Abstract: An antenna is provided in this application. The antenna includes multiple radiating units, at least two adjacent radiating units are correspondingly provided with a respective decoupling structure, the decoupling structure includes two microstrip line units, one microstrip line unit of the two microstrip line units includes at least one microstrip line, and the two microstrip line units are located on two opposite sides of two radiating units in a direction perpendicular to an arrangement direction of two adjacent radiating units. According to the antenna provided in the embodiments of the present disclosure, the decoupling structure composed of the microstrip line are disposed on two sides of the at least two adjacent radiating units, so that an indirect coupling field is formed by the decoupling structure, and the indirect coupling field counteracts a direct coupling field between adjacent radiating units.

Abstract: An antenna and a fabrication method of the antenna are provided. The antenna includes a plurality of sub-antennas arranged in an array. A sub-antenna of the plurality of sub-antennas includes a first substrate and a second substrate that are disposed opposite to each other, a dielectric function layer disposed between the first substrate and the second substrate, a ground metal layer disposed on a side of the first substrate facing towards the dielectric function layer, and a metal connector. The first substrate of each sub-antenna is coplanar with each other, and the second substrate of each sub-antenna is coplanar with each other. A spliced region is formed between adjacent two sub-antennas of the plurality of sub-antennas, and in the spliced region, two first substrates of the adjacent two sub-antennas are connected by the metal connector.

Abstract: Provided are a liquid crystal antenna and a preparation method of the liquid crystal antenna. The liquid crystal antenna includes a liquid crystal cell and the liquid crystal cell includes a first substrate, a second substrate, a microstrip line, a ground metal layer, a liquid crystal layer, and frame glue. The liquid crystal antenna further includes a third substrate, a fourth substrate, and a radiation electrode. The third substrate extends beyond an edge of the first substrate. The fourth substrate extends beyond edges of the second substrate on at least two sides. A connection structure is disposed between the third substrate and the fourth substrate, and the connection structure is disposed on an outer side of the frame glue. The liquid crystal antenna and the preparation method of the liquid crystal antenna are provided to reduce preparation difficulty and improve reliability.

Abstract: A liquid crystal antenna is provided. The liquid crystal antenna includes a first substrate, a second substrate, a liquid crystal layer, a plurality of transmission electrodes including a first transmission electrode and a second transmission electrode, a plurality of signal lines including a first signal line and a second signal line, a plurality of signal terminals including a first signal terminal and a second signal terminal, and a ground electrode. A transmission electrode is electrically connected to a signal terminal through at least one signal line. The first transmission electrode is connected to the first signal terminal through the first signal line, and the second transmission electrode is connected to the second signal terminal through the second signal line. A resistance of the first signal line is A, and a resistance of the second signal line is B, where A/B is less than 10.

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.

Abstract: A liquid crystal antenna is provided. The liquid crystal antenna includes a first substrate, a second substrate, a liquid crystal layer, a plurality of transmission electrodes including a first transmission electrode and a second transmission electrode, a plurality of signal lines including a first signal line and a second signal line, a plurality of signal terminals including a first signal terminal and a second signal terminal, and a ground electrode. A transmission electrode is electrically connected to a signal terminal through at least one signal line. The first transmission electrode is connected to the first signal terminal through the first signal line, and the second transmission electrode is connected to the second signal terminal through the second signal line. A resistance of the first signal line is A, and a resistance of the second signal line is B, where A/B is less than 10.

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.

Abstract: Provided are a liquid crystal antenna and a preparation method of the liquid crystal antenna. The liquid crystal antenna includes a liquid crystal cell and the liquid crystal cell includes a first substrate, a second substrate, a microstrip line, a ground metal layer, a liquid crystal layer, and frame glue. The liquid crystal antenna further includes a third substrate, a fourth substrate, and a radiation electrode. The third substrate extends beyond an edge of the first substrate. The fourth substrate extends beyond edges of the second substrate on at least two sides. A connection structure is disposed between the third substrate and the fourth substrate, and the connection structure is disposed on an outer side of the frame glue. The liquid crystal antenna and the preparation method of the liquid crystal antenna are provided to reduce preparation difficulty and improve reliability.

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.

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.

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).

Abstract: Provided is a liquid crystal phase shifter, including a first substrate and a second substrate opposite to the first substrate; a liquid crystal layer between the first and second substrates; phase-shifting units each including a microstrip line, a phased electrode and two feed terminals, the microstrip line is located between the first substrate and the liquid crystal layer, the phased electrode is located between the second substrate and the liquid crystal layer, the two feed terminals are located at a side of the first or second substrate facing away from the other, and in a direction perpendicular to the first substrate, two ends of the microstrip line respectively overlap the two feed terminals, the phased electrode includes at least two sub-electrodes spaced apart from each other, and the microstrip line includes effective line segments respectively corresponding to each sub-electrode, and the sub-electrodes covers a corresponding effective line segment.

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.

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.

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.

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.

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).

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.

Abstract: A liquid crystal display and a method for testing the liquid crystal display are disclosed. The liquid crystal display includes a TFT substrate including M scan lines and N data lines, a drive power line, and a switch unit adapted to connect the drive power line to the M scan lines under control of a control signal during a detection of a source of Mura of the liquid crystal display. The testing method includes: applying the control signal to the switch unit; applying a data signal to the N data lines; determining the source of the Mura of the liquid crystal display according to a current brightness of the liquid crystal display; and stopping applying the control signal to the switch unit.

Abstract: A liquid crystal display and a method for testing the liquid crystal display are disclosed. The liquid crystal display includes a TFT substrate including M scan lines and N data lines, a drive power line, and a switch unit adapted to connect the drive power line to the M scan lines under control of a control signal during a detection of a source of Mura of the liquid crystal display. The testing method includes: applying the control signal to the switch unit; applying a data signal to the N data lines; determining the source of the Mura of the liquid crystal display according to a current brightness of the liquid crystal display; and stopping applying the control signal to the switch unit.