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1.发明授权
公开(公告)号：US5323127A
公开(公告)日：1994-06-21
申请号：US3837
申请日：1993-01-11
CPC分类号： H03H7/46 , H01P1/2136
摘要： A branching filter in which an input/output port, a first dielectric filter for use in transmission and a second dielectric filter for use in reception are coupled with each other through a branching filter circuit. The branching filter circuit includes a first line provided between the input/output port and an input port of the second dielectric filter, a second line provided between the input/output port and an output port of the first dielectric filter, and a third line provided between the input/output port and the ground. In the filter, conductor lines for use in connection between ports are used for the first and second lines.
摘要翻译： 一种分路滤波器，其中输入/输出端口，用于传输的第一介质滤波器和用于接收的第二介质滤波器通过分路滤波器电路相互耦合。 分路滤波器电路包括设置在第二介质滤波器的输入/输出端口和输入端口之间的第一线路，设置在第一介质滤波器的输入/输出端口和输出端口之间的第二线路，以及提供的第三线路 在输入/输出端口和地之间。 在滤波器中，用于端口之间连接的导体线用于第一和第二线路。
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公开(公告)号：US5227747A
公开(公告)日：1993-07-13
申请号：US892723
申请日：1992-05-29
申请人： Tomokazu Komazaki , Katsuhiko Gunji , Norio Onishi , Osamu Yamato , Akira Mashimo , Kouichi Ichikawa
发明人： Tomokazu Komazaki , Katsuhiko Gunji , Norio Onishi , Osamu Yamato , Akira Mashimo , Kouichi Ichikawa
IPC分类号： H01P1/205
CPC分类号： H01P1/2056
摘要： A dielectric filter includes a unitary dielectric block formed of a uniform, single dielectric material and having electrically conductive metallized patterns formed on front, rear and lateral walls, and on an outer bottom surface thereof. A plurality of coaxial dielectric resonators each including an open end and a central conductor are longitudinally arranged along the center of a top surface of the block and are spaced apart a predetermined distance. Frequency adjusting patterns are formed on the top surface of the block, each frequency adjusting pattern extending around an open end of a respective one of the resonators. Coupling amount adjusting patterns are also disposed on the top surface of the block, each connected to the front and rear walls and disposed between adjacent ones of the frequency adjusting patterns. At least one additional coupling amount adjusting pattern is disposed on the top surface of the block. The additional coupling amount adjusting pattern has a first end mechanically connected to the front wall and a second end capacitively coupled to the rear wall, a gap being provided between the second end and the rear wall. The additional coupling amount adjusting pattern determines a pre-adjusted maximum coupling amount larger than a coupling amount of the plurality of coupling amount adjusting patterns which are connected to the front and rear walls.
摘要翻译： 介质滤波器包括由均匀的单个电介质材料形成并具有形成在前壁，后壁和侧壁以及其外底表面上的导电金属化图案的单一介质块。 每个包括开口端和中心导体的多个同轴介质谐振器沿着块的顶表面的中心纵向布置并且间隔开预定距离。 频率调整图案形成在块的顶表面上，每个频率调整图案围绕相应的谐振器的开口端延伸。 耦合量调节图案也设置在块的顶表面上，每个连接到前壁和后壁并且设置在相邻的频率调整图案之间。 至少一个附加的耦合量调节图案设置在块的顶表面上。 额外的联接量调节图案具有机械地连接到前壁的第一端和与后壁电容耦合的第二端，在第二端和后壁之间设置间隙。 附加耦合量调整图案确定大于连接到前壁和后壁的多个耦合量调节图案的耦合量的预调节最大耦合量。
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公开(公告)号：US5124675A
公开(公告)日：1992-06-23
申请号：US584176
申请日：1990-09-18
IPC分类号： H01P1/205
CPC分类号： H01P1/2056
摘要： An LC-type dielectric filter which includes strip lines on a dielectric plate forming distributed constant type resonators. The strip lines and other elements of the filter, such as coupling capacitances are plated onto the dielectric plate as printed circuits to realize a small, high-Q dielectric filter which is suitable for mass-production.
摘要翻译： 一种LC型介质滤波器，其在形成分布常数型谐振器的电介质板上包括带状线。 将滤波器的带状线和其它元件（例如耦合电容）作为印刷电路电镀在电介质板上，以实现适合于批量生产的小型高Q介质滤波器。
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公开(公告)号：US5097237A
公开(公告)日：1992-03-17
申请号：US566532
申请日：1990-08-10
CPC分类号： H01P1/20381 , H01P7/082
摘要： A microstrip line type resonator includes a rectangular parallelapiped dielectric plate, and a conductive microstrip line disposed on a top surface of the dielectric plate. The microstrip line has opposite ends respectively spaced from front and rear edges of the dielectric plate. The resonator further includes a first grounding layer disposed on an entirety of the bottom surface of the dielectric plate, and a second grounding layer disposed an entirety of the front, rear and side surfaces of the dielectric plate. The first grounding layer is electrically connected to the second grounding layer at the edges of the bottom surface of the dielectric plate. The microstrip line type resonator is a 1/2 wavelength resonator.
摘要翻译： 微带线型谐振器包括矩形平行电介质板和布置在电介质板的顶表面上的导电微带线。 微带线具有分别与电介质板的前边缘和后边缘间隔开的相对端。 谐振器还包括设置在电介质板的整个底表面上的第一接地层和设置在电介质板的整个前，后和侧表面的第二接地层。 第一接地层在电介质板的底表面的边缘处电连接到第二接地层。 微带线型谐振器是1/2波长谐振器。
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公开(公告)号：US5015973A
公开(公告)日：1991-05-14
申请号：US237673
申请日：1988-08-26
申请人： Izumi Kawakami , Tomokazu Komazaki , Katsuhiko Gunji , Norio Onishi , Yoshimitsu Sakurai , Hiroyuki Horii , Akira Mashimo
发明人： Izumi Kawakami , Tomokazu Komazaki , Katsuhiko Gunji , Norio Onishi , Yoshimitsu Sakurai , Hiroyuki Horii , Akira Mashimo
CPC分类号： H03H7/46 , H01P1/2136
摘要： A circuit such as a duplexer which isolates a first and second frequency signals respectively directed to and from an antenna terminal. A transmitter filter has a output terminal connected to a connecting point through a first inductor. A receiver filter has an input terminal connected to the connecting point. The connecting point is connected to the antenna terminal, and to ground through a second inductor. In a modified circuit the output terminal of the transmitter filter and the input terminal of the receiver filter are respectively connected to the connecting point through first and second capacitors. In the preferred embodiments the transmitter filter and the receiver filter are mounted to one side of a dielectric plate and the inductor and/or capacitors are formed by electrically conductive step lines and a capacitance patterns formed on the opposite side of the dielectric plate.
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公开(公告)号：US5015974A
公开(公告)日：1991-05-14
申请号：US366516
申请日：1989-06-15
CPC分类号： H01P1/2136 , H01P1/2056
摘要： An isolating circuit, which isolates a first frequency signal in a first frequency range and a second frequency signal in a second frequency range which is higher than the first frequency range, has as antenna terminal, a first filter and a second filter. The first filter, having a first input terminal and a first output terminal, receives a first input signal including the first frequency signal at the first input terminal and attenuates first frequency component of the first input signal below the first frequency range at a first attenuation rate and second frequency components of the first input signal above the first frequency range at a second attenuation rate. One of the first input and output terminals of the first filter is coupled to the antenna terminal. The first filter further has a first setting terminal setting the first attenuation rate and the second attenuation rate so that the second attenuation rate is greater than the first attenuation rate. The second filter, having second input and output terminals, receives a second input signal including the second frequency signal at the second input terminal and attenuataes third frequency components of the second input signal below the second frequency range at a third attenuation rate and fourth frequency components of the second input signal above the second frequency range at a fourth attenuation rate. One of the second input and output terminals of the second filter is coupled to the antenna terminal. The second filter further has a second setting terminal setting the third attenuation rate and fourth attenuation rate so that the third attenuation rate is greater than the fourth attenuation rate.
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公开(公告)号：US4891615A
公开(公告)日：1990-01-02
申请号：US285527
申请日：1988-12-16
申请人： Tomokazu Komazaki , Katsuhiko Gunji , Norio Onishi , Yoshimitu Sakurai , Hiroyuki Horii , Akira Mashimo
发明人： Tomokazu Komazaki , Katsuhiko Gunji , Norio Onishi , Yoshimitu Sakurai , Hiroyuki Horii , Akira Mashimo
CPC分类号： H01P1/2056
摘要： A dielectric filter with an attenuation pole having sharp attenuation characteristics. The dielectric block employed in the present dielectric includes a dielectric block single-block formed of TiO.sub.2 or BaO, for example. The dielectric block of this type has a plurality of resonators extending from a top surface toward a bottom surface thereof, a plurality of adjusting patterns provided over the top surface thereof, an outer conductor formed by side surfaces and the bottom surface thereof, input and output electrodes, wherein the adjusting patterns, the outer conductor, input and output electrodes maybe plated, for example, by silver, and an insulated cable which may have one end connected to the outer conductor and another end connected to the output electrode is disposed over the plurality of resonators so as to be coupled thereto.
摘要翻译： 具有衰减极的介质滤波器具有明显的衰减特性。 在本电介质中使用的介质块包括例如由TiO 2或BaO形成的介电块单块。 这种类型的介质块具有从顶表面向其底表面延伸的多个谐振器，在其顶表面上设置的多个调节图案，由侧表面及其底表面形成的外导体，输入和输出 电极，其中调节图案，外导体，输入和输出电极可以例如由银电镀，并且可以具有连接到外导体的一端和连接到输出电极的另一端的绝缘电缆设置在 多个谐振器以便耦合到其上。
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8.发明授权Dielectric filter having an attenuation pole tunable to a predetermined frequency 失效具有预测频率的衰减电压的电介质滤波器
公开(公告)号：US5150089A
公开(公告)日：1992-09-22
申请号：US641252
申请日：1990-12-26
IPC分类号： H01P1/205
CPC分类号： H01P1/2056
摘要： A dielectric filter includes a homogeneous monolithic block of dielectric material having a plurality of parallel extending dielectric resonators formed therein. A plurality of first electrodes extend alond the top surface of the monolithic block, each encompassing an opening in the monolithic block defined by a corresponding one of the plurality of dielectric resonators. Either the distance between adjacent dielectric resonators or the configuration of the first electrodes is established to cause an overcoupling based on the coupling impedance, thereby tuning an attenuation pole of the dielectric filter to a finite frequency. Additionally, second electrodes are provided along the top surface of the monolithic block extending between and spaced from the first electrodes and connected to a ground electrode.
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公开(公告)号：US06489861B2
公开(公告)日：2002-12-03
申请号：US09842106
申请日：2001-04-26
IPC分类号： H03H972
CPC分类号： H03H9/6483 , H03H9/725
摘要： An antenna duplexer has a first filter and a second filter coupled to respective signal terminals and to a common node. The common node is coupled to an antenna terminal. The first filter has a higher-frequency passband than the second filter. A transmission-line circuit, inserted between the first filter and the common node, increases the impedance of the first filter in its lower stopband. The transmission-line circuit includes an internal node, a first transmission line coupling the internal node to the common node, a second transmission line coupling the internal node to the first filter, and a grounding circuit such as a capacitor coupling the internal node to ground. The grounding circuit further enhances the lower stopband impedance of the first filter.
摘要翻译： 天线双工器具有耦合到相应的信号端子和公共节点的第一滤波器和第二滤波器。 公共节点耦合到天线端子。 第一滤波器具有比第二滤波器更高的通带。 插入在第一滤波器和公共节点之间的传输线路电路增加第一滤波器在其下阻带中的阻抗。 传输线电路包括内部节点，将内部节点耦合到公共节点的第一传输线，将内部节点耦合到第一滤波器的第二传输线，以及诸如将内部节点耦合到地之间的电容器的接地电路 。 接地电路进一步增强了第一滤波器的下阻带阻抗。
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公开(公告)号：US07599262B2
公开(公告)日：2009-10-06
申请号：US11493462
申请日：2006-07-25
申请人： Akira Mashimo
发明人： Akira Mashimo
IPC分类号： G11B7/00
CPC分类号： G11B7/0053 , G11B7/24082 , G11B20/10 , G11B20/14 , G11B27/24 , G11B2220/2541
摘要： To detect an MSK modulation mark from an MSK-modulated wobble signal without fail. A wobble signal of an optical disk is supplied to an address decoding circuit. The address decoding circuit performs exclusive-OR operation of a binarized wobble signal and a reference clock signal generated from the wobble signal by an PLL circuit, to thus compute a proportion of the exclusive-OR result assuming a value of one every half period of a reference clock signal. When there are continuously present a predetermined number of sections or more where a proportion becomes a predetermined threshold proportion or more, the sections are detected as an MSK modulation mark. A system controller changes the threshold proportion in accordance with crosstalk from an adjacent track.
摘要翻译： 从MSK调制的摆动信号中检测出MSK调制标记，而不会失败。 光盘的摆动信号被提供给地址解码电路。 地址解码电路通过PLL电路进行二进制摆动信号和由摆动信号产生的参考时钟信号的异或运算，从而计算出异或结果的比例，假设每半个周期的值为1 参考时钟信号。 当连续存在预定数量的部分或更多部分，其中比例成为预定阈值比例或更多时，这些部分被检测为MSK调制标记。 系统控制器根据来自相邻轨道的串扰改变阈值比例。
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