Abstract: Provided is a device for transmitting signals, the device including: a first conductive base and a second conductive base parallel to each other, a waveguide at least partially surrounded by side walls located between the first conductive base and the second conductive base and including at least one electromagnetic band gap (EBG) structure, and at least two directional antennas opposite to or facing each other in a direction in which signals are transmitted, wherein each antenna is on a printed circuit board and includes another EBG structure located on an upper layer and a lower layer of the printed circuit board and at least one matching element, at least a part of each of the antennas is located inside the waveguide to form a wireless channel configured to transmit electromagnetic signals in an area between the antennas, and the at least one matching element is located within a specified distance of the wireless channel and is configured to match the antenna with the wireless channel.

Abstract: A radio frequency (RF) system including first and second planar RF devices coupled by non-galvanic interconnect. According to various embodiments, a first RF device and a second RF device are separated by a dielectric layer, each of the first and second RF devices including a plurality of pads disposed on surface and surrounded by a common electrode, the common electrode configured as a grounded metal shield, wherein pads of the first RF device and pads of the second RF device face each other to provide capacitive coupling between the pads. The disclosure may reduce complexity and size of the system, and offer more reliable and easily producible interconnection between elements of the RF system.

Abstract: Provided is an antenna apparatus including: a signal splitter configured to generate a second signal including N equal-phase signals by splitting a first signal received from a signal source; a signal source virtual beam adjustor configured to generate a third signal including N signals by shifting a phase of each signal included in the second signal; a transmission beam adjustor configured to generate a fourth signal including N signals by shifting a phase of each signal included in the third signal by 0 degree or 180 degrees; and a transmitter including N transmission antennas transmitting respectively transmitting the N signals included in the fourth signal.

Abstract: The disclosure relates to radio engineering and, for example, to the printed circuit board-integrated antenna of transmitting/receiving data. A printed circuit board-integrated antenna for transmitting/receiving data, the antenna comprises an intermediate section comprising patch elements interconnected by at least one via, wherein a first patch element is disposed in a lower middle layer and is separated by a gap from a conductive solid area, a second patch element is disposed in an upper middle layer and is separated by a gap from the conductive solid area; a parasitic patch element disposed in an upper layer and separated by a gap from the conductive solid area; and a strip line connected directly to an edge of the first patch element, the strip line being disposed in the lower middle layer and configured for communicating a data signal to or from the intermediate section when transmitting/receiving data.

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.

Abstract: The disclosure relates to a wide scanning antenna array. The technical result consists in increasing the beam scanning range of the antenna array and the operating frequency range, simplifying the design of the antenna array and reducing losses. An antenna array is provided. The antenna array includes a plurality of antenna array elements. Each antenna array element of the plurality of antenna array elements includes a main printed circuit board (PCB) over which a middle layer and an additional PCB are arranged. A first patch element is disposed at the main PCB, and a second patch element is disposed at the additional PCB. The antenna array element further includes a cavity in the middle layer to reduce coupling between the antenna array element and at least another antenna array element of the plurality of antenna array elements. The cavity in the middle layer includes a hole that supports coupling between the first patch element and the second patch element.

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: Disclosed is a ridge guide waveguide including a conductive base, a conductive ridge protruding upward from the conductive base and extending along a predetermined wave transmission direction, an upper conductive wall located over the conductive base and the conductive ridge and spaced apart from the conductive ridge by a gap, and an electromagnetic bandgap structure arranged adjacent to the conductive ridge between the conductive base and the upper conductive wall.

Abstract: A rotary-type data transmission device is provided. The rotary-type data transmission includes a first structure having a first surface and a second surface facing each other and including a first metal hollow waveguide including a first through hole passing through the second surface from the first surface in a center portion thereof, a second structure coupled to the first structure to support rotation of the first structure or to support rotation by the first structure, a first transceiver facing the first surface at a certain distance therebetween, coupled to the first structure, and including a first printed circuit board, a first meta waveguide, and a first transceiver, and a second transceiver facing the second surface at a certain distance therebetween, coupled to the second structure, and including a second printed circuit board, a second meta waveguide, and a second transceiver.

Abstract: An optically controlled switch includes a substrate integrated waveguide (SIW) including: a first port and a second port, the first port and the second port being located at ends of the SIW to input and output an electromagnetic wave; and a shorting via electrically connected to a bottom layer of the SIW and separated from a top layer of the SIW by a dielectric gap. The optically controlled switch includes: a photoconductive element located on the top layer of the SIW and electrically connected to the shorting via and the top layer of the SIW, the photoconductive element being configured to have a dielectric state and a conductor state depending on a state of a controlling light flux; and a cutoff waveguide formed around the dielectric gap and the photoconductive element, and configured to provide control of the photoconductive element from a light source and block parasitic radiation.

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: An optically-controlled switch is provided. The optically-controlled switch includes a circuit board including a transmission line and a photoconductive switching region that is adjacent to the transmission line and has electrical properties controllable by light and a laser located on the circuit board and configured to emit light toward the photoconductive switching region.

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: Provided is a device for transmitting signals, the device including: a first conductive base and a second conductive base parallel to each other, a waveguide at least partially surrounded by side walls located between the first conductive base and the second conductive base and including at least one electromagnetic band gap (EBG) structure, and at least two directional antennas opposite to or facing each other in a direction in which signals are transmitted, wherein each antenna is on a printed circuit board and includes another EBG structure located on an upper layer and a lower layer of the printed circuit board and at least one matching element, at least a part of each of the antennas is located inside the waveguide to form a wireless channel configured to transmit electromagnetic signals in an area between the antennas, and the at least one matching element is located within a specified distance of the wireless channel and is configured to match the antenna with the wireless channel.

Abstract: A radio frequency (RF) system including first and second planar RF devices coupled by non-galvanic interconnect. According to various embodiments, a first RF device and a second RF device are separated by a dielectric layer, each of the first and second RF devices including a plurality of pads disposed on surface and surrounded by a common electrode, the common electrode configured as a grounded metal shield, wherein pads of the first RF device and pads of the second RF device face each other to provide capacitive coupling between the pads. The disclosure may reduce complexity and size of the system, and offer more reliable and easily producible interconnection between elements of the RF system.

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 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: Disclosed is a high frequency switch including a substrate, a pair of ground sections provided on the substrate, a center conductor provided between the pair of ground sections, and a photoconductive semiconductor element provided on the center conductor and extending between the center conductor and the pair of ground sections.

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: 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.