公开(公告)号：US20140287706A1

公开(公告)日：2014-09-25

申请号：US13899244

申请日：2013-05-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Myoung-Won JUNG ,  Young Jun CHONG ,  Jong Ho KIM

IPC: H04B17/00

CPC classification number: H04B17/318

Abstract: An apparatus for determining a received signal level of a radio wave in a ray-tracing wave propagation environment includes a reception unit configured to receive the radio wave; and an analyzing unit configured to determine the received signal level of the radio wave in the ray-tracing wave propagation environment. Further, the analyzing unit is configured to analyze a correlation of the height and altitude of a surface roughness that recognizes the surface of a surrounding obstacle depending on the length of wavelength in the course of delivery of a received signal of the radio wave and analyze precisely the scattering of the received signal depending on the surface roughness to determine the received signal level of the radio wave when determining the received signal level.

Abstract translation: 一种用于确定射线跟踪波传播环境中的无线电波的接收信号电平的装置，包括接收无线电波的接收单元; 以及分析单元，被配置为确定所述射线跟踪波传播环境中的所述无线电波的接收信号电平。 此外，分析单元被配置为根据无线电波的接收信号的传送过程中的波长长度来分析识别周围障碍物的表面的表面粗糙度的高度和高度的相关性，并且精确地分析 接收信号的散射取决于表面粗糙度，以在确定接收信号电平时确定无线电波的接收信号电平。

公开(公告)号：US20140257779A1

公开(公告)日：2014-09-11

申请号：US13908054

申请日：2013-06-03

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： YOUNG KEUN YOON ,  Jong Ho KIM ,  Young Jun CHONG ,  Jea Ick CHOI

IPC: G06F17/50

CPC classification number: G06F17/5009 ,  G06F17/5004 ,  G06F2217/16 ,  G06T13/40 ,  G06T15/06

Abstract: A ray path tracing method using a three-dimensional (3D) modeling structure, includes: generating and developing a 3D modeling structure of a glass window and a window frame; setting a ray transmitting point and a ray receiving point at respective positions, and generating a ray from the transmitting point; and forming a path of a transmitted wave ray, passing through the glass window and analyzing a propagation characteristic of the transmitted wave ray.Further, the ray path tracing method includes forming respective paths of the transmitted wave ray, a reflected wave ray, and a diffracted wave ray, and analyzing respective propagation characteristics of the transmitted wave ray, reflected wave ray, and diffracted wave ray; and calculating electric field intensities at the receiving point about all the paths formed between the transmitting point and the receiving point.

Abstract translation: 使用三维（3D）建模结构的射线路径跟踪方法包括：生成和开发玻璃窗和窗框的3D建模结构; 在各个位置设置射线发射点和射线接收点，并从所述发射点产生射线; 并且形成通过玻璃窗的透射波的路径，并分析透射波的传播特性。 此外，射线追踪方法包括形成发射波束的各路径，反射波射线和衍射波束，分析发射波束，反射波射线和衍射波束的各自的传播特性; 并且计算接收点处关于在所述发射点和所述接收点之间形成的所有路径的电场强度。

公开(公告)号：US20130293318A1

公开(公告)日：2013-11-07

申请号：US13753649

申请日：2013-01-30

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ju Yeon HONG ,  Young Jun CHONG

IPC: H03H7/01

CPC classification number: H03H7/0115 ,  H03H7/1708 ,  H03H7/175 ,  H03H7/1775

Abstract: The present invention relates to the bandpass filter of an RF communication system. The bandpass filter embodies a dual band characteristic by combining an equilibrium zero-order resonator and a non-equilibrium zero-order resonator, provides transmission zero using a cross-coupling structure near a pass band, and also has a neighboring signal blocking characteristic.

Abstract translation: 本发明涉及RF通信系统的带通滤波器。 带通滤波器通过组合平衡零级谐振器和非平衡零级谐振器来实现双频带特性，使用在通带附近的交叉耦合结构提供传输零，并且还具有相邻的信号阻塞特性。