09-24

申请号：US09692546

申请日：2000-10-20

申请人： Toshio Ishizaki ,  Toru Yamada ,  Hiroshi Kagata ,  Makoto Sakakura

发明人： Toshio Ishizaki ,  Toru Yamada ,  Hiroshi Kagata ,  Makoto Sakakura

IPC分类号： H03H972

CPC分类号： H01P1/20345 ,  H01L23/66 ,  H01L2223/6627 ,  H01L2224/16225 ,  H01L2224/16235 ,  H01L2924/00014 ,  H01L2924/0102 ,  H01L2924/01057 ,  H01L2924/01079 ,  H01L2924/09701 ,  H01L2924/1305 ,  H01L2924/15153 ,  H01L2924/15165 ,  H01L2924/1517 ,  H01L2924/16152 ,  H01L2924/16195 ,  H01L2924/19032 ,  H01L2924/19105 ,  H01L2924/3011 ,  H01L2924/3025 ,  H01L2924/00 ,  H01L2224/0401

摘要： A multilayered ceramic RF device having at least one radio frequency filter includes a low temperature-cofired multilayered ceramic body having a plurality of ceramic layers laminated one upon another and fired together. The low temperature-cofired multilayered ceramic body also has a first electrode pattern formed therein and a second electrode pattern formed thereon. The first and second electrode patterns are electrically connected to one another through a via hole. A bare semiconductor chip is mounted on the low temperature-cofired multilayered ceramic body with a face down bonding, and the bare semiconductor chip is coated with a sealing resin. The at least one radio frequency filter is a multilayered filter formed in the low temperature-cofired multilayered ceramic body, and the multilayered filter includes a part of the first and second electrode patterns.

摘要翻译： 具有至少一个射频滤波器的多层陶瓷RF器件包括具有多个层叠在一起的多个陶瓷层的低温共烧多层陶瓷体。 低温共烧多层陶瓷体还具有形成在其中的第一电极图案和形成在其上的第二电极图案。 第一和第二电极图案通过通孔彼此电连接。 裸机半导体芯片安装在低温共烧的多层陶瓷体上，面朝下接合，裸半导体芯片涂有密封树脂。 所述至少一个射频滤波器是形成在所述低温共烧多层陶瓷体中的多层滤光器，并且所述多层滤光器包括所述第一和第二电极图案的一部分。

公开(公告)号：US06995636B2

公开(公告)日：2006-02-07

申请号：US10758983

申请日：2004-01-16

申请人： Takehiko Yamakawa ,  Toru Yamada ,  Toshio Ishizaki ,  Minoru Tachibana ,  Toshiaki Nakamura ,  Hiroyuki Nakamatsu

发明人： Takehiko Yamakawa ,  Toru Yamada ,  Toshio Ishizaki ,  Minoru Tachibana ,  Toshiaki Nakamura ,  Hiroyuki Nakamatsu

IPC分类号： H01P1/20 ,  H01P7/10

CPC分类号： H01P1/2053

摘要： A small in-band-flat-group-delay type dielectric filter having low-loss characteristics with a small amplitude deviation and uniform-group-delay frequency characteristics is obtained, which enables broad-band characteristics to be obtained easily. The in-band-flat-group-delay type dielectric filter includes a plurality of dielectric coaxial resonators, a coupling circuit comprising a combination of reactive elements, with which the dielectric coaxial resonators are coupled to one another, and input/output terminals connected to ends of the coupling circuit. The dielectric coaxial resonators coupled to the input/output terminals are allowed to have a different characteristic impedance from that of the inter-stage dielectric coaxial resonators.

公开(公告)号：US06794959B2

公开(公告)日：2004-09-21

申请号：US10280925

申请日：2002-10-25

申请人： Takehiko Yamakawa ,  Toru Yamada ,  Toshio Ishizaki ,  Minoru Tachibana ,  Toshiaki Nakamura ,  Hiroyuki Nakamatsu

发明人： Takehiko Yamakawa ,  Toru Yamada ,  Toshio Ishizaki ,  Minoru Tachibana ,  Toshiaki Nakamura ,  Hiroyuki Nakamatsu

IPC分类号： H01P120

CPC分类号： H01P1/2053

摘要： A small in-band-flat-group-delay type dielectric filter having low-loss characteristics with a small amplitude deviation and uniform-group-delay frequency characteristics is obtained, which enables broad-band characteristics to be obtained easily. The in-band-flat-group-delay type dielectric filter includes a plurality of dielectric coaxial resonators, a coupling circuit comprising a combination of reactive elements, with which the dielectric coaxial resonators are coupled to one another, and input/output terminals connected to ends of the coupling circuit. The dielectric coaxial resonators coupled to the input/output terminals are allowed to have a different characteristic impedance from that of the inter-stage dielectric coaxial resonators.

摘要翻译： 得到具有小振幅偏差和均匀群延迟频率特性的低损耗特性的小带内平面延迟型介质滤波器，能够容易地获得宽带特性。 带内平坦组延迟型介质滤波器包括多个介质同轴谐振器，耦合电路，包括电介质同轴谐振器彼此耦合的无功元件的组合，以及连接到 耦合电路的两端。 耦合到输入/输出端子的电介质同轴谐振器被允许具有与级间介质同轴谐振器不同的特性阻抗。

公开(公告)号：US06515559B1

公开(公告)日：2003-02-04

申请号：US09618714

申请日：2000-07-18

申请人： Takehiko Yamakawa ,  Toru Yamada ,  Toshio Ishizaki ,  Minoru Tachibana ,  Toshiaki Nakamura ,  Hiroyuki Nakamatsu

发明人： Takehiko Yamakawa ,  Toru Yamada ,  Toshio Ishizaki ,  Minoru Tachibana ,  Toshiaki Nakamura ,  Hiroyuki Nakamatsu

IPC分类号： H01P120

CPC分类号： H01P1/2053

摘要： A small in-band-flat-group-delay type dielectric filter having low-loss characteristics with a small amplitude deviation and uniform-group-delay frequency characteristics is obtained, which enables broad-band characteristics to be obtained easily. The in-band-flat-group-delay type dielectric filter includes a plurality of dielectric coaxial resonators, a coupling circuit comprising a combination of reactive elements, with which the dielectric coaxial resonators are coupled to one another, and input/output terminals connected to ends of the coupling circuit. The dielectric coaxial resonators coupled to the input/output terminals are allowed to have a different characteristic impedance from that of the inter-stage dielectric coaxial resonators.

摘要翻译： 得到具有小振幅偏差和均匀群延迟频率特性的低损耗特性的小带内平面延迟型介质滤波器，能够容易地获得宽带特性。 带内平坦组延迟型介质滤波器包括多个介质同轴谐振器，耦合电路，包括电介质同轴谐振器彼此耦合的无功元件的组合，以及连接到 耦合电路的两端。 耦合到输入/输出端子的电介质同轴谐振器被允许具有与级间介质同轴谐振器不同的特性阻抗。

公开(公告)号：US06707353B1

公开(公告)日：2004-03-16

申请号：US09868651

申请日：2001-09-14

申请人： Takehiko Yamakawa ,  Toru Yamada ,  Toshio Ishizaki ,  Akira Enokihara ,  Minoru Tachibana ,  Toshiaki Nakamura

发明人： Takehiko Yamakawa ,  Toru Yamada ,  Toshio Ishizaki ,  Akira Enokihara ,  Minoru Tachibana ,  Toshiaki Nakamura

IPC分类号： H01P120

CPC分类号： H01P1/2084

摘要： In order to prevent filter characteristics from being deteriorated due to generation of a spurious pulse is unnecessary resonance at a high level in a passing band at the frequency in a microwave region used in a portable telephone system or the like, at least two types of dielectric resonators having different frequency characteristics in unnecessary harmonic modes except for a main mode near the passing band of a filter are arranged in spaces partitioned by partition walls in a shielding unit constituted by a metal case and a lid, so that a dielectric filter which can obtain preferable spurious suppressing characteristics.

摘要翻译： 为了防止由于杂散脉冲的产生而导致的滤波器特性劣化，在便携式电话系统等中使用的微波区域中的通过频带中的高电平的不必要的谐振，至少两种类型的电介质 在除了滤波器的通带附近的主模式以外的不必要的谐波模式中具有不同频率特性的谐振器被布置在由金属壳体和盖子构成的屏蔽单元中由隔壁分隔的空间中，使得能够获得 优选的杂散抑制特性。

公开(公告)号：US07127215B2

公开(公告)日：2006-10-24

申请号：US09425668

申请日：1999-10-22

申请人： Hiroyuki Nakamura ,  Makoto Sakakura ,  Toshio Ishizaki ,  Jyunichi Yoshizumi

发明人： Hiroyuki Nakamura ,  Makoto Sakakura ,  Toshio Ishizaki ,  Jyunichi Yoshizumi

IPC分类号： H04B1/44 ,  H01P5/12

CPC分类号： H04B1/48

摘要： A transmitting/receiving switch, in which a transmission terminal connected to a transmission circuit is connected to an antenna terminal through a first switching element, a filter for attenuating harmonic contents in a transmission signal, a phase-shift circuit for significantly increasing an impedance from a node toward said transmission terminal in a reception frequency band by phase-adjusting the amount of phase shift by performing phase adjustment according to the amount of the phase shift generated by said filter. Furthermore, the antenna terminal connected to an antenna ANT is connected to a reception terminal through the node and a second switching element, and the reception terminal is connected to a reception circuit Rx.

摘要翻译： 一种发送/接收开关，其中连接到发送电路的发送终端通过第一开关元件连接到天线端子，用于衰减发送信号中的谐波内容的滤波器，相移电路，用于显着增加来自 通过根据由所述滤波器产生的相移量执行相位调整来相位调整相移量，从而在接收频带中向所述发送终端发送一个节点。 此外，连接到天线ANT的天线端子通过节点和第二开关元件连接到接收终端，并且接收终端连接到接收电路Rx。