公开(公告)号：EP3835853A1

公开(公告)日：2021-06-16

申请号：EP19848404.0

申请日：2019-08-09

申请人： BOE TECHNOLOGY GROUP CO., LTD. ,  Beijing BOE Optoelectronics Technology Co., Ltd.

发明人： LI, Liang ,  TING, Tienlun ,  WU, Jie ,  CAO, Xue ,  WANG, Ying ,  JIA, Haocheng ,  TANG, Cuiwei ,  CAI, Peizhi ,  CHE, Chuncheng

IPC分类号： G02F1/13 ,  G02F1/1343 ,  H01P1/18 ,  H01Q3/36

摘要： A liquid crystal phase shifter is provided, and includes a first substrate and a second substrate opposite to each other, and a liquid crystal layer between the first substrate and the second substrate. The first substrate includes a first base plate and a first electrode layer at a side of the first base plate proximal to the liquid crystal layer. The second substrate includes a second base plate and a second electrode layer at a side of the second base plate proximal to the liquid crystal layer. The first electrode layer includes a main body structure having a first side and a second side opposite to each other with respect to a length direction of the main body structure, and a plurality of branch structures connected to at least one of the first side and the second side of the main body structure.

公开(公告)号：EP3835852A1

公开(公告)日：2021-06-16

申请号：EP19847245.8

申请日：2019-08-08

申请人： BOE TECHNOLOGY GROUP CO., LTD. ,  Beijing Boe Sensor Technology Co., Ltd.

发明人： WANG, Ying ,  TING, Tienlun ,  WU, Jie ,  CAO, Xue ,  LI, Liang ,  JIA, Haocheng ,  CAI, Peizhi ,  CHE, Chuncheng

IPC分类号： G02F1/13 ,  G02F1/1343 ,  H01P1/18

摘要： A liquid crystal phase shifter, a liquid crystal antenna, a communication apparatus, and a method for operating a liquid crystal phase shifter are provided. The liquid crystal phase shifter includes a microwave transmission structure and a phase adjustment structure opposite to each other, and a liquid crystal layer between the microwave transmission structure and the phase adjustment structure; wherein the phase adjustment structure comprises a plurality of phase adjustment units; the plurality of phase adjustment units are configured to change a dielectric constant of the liquid crystal layer according to a voltage applied to the phase adjustment units and a voltage applied to the microwave transmission structure, so as to adjust a phase of a microwave signal; and phase shift amounts adjusted by the plurality of phase adjustment units are different from each other.

公开(公告)号：EP3195403B1

公开(公告)日：2021-06-02

申请号：EP15757416.1

申请日：2015-08-24

发明人： BORODULIN, Pavel ,  EL-HINNAWY, Nabil Abdel-Meguid ,  YOUNG, Robert Miles ,  KING, Matthew Russell ,  LEE, Michael J.

IPC分类号： H01L45/00 ,  H01P1/12 ,  H01P1/18

公开(公告)号：EP3823089A1

公开(公告)日：2021-05-19

申请号：EP19843956.4

申请日：2019-07-29

申请人： HUAWEI TECHNOLOGIES CO., LTD.

发明人： LEI, Fuwei ,  LIU, Xinming ,  LI, Maobin ,  LI, Weimin

IPC分类号： H01P1/18

摘要： This application relates to a phase shifter and a remote electrical tilt antenna including the foregoing phase shifter. The metal strip includes a cavity, a metal strip, a sliding dielectric, and a fastener, where the fastener fastens the metal strip in the cavity, so that a transmission portion of the metal strip is suspended in the cavity, requiring no metal strip to be disposed on a substrate, thereby reducing the signal energy loss of the substrate, decreasing the heat generated due to the signal energy loss, and lowering the requirements of the phase shifter on heat dissipation and temperature resistance of an internal mechanical part.

公开(公告)号：EP3785322A1

公开(公告)日：2021-03-03

申请号：EP19733175.4

申请日：2019-04-24

申请人： CommScope Technologies LLC

发明人： LI, Hong Hui ,  ZIMMERMAN, Martin L. ,  WU, Bo ,  WU, Ligang

IPC分类号： H01Q3/26 ,  G01R29/10 ,  H04B17/12 ,  H01P1/18

公开(公告)号：EP3776718A1

公开(公告)日：2021-02-17

申请号：EP19717592.0

申请日：2019-04-08

申请人： Heriot-Watt University

发明人： GOUSSETIS, George ,  MATEO-SEGURA, Carolina ,  ROTENBERG, Samuel ,  PODILCHAK, Symon ,  CONSTANTINIDES, Constantin

IPC分类号： H01P1/18 ,  H01P9/00 ,  H01P5/04

公开(公告)号：EP3745527A1

公开(公告)日：2020-12-02

申请号：EP19863992.4

申请日：2019-04-11

申请人： Truly Semiconductors Ltd.

发明人： LIU, Zhisheng ,  XU, Xiangzhan ,  WANG, Lixiong ,  HUANG, Yingqun ,  WANG, Huxin ,  ZAN, Duanqing ,  HE, Jiqiang

IPC分类号： H01P1/18 ,  H01P11/00 ,  H01Q3/36

摘要： The present disclosure provides a liquid crystal phase shifter, including a first substrate and a second substrate which are disposed oppositely, and a liquid crystal layer located between the first substrate and the second substrate. A first metal film layer is disposed on a side of the first substrate facing the second substrate. A second metal film layer is disposed on a side of the second substrate facing the first substrate. The first metal film layer and the second metal film layer arc both patterned metal film layers. The first substrate and the second substrate are both PCBs. The present disclosure further provides a liquid crystal antenna, including the abovementioned liquid crystal phase shifter. The present disclosure further provides a manufacturing method of a liquid crystal phase shifter, which is used for manufacturing the abovementioned liquid crystal phase shifter. In ultra-high-frequency wireless communications, the larger a dielectric constant and a dielectric loss value of a substrate material are, the higher the dielectric loss is, and the poorer signals are. The PCBs used in the present application are used as the substrates of the liquid crystal antenna. The dielectric constants and the dielectric loss of the PCBs are less than those of a glass substrate usually used by a liquid crystal panel, so that the PCBs are lower in dielectric loss, which is favorable for improving the performance of the liquid crystal antenna in ultra-high frequency band application.

公开(公告)号：EP3742551A1

公开(公告)日：2020-11-25

申请号：EP18907384.4

申请日：2018-02-22

申请人： Mitsubishi Electric Corporation

发明人： AKIMOTO, Shimpei ,  NISHIMOTO, Kengo ,  NISHIOKA, Yasuhiro

IPC分类号： H01Q3/26 ,  H01P1/18 ,  H01P5/08

摘要： An antenna device (4) includes a first phase shifter (24) having one end connected to a fourth terminal (23d) of a directional coupler (23); a second phase shifter (25) having one end connected to a first terminal (23a) of the directional coupler (23); a third phase shifter (26) having one end connected to a second terminal (23b) of the directional coupler (23); a first matching circuit (27) having one end connected to an other end of the second phase shifter (25) and having an other end connected to a first input/output terminal (11); and a second matching circuit (28) having one end connected to an other end of the third phase shifter (26) and having an other end connected to a second input/output terminal (12).

公开(公告)号：EP3713010A1

公开(公告)日：2020-09-23

申请号：EP19164038.2

申请日：2019-03-20

申请人： Nokia Solutions and Networks Oy

发明人： JUNTTILA, Mikko ,  NIEMELÄ, Antti-Heikki

IPC分类号： H01P1/18 ,  H01P5/16

摘要： Apparatus for processing radio frequency, RF, signals, wherein said apparatus comprises at least a first transmission line and a second transmission line, and an electrically conductive element that is capacitively coupled with said first transmission line and said second transmission line and that is translationally movably arranged with respect to at least one of said first transmission line and said second transmission line.

公开(公告)号：EP3660976A1

公开(公告)日：2020-06-03

申请号：EP19209693.1

申请日：2019-11-18

申请人： Nokia Technologies Oy

发明人： BULJA, Senad ,  KOPF, Rose ,  CAHILL, Robert ,  NOROOZIARAB, Maijd

IPC分类号： H01P1/18 ,  H01Q1/12 ,  H01Q1/36 ,  H01Q3/30 ,  H01Q3/46 ,  H01Q21/06 ,  G02F1/15

摘要： An antenna element includes a patch antenna and a microstrip line separated by an electrochromic material to tune the element. A reflectarray of a plurality of antenna elements is formed on a substrate. The dielectric permitivities of the electrochromic material may be controlled both during manufacture and during operation of the antenna to provide a phase shift to the antenna elements and beamform a signal radiated by the antenna. A bias line may be used to change a shape, direction or circular polarity of a beam radiating from the antenna.