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公开(公告)号：US10003115B2
公开(公告)日：2018-06-19
申请号：US15374143
申请日：2016-12-09
Applicant: Fujikura Ltd.
Inventor： Yusuke Uemichi
CPC classification number: H01P1/268 , H01P1/222 , H01P1/264 , H01P5/107 , H01P11/001 , H03H7/24 , H03H7/383
Abstract: A terminator has an upper dielectric layer provided on an upper broad wall of a post-wall waveguide, and a microstrip line (MSL) provided on the upper dielectric layer. A blind via has one end thereof connected with one end of the MSL and is inserted inside the post-wall waveguide. A chip resistor has one end thereof connected with the other end of the MSL and has the other end thereof connected with the upper broad wall.
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公开(公告)号：US09812755B2
公开(公告)日：2017-11-07
申请号：US14749839
申请日：2015-06-25
Applicant: FUJIKURA LTD.
Inventor： Yusuke Uemichi
CPC classification number: H01P5/107 , H01L2224/16227 , H01L2224/48091 , H01L2224/48227 , H01L2924/15153 , H01L2924/15311 , H01P3/003 , H01P3/121 , H01P5/103
Abstract: A mode converter includes a substrate including a first main surface and a second main surface, a first ground conductor layer formed on the first main surface, a second ground conductor layer formed on the second main surface, a plane circuit that is formed on the first main surface and propagates a high frequency, a pin that is connected to the plane circuit, is formed inside a through-hole which penetrate from the first main surface to the second main surface, and communicates with the first main face and the second main surface, and an anti-pad that is formed between an end portion of the pin exposed in the second main surface and the second ground conductor layer.
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公开(公告)号：US20160380331A1
公开(公告)日：2016-12-29
申请号：US15189411
申请日：2016-06-22
Applicant: FUJIKURA LTD.
Inventor： Yusuke Uemichi
CPC classification number: H01P5/182
Abstract: In a directional coupler, a rectangular waveguide includes a second narrow wall and has a width varying part resulting from the second narrow wall protruding toward a first narrow wall, the width varying part including at least a portion of an opening, the protruding part protruding by a protrusion amount larger at the center of the width varying part than at both ends thereof.
Abstract translation: 在定向耦合器中，矩形波导包括第二窄壁，并具有从第二窄壁向第一窄壁突出的宽度变化部分，宽度变化部分包括至少一部分开口，突出部分突出于 在宽度变化部分的中心处比在其两端更大的突出量。
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公开(公告)号：US12224727B2
公开(公告)日：2025-02-11
申请号：US18273904
申请日：2023-02-07
Applicant: Fujikura Ltd.
Inventor： Yusuke Uemichi
IPC: H03H11/16
Abstract: A digital phase shifter includes a first row, a second row arranged to extend in parallel to the first row, and a connection unit electrically connecting one ends of the first and second rows. Each of the first and second rows is configured by connecting a plurality of digital phase shift circuits in cascade, and each digital phase shift circuit includes an outer line and the like. For the digital phase shift circuits adjacent to each other in each of the first and second rows, outer lines adjacent to each other are separated, a first ground conductor and a second ground conductor adjacent to each other are separated, and positional relationships of the outer line to a signal line are reversed. A plurality of the outer lines included in the first row are not adjacent to a plurality of the outer lines included in the second row.
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公开(公告)号：US12206375B2
公开(公告)日：2025-01-21
申请号：US18018357
申请日：2022-08-18
Applicant: Fujikura Ltd.
Inventor： Yusuke Uemichi
Abstract: A digital phase shift circuit includes: a signal line that extends in a predetermined direction; a first inner line that is separated from a first side of the signal line; a second inner line that is separated from a second side of the signal line; an outer line that is provided at a position which is farther from the signal line than the first inner line or the second inner line on a first side or a second side; a first grounding conductor that is provided at each of first ends of the first inner line, the second inner line, and the outer line; a second grounding conductor that is provided at a second end of the outer line; a first electronic switch that is provided between a second end of the first inner line and the second grounding conductor; and a second electronic switch that is provided between a second end of the second inner line and the second grounding conductor.
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Patent Agency Ranking
公开(公告)号：US20240429897A1
公开(公告)日：2024-12-26
申请号：US18262618
申请日：2022-12-27
Applicant: Fujikura Ltd.
Inventor： Yusuke Uemichi
IPC: H03H11/16
Abstract: A digital phase shift circuit includes: a basic phase shift circuit including a signal line, a pair of inner lines provided on both sides of the signal line, a pair of outer lines provided outside of the inner lines, a first grounding conductor connected to one ends of the pair of inner lines and the pair of outer lines, a second grounding conductor connected to the other ends of the pair of outer lines, and a pair of electronic switches provided between the other ends of the pair of inner lines and the second grounding conductor; and an output circuit configured to decrease an output load of the basic phase shift circuit in comparison with an input load thereof.
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公开(公告)号：US20240413512A1
公开(公告)日：2024-12-12
申请号：US18274050
申请日：2022-12-28
Applicant: Fujikura Ltd.
Inventor： Yusuke Uemichi
Abstract: A digital phase shifter includes a bend-type connection portion configured to connect a first digital phase shift circuit located at an end of a first digital phase shift circuit group and a second digital phase shift circuit located at an end of a second digital phase shift circuit group and include a third digital phase shift circuit. A capacitor is connected in parallel to at least one of a first connection line of a first connection portion, a first connection line of a second connection portion, a region in a vicinity of a connection position between two digital phase shift circuits constituting a first digital phase circuit group, and a region in a vicinity of a connection position between two adjacent digital phase shift circuits constituting a second digital phase circuit group.
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公开(公告)号：US20240258997A1
公开(公告)日：2024-08-01
申请号：US18018332
申请日：2022-08-09
Applicant: Fujikura Ltd.
Inventor： Yusuke Uemichi
IPC: H03H11/16
CPC classification number: H03H11/16
Abstract: A digital phase shifter in which a plurality of digital phase shift circuits are connected in cascade. One of the digital phase shift circuits includes at least a signal line, a pair of inner lines provided at both sides of the signal line, a pair of outer lines provided outside of the pair of inner lines, a first ground conductor connected to each first ends of the pair of inner lines and the pair of outer lines, a second ground conductor connected to each second ends of the pair of outer lines, and a pair of electronic switches provided between each of the second ends of the pair of inner lines and the second ground conductor. The pair of outer lines adjacent to each other are separated between the digital phase shift circuits adjacent to each other and the first ground conductor and the second ground conductor adjacent to each other are separated between the digital phase shift circuits adjacent to each other.
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公开(公告)号：US20230216165A1
公开(公告)日：2023-07-06
申请号：US18019017
申请日：2021-03-22
Applicant: Fujikura Ltd.
Inventor： Yusuke Uemichi
CPC classification number: H01P1/20345 , H01P3/081 , H01P7/082
Abstract: An object of this invention is to reduce the size of a filter device. Provided is a filter device (1) including: a substrate (11) including a first main surface and a second main surface (111, 112); strip-shaped conductors (12a1 to 12a5) provided to the first main surface (111); and a ground conductor layer (13) provided at least to the second main surface (112), the second main surface (112) having a recessed portion (11ai) provided for each strip-shaped conductor (12ai), the recessed portion (11ai) overlapping the strip-shaped conductor (12ai) in plan view and having a surface covered with the ground conductor layer (13).
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公开(公告)号：US20220013880A1
公开(公告)日：2022-01-13
申请号：US17431221
申请日：2020-04-07
Applicant: FUJIKURA LTD.
Inventor： Yusuke Uemichi
Abstract: An aspect of the present invention reduces loss that may occur in cases where electromagnetic waves are guided from one main surface side of a substrate to the other main surface side of the substrate. A waveguide device (10, 10A, 20) includes: a substrate (11); a first conductor layer (12A) and a second conductor layer (12B) which are provided on both main surfaces of the substrate, respectively; a main conductor post (MP) which penetrates between the both main surfaces; and one or more sub-conductor posts (SP) which penetrate between the both main surfaces and which, together with the main conductor post, guide a TEM mode or a quasi-TEM mode.
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