As a specialized manufacturer focused on the design and manufacturing of microwave absorbers, Microwave Absorbers Inc. provides application-specific products through a diverse lineup of materials and shapes, including thin sheet-type absorbers. The following sections introduce the product key features and specifications, recommended applications, and the company’s support services.
The MS-H series is a thin, sheet-type absorber that maintains effective microwave absorption performance even at oblique angles of incidence. The thin sheet allows for easy processing and installation, and also offers high durability. The MS-H series is suitable for use in controlling unwanted radiation noise and module internal signal leakage in applications such as ETC, various radar systems, and 5G/6G communications, as well as for preventing malfunctions in communication equipment.
Reference: Microwave Absorbers Inc. Official Website（https://mwa.co.jp/en/product/pro01_01.html）
Broadband microwave absorber panels capable of absorbing electromagnetic waves across a wide frequency range from 300 MHz to 110 GHz. In addition to excellent microwave absorption performance at oblique angles of incidence, the panel can be easily cut and processed, allowing for simple on-site installation. It is suitable for use in the development and quality evaluation testing of wireless modules and communication terminals.
Reference: Microwave Absorbers Inc. Official Website（https://mwa.co.jp/en/product/pro01_02.html）
A lightweight, single-layer, broadband millimeter-wave absorber formed by injection molding. Formed as a single-layer structure using PA, PC, or PP resin, it is suitable for suppressing interference between components inside millimeter-wave SRR radar horns and millimeter-wave ECU housings. It can also be implemented as a key sensor technology in automotive autonomous safety driving systems.
Reference: Microwave Absorbers Inc. Official Website（https://mwa.co.jp/en/product/pro01_03.html）
This resource introduces recommended microwave absorbers suitable for various applications. Please use this information as a reference when selecting microwave absorbers and manufacturers that meet your specific needs, including next-generation R&D and high-density packaging applications.
Microwave absorbers should be selected based on the target frequency, installation space, and purpose of use, such as reflection control, leakage suppression, or interference reduction.
| Product | Frequency Bandwidth | Absorption Performance | Size | Material | Use Case |
|---|---|---|---|---|---|
| EC-SORB® VHP | 200MHz to 110GHz | 30dB to 50dB | 61cm × 61cm Height 11cm to 114cm |
Polyurethane foam + conductive carbon | Suited for chamber wall and ceiling installation |
| EC-SORB® AN | 0.6 GHz to 320 GHz | More than 20 dB | 61cm × 61cm, Thickness 0.6cm to 11.4cm | Polyurethane foam + conductive carbon | Direct attachment or hanging on objects where reflections must be suppressed |
| EC-SORB® ECP-3 | 3 GHz to 320 GHz | Up to 50 dB | 61cm × 61cm, Height 8.3 cm | Urethane foam | Millimeter-wave applications and large-angle incidence |
The MS-H series is suitable for compact devices, communication modules, antenna surroundings, and other areas where a thin, flexible sheet-type absorber is needed. It is useful for applications such as ETC, 5G, Wi-Fi/BLE, UHF-RFID, and ADAS-related equipment.
The MS-F series is recommended for larger areas where broadband absorption is required, such as wireless module evaluation, anechoic chambers, outdoor measurement support, and environments with strong reflected waves.
The Injection Resin Absorber for Millimeter Wave is suitable for 75 GHz to 81 GHz millimeter-wave radar applications, including radar horns and mmWave radar ECU units where TX-RX interference noise must be reduced.
EC-SORB® VHP is suitable for chamber wall and ceiling installation where high absorption performance is required, while EC-SORB® AN works well for direct attachment or hanging around reflective objects. EC-SORB® ECP-3 is recommended for millimeter-wave applications and large-angle incidence conditions.
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.
Microwave Absorbers offers a total solution that involves measuring the communication environment and noise at the site, proposing suitable products, and carrying out their installation. Inquiries can be made via the inquiry form on their official website, where the company provides support for product selection and offers advice based on specific application examples. Microwave Absorbers also accepts inquiries via telephone or fax.
Before contacting a manufacturer or supplier, prepare the key conditions below to help them recommend a suitable microwave absorber.
| Company Name | Microwave Absorbers Inc. |
|---|---|
| Headquarters Address | 5-4-5 Asakusabashi, Taitou-ku, Tokyo 111-0053 JAPAN |
| Official Website | https://mwa.co.jp/en/ |
| 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.