1m Method Automotive Component Anechoic Chamber

1m Method Automotive Component Anechoic Chamber Introduction

Designed for Radiated Emissions (EMI) and Radiated Immunity (EMS) testing of automotive components and military-standard equipment, supporting EMC validation for automotive electronics (e.g., vehicle communication modules, battery management systems) and military devices. Ensures compliance with core automotive and military standards in a compact space.

Key Test Parameters

Test Distance	1m (standard distance from EUT to receiving antenna)
Typical Internal Dimensions (larger samples may require expanded chambers)	Length: ~6.2m (includes test distance and equipment layout) Width: ~5.4m (accommodates equipment placement) Height: ~3.6m (accounts for antenna size and absorber installation)
Absorbing Materials	Walls/Ceiling: Ferrite tiles + hybrid absorbers (optimized for 30 MHz–18 GHz; extendable to 40 GHz) Floor: Metallic ground plane (with copper finger stock for electrical continuity)
Shielded Door	Electromagnetic shielding door meeting automotive/military shielding efficacy requirements

Critical Performance Metrics

Shielding Effectiveness	Low Frequency (14 kHz–1 MHz): ≥80 dB High Frequency (1 MHz–6 GHz, extendable to 18 GHz): Typically ≥100 dB
ALSE Performance Validation (Long-Wire Antenna or Reference Measurement Method)	Compliance: CISPR 25 (GB/T 18655) Tolerance: Within±6 dB (≥90% of frequency points in 150 kHz–1 GHz range)
Grounding Resistance	Standard: IEC 60364-6 (GB/T 16895.23) Requirement: <4Ω
Insulation Resistance	Standard: IEC 60364-6 (GB/T 16895.23) Requirement: >2 MΩ
Ambient Noise Level	Compliance: CISPR 25 (GB/T 18655) Requirement: At least 6 dB below Class 5 limits
Test Table Grounding Resistance	Standard: CISPR 25 (GB/T 18655) Requirement: <2.5 mΩ between reference ground plane and test table ground plane

Antenna & Test System Configuration

Antenna Types	Dual-polarized (horizontal/vertical, >30 MHz), covering 150 kHz–6 GHz (extendable to 18 GHz)
Load Capacity & Dimensions	Compatible with automotive components (e.g., headlights, ECUs, sensors)
Positioning Accuracy	±1°
Antenna Tower	Height-adjustable for 1m method testing