-
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.
-
公开(公告)号：US11923588B2
公开(公告)日：2024-03-05
申请号：US17377748
申请日：2021-07-16
发明人： Dunrong Li , Renhu Luo , Ze Yin , Jian Lu
CPC分类号： H01P1/2053 , H01P1/20381 , H01P7/06
摘要： A single-layer cross-coupling filter includes a cavity in which a receiving space is formed; an integrally formed resonant structure installed in the receiving space; and at least one partition wall. The resonant structure includes at least two rows of resonant units distributed along a signal transmission path. The at least two rows of resonant units are located in a same plane of the receiving space, and each row of the resonant units includes a plurality of resonators. The resonators on a same row are coupled and connected to form signal transmission, and at least two adjacent resonators in different rows are coupled and connected to realize cross-coupling.
-
公开(公告)号：US11894592B2
公开(公告)日：2024-02-06
申请号：US17753556
申请日：2020-09-14
申请人： Seiki Chiba , Mikio Waki , ZEON CORPORATION
发明人： Seiki Chiba , Mikio Waki , Keisuke Oguma , Shinji Ozawa
CPC分类号： H01P1/2002 , H01P1/2053 , H01P1/225 , H01P7/04
摘要： A high frequency filter A1 has frequency characteristics such that the amount of attenuation for an input electrical signal is smaller in a first frequency band f1 than in a second frequency band f2. The high frequency filter A1 is provided with a dielectric elastomer transducer 1 that includes a dielectric elastomer layer 13 and a pair of electrode layers 14 sandwiching the dielectric elastomer layer 13. The frequency characteristics are variable by the dielectric elastomer transducer 1. This configuration provides a high frequency filter having frequency characteristics that are variable and suitable for a lightweight and compact configuration.
-
公开(公告)号：US11626653B2
公开(公告)日：2023-04-11
申请号：US17303121
申请日：2021-05-20
摘要： A method of manufacturing a ceramic resonator radio frequency filter includes placing one or more first coaxial resonators on a printed circuit board, and placing one or more second coaxial resonators over the one or more first coaxial resonators so that the coaxial resonators are arranged in a stacked configuration on the printed circuit board. The method also includes electrically connecting the one or more first coaxial resonators and second coaxial resonators to the printed circuit board.
-
公开(公告)号：US11522259B2
公开(公告)日：2022-12-06
申请号：US17362140
申请日：2021-06-29
申请人： TDK CORPORATION
摘要： A multilayered filter device includes a multilayer stack, a band pass filter, a first band elimination filter, and a second band elimination filter. The band pass filter and the first and second band elimination filters are each constructed using the multilayer stack. The band pass filter includes a plurality of first resonators with open ends. Each band elimination filter includes a connection path, and a second resonator coupled to the connection path. The connection path includes an impedance transformer. The second resonator includes a conductor line constituting a distributed constant line.
-
公开(公告)号：US11444647B2
公开(公告)日：2022-09-13
申请号：US16899027
申请日：2020-06-11
发明人： Bengui Yuan
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 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.
-
公开(公告)号：US20220255206A1
公开(公告)日：2022-08-11
申请号：US17626907
申请日：2019-09-16
发明人： Dong Zhang , Matteo Cendamo , Marco Riva
摘要： Filter devices are provided herein. In some embodiments, a filter device includes resonators and a cover that is attached by adhesive tape to a housing that includes the resonators. In some embodiments, the filter device includes a tuning cover that overlaps the resonators and has cleaning holes therein. Moreover, in some embodiments, the filter device includes a wall inside the housing between a first of the resonators and a second of the resonators, and an average thickness of the wall is 3.0 millimeters or thinner. Related methods of manufacturing filter devices are also provided.
-
公开(公告)号：US11374296B2
公开(公告)日：2022-06-28
申请号：US16867933
申请日：2020-05-06
发明人： John Kenneth Darling
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.
-
公开(公告)号：US20220181759A1
公开(公告)日：2022-06-09
申请号：US17665736
申请日：2022-02-07
发明人： Dunrong LI , Renhu LUO , Ze YIN , Qiang LI
摘要： A cross-coupled filter includes a minimum resonant structure including four resonators. In the minimum resonant structure, two resonators in the same row form a group, and two resonators in the same row are capacitively mainly coupled or inductively mainly coupled; two resonators in the same column are electrically and magnetically hybrid coupled; and the coupling polarities of the two groups of resonators in the two rows of resonant units are opposite to each other and form at least a cross-coupling. The invention realizes miniaturization and light weight in structural characteristics, and realizes low loss and good harmonic characteristics in electrical performance.
-
公开(公告)号：US11145945B2
公开(公告)日：2021-10-12
申请号：US16800707
申请日：2020-02-25
发明人： Rongbiao Su , Zhou Chen , Ruoming Wang
摘要： A dielectric filter includes a plurality of resonators, wherein each resonator included in the plurality of resonators includes a tuning hole; and at least one stepped hole for adjusting capacitive coupling, wherein the at least one stepped hole is disposed between two adjacent resonators included in the plurality of the resonators, wherein the stepped hole comprises a large hole and a small through hole at a bottom center of the large hole, wherein a first sidewall and a first annular bottom of the large hole are configured with a metal conductive layer, and wherein at least one of a second sidewall of the small through hole and a second annular portion outside a bottom of the small through hole is not covered with the conductive layer.
-
-
-
-
-
-
-
-
-
搜索结果
969 条记录 (耗时 0.028 秒)
