Nesting isn’t just for Birds, Nested Enclosures Help to Determine Shielding Effectiveness!

The determination of the Shielding Effectiveness (SE) of a material at high frequencies/small wavelengths can give large variations in results based on the testing method employed.  One of the methods used to get more consistent results is to use a "nested" testing chamber, meaning a testing chamber is divided by a shielded wall across the middle of the chamber, with a window/hole in it.  On the receiving side, there is no mode stirring and the antenna is set up...

What’s in Your Wallet? Hopefully, Some Shielding Material!

In today's world, having credit cards or electronic ID cards in your wallet isn't secure enough protection for the personal information they carry.  You must have some sort of additional security for them there in your pocket.  When I grew up, the best security for wallets was what over the road truckers or motorcyclists had, a chain that connected their wallet to their belt or the pants that they were wearing, stopping physical thievery and that was good enough. Today's thief...