Abstract: A method for detecting a moving target through a vehicle radar system includes acquiring radar data from a radar sensor disposed with respect to a vehicle, and using the radar data to detect a plane of a structure. The method also includes setting a reference classification line based on the detected plane, and determining whether the moving target is in a line of sight (LOS) area or a non-line of sight (NLOS) area based on the reference classification line.

Abstract: An aspect of the present invention is to provide a fluorine-based polymer showing a significantly low dielectric constant of less than 1.8 and a fluorine-based polymer composition including the same. The fluorine-based polymer provided in an aspect of the present invention shows a very low dielectric constant, wherein the polymer is not only a pollution-reducing material generating no harmful substance, but may also be utilized as a coating material in various fields due to high adhesiveness. Furthermore, a polymer film employing the polymer as a material has a volume resistance of about 5.8×1015 Ohmcm, showing an excellent resistance value as an insulating material.

Abstract: The present invention relates to a fluorine-based polymer coating film, an optical substrate comprising same, and a method for manufacturing the optical substrate, and provides a fluorine-based polymer coating film which is formed from fluorine-based polymer nanoparticles coming in contact and being bound to each other, and which is coated on a substrate to improve infrared transmittance. The fluorine-based polymer coating film according to the present invention has improved infrared transmittance, and since the size of the fluorine-based polymer nanoparticles is controlled to control the ultraviolet-infrared transmittance, transmission wavelength selectivity can be improved.

Abstract: The objective of the present invention is to provide a fluorine-based polymer having a low surface energy, a fluorine-based polymer composition comprising same, a fluorine-based polymer membrane comprising same, and a method for manufacturing same. The present invention provides an acrylate-based copolymer, and in particular, the present invention is characterized in that the number of fluorocarbons in the repeating unit is limited to 3 to 5, such that the surface energy of the polymer and the polymer membrane produced therefrom is significantly lowered. In addition, when the polymer of the present invention is coated on glass, etc., the polymer has the effect of remarkably improving light transmittance, and has excellent mechanical strength.

Abstract: The present invention relates to an insulating gas used for electrical insulation or arc extinguishing of an electrical device, and an electrical device for insulating electricity using the same. The insulating gas of the present invention, which may replace SF6 gas, consists of a mixed gas of trifluoromethyl trifluorovinyl ether (CF3OCFCF2) and a carrier gas. The insulating gas of the present invention has the characteristics of a low boiling point, high dielectric strength, low toxicity, and a low global warming potential (GWP=1 or less), and thus may replace SF6, and the low global warming potential with no loss of high insulating capacity and arc extinguishing capability may reduce greenhouse gases.

Abstract: A printed circuit board assembly includes a first printed circuit board, a second printed circuit board disposed on the first printed circuit board and including an antenna pattern, a third printed circuit board disposed on the first printed circuit board, one or more first electronic components disposed between the first and the second printed circuit board and electrically connected to at least one of the first and the second printed circuit board, one or more second electronic components disposed between the first and the third printed circuit board, and electrically connected to at least one of the first and the third printed circuit board, a first interposer substrate electrically connecting the first printed circuit board and the second printed circuit board to each other, and a second interposer substrate electrically connecting the first printed circuit board and the third printed circuit board to each other.

Abstract: Disclosed is a method of detecting a moving target by a target detecting apparatus. The method includes: acquiring radar data from a radar installed in a vehicle, extracting location coordinates of a moving target from the radar data, obtaining a line of a reflective surface on which a signal of the radar is reflected using location coordinates of a fixed object, determining whether the moving target is in a Line of Sight (LOS) area of the radar or in a Non Line of Sight (NLOS) area of the radar based on the location coordinates of the moving target and the line segment of the reflective surface, and based on determining that the moving target is in an area corresponding to the NLOS area of the radar, converting the location coordinates of the moving target into actual coordinates corresponding to an actual location of the moving target.

Abstract: The present invention relates to a composition for forming a composite polymer film, a method for preparing the composition for forming a composite polymer film, a composite polymer film and a method for preparing the composite polymer film. The composition for forming a composite polymer film comprises: a fluorine-based polymer solution comprising a fluorine-based polymer; and polyvinylidene fluoride nanoparticles dispersed in the fluorine-based polymer solution. The method for preparing the composition for forming a composite polymer film comprises the steps of: preparing a fluorine-based polymer solution comprising a fluorine-based polymer; and dispersing polyvinylidene fluoride nanoparticles in the fluorine-based polymer solution. The composite polymer film comprises: a polymer matrix formed from a fluorine-based polymer; and polyvinylidene fluoride nanoparticles dispersed in the polymer matrix.

Abstract: An antenna module includes an antenna substrate including an antenna pattern; a semiconductor package disposed on a lower surface of the antenna substrate, electrically connected to the antenna substrate, and having a semiconductor chip embedded therein; and an electronic component disposed at a side of the antenna substrate, electrically connected to the antenna substrate, and spaced apart from the semiconductor package by a predetermined distance. The antenna module includes a connection substrate connected to a portion of the antenna substrate, the connection substrate having an extension portion extending outward from the side of the antenna substrate, and the electronic component is disposed on the extension portion of the connection substrate to electrically connect to an inner wiring layer of the antenna substrate.

Abstract: An antenna apparatus includes: a ground plane including first sides parallel to a first direction and second sides parallel to a second direction, on a plane formed in the first and second directions; a dielectric layer disposed on the ground plane in a third direction; an antenna patch overlapping the ground plane in the third direction; and vias connected to the ground plane and passing through at least a portion of the dielectric layer. Edges of the vias at least partially overlap the first sides of the ground plane in the third direction.

Abstract: An antenna module includes a first connection member including at least one first wiring layer and at least one first insulating layer; an antenna package disposed on a first surface of the first connection member, and including a plurality of antenna members and a plurality of feed vias; an integrated circuit (IC) disposed on a second surface of the first connection member and electrically connected to the corresponding wire of at least one first wiring layer; and a second connection member including at least one second wiring layer electrically connected to the IC and at least one second insulating layer, and disposed between the first connection member and the IC, wherein the second connection member has a third surface facing the first connection member and having an area smaller than that of the second surface, and a fourth surface facing the IC.

Abstract: The present invention relates to a method for preparing a perfluorodialkyl ether, comprising the steps of: (A) preparing a perfluorodialkyl ether from a compound represented by Formula 1 in the presence of a metal fluoride; and (B) isolating the perfluorodialkyl ether, and to an apparatus for preparing perfluorodialkyl ether, comprising: a reactor for preparing a perfluorodialkyl ether from a compound represented by Formula 1 in the presence of a metal fluoride; a reactant supplier for introducing the compound represented by Formula 1 into the reactor; and a discharge unit for discharging the perfluorodialkyl ether from the upper portion of the reactor.

Abstract: A method for detecting a moving target through a vehicle radar system includes acquiring radar data from a radar sensor disposed with respect to a vehicle, and using the radar data to detect a plane of a structure. The method also includes setting a reference classification line based on the detected plane, and determining whether the moving target is in a line of sight (LOS) area or a non-line of sight (NLOS) area based on the reference classification line.

Abstract: An antenna device is provided. The antenna device includes a first antenna patch configured to transmit and receive an RF signal in a first frequency bandwidth and disposed a first dielectric layer; a second antenna patch disposed on a second dielectric layer and coupled to the first antenna patch; a third antenna patch disposed on a third dielectric layer and coupled to the second antenna patch; and a fourth antenna patch configured to transmit and receive an RF signal in the second frequency bandwidth, wherein the second antenna patch includes a plurality of first sub-antenna patches that do not overlap the first antenna patch, and the third antenna patch includes a plurality of second sub-antenna patches that overlap the first sub-antenna patches.

Abstract: A dielectric resonator antenna includes a dielectric material block extending in a first direction, a second direction different from the first direction, and a third direction perpendicular to the first direction and the second direction; and a feeding part extending in the third direction from a bottom surface of the dielectric material block to a part of the dielectric material block, wherein the feeding part overlaps a diagonal, or an extension line of the diagonal, of the bottom surface of the dielectric material block intersecting a first position where a first edge of the bottom surface of the dielectric material block parallel to the first direction and a second edge of the bottom surface of the dielectric material block parallel to the second direction meet.

Abstract: According to an embodiment of the present invention, provided is a process for polymerizing molecular weight—adjustable polymer, comprising: a reactant supply step of supplying a gaseous monomer, a surfactant, and an initiator; a polymerization reaction step of performing a polymerization reaction in which the monomer, the surfactant, and the initiator participate; and a product discharging step of discharging the polymer compound produced by the polymerization reaction, wherein the flow rate of the supplied initiator is inversely proportional to the molecular weight of the polymer compound, and the molecular weight of the polymer compound produced by the polymerization reaction is adjusted by controlling the flow rate of the initiator.

Abstract: An antenna module includes an antenna substrate, a first semiconductor package, disposed on the antenna substrate, including a first connection member including one or more first redistribution layers, electrically connected to the antenna substrate, and a first semiconductor chip disposed on the first connection member, and a second semiconductor package, disposed on the antenna substrate to be spaced apart from the first semiconductor package, including a second connection member including one or more second redistribution layers, electrically connected to the antenna substrate, and a second semiconductor chip disposed on the second connection member. The first semiconductor chip and the second semiconductor chip are different types of semiconductor chips.

Abstract: An antenna substrate includes: a first substrate including an antenna pattern disposed on an upper surface of the first substrate; a second substrate having a first planar surface, an area of which is smaller than an area of a planar surface of the first substrate; and a flexible substrate connecting the first and second substrates to each other and bent to allow the first planar surface of the second substrate to face a side surface of the first substrate, which is perpendicular to the upper surface of the first substrate.

Abstract: An antenna apparatus includes a ground layer and an antenna patch overlapping via a dielectric layer therebetween, a first feed via and a second feed via penetrating at least a portion of the dielectric layer, a power supply line connected to the first feed via, and a coupling pattern disposed adjacent to the power supply line and coupled with the power supply line.

Abstract: An antenna device is provided. The antenna device includes a first antenna patch configured to transmit and receive an RF signal in a first frequency bandwidth and disposed a first dielectric layer; a second antenna patch disposed on a second dielectric layer and coupled to the first antenna patch; a third antenna patch disposed on a third dielectric layer and coupled to the second antenna patch; and a fourth antenna patch configured to transmit and receive an RF signal in the second frequency bandwidth, wherein the second antenna patch includes a plurality of first sub-antenna patches that do not overlap the first antenna patch, and the third antenna patch includes a plurality of second sub-antenna patches that overlap the first sub-antenna patches.