At the 2018 electronica exhibition in Munich, John Hendricks, product marketing manager for Rogers Corporation, discussed 5G materials including demands and trends. Pete Starkey: John, it’s great to see you again. Thank you for sparing the time to join us. It’s been a very active show, and everybody I’ve spoken to has been very complimentary about it. One of the main talking points this week has been 5G. From your point of view, as a specialist supplier of materials, where are we going with 5G, and what are the implications of 5G for your company? John Hendricks: Rogers is a company that makes printed circuit board materials, but most specifically, high-frequency PCB materials. We tend to approach things from the high-frequency point of view. If you look back at previous generations of telecommunications systems—2G, 3G, 4G—there were many technological developments along that path and evolution. In terms of high-frequency PCB materials, not much has changed. A power amplifier was a power amplifier, and an antenna was an antenna. The materials used in 2G also tended to get used in 3G and 4G. Also, the frequencies were very similar. However, 5G is different from ...