公开(公告)号：US20180342804A1

公开(公告)日：2018-11-29

申请号：US15771546

申请日：2016-09-23

申请人： FUJIKURA LTD.

发明人： Yuta Hasegawa ,  Ning Guan

IPC分类号： H01Q3/26 ,  H01Q3/42

摘要： Provided is a phased array antenna in which a delay time of a radio frequency signal supplied to each antenna element is not dependent on frequency. Each feeding circuit (Fi) of the phased array antenna (1) includes: a time delay element (TDi) configured to impart a time delay Δti to a sum signal VIF+LO(t) which is obtained by adding an intermediate frequency signal VIF(t) and a local signal VLO(t); a demultiplexer (DPi) configured to demultiplex a resulting delayed sum signal VIF+LO(t−Δti) so as to provide a delayed intermediate frequency signal VIF(t−Δti) and a delayed local signal VLO(t−Δti); and a transmission mixer (TMXi) configured to multiply the delayed intermediate frequency signal VIF(t−Δti) by the delayed local signal VLO(t−Δti) so as to provide a delayed radio frequency signal VRF(t−Δti), each feeding circuit Fi being configured to supply the delayed radio frequency signal VRF(t−Δti) to a corresponding antenna element (Ai).

公开(公告)号：US09935372B2

公开(公告)日：2018-04-03

申请号：US14766838

申请日：2014-02-28

申请人： FUJIKURA LTD.

发明人： Yuichiro Yamaguchi ,  Hiroshi Chiba ,  Hiroiku Tayama ,  Ning Guan

IPC分类号： H01Q7/00 ,  H01Q21/28 ,  H01Q1/32 ,  H01Q5/00 ,  H01Q1/52 ,  H01Q21/06 ,  H01Q21/30 ,  H01Q5/385 ,  H01Q21/00

CPC分类号： H01Q7/00 ,  H01Q1/3275 ,  H01Q1/52 ,  H01Q5/385 ,  H01Q21/0087 ,  H01Q21/06 ,  H01Q21/28 ,  H01Q21/30

摘要： An integrated antenna (1) includes: a first loop antenna (11) having a first annular antenna element (11a); and a second loop antenna (13) having a second annular antenna element (13). The second annular antenna element (13) is arranged, on a surface identical to that where the first annular antenna element (13a) is arranged, so as to surround the first annular antenna element (13a).

公开(公告)号：US20170301981A1

公开(公告)日：2017-10-19

申请号：US15509138

申请日：2016-02-04

申请人： FUJIKURA LTD.

发明人： Yoshihiro Niihara ,  Yuichiro Yamaguchi ,  Hiroshi Chiba ,  Ning Guan ,  Hiroiku Tayama

IPC分类号： H01Q1/32 ,  H01Q9/42 ,  H01Q9/16

CPC分类号： H01Q1/3275 ,  H01Q1/36 ,  H01Q1/38 ,  H01Q7/00 ,  H01Q9/16 ,  H01Q9/28 ,  H01Q9/285 ,  H01Q9/42

摘要： In an on-vehicle antenna device (1), an on-vehicle antenna device (10) which is provided at an end part of a roof (20) includes an antenna (11) which has antenna elements (14, 15) drawn out from one feed point (13a) in a first direction and drawn out from another feed point (13b) in a second direction. The first direction is direction intersecting with a horizontal plane in accordance with the on-vehicle antenna device (10) is mounted on a vehicle body (1).

公开(公告)号：US09509057B2

公开(公告)日：2016-11-29

申请号：US14908802

申请日：2014-05-16

申请人： FUJIKURA LTD.

发明人： Ryohei Hosono ,  Ning Guan ,  Masahiro Iwamura ,  Yusuke Nakatani

IPC分类号： H01Q13/00 ,  H01Q13/20 ,  H01P5/107 ,  H01Q1/38

CPC分类号： H01Q13/206 ,  H01P5/107 ,  H01Q1/38

摘要： An antenna includes a dielectric substrate, an antenna conductor, a ground conductor, a waveguide tube, a shield, and short-circuit portions. The shield is provided with a cut having a reverse-taper shape whose width becomes greater from an open end of the cut to an inward end of the cut. The short-circuit portions are provided along a whole periphery of the shield except for a portion provided with the cut.

摘要翻译： 天线包括电介质基板，天线导体，接地导体，波导管，屏蔽和短路部分。 该护罩设置有具有从切口的开口端到切口内端的宽度变大的倒锥形形状的切口。 除了设置有切口的部分之外，沿着护罩的整个周边设置短路部。

公开(公告)号：US09509055B2

公开(公告)日：2016-11-29

申请号：US14158085

申请日：2014-01-17

申请人： FUJIKURA LTD.

发明人： Ning Guan

IPC分类号： H01Q9/40 ,  H01Q5/50 ,  H01P1/203

CPC分类号： H01Q9/40 ,  H01P1/20381 ,  H01P1/2039 ,  H01Q5/50

摘要： An antenna (1) including a dielectric substrate (10), an antenna element (11), a feed line (12), and a ground plate (13) is configured such that the feed line (12) and the ground plate (13) which face each other via the dielectric substrate (10) constitute a microstrip line which functions as a BRF.

摘要翻译： 包括电介质基板（10），天线元件（11），馈线（12）和接地板（13）的天线（1）被构造成使得馈线（12）和接地板 ）通过电介质基板（10）彼此面对构成用作BRF的微带线。

公开(公告)号：US09425662B2

公开(公告)日：2016-08-23

申请号：US14290444

申请日：2014-05-29

申请人： FUJIKURA LTD.

发明人： Takashi Shinmoto ,  Shotaro Yoshida ,  Ning Guan

IPC分类号： H02K3/14 ,  H02K3/00 ,  H01B1/02 ,  H02K3/04 ,  G06F17/50 ,  H02K3/02 ,  H01F5/00 ,  H01B7/30

CPC分类号： H02K3/00 ,  G06F17/50 ,  H01B1/023 ,  H01B1/026 ,  H01B7/30 ,  H01F5/00 ,  H02K3/02 ,  H02K3/04 ,  Y02T10/82

摘要： An electric wire includes a conductive portion 11 made of a material having a volume resistivity higher than that of copper, wherein the volume resistivity of the conductive portion is specified so that, in a frequency range in which the electric wire is used, a ratio of AC resistance of the conductive portion 11 to AC resistance of reference copper wire is less than 1.

摘要翻译： 电线包括由体积电阻率高于铜的材料制成的导电部分11，其中规定导电部分的体积电阻率，使得在使用电线的频率范围内， 导电部分11对参考铜线的交流电阻的交流电阻小于1。

公开(公告)号：US20160190703A1

公开(公告)日：2016-06-30

申请号：US14908802

申请日：2014-05-16

申请人： FUJIKURA LTD.

发明人： Ryohei Hosono ,  Ning Guan ,  Masahiro Iwamura ,  Yusuke Nakatani

IPC分类号： H01Q13/20 ,  H01Q1/38

CPC分类号： H01Q13/206 ,  H01P5/107 ,  H01Q1/38

摘要： An antenna includes a dielectric substrate, an antenna conductor, a ground conductor, a waveguide tube, a shield, and short-circuit portions. The shield is provided with a cut having a reverse-taper shape whose width becomes greater from an open end of the cut to an inward end of the cut. The short-circuit portions are provided along a whole periphery of the shield except for a portion provided with the cut.

摘要翻译： 天线包括电介质基板，天线导体，接地导体，波导管，屏蔽和短路部分。 该护罩设置有具有从切口的开口端到切口内端的宽度变大的倒锥形形状的切口。 除了设置有切口的部分之外，沿着护罩的整个周边设置短路部。

公开(公告)号：US11942706B2

公开(公告)日：2024-03-26

申请号：US17430811

申请日：2020-07-08

申请人： FUJIKURA LTD.

发明人： Shailendra Kaushal ,  Ning Guan ,  Asahi Kan

IPC分类号： H01Q9/28 ,  H01Q9/04 ,  H01Q9/40 ,  H01Q21/08 ,  H01Q21/29

CPC分类号： H01Q9/045 ,  H01Q9/28 ,  H01Q9/40 ,  H01Q21/08 ,  H01Q21/29

摘要： An antenna includes a dielectric layer, a conductive ground layer formed on a first main surface of the dielectric layer, and radiation elements formed on a second main surface of the dielectric layer and are conductive. The first radiation element includes a first non-uniform width part that has a width in a direction parallel to a first side in a linear shape opposed to a first vertex, and the width of the first non-uniform width part gradually decreases in a direction from the first side to the first vertex. The second radiation element includes a second non-uniform width part that has a width in a direction parallel to a second side in a linear shape opposed to a second vertex, and the width of the second non-uniform width part gradually decreases in a direction from the second side to the second vertex.

公开(公告)号：US11804661B2

公开(公告)日：2023-10-31

申请号：US17430004

申请日：2020-03-18

申请人： FUJIKURA LTD.

发明人： Shailendra Kaushal ,  Ning Guan ,  Asahi Kan

IPC分类号： H01Q1/38 ,  H01Q21/00 ,  H01Q13/08 ,  H01Q21/06

CPC分类号： H01Q21/0075 ,  H01Q1/38 ,  H01Q13/08 ,  H01Q21/06

摘要： Wiring and a wiring path of a feed line for feeding power to a radiation element is simplified. An array antenna includes a first conductive pattern layer, first dielectric layer, conductive ground layer, second dielectric layer, second conductive pattern layer, third dielectric layer, and radiation element pattern layer that are layered in this order. The radiation element pattern layer includes radiation element pairs arranged in a two-dimensional array pattern. Each of the radiation element pairs includes a first radiation element and a second radiation element arranged side by side with an interval therebetween. The second conductive pattern layer includes branch feed lines arranged in a two-dimensional array pattern to correspond to the radiation element pairs, respectively. The first conductive pattern layer includes feed lines corresponding to the branch feed lines, respectively.

公开(公告)号：US11764468B2

公开(公告)日：2023-09-19

申请号：US17468586

申请日：2021-09-07

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION ,  FUJIKURA LTD

发明人： Alberto Valdes Garcia ,  Arun Paidimarri ,  Bodhisatwa Sadhu ,  Jean-Olivier Plouchart ,  Xiaoxiong Gu ,  Christian Wilhelmus Baks ,  Yo Yamaguchi ,  Kiyoshi Kobayashi ,  Yoshiharu Fujisaku ,  Ning Guan

IPC分类号： H04B7/06 ,  H01Q3/26

CPC分类号： H01Q3/2617 ,  H04B7/0617

摘要： A phased array antenna includes an antenna array substrate having a plurality of antenna elements. At least two beamformers are coupled to the plurality of antenna elements. At least two filters support different frequency bands and are respectively coupled to the at least two beamformers. A frequency converter is coupled to the at least two filters, the frequency converter including one intermediate frequency (IF) port and at least two radio frequency (RF) ports. The one IF port of the frequency converter is configured to support the at least two beamformers via the at least two RF ports. A first beamformer of the at least two beamformers is coupled to a first filter of the at least two filters to form a first beam in a direction different than a second beamformer of the first two beamformers coupled to a second filter of the at least two filters.