RF Absorbers: Application Guide

Microwave Factory Co.,Ltd.

Microwave Factory公式HPキャプチャ
Source: Microwave Factory Official Website
(https://www.mwf.co.jp/en/)

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.

Microwave Absorber Lineup
by Microwave Factory

EC-SORB® VHP

EC-SORB® VHP
Source: Microwave Factory Official Website
(https://ece.co.jp/products/absorber/vhp.html)

Suitable Applications
for EC-SORB® VHP

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.

  • Frequency bandwidth: 200 MHz to 110 GHz
  • Absorption performance: 30 dB to 50 dB
  • Size: Approximately 61 cm × 61 cm, Height 11 cm to 114 cm
  • Material: Polyurethane foam + conductive carbon

Reference: Microwave Factory Official Website(https://ece.co.jp/products/absorber/vhp.html)

EC-SORB® AN

EC-SORB AN
Source: Microwave Factory Official Website
(https://ece.co.jp/products/absorber/an.html)

Suitable Applications
for EC-SORB® AN

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.

  • Frequency range: 0.6 GHz to 320 GHz
  • Absorption performance: more than 20dB (typ.)
  • Size: Approximately 61 cm × 61 cm, thickness 0.6 cm to 11.4 cm
  • Material: Polyurethane foam + conductive carbon

Reference: Microwave Factory Official Website(https://ece.co.jp/products/absorber/an.html)

EC-SORB® ECP-3

EC-SORB® ECP-3
Source: Microwave Factory Official Website
(https://ece.co.jp/products/absorber/ecp3.html)

Suitable Applications
for EC-SORB® ECP-3

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.

  • Frequency range: 3 GHz to 320 GHz
  • Absorption performance: Up to 50 dB
  • Size: Approximately 61 cm × 61 cm, height 8.3 cm
  • Material: Urethane foam

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.

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
CHECK
How to Select the Right RF Absorber?

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.

Support Services
by Microwave Factory

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.

Company Information of
Microwave Factory

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/

Distributor Information of
Microwave Factory

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/

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