The present disclosure provides a phase shifter and an antenna, and relates to the field of communication technology. The phase shifter provided by the embodiment of the present disclosure is divided into a first feeding region, a second feeding region and a phase-shift region. The phase shifter includes: a first substrate and a second substrate provided opposite to each other, a dielectric layer provided between the first substrate and the second substrate, and a first feeding structure and a second feeding structure. The first feeding structure is electrically coupled to one end of the signal line, and the second feeding structure is electrically coupled to the other end of the signal line. The first feeding structure is located in the first feeding region; and the second feeding structure is located in the second feeding region. Recesses are formed in the first base substrate and/or in the second base substrate.

The present disclosure provides a phase shifter and a manufacturing method thereof, and an antenna. The phase shifter includes a first substrate including a reference electrode, and a second substrate including a delay line and a bias line. An orthographic projection of the bias line on the first substrate and that of the delay line, at least partially overlap with that of the reference electrode respectively. The orthographic projection of the bias line on the first substrate does not overlap with that of the delay line. The delay line is used for transmitting a microwave signal and defining a microwave transmission region. When electrical signals are applied to the reference electrode, the delay line and the bias line, electric field areas formed respectively between the reference electrode and the delay line, and between the reference electrode and the bias line, cover the microwave transmission region.

The present disclosure provides a phase shifter and a manufacturing method thereof, and an antenna. The phase shifter includes a first substrate and a second substrate, and a medium layer arranged between them. The first substrate includes a reference electrode arranged on a side of a first base substrate close to the medium layer, and the second substrate includes a delay line arranged on a side of a second base substrate close to the medium layer. An orthographic projection on the first substrate of the delay line at least partially overlaps with that of the reference electrode. A line spacing and/or a line width of the delay line is enable to make a cell thickness between the first substrate and the second substrate be 20 μm-75 μm.

An electrically tunable radio frequency phase shifter with compact 3-D structure that integrates both ferromagnetic and ferroelectric materials, and utilizes 3-D structure to increase the tuning efficiency and achieve miniaturization.

Natural response time for domains to assume their natural relaxed state is accelerated by forcing the domains to assume the natural state. The forcing may be done by application of electric field, magnetic field, or application of mechanical, hydraulic or sonic pressure. Additionally, an RF choke and/or one or more RF traps, are incorporated in the structure. When the forcing is implemented via electric field, the control signals may be applied onto the transmission lines and to at least one control line flanking each of the signal lines.

A liquid crystal phase shifter is disclosed. The liquid crystal phase shifter includes a liquid crystal cell, a partition plate, a first microstrip line, a second microstrip line and liquid crystal molecules. The liquid crystal cell includes a first substrate and a second substrate disposed opposite to each other; the partition plate is disposed between the first substrate and the second substrate; the first microstrip line is disposed on a surface of the partition plate away from the second substrate; the second microstrip line is disposed on a surface of the partition plate away from the first substrate; and the liquid crystal molecules are provided between the first substrate and the partition plate, and between the second substrate and the partition plate.

A liquid crystal phase shifter and an antenna are provided. The liquid crystal phase shifter includes: first and second substrates opposite to each other, a liquid crystal layer, a first electrode, and a second electrode that are between the first and second substrates, a first shielding electrode on a side of the first substrate distal to the liquid crystal layer, and a second shielding electrode on a side of the second substrate distal to the liquid crystal layer. The first and second electrodes generate an electric field when being provided with different voltages, respectively, to change a dielectric constant of the liquid crystal layer so as to adjust a phase shifting degree of a microwave signal. The first and second shielding electrodes shield radiation generated by the first and second electrodes when the different voltages are applied to the first and second electrodes, respectively.

A phase shifter and a method for operating the same, an antenna and a communication device are provided. The phase shifter includes: a first substrate and a second substrate opposite to each other; a dielectric layer between the first substrate and the second substrate; a first electrode on a side of the first substrate proximal to the second substrate; a second electrode on a side of the second substrate proximal to the first substrate; and a ground electrode on a side of the second substrate distal to the first substrate. The dielectric layer includes liquid crystal molecules, and the first electrode and the second electrode are configured to control rotation of the liquid crystal molecules according to different voltages respectively received by the first electrode and the second electrode. The second electrode has a one-piece structure.

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.

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.