Full Anechoic Chamber / Room (FAC / FAR)

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3m Full Anechoic Chamber with Antenna Masts and Floor Absorbers

The 3m Full Anechoic Chamber is designed to conduct comprehensive compliance measurements of radiated emissions and immunity at a 3-meter testing distance. This versatile EMC test facility is utilized for both commercial and telecommunications testing. The chamber features a robust construction, including a 2mm galvanized pan-type panel system, parallel-closing RF shielded doors, and polystyrene hybrid absorbers on the walls, floor, and ceiling. These elements work together to create a high-performance, controlled electromagnetic environment that meets international standards for immunity and emission testing.

The main purpose of a 3m full anechoic chamber is to perform full compliance measurements of radiated emission and immunity at 3m test distance. The 3m full anechoic chamber is a multi-functional EMC test facility for commercial and telecom testing. The combination of the pan-type 2mm galvanized panel system, parallel closing RF shielded doors and polystyrene hybrid absorbers on the walls, floor and ceiling creates a high performance controlled electromagnetic environment that complies with international immunity and emission test standards. 

Features of a 3m full anechoic chamber:
Full compliance emission test site for frequency range of 30MHz to 18GHz as per CISPR 16-1-4 (2010) +annex A1 (2012) (free space testing)

Full compliance immunity test site for frequency range of 80MHz to 6GHz as per IEC/EN 61000-4-3
Shielding effectiveness according to EN 50147-1 (>80dB at 10kHz)

Acceptance standards for a 3m full anechoic chamber:
CISPR 16-1-4
IEC/EN 61000-4-3
EN 50147-1
ANSI C63.4

Product standards for a 3m full anechoic chamber:
CISPR 32
CISPR 35
CISPR 11
CISPR 14
CISPR 15

Typical performance of a 3m full anechoic chamber:

FSNSA: +/-3.5dB at 3m test distance
sVSWR: ≤ 5.5dB at 3m test distance
FU: 75% of 16 points ≤ 6dB at 3m test distance & 1.5*1.5m test window (0.8m above floor level)

Typical specifications for a 3m full anechoic chamber:

External dimensions8.8m*5.8m*4.8m(L*W*H)
Dimensions8.2m*5.2m*4.2m(L*W*H)
Control room dimensions4.0m*4.0m*3.0m(L*W*H)
Amplifier room dimensions4.0m*2.1m*3.0m(L*W*H)
Construction2mm galvanized shielding panels with a free standing structural steel support
AbsorbersHybrid solution of ferrite tiles and polystyrene hybrid absorber on walls, floor and ceiling
Ventilation300mm*300mm/18GHz
Shielded doorRF shielded swing door 1.2m*2.1m (W*H)
Ground interface board400mm*400mm/18GHz, including RF connectors
EUT power lineFiltered 220V 32A 50Hz/60Hz; 380V 63A 50Hz/60Hz
LightingInterference-free LED automatic lifting and lighting system
Frequency range30MHz to 18GHz for radiated emission and 80MHz to 6GHz for radiated immunity
Quiet zone sizeDiameter 1.5m, height 1.5m
FloorFerrite tiles and hybrid absorbers incl. a walk way solution.
Positioning systemOptical fiber control turntable, turntable diameter 2m;Optical fiber control antenna tower, 1-3m lifting.