AFR000-03 RF Absorber Foam

The AFR000-03 RF absorber foam is a lossy material designed to reduce internal RF reflections inside shielded enclosures and test environments. It helps improve measurement accuracy by minimizing standing waves and unwanted signal bounce.

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Description

AFR000-03 RF Absorber Foam for Shielded Test Environments

The AFR000-03 RF Absorber Foam helps reduce unwanted RF reflections inside shielded enclosures and controlled test environments. Because internal reflections can affect measurement accuracy, this absorber plays an important role in creating stable and repeatable RF conditions. As a result, engineers can focus on true device performance instead of test interference.

In many RF setups, reflected signals cause standing waves and signal bounce. Therefore, controlling these reflections is essential for reliable testing. This absorber foam solves that problem by absorbing excess RF energy rather than reflecting it back into the enclosure.


Lossy Material Designed to Control Reflections

The absorber foam uses a lightweight, non-conductive material that absorbs RF energy and converts it into heat. Because the material does not conduct electricity, it performs well in RF-sensitive environments where metal surfaces could cause interference.

In addition, the foam supports consistent performance across common test frequencies. As a result, it works well in both development labs and production test systems.


Flexible Installation Inside Shielded Enclosures

Engineers can install the foam on enclosure walls, doors, or internal panels using simple attachment methods. For example, adhesive backing or mechanical fasteners work well for most setups. In many cases, teams can also trim the foam to fit specific layouts.

Because of this flexibility, engineers can target problem areas without redesigning the enclosure. This saves time while improving overall RF performance.


Common Applications

This RF absorber material is commonly used in:

  • RF shield boxes

  • Shielded rack enclosures

  • EMI and EMC test systems

  • Wireless validation labs

  • Production and manufacturing test setups

In each case, the absorber helps improve signal stability and test repeatability.

Additional information

Dimensions 24 × 24 × 1 in

Applications

AFR0000-03 Applications

  • Antenna Pattern Performance
  • Sidelobe/backlobe reduction
  • Resonant Cavity Attenuation
  • EMI Reduction
  • Rx/Tx Antenna Isolation
  • Radar Cross Section Reduction
  • Dual use air filter/EMI absorber

Method of Application

The primary method of application for Lossy Foam Absorbers is utilizing a Pressure Sensitive Adhesive (PSA) backing. CTS proudly uses 3M transfer tapes on it’s Lossy Foam Absorbers. Contact CTS technical representatives for a datasheet on the PSA. Other liquid and paste adhesive may be recommended. Contact a CTS technical representative for more information.

Performance

AFR0000-03 Electrical Performance

This performance plot illustrates the insertion loss performance of this material. Insertion loss is measured in a transmission tunnel, for more information on the transmission tunnel test set-up, please refer to Tech Bulletin 103. Additional electrical test data may be available upon request.