Abstract: A radar apparatus includes a printed circuit board having a top side, on which a radar antenna unit and an RF circuit unit are mounted, and a bottom side, on which a base band circuit unit and a signal processing circuit unit are mounted. A base plate is coupled to the printed circuit board. A protective member is coupled to the top side of the printed circuit board to cover the RF circuit unit in order to protect the RF circuit unit. The protective member has a groove formed on one side thereof, which serves as a passage of a wire for connecting the radar antenna unit and the RF circuit unit mounted on the top side of the printed circuit board.

Abstract: The present invention relates to a radar apparatus. More particularly, the present invention is a radar apparatus having a front end structure that is reduced in size and the number of parts.

Abstract: Disclosed herein is a frequency modulated continuous wave (FMCW) radar device, including: a continuous wave (CW) signal generator configured to generate a transmit (Tx) CW signal; a radio frequency (RF) transmitter configured to transmit the generated Tx CW signal as an RF signal through a Tx antenna; an RF receiver configured to receive a CW signal which is reflected and returned from a forward object after the Tx CW signal is transmitted; a target detector configured to extract speed and angle using a frequency difference between the Tx CW signal and the reflected CW signal, and detect an approaching target; and a detection controller configured to control the RF transmitter to transmit the Tx CW signal as a signal having a triangular waveform in a time-frequency graph and to additionally transmit the Tx CW signal as a signal having a crossbar waveform at a predetermined frequency for a predetermined time, and extract speed and angle from the reflected CW signal having a crossbar waveform so as to detect th

Abstract: Disclosed herein are a method and device for sensing a surrounding environment based on a frequency modulated continuous wave (FMCW) radar. The method for detecting a target based on an FMCW radar includes the steps of: the FMCW radar transmitting a sensing signal for detection of the target, and receiving a response signal in response to the sensing signal; the FMCW radar performing a signal processing on the response signal, and generating a frequency spectrum of a beat signal; the FMCW radar determining a detection frequency band for detection of the target within a valid frequency band of the frequency spectrum; the FMCW radar determining a threshold value to determine a target detection peak value for detection of the target among peak values of the frequency spectrum; and the FMCW radar detecting the target based on the detection frequency band and the threshold value.

Abstract: Disclosed are a radar apparatus having a reduced size and a reduced number of components, and a method of assembling the radar apparatus.

Abstract: Disclosed herein are a method and device for sensing a road environment based on a frequency modulated continuous wave (FMCW) radar. A method for detecting a road environment based on the FMCW radar includes the steps of: the FMCW radar performing a first scan to acquire a first frequency spectrum of beat signals, and shifting the first frequency spectrum based on first velocity information of a vehicle on performing the first scan; the FMCW radar performing a second scan to acquire a second frequency spectrum of beat signals, and shifting the second frequency spectrum based on second velocity information of the vehicle on performing the second scan; acquiring correlation information between the shifted first frequency spectrum and the shifted second frequency spectrum; and comparing the correlation information with a set threshold value and detecting the road environment.

Abstract: Disclosed herein are a method and apparatus for detecting a surrounding environment based on a Continuous Wave (CW) radar sensing signal and a Frequency-Modulated Continuous Wave (FMCW) radar sensing signal. A method of detecting a target based on a Frequency-Modulated Continuous Wave (FMCW) radar sensing signal and a Continuous Wave (CW) radar sensing signal may include sending, by a radar, the CW radar sensing signal for detecting the target and receiving a first response signal that is a response to the CW radar sensing signal; sending, by the radar, the FMCW radar sensing signal for detecting the target and receiving a second response signal that is a response to the FMCW radar sensing signal; generating, by the radar, the frequency spectrum of a beat signal by performing signal processing on the first response signal and the second response signal.

Abstract: Disclosed herein is a vehicle radar. The radar may include Tx antennas for a middle range, Tx antennas for a short range, Rx antenna columns for a middle range each configured to have a long shape vertically and be horizontally disposed, Rx antenna columns for a short range each configured to have a long shape vertically and be disposed between some of the Rx antenna columns for a middle range, and a control unit configured to process signals of radio waves that are reflected from a specific object after the radio waves are radiated by the Tx antennas for the middle range and that are received by the Rx antenna columns for the middle range or signals of radio waves that are reflected from a specific object after the radio waves are radiated by the Tx antennas for the short range and that are received by the Rx antenna columns for the short range.

Abstract: Disclosed is a method and a radar apparatus for transmitting a transmission signal at a controlled timing in order to avoid signal interference, thereby exactly detecting a target object without misrecognition.

Abstract: Disclosed herein are a polyimide-polybenzoxazole copolymer, a method for preparing thereof and a gas separation membrane comprising the same. More specifically, provided are a polyimide-polybenzoxazole copolymer simply prepared through thermal-rearrangement performed by thermally treating a polyimide-poly (hydroxyimide) copolymer as a precursor, a method for preparing the same, and a gas separation membrane comprising the same. The copolymer shows superior gas permeability and gas selectivity, thus being suitable for use in gas separation membranes in various forms such as films, fibers or hollow fibers. The gas separation membrane thus prepared can advantageously endure even harsh conditions such as long operation time acidic conditions and high humidity due to the rigid polymer backbone present in the copolymer.

Abstract: Disclosed is an antenna apparatus for improving radiation efficiency, which can radiate signals not having a radiation pattern where maximum radiation energy is emitted from the front side, but having a radiation pattern where maximum radiation energy is emitted from opposite lateral sides of the front side.

Abstract: Disclosed is a method of preparing porous polybenzimidazole. The method includes providing polyaminoimide by reacting aromatic amine including at least two ortho-positioned amino groups and acid dianhydride, obtaining polypyrrolone from the polyaminoimide, subjecting the polypyrrolone to alkaline treatment, and subjecting the alkaline-treated polypyrrolone to heat treatment. The polybenzimidazole shows permeability and selectivity for various gases due to a fractional free volume and well-connected picopores.

Abstract: Disclosed is a production method for a bezel for display panels, whereby unnecessary material costs are reduced, a three dimensional surface shape can easily be imparted and deformation can be minimized The production method for a bezel for display panels according to the present invention comprises the steps of: (a) providing a lower mould formed so as to have a three-dimensional pattern for imparting the surface shape of the bezel at the molding surface; (b) fastening a gasket to the molding-surface edge of the lower mould; (c) fasten an upper mould, which is provided with a raw-material injection part, on the gasket on the lower mould; (d) injecting a polymeric raw material for the bezel via the raw-material injection part of the upper mould; and (e) transferring the three-dimensional pattern formed in the molding surface of the lower mould, while curing the polymeric raw material.

Abstract: A method for manufacturing a polymer-molded material which can easily form a three-dimensional surface shape and minimize deformation includes: (a) preparing a lower mold on which a three-dimensional pattern, for imparting a surface shape of the molded material to a surface to be formed, is formed; (b) coupling a gasket on an edge of the formed surface of the lower mold; (c) coupling an upper mold including a raw material injection part to the gasket of the lower mold; (d) injecting a raw material of the polymer-molded material onto the formed surface of the lower mold through the raw material injection part of the upper mold; (e) heat-curing the raw material and transferring the three-dimensional pattern onto the formed surface of the lower mold; and (f) additionally heat-curing the raw material, which does not react in the step (e), through heat treatment.

Abstract: The present invention relates to a radar apparatus. More particularly, the present invention is a radar apparatus having a front end structure that is reduced in size and the number of parts.

Abstract: A mold for forming a three-dimensional pattern, which can easily provide a three-dimensional surface shape to a molded article and minimize deformation, and a method for manufacturing an exterior material for a home appliance using the same are disclosed. The mold includes a mold section formed of a material, such as metal, Teflon, and rubber, and having a three-dimensional pattern on a molding surface thereof to provide a surface shape of a molded article; and a frame section formed of a material, such as glass or a metal honeycomb panel, and attached to an outer surface of the mold section to reinforce the mold section.

Abstract: In the present invention, a GPS reference station generates and transmits GPS error correction information for each wireless AP and a user terminal recognizes the GPS error correction information to be used for correcting reception information of a user terminal GPS receiver, thereby acquiring precision positioning performance.

Abstract: Disclosed is a method and a radar apparatus for transmitting a transmission signal at a controlled timing in order to avoid signal interference, thereby exactly detecting a target object without misrecognition.

Abstract: Disclosed is a method and a radar apparatus for transmitting a transmission signal through a changing transmission frequency band in order to avoid signal interference, thereby exactly detecting a target object without misrecognition.

Abstract: Disclosed is alignment adjustment technology for a sensor, and more particularly a sensor having an antenna structure of a specific form, which enables the alignment of the sensor to be simply and accurately adjusted even without a separate mechanical adjustment device or a change in the structure of a vehicle, and an alignment adjusting method provided by the sensor.