Abstract: Provided is a laser scanner. The laser scanner includes a laser transmitter configured to output a laser radiated towards an object, a laser receiver configured to receive a laser reflected from the object, and an oscillating mirror of which a mirror surface is coated with a thin metal film to reflect the received laser reflected from the object and be penetrated by an electromagnetic wave incident from an outside the laser scanner. The received laser reflected from the object is reflected by the mirror surface of the oscillating mirror coated with the thin metal film and received by a laser receiver, and the electromagnetic wave incident from the outside the laser scanner penetrates the mirror surface of the oscillating mirror and then dissipates.

Abstract: A light-receiving device having an electromagnetic interference removal function is provided. The light-receiving device includes a waveguide-shaped structure that extends in a traveling direction of photons and high-frequency electromagnetic waves incident on a light-receiving area and that surrounds the light-receiving area, and an insulating layer configured to fix the waveguide-shaped structure.

Abstract: A method and a device for detecting an object using a laser are provided. A laser scanner for detecting an object using a laser includes a transmitter configured to transmit a first laser, a receiver configured to receive a second laser reflected by the target object, and a reflector including a lens configured to reflect the first laser and to irradiate the first laser to the target object and to reflect the second laser to the receiver, and a mirror having a shape of a horn.

Abstract: An apparatus for electromagnetic wave evaluation may include: an electromagnetic wave non-reflecting outer structure in which electromagnetic wave absorbers are installed on interior walls and an evaluation space is formed therein; a building-simulating structure which is installed in the evaluation space inside the electromagnetic wave non-reflecting outer structure and in which electromagnetic wave absorbers capable of adjusting a quality factor are installed; a transmitting end installed inside or outside the building-simulating structure in the evaluation space and transmitting an electromagnetic wave; and a receiving end installed outside or inside the building-simulating structure in the evaluation space.

Abstract: An electromagnetic wave measurement system may include: a reference receiving device; a plurality of auxiliary receiving devices; and a control device connected to the reference receiving device and the plurality of auxiliary receiving devices, wherein the reference receiving device has a wider dynamic range than the plurality of auxiliary receiving devices, the control device collects a frequency-specific measurement value from each of the reference receiving device and the plurality of auxiliary receiving devices, and the frequency-specific measurement value of each of the auxiliary receiving devices is calibrated based on the frequency-specific measurement value of the reference receiving device.

Abstract: An apparatus for electromagnetic wave evaluation may include: an electromagnetic wave non-reflecting outer structure in which electromagnetic wave absorbers are installed on interior walls and an evaluation space is formed therein; a building-simulating structure which is installed in the evaluation space inside the electromagnetic wave non-reflecting outer structure and in which electromagnetic wave absorbers capable of adjusting a quality factor are installed; a transmitting end installed inside or outside the building-simulating structure in the evaluation space and transmitting an electromagnetic wave; and a receiving end installed outside or inside the building-simulating structure in the evaluation space.

Abstract: An electromagnetic wave measurement system may include: a reference receiving device; a plurality of auxiliary receiving devices; and a control device connected to the reference receiving device and the plurality of auxiliary receiving devices, wherein the reference receiving device has a wider dynamic range than the plurality of auxiliary receiving devices, the control device collects a frequency-specific measurement value from each of the reference receiving device and the plurality of auxiliary receiving devices, and the frequency-specific measurement value of each of the auxiliary receiving devices is calibrated based on the frequency-specific measurement value of the reference receiving device.

Abstract: A probe antenna, a probing system, and a power density measuring method to measure a power density of a near-field electromagnetic field are disposed. The probe antenna includes a board, and a conductor transmitting line formed on the board, having a constant line width, and formed in a polygonal shape or in a closed-curve shape. The conductor transmitting line is divided into a first transmitting line and a second transmitting line that are separated from each other, and includes a first receiving port formed with one end of the first transmitting line and one end of the second transmitting line and a second receiving port formed with another end of the first transmitting line and another end of the second transmitting line.

Abstract: A probe antenna, a probing system, and a power density measuring method to measure a power density of a near-field electromagnetic field are disposed. The probe antenna includes a board, and a conductor transmitting line formed on the board, having a constant line width, and formed in a polygonal shape or in a closed-curve shape. The conductor transmitting line is divided into a first transmitting line and a second transmitting line that are separated from each other, and includes a first receiving port formed with one end of the first transmitting line and one end of the second transmitting line and a second receiving port formed with another end of the first transmitting line and another end of the second transmitting line.

Abstract: Provided a reverberation chamber including a pair of a transmitting and receiving antenna and a reflection plate configured to reflect an electromagnetic wave output from the transmitting and receiving antenna to a working volume in a beam direction to improve a field uniformity of the working volume in the reverberation chamber and increase an applicability of the reverberation chamber.

Abstract: Disclosed is an electromagnetic wave reverberation chamber including a column-type mode stirrer including a plurality of plate-shaped electromagnetic wave reflectors connected by a metal column provided on a bottom of the electromagnetic wave reverberation chamber, a ceiling-type mode stirrer including a plurality of plate-shaped electromagnetic wave reflectors connected by a metal column provided on a wall surface of the electromagnetic wave reverberation chamber and disposed around a ceiling of the electromagnetic wave reverberation chamber, and a pyramidal mode stirrer including a plurality of pyramid-shaped electromagnetic wave reflectors and disposed on a wall surface of the electromagnetic wave reverberation chamber.

Abstract: Provided is an apparatus for reducing an electromagnetic wave in a wireless power transmitter using a reducing coil, the apparatus that may cancel external emission of a magnetic field formed at a transmission coil using the reducing coil based on induced electromotive force.

Abstract: An exemplary embodiment of the present invention discloses a microwave signal processing method and apparatus which precisely focus a microwave onto a specific part of a biological tissue and rapidly images a temperature distribution in the biological tissue generated thereby.

Abstract: Provided a reverberation chamber including a pair of a transmitting and receiving antenna and a reflection plate configured to reflect an electromagnetic wave output from the transmitting and receiving antenna to a working volume in a beam direction to improve a field uniformity of the working volume in the reverberation chamber and increase an applicability of the reverberation chamber.

Abstract: Disclosed is an electromagnetic wave reverberation chamber including a column-type mode stirrer including a plurality of plate-shaped electromagnetic wave reflectors connected by a metal column provided on a bottom of the electromagnetic wave reverberation chamber, a ceiling-type mode stirrer including a plurality of plate-shaped electromagnetic wave reflectors connected by a metal column provided on a wall surface of the electromagnetic wave reverberation chamber and disposed around a ceiling of the electromagnetic wave reverberation chamber, and a pyramidal mode stirrer including a plurality of pyramid-shaped electromagnetic wave reflectors and disposed on a wall surface of the electromagnetic wave reverberation chamber.

Abstract: Provided is a gigahertz transverse electromagnetic (GTEM) cell for measuring an insertion loss and an insertion loss measurement method using the GTEM cell. The GTEM cell may include an output port configured to measure an insertion loss of a test object occurring when an electromagnetic field having specific intensity is applied to the test object, and may measure the insertion loss of the test object from the GTEM cell based on a change in the intensity of the electromagnetic field measured using the output port.

Abstract: Provided is an apparatus for reducing an electromagnetic wave in a wireless power transmitter using a reducing coil, the apparatus that may cancel external emission of a magnetic field formed at a transmission coil using the reducing coil based on induced electromotive force.

Abstract: Provided is a cover accessory for a wireless communication device, including an electromagnetic suppressing pattern layer on a surface adjoining at least one surface on which an electromagnetic wave is irradiated from the wireless communication device, wherein the electromagnetic suppressing pattern layer includes a first dielectric layer and a frequency selective surface (FSS) pattern with a unit cell having electromagnetic surface resistance periodically repeated thereon, and the FSS pattern is provided by etching the first dielectric layer to inject an FSS pattern material or by printing the FSS pattern material on the first dielectric layer.

Abstract: A device for controlling exposure of electromagnetic waves from a base station collects a power value received from at least one base station together with position information using a plurality of terminals in a controlled area; maps the received power value collected from the terminals on a plurality of subareas in the controlled area based on position information collected from the terminals; calculates a power density for respective frequency bandwidths in the respective subareas by using the received power value of the terminals provided in the respective subareas; and calculates a specific absorption rate of electromagnetic waves in a human body in the respective subareas by using a power density value for respective frequency bandwidths in the respective subareas.

Abstract: Provided is a magnetic field measuring device including a first sensor unit which includes a first coil sensor configured to output a first sensor signal, a second sensor unit which includes a second coil sensor configured to output a second sensor signal and disposed in a direction perpendicular to the first coil sensor, a third sensor unit which includes a third coil sensor configured to output a third sensor signal and disposed in a direction perpendicular to the first and second coil sensors, and a digital signal processor outputs magnetic flux density based on a voltage difference between the first and fourth nodes, wherein the first to third sensor units respectively output first to third output signals in which specific voltages of the first to third sensor signals are maintained for a predetermined period of time.