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公开(公告)号：US12027741B2
公开(公告)日：2024-07-02
申请号：US17895670
申请日：2022-08-25
CPC分类号： H01P1/2002 , H01P1/201 , H01P1/2056 , H01P3/16
摘要： Embodiments of this application disclose a dielectric filter and a communication device. In one example, the dielectric filter includes: a first dielectric block and a second dielectric block that are stacked up, where a first surface of the first dielectric block is opposite to a second surface of the second dielectric block; a first blind hole, a first through hole, and two or more resonance through holes whose openings are located on the first surface of the first dielectric block, and a second through hole whose opening is located on the second surface of the second dielectric block. A metal layer on the first surface of the first dielectric block is connected to a metal layer on the second surface of the second dielectric block.
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公开(公告)号：US20180277915A1
公开(公告)日：2018-09-27
申请号：US15906320
申请日：2018-02-27
发明人： John Kenneth Darling
CPC分类号： H01P1/2053 , H01P1/2056 , H01P7/04
摘要： Disclosed are embodiments of ceramic radiofrequency filters advantageous as RF components. The ceramic filters can include a ceramic stepped impedance resonator, wherein the inner diameter of the ceramic stepped impedance resonator can vary from one end to another end. The inner diameter can be, for example, tapered, sectioned, or stair-stepped in order to provide different impedances in the ceramic resonator.
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公开(公告)号：US20180175471A1
公开(公告)日：2018-06-21
申请号：US15384320
申请日：2016-12-20
发明人： Shin-Hui CHOU , Chin-Hao CHEN , Yue-Cheng JHONG , Yi-Ching LIN
IPC分类号： H01P1/205
CPC分类号： H01P1/2056 , H01P1/2002 , H01P1/205 , H01P7/065
摘要： A filter structure improvement includes a substrate, resonance layers, a grounded layer, a pattern layer, an input electrode, and an output electrode. The substrate has resonance holes in which the resonance layers are disposed. One end of the resonance hole is on the open surface and the other end of the resonance hole is on the short-circuit surface. The grounded layer is on the short-circuit surface, top surface, bottom surface, and side surfaces and is electrically connected to the resonance layers to form a short-circuit end. The input and output electrodes, electrically isolated from the grounded layer, are on the bottom or open surface of the substrate. The pattern layer, resonance layers, and grounded layer are arranged to have electrical properties of a filter structure of mutual coupling such that a desired frequency band is obtained by adjusting the pattern layer and the lengths of the resonance layers.
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公开(公告)号：US09998163B2
公开(公告)日：2018-06-12
申请号：US14952615
申请日：2015-11-25
发明人： Bengui Yuan
CPC分类号： H04B1/38 , H01P1/2002 , H01P1/2056 , H01P1/2084 , H01P1/213 , H01P7/10 , H04B1/40
摘要： Embodiments relate to the field of technologies of components of communications devices, and provide a dielectric filter, which resolves a problem that a solid dielectric filter has a difficulty in implementing capacitive coupling. The dielectric filter includes at least two dielectric resonators, where each of the dielectric resonators includes a body made of a solid-state dielectric material, and an adjusting hole located on a surface of the body. The adjusting hole is a blind hole, configured to adjust a resonance frequency of the dielectric resonator on which the blind hole is located. The bodies of all the dielectric resonators included by the dielectric filter form a body of the dielectric filter.
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公开(公告)号：US20180131069A1
公开(公告)日：2018-05-10
申请号：US15797582
申请日：2017-10-30
申请人： LGS INNOVATIONS LLC
发明人： ALAN SCOTT BRANNON
CPC分类号： H01P11/007 , H01P1/201 , H01P1/2056
摘要： The present applications at least describes a method of making a tuned ceramic filter. The method includes printing an oversized pattern of ceramic material on a ceramic filter. The method also include removing, at a first tune location of the ceramic filter, a first amount of the ceramic material using a laser to shrink the oversized pattern. The method also includes comparing a coupling matrix of the ceramic filter after the removing step with a coupling matrix of a prototype of the ceramic filter. The method includes a step of generating a tune vector based upon a difference between the coupling matrix of the ceramic filter and the coupling matrix of the prototype filter. Further, the method includes a step of iteratively modifying the removing of the ceramic material using femto-second laser at the first tune location to have a coefficient of the tune vector corresponding to the first tune location to converge toward zero.
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公开(公告)号：US20180131064A1
公开(公告)日：2018-05-10
申请号：US15720266
申请日：2017-09-29
申请人： LGS INNOVATIONS LLC
IPC分类号： H01P1/205
CPC分类号： H01P1/2056 , H01P1/207
摘要： The application at least describes a tuning and measurement fixture. The fixture comprises a bottom plate including side surfaces, a top surface and a bottom surface. The bottom plate includes a window extending between the top and bottom surfaces. The window can expose a through-hole of a filter positioned in the fixture. In addition, the top surface of the filter includes a signal connection and a ground connection configured to communicate with the filter. The bottom surface of the filter includes an RF port configured to transmit electrical characteristics of the filter. A top plate of the filter includes a top and a bottom surface. The top plate is separated from the bottom plate by a predetermined height. The top plate includes a window extending between the top and bottom surfaces. The window exposes the through-hole of the filter held in the fixture. The application also describes a method of tuning and measuring a filter in a fixture.
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公开(公告)号：US09941563B2
公开(公告)日：2018-04-10
申请号：US14803684
申请日：2015-07-20
发明人： John Kenneth Darling
CPC分类号： H01P1/2053 , H01P1/2056 , H01P7/04
摘要： Disclosed are embodiments of ceramic radiofrequency filters advantageous as RF components. The ceramic filters can include a ceramic stepped impedance resonator, wherein the inner diameter of the ceramic stepped impedance resonator can vary from one end to another end. The inner diameter can be, for example, tapered, sectioned, or stair-stepped in order to provide different impedances in the ceramic resonator.
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公开(公告)号：US09799939B2
公开(公告)日：2017-10-24
申请号：US14790405
申请日：2015-07-02
发明人： Masayuki Kikuda , Hitoshi Tada , Yoshiki Yamada , Takahiro Okada
CPC分类号： H01P1/2056
摘要： A filtering device includes at least one dielectric resonant element, which includes a dielectric block, an outer conductor, and an inner conductor, a terminal disposed in a through hole of the dielectric resonant element from a front surface, a plate-shaped circuit element electrically coupled with the at least one dielectric resonant element via the terminal, and a substrate on which the at last one dielectric resonant element and the plate-shaped circuit element are mounted. The outer conductor is disposed so as to cover the back surface besides the peripheral surface of the dielectric block. The first end surface of the dielectric block includes a first electrode-free portion that electrically isolates the inner conductor from the outer conductor, and a second electrode-free portion that electrically isolates the inner conductor from the outer conductor.
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公开(公告)号：US09780428B2
公开(公告)日：2017-10-03
申请号：US14884532
申请日：2015-10-15
发明人： Bengui Yuan , Qiang Wang
CPC分类号： H01P1/2056 , H01P7/04 , H01P7/06 , H01P7/10
摘要： The present application provides a dielectric resonator, a dielectric filter, a base station and a method for fabricating the dielectric resonator or the dielectric filter. The dielectric resonator includes: a solid dielectric resonator body, a blind hole located on one side of the solid dielectric resonator body, a metalized layer covering both a surface of the solid dielectric resonator body and a surface of the blind hole, and a demetallized notch located at the metalized layer on the surface of the blind hole. The dielectric resonator provided in the present application can implement tuning of the dielectric resonator, and reduce impact on the resonance frequency of the dielectric resonator after the dielectric resonator is tuned, where the impact caused by that the demetallized notch is covered by a metal material in an assembly process of the dielectric resonator, and signal energy that is leaked from the notch is reduced.
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公开(公告)号：US20170141449A1
公开(公告)日：2017-05-18
申请号：US15318810
申请日：2015-06-23
申请人： UBE INDUSTRIES, LTD.
发明人： Nobuhiro HARADA , Yoshiaki FUJIYAMA
摘要： A dielectric contactless transmission device provided with a pair of ¼ wavelength dielectric resonance components (2, 3) having: dielectric blocks (20, 30) that have a first surface (20a), a second surface (20b), third to sixth surfaces (20c-20f) connecting the first surface (20a) and the second surface (20b), and a resonance hole (20g) for making the first surface (20a) and the second surface (20b) communicate; intra-resonance hole conductors (21, 31) covering the inner surface of the resonance hole (20g); external conductors (22, 32) covering the second surface (20b) and the third to sixth surfaces (20c-20f), the external conductors (22, 32) being connected to one end of the intra-resonance hole conductors; and coupling electrodes (23, 33) arranged on the first surface (20a) while being isolated from the external conductors (22, 32) and connected to the other end of the intra-resonance hole conductors (21, 31), the first surfaces (20a) being arranged facing each other so that the coupling electrodes (23, 33) of the pair of ¼ wavelength dielectric resonance components (2, 3) are capacitively coupled.
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