US 12,449,460 B2
System for measuring performance of equipment under test, and method therefor
Kang Wook Kim, Gwangju (KR); Soon Soo Oh, Gwangju (KR); Young Bae Jung, Daejeon (KR); and Jong Hyuk Lim, Icheon-si (KR)
Assigned to NATIONAL RADIO RESEARCH AGENCY, Naju-si (KR)
Filed by NATIONAL RADIO RESEARCH AGENCY, Naju-si (KR)
Filed on Mar. 22, 2024, as Appl. No. 18/613,144.
Application 18/613,144 is a continuation of application No. PCT/KR2021/018457, filed on Dec. 7, 2021.
Claims priority of application No. 10-2021-0160127 (KR), filed on Nov. 19, 2021.
Prior Publication US 2025/0180617 A1, Jun. 5, 2025
Int. Cl. G01R 29/10 (2006.01); G01R 29/08 (2006.01); H04B 17/15 (2015.01)
CPC G01R 29/10 (2013.01) [G01R 29/0878 (2013.01); G01R 29/0892 (2013.01); H04B 17/15 (2015.01)] 12 Claims
OG exemplary drawing
 
1. A system for measuring performance of equipment under test, the system comprising:
a fixing part for fixing equipment under test which is to be tested;
a positioner for controlling a rotation of the equipment under test by controlling the fixing part;
a measurement probe which is installed at a predetermined location spaced apart from the fixing part while being hidden from a line-of-sight of the equipment under test;
a curved reflector formed to reflect an electromagnetic wave radiated by the equipment under test in a direction of the measurement probe and to transform a spherical wave of the measurement probe into a plane wave at a location where the equipment under test is installed;
an arc structure comprising an arc disposed around the fixing part so that the location of the equipment under test becomes a central point;
a probe set comprising a plurality of near-field probes disposed to be spaced predetermined intervals apart from each other on an inner side of the arc; and
a control unit for measuring performance of the equipment under test by receiving signal data corresponding to an input signal from at least some of the plurality of near-field probes and the measurement probe through a signal analyzer.