Abstract:
A flat inductor, a method of manufacturing a flat inductor, and a circuit including a flat inductor are provided. A flat inductor includes a coil having a predetermined thickness, and a first magnetic medium layer disposed along a side surface of the coil, the first magnetic medium layer having a first width and a first height.
Abstract:
The disclosure refers to a wireless system for high rate data transfer. The technical result consists in high rate data transfer, improved reliability of the wireless data transfer system, as well as reducing its complexity and size. A wireless data transfer system is provided. The wireless data transfer system includes two antenna structures separated from each other by a gap, each antenna structure including a printed circuit board on which at least one antenna is located, wherein dummy elements are located around each of the at least one antenna, each dummy element being connected to a load.
Abstract:
A first terminal according to an embodiment of the disclosure may obtain information regarding reception power of a reference signal transmitted to a second terminal, obtain information regarding reception power of a source signal transmitted to the second terminal, obtain information regarding reception power of a first combined signal that is transmitted to the second terminal and is a combination of the reference signal and the source signal, obtain information regarding reception power of a second combined signal that is transmitted to the second terminal and is a combination of a modified source signal obtained by shifting a phase of the source signal and the reference signal, and determine a transmission beam of the first terminal, based on the information regarding the reception power of each of the reference signal, the source signal, the first combined signal and the second combined signal.
Abstract:
A switch device is disclosed. The switch device includes: an input point; a first output point; a second output point; a first transmission line connecting the input point to the first output point; a second transmission line connecting the input point to the second output point; a switch unit connected to the first output point; and a third transmission line of which one end is connected to the switch unit and the other end is connected to the second output point, wherein the third transmission line causes a 90-degree phase shift when a signal at an operating frequency is delivered therethrough, the switch unit is controlled to be in an ON or OFF state according to one control signal, opens or grounds each of the first output point and the one end of the third transmission line.
Abstract:
The present disclosure relates to an analog phase shifter for mitigating transmission losses. The analog phase shifter includes a multi-port network including an input port for inputting an RF signal and an output port for outputting a phase-changed RF signal. The analog phase shifter further includes a hybrid coupler configured to operably couple the input port and the output port to a plurality of load ports. The analog phase shifter additionally includes tunable reflective loads coupled to the hybrid coupler through the plurality of load ports. Load values of the tunable reflective loads are tuned by applying a plurality of independent voltages.
Abstract:
A mobile communication device having a wireless power receiver and wireless communications unit, in which inductors of the communications unit and the power receiver are in close proximity to each other, is provided. The mobile communication device includes a wireless communications unit including a first inductor configured to transmit and receive data via inductive coupling, and a wireless power receiver. The wireless power receiver includes a second inductor which is disposed above the first inductor and receives power via inductive coupling, a ferrite shield disposed between the first inductor and the second inductor, and a compensator disposed between the first inductor and the ferrite shield. Compensator is adapted to compensate for variations in the inductance of the first inductor caused by the ferrite shield.
Abstract:
The present disclosure relates generally to radio engineering, and for example, to high-rate wireless data transfer between different printed circuit boards or between parts of the same printed circuit board. The technical result is easier fabrication, smaller dimensions, lower losses at high frequencies and improved performance. According to the disclosure, a wireless data transfer system comprises: two printed circuit boards separated by an air gap, between which a transverse electromagnetic (TEM) mode waveguide is formed, wherein each printed circuit board includes a converter structure configured to: perform conversion between the signal transmission line mode and TEM mode in the waveguide, connected to an RF component; wherein the converter structure includes: an antenna, a signal transmission line between the antenna and the RF component, and at least one reflector configured to provide directive propagation of the TEM mode in the waveguide; wherein the width of the air gap between the printed circuit boards does not exceed λ/4, where λ is the wavelength of the transmitted signal.
Abstract:
A multilayer inductor is provided. The multilayer inductor includes a multilayer winding portion comprising a plurality of coil layers that are vertically stacked, and having an inner surface that defines a hollow of the plurality of coil layers and having an outer surface that defines an outer side and a magnetic compensator made of a soft magnetic material and comprising a magnetic wall located at at least one of the inner surface or the outer surface of the multilayer winding portion.
Abstract:
A device for controlling transmission of electromagnetic waves according to the present disclosure includes: a conductor line which is positioned on a signal layer and through which electromagnetic waves received via an input terminal travel; a ground layer electrically separated from the signal layer through a dielectric layer and electrically grounded; a shunt via including a first end and a second end and connected to the conductor line through the first end; and a photoconductive semiconductor connected between the second end of the shunt via and the ground layer and having a dielectric state or a conducting state, based on an input of an optical signal, wherein the conductor line is electrically connected to the ground layer via the shunt via and the photoconductive semiconductor in the conducting state, thereby causing reflection of electromagnetic waves from the shunt via.
Abstract:
A wireless power receiving device includes: a body; rectifiers arranged adjacent to the body; ports, each being located between the body and a corresponding one of the rectifiers; and slots penetrating the body, wherein each of the ports electrically connects the body to a corresponding one of the rectifiers, the body and the ports receive a horizontal polarization component of electromagnetic radiation incident on the body, and the slots receive a vertical polarization component of the electromagnetic radiation.