Some distinguished early readers offer enthusiastic reviews for the revised second edition of The Art and Science of Ultrawideband Antennas. “Schantz introduces time domain methods in antenna engineering and microwave techniques, which relate to ultrawideband signals in this expanded second edition. The book is delightfully illuminating, and includes well-researched historical […]
Kai Siwiak
5 posts
The story seems an improbable fiction: a famous Hollywood actress invents a secret technology so far ahead of its time that it takes decades for the full potential of her idea to be recognized. Yet in 1941, actress Hedy Lamarr, collaborating with pianist George Anthiel, invented frequency-hopping, spread-spectrum technology. The […]
In his guest post last week, The Rise and Fall of UWB, Kai Siwiak traced the history of wireless – from the original wideband spark transmissions, to narrowband carrier signals with compact modulations, coming full circle back to spread spectrum and ultra-wideband signals. This history is correct in its description […]
[iframe: src=”http://rcm.amazon.com/e/cm?lt1=_blank&bc1=000000&IS2=1&bg1=FFFFFF&fc1=000000&lc1=0000FF&t=uwbantennacom-20&o=1&p=8&l=as1&m=amazon&f=ifr&md=10FE9736YVPPT7A0FBG2&asins=0470859318″ frameborder=”0″ width=”120px” height=”240px” scrolling=”no”] AetherCzar is grateful to Dr. Kai Siwiak for his comment provoking guest post on ultra-wideband (UWB) technology. In thanks for his contribution, we’d like to draw our readers’ attention to Kai’s excellent introductory UWB technology text (by way of a review originally posted at […]
Guest Post by Kai Siwiak, TimeDerivative, Inc. Unless otherwise indicated, all quotes are from: K. Siwiak and D. McKeown, UWB Radio Technology, (Wiley, 2004) We pause to reflect on the rise and fall of ultra-wideband (UWB) technology, and especially on the recent reorganization of Time Domain Corporation, a UWB pioneer […]