公开(公告)号：US06850131B2

公开(公告)日：2005-02-01

申请号：US10210569

申请日：2002-07-31

申请人： Arun Chandra Kundu

发明人： Arun Chandra Kundu

IPC分类号： H01P1/203 ,  H01P1/201 ,  H01P1/205 ,  H01P7/08 ,  H01P1/20 ,  H01P1/219

CPC分类号： H01P1/201

摘要： A highly compact bandpass filter that has excellent mechanical strength is disclosed. A bandpass filter according to the present invention employs a dielectric block of substantially rectangular prismatic shape constituted of a first portion lying between a first cross-section of the dielectric block and a second cross-section of the dielectric block substantially parallel to the first cross-section and second and third portions divided by the first portion and metal plates formed on surfaces of the dielectric block. The first portion of the dielectric block and the metal plates formed thereon are enabled to act as an evanescent waveguide. The second portion of the dielectric block and the metal plates formed thereon are enabled to act as a first resonator. The third portion of the dielectric block and the metal plates formed thereon are enabled to act as a second resonator. The metal plates include an inductive stub formed on the surface of the first portion of the dielectric block.

摘要翻译： 公开了一种具有优异机械强度的高度紧凑的带通滤波器。 根据本发明的带通滤波器采用基本上为矩形棱柱形状的介电块，该绝缘块由位于介质块的第一横截面之间的第一部分和基本上平行于第一截面的介质块的第二横截面构成， 第二部分和第三部分由形成在介质块表面上的第一部分和金属板分隔开。 介质块和形成在其上的金属板的第一部分能够用作ev逝波导。 介质块的第二部分和其上形成的金属板能够用作第一谐振器。 介质块和形成在其上的金属板的第三部分能够用作第二谐振器。 金属板包括形成在介质块的第一部分的表面上的电感短截线。

公开(公告)号：US06714103B2

公开(公告)日：2004-03-30

申请号：US10005724

申请日：2001-11-02

申请人： Arun Chandra Kundu

发明人： Arun Chandra Kundu

IPC分类号： H01P120

CPC分类号： H01P1/2084 ,  H01P1/201

摘要： A highly compact and easily fabricated band pass filter is disclosed. A band pass filter according to the present invention employs a first half-wave (&lgr;/2) resonator having a first open end on which an input terminal is formed and a second open end opposite to the first open end, a second half-wave (&lgr;/2) resonator having a third open end on which an output terminal is formed and a fourth open end opposite to the third open end, and an evanescent waveguide interposed between the second open end of the first resonator and the fourth open end of the second resonator. The first half-wave (&lgr;/2) resonator, the second half-wave (&lgr;/2) resonator, and the evanescent waveguide being single-unit. An air gap does not have to be formed by mounting components on a printed circuit board. Therefore, the overall size of the band pass filter can be miniaturized and fabrication of the band pass filter is simplified.

摘要翻译： 公开了一种非常紧凑且容易制造的带通滤波器。 根据本发明的带通滤波器采用具有第一开口端的第一半波（λ/ 2）谐振器，其上形成有输入端子，第二开口端与第一开路端相对，第二半波 （λ/ 2）谐振器，其具有形成有输出端子的第三开口端和与第三开口端相反的第四开口端，以及插入在第一谐振器的第二开路端和第一开口端之间的ev逝波导管， 第二谐振器。 第一个半波（λ/ 2）谐振器，第二个半波（λ/ 2）谐振器和ev逝波导是单个单元。 不必通过将组件安装在印刷电路板上来形成气隙。 因此，带通滤波器的总体尺寸可以小型化，并且带通滤波器的制造被简化。

公开(公告)号：US06563402B2

公开(公告)日：2003-05-13

申请号：US09870441

申请日：2001-05-30

申请人： Arun Chandra Kundu

发明人： Arun Chandra Kundu

IPC分类号： H01P120

CPC分类号： H01P1/20

摘要： A highly compact band pass filter that reliably achieves desired characteristic is disclosed. A band pass filter according to the present invention employs first and second disk resonators having exciting electrodes formed on one side surface thereof, an evanescent waveguide interposed between the first and second disk resonators, and a capacitive stub formed on other side surfaces of the first and second disk resonators. The capacitive stub reduces the size of the band pass filter because a resonant frequency of the disk resonators is lowered by the capacitive stub. Further, the capacitive stub enhances the mechanical strength of the band pass filter because a coupling constant k between the disk resonators is lowered by the capacitive stub.

公开(公告)号：US06828880B2

公开(公告)日：2004-12-07

申请号：US10236416

申请日：2002-09-06

申请人： Arun Chandra Kundu

发明人： Arun Chandra Kundu

IPC分类号： H01P120

CPC分类号： H01P1/201

摘要： A highly compact band pass filter that has excellent mechanical strength is disclosed. A band pass filter according to the present invention employs a dielectric block of substantially rectangular prismatic shape constituted of a first portion lying between a first cross-section of the dielectric block and a second cross-section of the dielectric block substantially parallel to the first cross-section and second and third portions divided by the first portion and metal plates formed on surfaces of the dielectric block. The first portion of the dielectric block and the metal plates formed thereon are enabled to act as an evanescent waveguide. The second portion of the dielectric block and the metal plates formed thereon are enabled to act as a first resonator. The third portion of the dielectric block and the metal plates formed thereon are enabled to act as a second resonator. The metal plates include at least one exciting electrode formed on a first surface of the dielectric block which has the widest area. Thus a wide band characteristics can be obtained whereas the very thin dielectric block is used. Further, a high unloaded quality factor (Q0) can be obtained because the radiation loss is lowered when the thickness of the dielectric block is reduced.

摘要翻译： 公开了一种具有优异机械强度的高度紧凑的带通滤波器。 根据本发明的带通滤波器采用基本上为矩形棱柱形状的介电块，该绝缘块由位于介质块的第一截面之间的第一部分和基本上平行于第一十字的介质块的第二横截面构成 并且由形成在介质块的表面上的第一部分和金属板划分的第二和第三部分。 介质块和形成在其上的金属板的第一部分能够用作ev逝波导。 介质块的第二部分和其上形成的金属板能够用作第一谐振器。 介质块和形成在其上的金属板的第三部分能够用作第二谐振器。 金属板包括形成在介质块的具有​​最宽面积的第一表面上的至少一个激励电极。 因此，可以获得宽带特性，而使用非常薄的介电块。 此外，由于当介质块的厚度减小时辐射损耗降低，因此可以获得高的卸载品质因数（Q0）。

公开(公告)号：US06825740B2

公开(公告)日：2004-11-30

申请号：US10071724

申请日：2002-02-08

申请人： Arun Chandra Kundu

发明人： Arun Chandra Kundu

IPC分类号： H01P120

CPC分类号： H01P7/105 ,  H01P1/2002

摘要： Thin type TEM dual-mode rectangular-planar dielectric waveguide bandpass filter is disclosed. The bandpass filter disclosed in the specification is constituted of a dielectric block 11 having a top surface, a bottom surface and first to fourth side surfaces, a metal plate 12 to be in a floating state substantially entirely formed on the top surface of the dielectric block 11, a metal plate 13 to be grounded formed on the bottom surface of the dielectric block 11, and exciting electrodes 14 and 15 formed on the bottom surface of the dielectric block 11. The metal plate 13 has a removed portion 16 exposing a part of the bottom surface of the dielectric block 11. The removed portion 16 destroys the symmetry of the resonator structure of each mode so that a coupling between the dual-mode is provided. According to this structure, because the exciting electrodes 14 and 15 are formed on the bottom surface of the dielectric block 11, thickness of the dielectric block 11 can be easily reduced.

摘要翻译： 公开了薄型TEM双模矩形介质波导带通滤波器。本说明书中公开的带通滤波器由具有顶表面，底表面和第一至第四侧表面的介质块11，金属板12至 处于基本上完全形成在介质块11的顶表面上的浮动状态，形成在介质块11的底表面上的待接地金属板13，以及形成在电介质块11的底表面上的激励电极14和15 金属板13具有暴露介质块11的底表面的一部分的去除部分16.去除部分16破坏了每个模式的谐振器结构的对称性，使得提供了双模式之间的耦合 。 根据该结构，由于在介质块11的底面形成有激励电极14,15，因此能够容易地降低介质块11的厚度。

公开(公告)号：US06621381B1

公开(公告)日：2003-09-16

申请号：US09716204

申请日：2000-11-21

申请人： Arun Chandra Kundu ,  Kenji Endou

发明人： Arun Chandra Kundu ,  Kenji Endou

IPC分类号： H01P120

CPC分类号： H01P7/105 ,  H01P1/2002

摘要： A TEM mode &lgr;/4 dielectric resonator includes a rectangular dielectric block having a top planar surface, a bottom planar surface and four side surfaces, a first metal layer coated on the top planar surface, a second metal layer coated on the bottom planar surface, and a third metal layer coated on one of the four side surfaces.

摘要翻译： TEM模式lambd / 4介电谐振器包括：具有顶部平坦表面，底部平面表面和四个侧表面的矩形介质块，涂覆在顶部平坦表面上的第一金属层，涂覆在底部平坦表面上的第二金属层， 以及涂覆在四个侧表面之一上的第三金属层。

公开(公告)号：US06326865B1

公开(公告)日：2001-12-04

申请号：US09532258

申请日：2000-03-22

申请人： Arun Chandra Kundu ,  Ikuo Awai

发明人： Arun Chandra Kundu ,  Ikuo Awai

IPC分类号： H01P120

CPC分类号： H01P1/20381 ,  H01P1/2135

摘要： In a dual-mode filter, this invention is capable of optionally setting an attenuation pole frequency with maintaining a passbandwidth of the filter by selecting a combination of an angle between input/output ports and a size of a stub perturbation. The dual-mode filter includes a circular resonator formed on a dielectric substrate, a pair of input/output ports connected to the circular resonator through a capacitance formed on the substrate at a symmetrical position with respect to a symmetry plane passing through a center of the circular shape of the circular resonator, and stub poles are formed on the substrate radially extending along the symmetry plane from opposite positions of the circular resonator in the diametrical direction with each other. The pair of input/output ports are formed with defining an angle different from a right angle therebetween. When the angle between the pair of input/output ports is smaller or greater than 90°, an attenuation pole frequency can optionally be set by this angle and the size of the stub perturbation.

摘要翻译： 在双模式滤波器中，本发明能够可选地通过选择输入/输出端口之间的角度和短截线扰动的大小的组合来保持滤波器的通带宽度来设置衰减极点频率。 双模式滤波器包括形成在电介质基板上的圆形谐振器，一对输入/输出端口，该输入/输出端口通过形成在基板上的电容相对于通过中心的对称平面的对称位置连接到圆形谐振器 圆形谐振器的圆形形状，并且在沿着对称平面的径向延伸的基板上形成短截线，所述短轴彼此在直径方向上与圆形谐振器的相对位置相对。 一对输入/输出端口形成为限定与它们之间的直角不同的角度。 当一对输入/输出端口之间的角度小于或大于90°时，衰减极点频率可以可选地通过该角度和短截线扰动的大小来设置。

公开(公告)号：US07312676B2

公开(公告)日：2007-12-25

申请号：US11173674

申请日：2005-07-01

申请人： Arun Chandra Kundu

发明人： Arun Chandra Kundu

IPC分类号： H01P1/203

CPC分类号： H01P1/20345 ,  H03H7/0123 ,  H03H7/1708 ,  H03H7/1725 ,  H03H7/1758 ,  H03H7/1791 ,  H03H2001/0085

摘要： A filter comprises a band pass filter that may have a first resonator, a second resonator and a coupling between the first resonator and the second resonator. The coupling may be controlled by at least one of (i) a spacing between the first resonator and the second resonator, and (ii) a shunt inductance coupled to the coupling.

摘要翻译： 滤波器包括可以具有第一谐振器，第二谐振器和第一谐振器与第二谐振器之间的耦合的带通滤波器。 耦合可以由（i）第一谐振器和第二谐振器之间的间隔和（ii）耦合到耦合的分流电感中的至少一个来控​​制。

公开(公告)号：US06661314B2

公开(公告)日：2003-12-09

申请号：US10000602

申请日：2001-10-23

申请人： Arun Chandra Kundu

发明人： Arun Chandra Kundu

IPC分类号： H01P120

CPC分类号： H01P1/2088 ,  H01P1/201 ,  H01P7/10

摘要： A highly compact band pass filter that has excellent mechanical strength is disclosed. A band pass filter according to the present invention employs a dielectric block of substantially rectangular prismatic shape constituted of a first portion lying between a first cross-section of the dielectric block and a second cross-section of the dielectric block substantially parallel to the first cross-section and second and third portions divided by the first portion and metal plates formed on the surfaces of the dielectric block. The first portion of the dielectric block and the metal plates formed thereon are enabled to act as an evanescent waveguide. The second portion of the dielectric block and the metal plates formed thereon are enabled to act as a first resonator. The third portion of the dielectric block and the metal plates formed thereon are enabled to act as a second resonator. The metal plates include a capacitive stub formed on a first surface of the dielectric block which is substantially perpendicular to the cross-sections.

摘要翻译： 公开了一种具有优异机械强度的高度紧凑的带通滤波器。 根据本发明的带通滤波器采用基本上为矩形棱柱形状的介电块，该绝缘块由位于介质块的第一截面之间的第一部分和基本上平行于第一十字的介质块的第二横截面构成 并且第二和第三部分由形成在介质块表面上的第一部分和金属板分隔开。 介质块和形成在其上的金属板的第一部分能够用作ev逝波导。 介质块的第二部分和其上形成的金属板能够用作第一谐振器。 介质块和形成在其上的金属板的第三部分能够用作第二谐振器。 金属板包括形成在介质块的基本上垂直于横截面的第一表面上的电容性短截线。