In 2005, we ran a curated virtual space mission for Georgia Tech’s graduate-level ECE 6390, Satellite Communications. The project was entitled “Martian Wireless Networks” and involved a hypothetical wireless network to link radios across the surface of Mars. The project page archive can be found here and an extended description below. We should acknowledge a big assist from Prof. Paul Steffes for this one as well. [Read more…]
The Killer-App Equation
Enjoy this oddly-prescient essay on which internet companies you should invest in circa 2001. Long before there was a Facebook, a Twitter, or even much of a Google, there was “The Killer App Equation”. Some of the prognostication was off-base, but there’s much that makes me wish I had put my money where my mouth was (or, more precisely, that I had money to put where my mouth was).
HF Isolators for RFID
An isolator in RF engineering is an thin spacer placed between an antenna and an electromagnetically lossy object to improve radiation characteristics. Isolators are commonly used in RFID to overcome losses when RFID tags are placed on metallic objects. This set of notes provides an overview of HF (high-frequency) isolator operation using magnetic circuit theory. Notes for HF Isolators
UHF Isolators for RFID
An isolator in RF engineering is an thin spacer placed between an antenna and an electromagnetically lossy object to improve radiation characteristics. Isolators are commonly used in RFID to overcome losses when RFID tags are placed on metallic objects. This set of notes provides an overview of UHF (Ultra-high-frequency) and microwave isolator operation. Notes on UHF Isolators
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