Electronics and Telecommunications Research Institute

Seoul National University

Young Seung Lee

Woo Jin Byun

Min Soo Kang

Kwang Seon Kim

Bong Su Kim

Sang Bong Jeon

Yong Heui Cho

Mi Kyung Suk

Jae-young Chung

Disclosed is an in vitro exposure system that may radiate a uniform field having a constant wavefront to an experimental cell container and expose each cell container to a same electromagnetic field.

In vitro exposure system

The present invention relates to a reception apparatus. The reception apparatus includes a plurality of reception antennas; and a signal processing unit configured to use reception characteristic of the plurality of reception antennas, wherein the signal processing unit comprises a channel estimation unit configured to respectively estimate a channel response matrix of each signal received via the plurality of reception antennas, and a coding unit configured to define a coding matrix based on an inverse matrix of the estimated channel response matrix, and to obtain a final output signal corresponding to each reception antenna by applying the coding matrix to each received signal.

Reception apparatus of multi input multi output system and reception signal processing method

A reflective antenna apparatus according to an exemplary embodiment of the present invention includes a feeder which receives an electromagnetic wave from a transmitter and distributes the electromagnetic wave to the antenna apparatus; a sub reflector which has a step formed to generate an orbital angular momentum (OAM) mode electromagnetic wave; and a main reflector which has a step formed to generate the same electromagnetic wave as the OAM mode generated by the sub reflector and cancels the OAM mode electromagnetic wave generated by the sub reflector and an OAM mode electromagnetic wave generated by the main reflector to radiate the electromagnetic waves to a far field.

Reflective antenna apparatus and design method thereof

Growing community of inventors

Daejeon, South Korea

Young Seung Lee