It may be surprising to many that absorbers of electromagnetic radiation were conceived and investigated as far back as the mid 1930's. The earliest record involved a simple resonant absorber that was designed for application to the back of a 2 GHz antenna in order to improve its front-to-back ratio. Today, some 80 years later, engineers working at VHF, UHF, microwave, and millimeter wave frequencies have access to a wide variety of materials to not only absorb RF energy but also control it with low loss dielectrics and highly conductive shielding materials. Below is a product listing and description of the brand names offered by Emerson & Cuming Microwave Products.
ECCOSORB
Microwave absorbing materials
ECCOSTOCK
Dielectric materials for low loss RF and microwave applications
ECCOSHIELD
Electrically conductive sheets, caulks, adhesives and coatings
ECCOPAD
Smart tag isolators using read on metal technology |