公开(公告)号：US20150171976A1

公开(公告)日：2015-06-18

申请号：US14217714

申请日：2014-03-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sang Tae KIM ,  Haeng Sook RO ,  Gwangmoon PARK ,  Seong Yun LEE ,  Mi-Kyung SUK ,  Yong-Seok CHOI

IPC: H04B17/00 ,  H04B1/16

CPC classification number: H04B17/12 ,  H04B1/1027

Abstract: A wideband RF receiver includes a dual mode antenna configured to drive in an active antenna mode when a bias power is supplied thereto and to drive in a passive antenna mode when a power is not supplied thereto; and a hybrid interface apparatus configured to supply the bias power to the dual mode antenna and configured to provide a control signal that enables the dual mode antenna to drive in the active antenna mode or the passive antenna mode. Further, the wideband RF receiver includes a radio measuring and receiving apparatus configured to measure a signal level of an input value that the hybrid interface apparatus outputs the control signal.

Abstract translation: 宽带RF接收机包括双模式天线，其配置为当向其提供偏置功率时以有源天线模式驱动并且当不向其提供电力时以无源天线模式驱动; 以及混合接口装置，被配置为将所述偏置功率提供给所述双模式天线，并且被配置为提供使所述双模式天线能够以所述有源天线模式或所述无源天线模式驱动的控制信号。 此外，宽带RF接收机包括被配置为测量混合接口装置输出控制信号的输入值的信号电平的无线电测量和接收装置。

公开(公告)号：US20150071310A1

公开(公告)日：2015-03-12

申请号：US14211812

申请日：2014-03-14

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sang Tae KIM ,  Gwangmoon PARK ,  Seong Yun LEE ,  Haeng Sook RO ,  Mi-Kyung SUK ,  Yong-Seok CHOI

IPC: H04L7/00

CPC classification number: H04B7/0874 ,  H04B7/086

Abstract: A radio measurement apparatus comprising: an array antennal selection unit selecting array antennas corresponding to received signals; a reference path selection unit selecting a reference array antenna; a signal processing unit selecting a reference antenna channel through analysis of signal characteristics measured through two reception channels; a sequential channel multiplex unit determining sequentially inputting received signals of remaining array antennas to output the sequentially input signals to a receiver; and a correction signal input unit compensating amplitude and phase characteristics of the respective reception channels.

Abstract translation: 一种无线电测量装置，包括：阵列天线选择单元，选择与接收信号相对应的阵列天线; 参考路径选择单元，选择参考阵列天线; 信号处理单元，通过分析通过两个接收信道测量的信号特性来选择参考天线信道; 顺序信道多路复用单元确定顺序输入剩余阵列天线的接收信号，以将顺序输入的信号输出到接收机; 以及校正信号输入单元，用于补偿各个接收信道的幅度和相位特性。

公开(公告)号：US20210280977A1

公开(公告)日：2021-09-09

申请号：US17132195

申请日：2020-12-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Haeng Sook RO ,  Kanghee KIM ,  Gwangmoon PARK ,  Soo-Ho SOHN ,  Ki Cheol TAE

IPC: H01Q9/06 ,  H01Q1/26 ,  H01Q1/38 ,  H01Q1/24 ,  H01Q21/24

Abstract: A dipole antenna fed by a planar balun includes a first radiation element and a second radiation element respectively corresponding to poles of the dipole antenna, at least one dipole support column configured to connect the first radiation element and the second radiation element and to fix a gap between the first radiation element and the second radiation element, a planar balun connected to the first radiation element and the second radiation element and configured to feed the first radiation element and the second radiation element, and a balun housing coupled to the dipole support column and enclosing the planar balun.

公开(公告)号：US20140064349A1

公开(公告)日：2014-03-06

申请号：US14051525

申请日：2013-10-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Gwangmoon PARK ,  Sang-Tae KIM ,  Seong-Yun LEE ,  Haeng-Sook RO ,  Mi-Kyung SUK ,  Heung-Yong KANG ,  Yong-Seok CHOI

IPC: G01S3/04

CPC classification number: G01S3/046 ,  G01S3/043 ,  G01S3/74 ,  G01S5/04

Abstract: A digital spectrum analysis apparatus and method for direction finding (DF) and location is provided. The digital spectrum analysis apparatus includes: a multi-channel unit configured to convert signals inputted from antennas into digital signals, reduce a sampling rate of the digital signals by using a digital down converter (DDC), and convert the digital signals into baseband complex signals, and having a plurality of channels; a DF estimator configured to estimate the direction of the signal; a spectrum processing unit configured to map any one of a bearing and a power level of the baseband complex signal into coordinate system, and allocate different colors to one of the bearings and the power levels depending on the accumulation ratio of one of the bearing and the power level; and a display unit configured to display the power level and the bearing with colors.

Abstract translation: 提供了一种用于方向查找（DF）和位置的数字频谱分析装置和方法。 数字频谱分析装置包括：多通道单元，被配置为将从天线输入的信号转换为数字信号，通过使用数字下变频器（DDC）降低数字信号的采样率，并将数字信号转换为基带复合信号 并具有多个通道; DF估计器，被配置为估计所述信号的方向; 频谱处理单元，被配置为将所述基带复合信号的方位和功率电平中的任一个映射到坐标系中，并且根据所述轴承和所述轴承的一个的累积比，将不同的颜色分配给所述轴承和所述功率电平中的一个 能量等级; 以及显示单元，被配置为用颜色显示功率水平和轴承。