Microwave Factory is capable of providing microwave absorbers with stable broadband performance from millimeter-wave to sub-terahertz frequencies, contributing to next-generation R&D applications. The following sections introduce products that can be utilized for 5G/6G, autonomous driving, satellite communications, and more, including their key features, applications, and the company’s Support Services.
EC-SORB® VHP is a pyramidal broadband microwave absorber that exhibits high performance and broadband characteristics at both normal incidence and over a wide range of incidence angles. In addition to achieving geometric impedance matching relative to the wavelength, it also scatters the energy reflected from the front. Therefore, it is suitable for installation on the ceiling and walls of an RF anechoic chamber.
Reference: Microwave Factory Official Website（https://ece.co.jp/products/absorber/vhp.html）
EC-SORB® AN is a lightweight and highly flexible sheet-type microwave absorber. It easily adheres to or hangs on the target object for reflection suppression. Furthermore, by selecting a type that matches the lower limit frequency, a reflection coefficient of 1% or less is achieved at normal incidence. It is suitable for applications such as radar antenna nacelles, RF anechoic chambers, antenna and target supports, and antenna pattern improvement.
Reference: Microwave Factory Official Website（https://ece.co.jp/products/absorber/an.html）
This is a pyramidal microwave absorber specifically designed to optimize absorption performance in the millimeter-wave band. Its lightweight and flexible urethane structure, combined with a hook-and-loop fastening system, allows for easy attachment to and detachment from walls and temporary chambers. Due to its high absorption even in high-frequency ranges exceeding 100GHz, it is suitable for applications such as 5G/6G, automotive, satellite communications, as well as next-generation R&D testing.
Reference: Microwave Factory Official Website（https://ece.co.jp/products/absorber/ecp3.html）
This resource introduces recommended microwave absorbers suitable for various applications to assist in selecting appropriate absorbers for the intended use. Please use this information as a reference when selecting products that meet your specific needs for various applications, such as next-generation R&D, high-density packaging, and RCS reduction.
Microwave Factory absorbers should be selected based on the target frequency range, installation method, and whether the main goal is chamber construction, reflection suppression, or millimeter-wave testing.
| 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 |
EC-SORB® VHP is suitable for RF anechoic chamber walls and ceilings where broadband absorption is required. Its pyramidal structure works well when stable reflection control is needed over a wide range of incidence angles.
EC-SORB® AN is recommended when absorbers need to be attached or hung around antennas, targets, or reflective structures. Its flexible sheet-type design is useful for suppressing reflections in areas where permanent chamber installation is not required.
EC-SORB® ECP-3 is suitable for millimeter-wave applications such as 5G/6G, automotive radar, satellite communications, and next-generation R&D testing. Its lightweight structure and easy attachment make it useful for temporary chamber setups.
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.
In addition to providing free product samples, Microwave Factory operates in the United States through its distributor, Cornes Technologies USA. By maintaining local inventory, they ensure rapid delivery across the region.
Furthermore, the partnership offers comprehensive technical support, including measurement services, electromagnetic field simulations, prototype development, field testing, and expert consulting.
Before contacting Microwave Factory or a supplier, prepare the key technical conditions below to help identify the most suitable microwave absorber.
| Company Name | Microwave Factory Co.,Ltd. |
|---|---|
| Headquarters Address | 780 Montague Expwy., Ste. 506, San Jose, CA 95131‐1319, USA |
| Official Website | https://www.mwf.co.jp/en/ |
Microwave Factory provides its services worldwide through a network of distributors. While the official website lists dedicated locations in the United States and South Korea, support may be available in other regions as well. We encourage you to contact us first to discuss how we can assist you in your specific location.
| Company Name | Cornes Technologies USA |
|---|---|
| Headquarters Address | 780 Montague Expwy., Ste. 506, San Jose, CA 95131‐1319, USA |
| Official Website | https://cornestech.com/ |
| Company Name | DYMSTEC |
|---|---|
| Headquarters Address | 388 Dunchon-daero, Jungwon-gu, Seongnam-si, Gyeonggi-do (ZIP Code: 13403) Krantz Techno 1308 |
| Official Website | https://dymstec.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.