Abstract: The disclosure relates to radio engineering, for example to a termination load embedded in a printed circuit board substrate and an antenna array including the termination load. The disclosure reduces the complexity and size and increases the reliability of the termination load, as well as in increasing the reliability and speed of wireless data transmission in antenna arrays that use the termination loads.

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: 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 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: 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 communication device includes an input port, a first output port, a second output port, a first output arm including one end connected to the first output port and another end connected to a branch point and including a first switching element configured to be shorted in a second mode, a second output arm including one end connected to the second output port and another end connected to the branch point and including a second switching element configured to be shorted in a first mode, and an input arm including one end connected to the input port and another end connected to the branch point and including a third switching element configured to introduce a discontinuity into a transmission line in the form of a matching element configured to change an impedance of the input arm in a divider mode.

Abstract: An object detection method performed by a movable device is provided. The object detection method includes emitting radio frequency signals, receiving radio frequency signals reflected by an object, obtaining N sample sequences by digitizing N radio frequency signals, N being a natural number greater than or equal to 2, from among the received radio frequency signals, obtaining a matrix including each of the N sample sequences as a column, in an order in which the radio frequency signals are received, obtaining a resulting signal by summing samples for each row of the matrix and obtaining an energy value from the resulting signal, and detecting the object based on the obtained energy value being greater than or equal to a certain threshold value.

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: An antenna system includes a first antenna including first radiating components and first planar re-radiating components, a second antenna including second radiating components and second planar re-radiating components, and reflective components positioned between the first planar re-radiating components and the second planar re-radiating components.

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: 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 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 communication device is provided. The wireless communication device includes a millimeter wave antenna comprising a plurality of antenna elements, a radio frequency integrated circuit (RFIC), and a power feeding line, wherein the plurality of antenna elements are dual-type antenna elements configured to excite different polarization modes, and wherein the power feeding line allows a plurality of ports of the RFIC to individually connect to the plurality of dual-type antenna elements to excite the different polarization modes to perform beamforming. The wireless communication device and/or electronic device may be diversified according to various embodiments.

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: The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transmission rate than a 4G system, such as LTE. Various embodiments of the present disclosure provide a device and a method. To this end, an antenna unit may comprise a dielectric substrate, a dielectric cover on the dielectric substrate, and a slot antenna array formed in a metal layer arranged on or in the dielectric substrate. The slot antenna array may be configured to generate a traveling wave which propagates in the dielectric substrate and the dielectric cover, and may have at least two groups (first and second groups) of slot elements. Each slot element of the second group may be shorter than any slot element of the first group, and slots of the first and second groups may be arranged to be opposite to each other so as to make pairs of slot elements.

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 communication device includes an input port, a first output port, a second output port, a first output arm including one end connected to the first output port and another end connected to a branch point and including a first switching element configured to be shorted in a second mode, a second output arm including one end connected to the second output port and another end connected to the branch point and including a second switching element configured to be shorted in a first mode, and an input arm including one end connected to the input port and another end connected to the branch point and including a third switching element configured to introduce a discontinuity into a transmission line in the form of a matching element configured to change an impedance of the input arm in a divider mode.

Abstract: An optically-controlled switch and a method therefor are provided. The optically-controlled switch includes a printed circuit board (PCB) including upper and lower layers and a dielectric layer between the upper and lower layers, a plurality of vias electrically connected to the upper and lower layers and located in at least two rows, a shunt via electrically connected to the lower layer and separated from the upper layer by a dielectric gap, and a photoconductive semiconductor element (PSE) electrically connected to the upper layer and the shunt via, wherein the PSE includes a dielectric state and a conductor state, and wherein an electromagnetic wave provided to the optically-controlled switch propagates or is blocked through a waveguide formed between the at least two rows.