The TDK 3 meter test range CISPR semi-anechoic RF chamber is designed to perform radiated emissions measurements at 3 meter distance in full compliance with ANSI C63.4, EN 50147-2 & CISPR 22 standards.
By installing TDK ferrite tiles onto dielectric panels (double layer, TDK patent) to cover the frequency range from 30 MHz to 1,000 MHz, the 3m EMC anechoic chamber dimensions can be reduced to 9.0 m long x 6.0 m wide x 5.4 m high (29'-6" L x 19'-8" W x 17'-8" H). TDK guarantees NSA deviation of within ±3.5 dB for a test volume of 2 m Ø, 2 m high.
TDK IP-045C wedge-shaped, fully matched resistive absorbers installed in selected areas of ceiling and walls extend the frequency range up to 18 GHz. White end caps complete the EMC absorbers and greatly improve the illumination levels inside the 3m EMC chamber.
Example of actual NSA results in a TDK 3 meter test range CISPR semi anechoic chamber (measured by ARC Seibersdorf).
Dimensions: 9.0 m long x 6.0 m wide x 5.4 m high (29'-6" L x 19'-8" W x 17'-8" H)
Absorbers: IB-015 fully lined double layer ferrite tile IP-045C partially lined absorber
NSA test volume ±3.5dB (@3m): 2.0 m Ø, 2.0 m high
Field uniformity area (-0, +6dB): 1.5 x 1.5 m, 0.8 m from floor
Radiated emissions: Compliance with ANSI C63.4, EN 50147-2, CISPR 22
Radiated immunity: Compliance with IEC 1000-4-3
EMI frequency range: 30 MHz - 18 GHz
EMS frequency range: 26 MHz - 18 GHz