ANECHOIC CHAMBERS

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ANECHOIC CHAMBERS

An Anechoic Chamber by Astra Shield is a high performance, controlled environment engineered to suppress both electromagnetic and acoustic energy. The term “anechoic” meaning “no echo.” These chambers are accurately designed by Astra Shield to absorb reflections of electromagnetic (EM) or acoustic waves, making them essential for precision testing of EMI devices, antennas, EMC compliance, radar systems, and acoustic components.

Construction & Core Components by Astra Shield

    1. RF Shielded Enclosure by Astra Shield

    Every Astra Shield anechoic chamber starts with an EMI shielded enclosure. This acts as a Faraday cage to eliminate external EMI.

    Astra Shield-designed enclosures feature:

  • Precision-engineered RF-shielded doors (manual or motorized)

  • Waveguide honeycomb for ventilation without interference

  • Filtered power and signal line entry points

  • Optical fiber feedthrough panels

    2. RF Absorbers by Astra Shield

    Interior walls are lined with RF absorbers tailored to the test frequency range.

    Materials used by Astra Shield include:

  • Carbon-loaded pyramidal or wedge-shaped polyurethane foam

  • Ferrite tiles for low-frequency applications (30 MHz to 1 GHz)

  • Custom absorber profiles and heights for optimal reflection control

  • Optical fiber feedthrough panels

    3. Floor and Structural Systems – Custom by Astra Shield

  • Non reflective flooring with resistive surface or absorber tiles

  • Load-bearing flooring for walk-in and drive-in chambers

Types of Anechoic Chambers by Astra Shield

CHAMBER TYPE APPLICATION
EMC / EMI Chambers Product compliance testing (MIL-STD)
Antenna Measurement Chambers Far-field, near-field, and compact range antenna tests
Radar & RCS Chambers Radar cross-section testing, military radar evaluation
Hybrid Chambers Audio device testing, microphone/speaker calibration
Hybrid Chambers Audio device testing, microphone/speaker calibration

Sectors Served by Astra Shield

  • Defense & Aerospace – RCS testing, avionics, radar, guidance systems

  • Telecommunications – 5G, Wi-Fi, IoT, antenna calibration

  • Medical – EMI testing of pacemakers, diagnostic gear

  • Automotive – ECU validation, infotainment, V2X systems

  • Consumer Electronics – Mobile, routers, smart devices

  • Academia & Research – Electromagnetic and acoustic research labs

Compliance & Control

  • Why Choose Astra Shield?

  • Turnkey Execution: From concept ➝ design ➝ build ➝ test ➝ commission

  • Standard Compliance: MIL-STD, CISPR, IEEE 299

  • Fully Customized Solutions: From compact chambers to 30m+ facilities

  • Ongoing Support: Post-sale testing, upgrades, and maintenance

  • Trusted Partner: Deployed by governments, defense labs, hospitals, and global tech leaders

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