Long before the word curate was ever heard outside of a museum, the GTPG took a very aggressive position in preserving and showcasing student research and design work. From day 1, the group’s website posted team projects, technical reports, research papers, and sundry outputs of academic investigation were posted to the www.propagation.gatech.edu website. It takes a lot of time to develop and maintain this type of research website, but pays big dividends in the professional lives of the students that participate in the courses and research program. Below are several key reasons to curate both research and academic student work. [Read more…]
Test your knowledge of electrostatics with classic night-vision/IR goggles.
Solution: [Read more…]
In lecture TDT06, we explore how to analyzer a transmission line in a circuit with a pre-existing charge. This material is important in the world of high-speed digital electronics, where logic pins that suddenly switch low or high can propagate peculiar transients on signal lines … even if they are only used to load an initially-charged line.
As a side note, my first preparation of this lecture led to the four basic equivalent circuits for time-domain transmission lines, summarized in the figure on the left. These useful equivalents (specifically the general equivalent circuit) had never, to my knowledge, been reported in a textbook or subject paper before. But the GT students found them particularly useful, especially for working the infamous sequencer problems.
Gregory D. Durgin, originally posted on WaveRacer.com
18 June 2001
The world’s first digital radio system was actually the world’s first radio system. This article discusses the physics behind Marconi’s revolutionary communications scheme: coherer-based reception of Morse code.