公开(公告)号：US20210135327A1

公开(公告)日：2021-05-06

申请号：US16958750

申请日：2019-05-21

Applicant: Chengdu Tianma Micro-Electronics Co., Ltd.

Inventor： Donghua WANG ,  Yingru HU ,  Bo WU

IPC: H01P1/18 ,  H01Q1/22 ,  H01Q3/36

Abstract: Embodiments of the present application relate to electromagnetic waves and provide a liquid-crystal phase shifter and an antenna. A carrier frequency applicable to the liquid-crystal phase shifter can be adjusted, improving the compatibility of the liquid-crystal phase shifter. The liquid-crystal phase shifter comprises: at least one phase shift unit, the phase shift unit comprises a microstrip line, a phase controlled electrode, and two feed terminals; the microstrip line is located between a first substrate and a liquid crystal layer, the phase controlled electrode is located between a second substrate and the liquid crystal layer, and two ends of the microstrip line are respectively overlapped with the two feed terminals; the phase controlled electrode comprises at least two sub-electrodes provided at an interval, the microstrip line comprises effective lines corresponding to each sub-electrode, and each sub-electrode covers a corresponding effective line.

公开(公告)号：US20200343635A1

公开(公告)日：2020-10-29

申请号：US16959152

申请日：2019-05-21

Applicant: Chengdu Tianma Micro-Electronics Co., Ltd.

Inventor： Yingru HU ,  Bo WU ,  Dongquan HOU ,  Xuhui PENG

IPC: H01Q3/36 ,  G02F1/1339 ,  H01P1/18

Abstract: Provided are a liquid crystal phase shifting unit, a method for manufacturing the same, a liquid crystal phase shifter, and an antenna, which relate to the technical field of phase shifting. A liquid crystal filling region (6) is supported steadily by a support structure (4), which increases the transmission stability of a microwave signal. A space between a first substrate (1) and a second substrate (2) of the liquid crystal phase shifting unit includes the liquid crystal filling region (6). A microstrip line (3) is provided on a surface of the first substrate (1) facing towards the second substrate (2). An orthographic projection of the microstrip line (3) on the first substrate (1) is located in the liquid crystal filling region (6). The support structure (4) is provided between the first substrate (1) and the second substrate (3) and in the liquid crystal filling region (6). The orthographic projection of the support structure (4) on the first substrate (1) does not overlap the microstrip line (3), which is used for shifting a phase of a microwave signal.

公开(公告)号：US20210080765A1

公开(公告)日：2021-03-18

申请号：US16958735

申请日：2019-05-21

Applicant: Chengdu Tianma Micro-Electronics Co., Ltd.

Inventor： Yingru HU ,  Bo WU ,  Xuhui PENG

IPC: G02F1/13 ,  G02F1/1343 ,  G02F1/1333 ,  G02F1/1337 ,  H01P1/18

Abstract: Provided are a liquid crystal phase shifter and an antenna. The liquid crystal phase shifter includes a first substrate, a second substrate, a liquid crystal layer, and at least one phase shift unit. The first substrate includes a first flexible substrate and a first liquid crystal alignment layer located on a side of the first flexible substrate close to the second substrate. The second substrate includes a second flexible substrate and a second liquid crystal alignment layer located on a side of the second flexible substrate close to the first substrate. The phase shift unit includes a microstrip line and a phased electrode. The microstrip line is located between the first flexible substrate and the first liquid crystal alignment layer, and the phased electrode is located between the second flexible substrate and the second liquid crystal alignment layer.

公开(公告)号：US20200343634A1

公开(公告)日：2020-10-29

申请号：US16959149

申请日：2019-05-21

Applicant: Chengdu,Tianma Micro-Electronics Co,. Ltd.

Inventor： Donghua Wang ,  Bo WU ,  Yingru HU

IPC: H01Q3/36 ,  H01P1/18 ,  H01P3/08

Abstract: Embodiments of the present disclosure provide a liquid crystal phase shifter and an antenna, which relate to the field of electromagnetic waves and can adjust carrier frequencies applicable to the liquid crystal phase shifter, improving compatibility of the liquid crystal phase shifter. The liquid crystal phase shifter includes at least one phase-shifting unit. The phase-shifting unit includes a microstrip line and a phase-controlled electrode, the microstrip line includes a plurality of sub-microstrip lines, each sub-microstrip line includes two ends and a transmission portion connected between the two ends, and any two adjacent sub-microstrip lines share one end. The phase-shifting unit further includes feed terminals located on a side of the first substrate facing away from the second substrate or on a side of the second substrate facing away from the first substrate, and each of the feed terminals overlaps the corresponding end respectively.

公开(公告)号：US20210367314A1

公开(公告)日：2021-11-25

申请号：US16958745

申请日：2019-05-22

Applicant: Chengdu Tianma Micro-Electronics Co., Ltd.

Inventor： Yingru HU ,  Bo WU ,  Xuhui PENG

IPC: H01P1/18 ,  H01Q3/36

Abstract: Provided is a liquid crystal phase shifting device including: a first substrate and a second substrate that are opposite to each other, wherein first protrusions is provided on a surface of the first substrate facing towards the second substrate, second protrusions is provided on a surface of the second substrate facing towards the first substrate, and the first protrusions and the second protrusions are alternately arranged; a microstrip line provided on the surface of the first substrate facing towards the second substrate, the microstrip line covering at least part of the first protrusions; first support pads provided between the first substrate and the second substrate; a ground electrode provided on the surface of the second substrate facing towards the first substrate, the ground electrode overlapping at least part of the second protrusions; and liquid crystal molecules provided between the microstrip line and the ground electrode.

公开(公告)号：US20210083350A1

公开(公告)日：2021-03-18

申请号：US16958710

申请日：2019-05-21

Applicant: CHENGDU TIANMA MICRO-ELECTRONICS CO., LTD.

Inventor： Bo WU ,  Yingru HU ,  Dongquan HOU ,  Peng Li

IPC: H01P1/18 ,  G02F1/1333 ,  G02F1/137 ,  G02F1/1343

Abstract: The present disclosure provides a liquid crystal phase shifting device, a manufacturing method for the liquid crystal phase shifting device, a liquid crystal phase shifter, and an antenna, aiming to achieve the better curved surface applications of the liquid crystal phase shifting device and thus increases the applications. The liquid crystal phase shifting device includes: a first flexible substrate and a second flexible substrate that are opposite to each other; a microstrip line arranged on a side of the first flexible substrate facing towards the second flexible substrate; an electrode layer arranged on a side of the second flexible substrate facing towards the first flexible substrate; and solid-state liquid crystal arranged between the microstrip line and the electrode layer. The liquid crystal phase shifting device is used for performing phase shifting on a microwave signal.