Laird Technologies provides a wide range of microwave absorbers, including those for high-density packaging. Their products offer high attenuation in high-frequency applications with a thickness of only 0.1 millimeters. The following sections introduce their product key features, specifications, recommended applications, and the company’s support services.
This is a silicone-based high magnetic permeability elastomer absorber capable of effectively suppressing low-frequency EMI noise. Eccosorb™ RF-LB is flexible and highly heat-resistant, making it suitable for automotive, telecommunications, medical, and industrial applications. Examples include suppression of radiated noise on CPUs, ICs, and circuit boards, reduction of cable crosstalk, and cavity resonance damping.
Reference: Laird Technologies Official Website（https://www.laird.com/products/absorbers/thin-elastomer-absorbers/nearfield-film/eccosorb-rf-lb）
This lightweight and corrosion-resistant thin microwave absorber achieves high attenuation rates in cavity resonance issues and surface current damping. It is also designed to address antenna-to-antenna interference, internal cavity resonance, and interference reflection, making it suitable for aerospace and defense, automotive, and consumer applications.
Reference: Laird Technologies Official Website（https://www.laird.com/products/absorbers/thin-elastomer-absorbers/silicone-elastomer-sheet/cavity-resonance-absorbers/eccosorb-rf-lw）
This is a thin, flexible, high-loss silicone rubber absorber designed for high-frequency range. In addition to possessing high dielectric constant and magnetic permeability, its performance is unaffected even in high-altitude environments. Consequently, it is suitable for applications such as satellite communication equipment, radar detection systems, space applications, and optical equipment.
Reference: Laird Technologies Official Website（https://www.laird.com/products/microwave-absorbers/microwave-absorbing-elastomers-and-films/eccosorb-gds）
This resource introduces recommended microwave absorbers suitable for various applications, such as high-density packaging in high-frequency bands, next-generation R&D, and stealth technology. Please use this information as a reference for selecting products that match your company's needs and objectives.
| Product | Frequency Bandwidth | Absorption Performance | Size | Material | Use Cases |
|---|---|---|---|---|---|
| Eccosorb™ RF-LB | 10 MHz to 4 GHz | 50 dB/cm or more at 2.5 GHz | Approximately 30.5 cm × 30.5 cm thickness: 0.5 mm to 3.18 mm |
Silicone-based elastomer | Low-frequency EMI and surface-current suppression |
| Eccosorb™ RF-LW | 800 MHz to 6 GHz | 85 dB/cm at 6 GHz | Approximately 30.5 cm × 30.5 cm thickness: 0.25 mm to 3.0 mm |
Silicone-based elastomer | Cavity resonance and antenna interference control |
| Eccosorb™ GDS | 18 GHz to 35 GHz | 80 dB/cm at 20 GHz | Standard approximately 30.5 cm × 30.5 cm, thickness: 0.76 mm | Silicone-based high-loss elastomer | High-frequency cavity damping for radar/space |
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.
As a global leader in providing EMI (electromagnetic interference) solutions and thermal management solutions,the company offers extensive support, particularly for microwave absorbers. Specifically, it provides support from dedicated technical teams, customization and design assistance for absorbers tailored to specific applications, and information such as product selection guides, performance characteristics, and test data.
| Company Name | Laird Technologies, Inc. |
|---|---|
| Headquarters Address | 16401 Swingley Ridge Rd #700, Chesterfield, MO 63017 |
| Official Website | https://www.laird.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.