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:
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:
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 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 is a wireless power transmission including a power supplying unit configured to output external power as a power signal having a set frequency, a power transmitting unit configured to output the power signal from the power supplying unit as a wireless power signal of an EMF type, and a controller configured to output a power control signal for controlling an output level of the wireless power signal, wherein the controller calculates a SAR and inner body temperature variation amount by using EMF and temperature measurement data transmitted from the implantable medical device in the power transmission process, and outputs the power control signal according to a result of comparing the calculated SAR and inner body temperature variation amount with a reference value.
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:
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:
Provided is a magnetic shielding sheet. The magnetic shielding sheet according to an embodiment of the inventive concept may include a magnetic sheet including a magnetic material, a plurality of first metal strips provided on the magnetic sheet in a first direction, and a plurality of second metal strips provided on the magnetic sheet in a second direction different from the first direction. According to the inventive concept, a magnetic field applied from the outside may be efficiently shielded by properly arranging the metal strips on the magnetic sheet.