E&C Anechoic Chambers provides various microwave absorbers, such as pyramidal and hybrid types, that can be optimized for a wide range of applications, including EMC testing. The following sections introduce the product features and specifications, applications, and the company’s support services.
WAVASORB® VHP is a broadband pyramidal microwave absorber made of carbon-loaded polyurethane foam. Exhibiting high absorption across the broad range of 100 MHz to 500 GHz, these absorbers are usable throughout entire anechoic chambers. Furthermore, suitable for electromagnetic testing environments, including anechoic chambers, antenna testing, and RCS measurements.
Reference: E&C Anechoic Chambers Official Website（https://www.ecanechoicchambers.com/pdf/WAVASORB VHP datasheet full version_final.pdf）
WAVASORB® VHY is a hybrid microwave absorber composed of ferrite tiles and truncated pyramidal foam sections. The optimized geometry ensures stable absorption characteristics across the EMC test frequency range. Additionally, due to its high power resistance under continuous wave exposure, WAVASORB® VHY is capable of accommodating commercial and military EMC measurements at distances ranging from 1 m to 10 m.
Reference: E&C Anechoic Chambers Official Website（https://www.ecanechoicchambers.com/pdf/WAVASORB VHY datasheet full version_final.pdf）
WAVASORB® FS is a flat sheet-type microwave absorber fabricated from flexible, carbon-loaded urethane foam. Combining excellent workability with flame retardancy and environmental compliance, it is ideal for suppressing reflections in chamber corners and on complex-shaped structures. Furthermore, effective in a wide range of electromagnetic testing environments, including antenna testing, RCS measurements, and electronic warfare testing.
Reference: [PDF]E&C Anechoic Chambers Official Website（https://www.ecanechoicchambers.com/pdf/WAVASORB FS datasheet full version_final.pdf）
This resource provides a detailed overview of products tailored to various applications, including next-generation R&D, high-density packaging, stealth technology, and RCS reduction. Please use this information as a reference for selecting the microwave absorber that best suits your company’s needs.
E&C absorbers should be selected based on the test environment, frequency range, and whether the main need is full chamber lining, EMC compliance testing, or reflection control in complex areas.
| Product | Frequency Bandwidth | Absorption Performance | Size | Material | Use Cases |
|---|---|---|---|---|---|
| WAVASORB® VHP | 100 MHz to 500 GHz | 18 dB to 55 dB | 61 cm × 61 cm | Carbon-loaded polyurethane foam | General chamber lining and mmWave ranges |
| WAVASORB® VHY | 9 kHz to 100 GHz | Up to approximately 30 dB | 60 cm × 60 cm | Ferrite tile + carbon-loaded polyurethane foam |
EMC chambers for 1–10m test distances |
| WAVASORB® FS | Not specified | Not specified | 61 cm × 61 cm | Flexible carbon-loaded urethane foam |
Corners and complex chamber areas |
WAVASORB® VHP is suitable for broadband chamber lining in EMC, antenna, OTA, RCS, and electronic warfare test environments. Its wide frequency coverage also makes it useful for millimeter-wave applications up to 500 GHz.
WAVASORB® VHY is recommended for EMC test chambers that require stable absorption from low to high frequencies. Its hybrid ferrite and foam structure is suitable for commercial, industrial, automotive, aerospace, and defense EMC testing.
WAVASORB® FS is suitable for chamber corners, curved surfaces, and complex-shaped structures where standard pyramidal absorbers are difficult to install. Its flexible sheet form helps suppress reflections in areas requiring easy workability.
The RF absorber market is expanding rapidly, driven by the increasing need for EMI (Electromagnetic Interference) reduction in 5G/6G, autonomous driving, and defense applications.
This site provides comparative information on products and manufacturers by application to help you identify the ideal solutions for R&D, anechoic chambers, and high-frequency testing.
E&C Anechoic Chambers provides comprehensive support ranging from the design and installation to the validation of anechoic chambers and electromagnetic testing environments. Maintaining technical hubs and sales networks in each region, the company provides consistent technical support from material selection to maintenance management. Furthermore, under a quality management system based on ISO 9001, it guarantees long-term microwave absorption performance and safety.
Before contacting E&C Anechoic Chambers or a supplier, prepare the key technical conditions below to help identify the most suitable WAVASORB® absorber.
| Company Name | E&C Anechoic Chambers nv |
|---|---|
| Headquarters Address | Nijverheidsstraat 7A B-2260 Westerlo Belgium |
| Official Website | https://www.ecanechoicchambers.com/index.html |
| Frequency Range |
|---|
| 3GHz-320GHz |
| Material |
| Urethane Foam |
| Key Features |
| Up to 50 dB of absorption |
At just 550g per panel—approximately half the weight of competing products (*1)—this polyurethane foam absorber covers a wide frequency range from 3 to 320 GHz.
Delivers 50 dB absorption, outperforming conventional heavy ferrites.
Velcro-backed for rapid mounting, ideal for temporary setups and cost-effective maintenance.
| Frequency Range |
|---|
| 20MHz-3GHz |
| Material |
| Elastomer |
| Key Features |
| Permeability (at 1 MHz): 150 |
Heat-resistant elastomer: Designed for direct SMT processing and high-temperature durability.
Ultra-thin (from 0.1 mm) for high-density integration with robust EMI suppression.
It significantly reduces assembly workload and enables EMI countermeasures without altering the existing manufacturing process.
| Frequency Range |
|---|
| 1-35 GHz |
| Material |
| Elastomer |
| Key Features |
| Reflection Performance: –20 dB |
Frequency-tuned for specific radar absorption, offering superior stealth performance over standard RF sheets (*2).
Millimeter-thin design delivers –20 dB reflection, ensuring high absorption while preserving aerodynamic integrity.
Excellent conformance to complex geometries with thermal stability from –60°C to 150°C—ideal for aerospace platforms.