dB Absorber offers high-performance, broadband microwave absorbers for RF and microwave applications. The following sections introduce product key features, specifications, ideal applications, and the company's support services.
A broadband microwave absorber designed for indoor use, ideal for installation on the inner walls of anechoic chambers and in RF anechoic chambers. It is also suitable for establishing high-precision broadband measurement environments for EMC measurements, antenna pattern evaluation, radar testing, and OTA (Over-The-Air) testing.
Reference: dB Absorber Official Website（https://dbabsorber.com/products/pyramidal-rf-absorber-2in）
This is an 8-inch pyramidal polyurethane foam anechoic chamber absorption tile designed for indoor use. This absorber is certified for flame resistance based on the NRL 8093 test and maintains performance under continuous wave (CW) radiation up to 1 kW/m². It is suitable for applications such as EMC measurements, antenna pattern evaluation, and radar testing.
Reference: dB Absorber Official Website（https://dbabsorber.com/products/pyramidal-rf-absorber-8in）
A set of 10 pyramidal, 18-inch polyurethane foam anechoic chamber absorber tiles. They are designed for indoor use and engineered to adapt to environmental changes ranging from −50°C to +80°C. These absorbers enable the establishment of high-precision broadband measurement environments for EMC measurements, antenna pattern evaluation, radar testing, and OTA (Over-The-Air) testing.
Reference: dB Absorber Official Website（https://dbabsorber.com/products/copy-of-10-count-rf-absorber-18in-pyramidal）
This resource introduces products suitable for various applications, such as 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.
| Product | Frequency Bandwidth | Absorption Performance | Size | Material | Use Cases |
|---|---|---|---|---|---|
| RF Absorber 2in | 1.5 GHz to 40 GHz | 7 dB to 40 dB | 20×20 inches (50.8cm × 50.8cm) |
Polyurethane | Compact high-frequency chamber sections |
| RF Absorber 8in | 0.5 GHz to 40 GHz | 25 dB to 60 dB | 20×20 inches (50.8cm × 0.8cm) |
Polyurethane | General-purpose broadband chamber lining |
| RF Absorber 18in | 0.3 GHz to 40 GHz | 20 dB to 60 dB | 24×24 inches (60.1cm × 60.1cm) |
Polyurethane | Lower-frequency chamber lining |
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.
Based in Carson, California, dB Absorber manages its entire inventory within the United States. This allows for a standard shipping turnaround of 1 to 2 business days. All products undergo performance testing compliant with NRL 8000 standards and are manufactured under strict quality control. The company also offer integration with third-party products and support custom designs.
| Company Name | dB Absorber |
|---|---|
| Headquarters Address | 24424 S Main St, Ste 603, Carson, California 90745 |
| Official Website | https://dbabsorber.com/ |
| 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.