Click Here to view "AR Field Monitoring Equipment Presented by Jason Galluppi ". To view other AR videos, visit the AR Information Resource Center on their website. … [Read more...]
A Discussion on the FCC SAR Test Guidance Documents for Laptops and Handsets with Multiple Transmitters
The FCC will address exactly what TCBs can review for SAR and simultaneous transmitters in future updates to the TCB exclusion list. David A. Case, Cisco Richfield, Ohio, USA For those involved with product approval for Federal Communications Commission (FCC) certification, the use of the Telecommunication Certified Body (TCB) for approval helps speed the process for product … [Read more...]
Sometimes an EMI Test Failure is not an EMI Test Failure – Lessons Learned in the Real World of Shielded Enclosure Testing
EMI testing in an unusual environment takes more time than testing in a lab environment. Ed Kirchner, Harris Corporation, Melbourne, Floria, USA Jeff Prosser, Rubicom Systems, Melbourne, Floria, USA Grant Lohsen, Georgia Tech Research Institute, Atlanta, Georgia, USA INTRODUCTION A Harris Corporation test team recently performed a shielding effectiveness test on a welded … [Read more...]
Catalog Details Comprehensive Line of EMI/RFI Shielding Products
A 52-page catalog from Tech-Etch details both its custom and standard EMI/RFI product line, including all sizes, shapes, compositions, mounting options, and seal types. This volume includes to-scale technical drawings, compression values, and metal thickness for over 100 BeCu and stainless steel finger stock shielding products. The selection includes low-profile gaskets; soft … [Read more...]
EMI Absorber Sheets Work Below 1 GHz
EMI Absorber Sheets from 3M Electrical Markets Division provide enhanced absorption of electromagnetic interference at frequencies below 1 GHz. The 3M™ EMI AB5000S reduce EMI noise and harmonic coupling in electric equipment, cables, or circuits, including any portion covered by a shielded can. They reduce the EMI susceptibility of sensitive components, including RFID or Hall … [Read more...]
Conductive Tabs Provide Low Impedance
Conductive grounding from Chomerics provide EMI protection by establishing low impedance ground paths between electrically conductive elements in a chassis or component. These stabs forestall interference from the surface currents that “excite” metal components and thus create “phantom” fields. The tabs can be used to provide the required grounding paths economically as … [Read more...]
Sheet Solutions Are Designed With High Permeability and High Temperature Resistance
The WX Series from ARC Technologies provides superior EMI absorption by combining proprietary, high-performance magnetic materials into a flexible, resilient elastomer. Precisely blending refined fillers in exacting ratios with polymer substrate materials creates a thin, flexible EMI-absorbing sheet that will attenuate from 100 MHz to 3 GHz. Surface resistance is >3 MΩ. WS … [Read more...]
Nickel Acrylic Coatings Provide Cost Effective EMI Shielding
Nickel acrylic paints in the ECP 500 Series are now available from TBA Electro Conductive Products (ECP). Surface coatings offer the simplest and most cost effective solution for EMI problems in a wide range of applications. They can be applied with minimal training and equipment requirements using conventional paint spray techniques. ECP 502/552 nickel acrylic coatings deliver … [Read more...]
Conductive Materials Available in a Wide Variety of Formulations
E-Fill™ from Sulzer Metco is an aluminum compatible nickel graphite conductive filler that offers advanced corrosion resistance and stability in harsh environments. It is especially well suited to applications involving coated flanges. The angular shape of E-Fill™ coupled with a proprietary hard nickel coating gives gaskets the necessary “bite” needed to ensure optimal … [Read more...]
EMI Suppressant Tubing Guards Against Both Conducted and Radiated Interference
EMI suppressant tubing from CAPCON, Inc. provides a simple, low cost efficient means for suppressing unwanted EMI. This product can be slipped over standard wires and cables (insulated or uninsulated) and suppresses both conducted and radiated interference. Completely flexible and lightweight, this tubing can be used in temperatures from -55 degrees to +250 degrees C without … [Read more...]
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