Scientists Use Electron 'Ink'
to Write on Graphene 'Paper'

This new technology could be a relatively simple and inexpensive method of creating permanent, high density records storage. Using an electron beam, the planar hexagonal carbon matrix of graphene (2-dimensional by definition) is disturbed and replaced by a 3D clump of carbon atoms that provide a discernable relief easily recognized as printing under a microscope. While the print could be similar to a normal printed page, it might be more useful to encode the information in some other form that will require decryption to read. Magnetic and optical digital storage media is notoriously non-permanent due to cold flow and migration of localized storage domains. This process eliminates that problem.

Posted June 2013

Werbel Microwave power dividers, couplers - RF Cafe Website

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived...