A phase-shift unit includes: a first substrate and a second substrate provided opposite to each other; a medium layer provided between the first substrate and the second substrate; a microstrip line disposed at a side of the second substrate facing towards the first substrate; and a grounding layer provided at a side of the first substrate facing towards the second substrate and formed with a via hole; wherein a projection of the via hole onto the second substrate and a projection of the microstrip line onto the second substrate have an overlapped area therebetween; and wherein the via hole is configured to feed a phase-shifted microwave signal out of the phase-shift unit, or feed a microwave signal into the phase-shift unit such that the microwave signal is phase-shifted.

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.

A switchable element, a device and a method for analogue and programmable computing operating on electromagnetic waves having a frequency, wherein the switchable element is configured to configured to, in response to an activation signal, switch from having a first dielectric permittivity for electromagnetic waves having a frequency to having a second dielectric permittivity for electromagnetic waves having the frequency, and the device comprises a plurality of the switchable elements that are adapted to be switched individually in accordance with the computing operation.

A high-frequency device and/or a high-frequency switch including the same may include: a signal electrode; a first ground electrode arranged in parallel with the signal electrode; a first liquid crystal layer disposed between the signal electrode and the first ground electrode; and a first dielectric layer disposed between the first liquid crystal layer and the first ground electrode, and/or between the signal electrode and the first liquid crystal layer. The first dielectric layer may have a dielectric constant that is larger than the dielectric constant of the first liquid crystal layer. The high-frequency device and/or the high-frequency device including the same may be variously implemented.

An electronic device is provided, including: a first substrate, a plurality of phase shifters, a second substrate, a plurality of patches, a common electrode layer, a dielectric layer, and a liquid-crystal layer. The plurality of phase shifters are disposed on the first substrate. The second substrate has an inner side facing the first substrate. The plurality of patches are disposed on the inner side of the second substrate. The dielectric layer is disposed between the common electrode layer and the second substrate and on the plurality of patches. The liquid-crystal layer is disposed between the plurality of phase shifters and the common electrode layer.

A phase shifter, a phase shift degree compensation device, and a phase shift degree compensation method are provided. The phase shifter includes a first substrate and a second substrate that are oppositely arranged, a resonant circuit, a signal line, and a first alignment layer are on a side of the first substrate facing the second substrate, a conductive layer and a second alignment layer are on a side of the second substrate facing the first substrate, a liquid crystal layer is between the first alignment layer and the second alignment layer, and the resonant circuit is configured to detect an actual equivalent dielectric constant of the liquid crystal layer

A non-volatile adjustable phase shifter is coupled to a transceiver in a wireless communication device. The non-volatile adjustable phase shifter includes a non-volatile radio frequency (RF) switch. In one implementation, the non-volatile RF switch is a phase-change material (PCM) RF switch. In one approach, the non-volatile adjustable phase shifter includes a selectable transmission delay arm and a selectable transmission reference arm. A phase shift caused by the non-volatile adjustable phase shifter is adjusted when the non-volatile RF switch engages with or disengages from the selectable transmission delay arm. In another approach, the non-volatile adjustable phase shifter includes a selectable impedance element. A phase shift caused by the non-volatile adjustable phase shifter is adjusted when the non-volatile RF switch engages with or disengages from the selectable impedance element. In either approach, the phase shift changes a phase of RF signals being transmitted from or received by the transceiver.

The present disclosure discloses a phase-shift unit, an antenna array, a display panel and a display device. In one embodiment, the phase-shift unit includes a first substrate and a second substrate assembled to each other; a liquid crystal layer between the first substrate and the second substrate; a microstrip line provided at a side of the second substrate facing towards the liquid crystal layer, and configured for receiving a voltage signal that controls deflection of liquid crystal molecules in the liquid crystal layer and for receiving or transmitting an electromagnetic wave signal; and a grounding layer provided on the first substrate and including a via hole corresponding to the microstrip line.

A phase shifting device with a linear transmission line comprises a first electrode and a second electrode that are spaced at a distance from each other. A tunable dielectric material is arranged between the first electrode and the second electrode. The transmission line comprises several overlapping section. An overlapping area of the first electrode overlaps an overlapping area of the second electrode in order to provide a parallel plate capacitor area that affects the phase of an electromagnetic signal that propagates along the transmission line. The first electrode and the second electrode are electrically connected to a bias voltage source with bias electrodes which consist of a material with a lower electrical conductivity that that of the first and second electrode.

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.