US 12,078,667 B1
Positioning and weighting test probes in an anechoic chamber
Jukka-Pekka Nuutinen, Martinniemi (FI); John Douglas Reed, Arlington, TX (US); and Alfonso Rodriguez-Herrera, Denton, TX (US)
Assigned to SPIRENT COMMUNICATIONS, INC., San Jose, CA (US)
Filed by Spirent Communications, Inc., San Jose, CA (US)
Filed on Feb. 12, 2021, as Appl. No. 17/175,545.
Claims priority of provisional application 62/981,998, filed on Feb. 26, 2020.
Claims priority of provisional application 62/976,340, filed on Feb. 13, 2020.
Int. Cl. H04B 17/11 (2015.01); G01R 29/08 (2006.01); G01R 29/10 (2006.01); H04B 17/10 (2015.01); H04B 17/391 (2015.01); H04B 7/0413 (2017.01)
CPC G01R 29/0821 (2013.01) [G01R 29/105 (2013.01); H04B 17/102 (2015.01); H04B 17/3912 (2015.01); H04B 7/0413 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An anechoic test chamber, including:
a subset of six selected antenna probes that are active from a full set of probes that are available in the anechoic test chamber; and
at least five of the probes are positioned in the anechoic chamber such that
the probes are aligned in azimuth along four first lines separated from a center point by +/−5 degrees and +/−15 degrees; and
the probes are further aligned in elevation along three second lines perpendicular to the first lines at the center point and separated from the center point by +/−5 degrees; and
wherein the alignments in azimuth and elevation are within 3 degrees measured spherically of the alignments stated.