An electronic device includes a die, a packages structure, and a multilevel redistribution structure having a first via, a first level, a second via, a second level, and passivation material. The first level has a conductive antenna, the first via extends between the conductive antenna and a conductive terminal of the die, and the passivation material extends between the first and second levels. The second via extends through the passivation material between the first and second levels. The second level has a conductive reflector.

An electronic device includes a die, a packages structure, and a multilevel redistribution structure having a first via, a first level, a second via, a second level, and passivation material. The first level has a conductive antenna, the first via extends between the conductive antenna and a conductive terminal of the die, and the passivation material extends between the first and second levels. The second via extends through the passivation material between the first and second levels. The second level has a conductive reflector.

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 at least two of the plurality of phase adjustment units are different from each other.

The disclosure provides an electromagnetic wave adjusting device, including a first substrate, a first conductive element, a second substrate, a second conductive element, and a dielectric layer. The first conductive element is disposed on the first substrate. The second substrate is opposite to the first substrate. The second conductive element is disposed on the second substrate and faces the first substrate, in which the first conductive element has an overlapping region which overlaps the second conductive element. The dielectric layer is disposed between the first substrate and the second substrate. The electromagnetic wave adjusting device includes a working region and a non-working region. The working region includes the overlapping region. The non-working region is disposed outside the working region. A first region in the non-working region and a second region in the working region have the same film-layer stack structure.

The disclosure provides an electromagnetic wave adjusting device, including a first substrate, a first conductive element, a second substrate, a second conductive element, and a dielectric layer. The first conductive element is disposed on the first substrate. The second substrate is opposite to the first substrate. The second conductive element is disposed on the second substrate and faces the first substrate, in which the first conductive element has an overlapping region which overlaps the second conductive element. The dielectric layer is disposed between the first substrate and the second substrate. The electromagnetic wave adjusting device includes a working region and a non-working region. The working region includes the overlapping region. The non-working region is disposed outside the working region. A first region in the non-working region and a second region in the working region have the same film-layer stack structure.

Disclosed is a display device including, from a front face towards a rear face, a panel, a ground plane, and a processing unit connected to the panel and including an antenna for receiving and/or emitting a wave for connection to a wireless network. The display device further includes a plurality of adjustable elements connected to the processing unit, each adjustable element having an impedance which can be modified by the processing unit in order to change the manner in which the wave is reflected and/or transmitted by the adjustable elements, these adjustable elements being located on the rear side of the ground plane.

Disclosed is a display device including, from a front face towards a rear face, a panel, a ground plane, and a processing unit connected to the panel and including an antenna for receiving and/or emitting a wave for connection to a wireless network. The display device further includes a plurality of adjustable elements connected to the processing unit, each adjustable element having an impedance which can be modified by the processing unit in order to change the manner in which the wave is reflected and/or transmitted by the adjustable elements, these adjustable elements being located on the rear side of the ground plane.

A beam reconstruction method includes: generating or receiving a radio frequency signal, determining a to-be-adjusted beam angle, loading a voltage bias value on each liquid crystal metasurface array unit among a plurality of liquid crystal metasurface array units in a liquid crystal metasurface array based on the beam angle, and either emitting the generated radio frequency signal transmitted through the liquid crystal metasurface array or directing the received radio frequency signal through the liquid crystal metasurface array to a feed of an antenna. A lateral offset of a feed phase center is generated based on the voltage bias value after the radio frequency signal is transmitted through the liquid crystal metasurface array.

The present description concerns a transmitarray or reflectarray cell (105), comprising at least two switches made of a phase-change material.

Systems and methods are described herein for providing wireless power to a mobile device, such as an aerial mobile device like an unmanned aerial vehicle (UAV). A navigational constraint model may prescribe a navigation path along which a wireless power transmission system can provide wireless power to the mobile device. Deviations from the prescribed path may require the mobile device to self-power. The prescription of a navigation path allows for the use of reduced-complexity wireless power transmitters that are fully capable of servicing the prescribed path. Multiple embodiments of prescribed paths with various limitations and features are set forth herein, along with multiple embodiments of wireless power transmission systems of reduced complexity and functionality to fully service the various embodiments of prescribed paths.