What is Millimeter Wave Absorber : Top Manufacturers

A millimeter wave absorber is a specialized material designed to absorb electromagnetic energy in the millimeter wave frequency range, reducing reflections and unwanted signal interference. These absorbers are widely used in antenna testing, radar systems, 5G communications, aerospace, defense, and electromagnetic compatibility applications.

Introduction

The millimeter wave frequency range lies from 30 GHz to 300 GHz in the electromagnetic spectrum. Absorbers are used in RF modules, anechoic chambers, and enclosures. High-frequency absorbers are designed to attenuate electromagnetic interference (EMI) by converting RF energy into heat.

Absorbers are available in standard and custom configurations, including foams, coatings, and two-part resins. The tip of the absorber is designed to reduce creep and deliver stable performance. Most absorbers are stable against chemicals and offer a longer lifespan. They often use materials that emit harmless gases when burned.

Millimeter Wave Absorber Manufacturers or Vendors

The following table lists Millimeter Wave Absorber Manufacturers or vendors:

Manufacturers	Description
Emerson & Cuming Microwave Products, a unit of Laird Technologies	• ECCOSORB ® absorber product family supports frequencies from 100 MHz to 100 GHz.
TDK RF Solutions	• IS Absorber Series • It uses a polyethylene foam base. • It utilizes the ohmic loss of carbon.
Microwave Vision Group (MVG)	• AEC-MM Series • Frequency of operation: 12 GHz to 95 GHz • Excellent reflectivity at normal incidence up to 55 dB. • It is used in mmwave chambers and in RCS testing.
Cuming Microwave Corporation, MA 02322 USA	• C-RAM MILLIMETER WAVE • Provides excellent absorption at frequencies ranging from 18 GHz to 110 GHz. • These absorbers use plastic foam sheet as well as elastomeric-based materials. • Website: https://cumingmicrowave.com/
MAST Technologies, San Diego, CA 92121	RF absorbers in different materials up to 40 GHz frequency are available.

Summary

A millimeter wave absorber reduces signal reflections and electromagnetic interference at high frequencies. Manufacturers develop absorber materials for radar, antenna testing, 5G networks, aerospace systems, and EMC applications.