IEEE Antenna & Propagation; Microwave Theory &
Techniques; and Aerospace & Electronic Systems and Electron Devices
Societies Lecture Series
Dr. Nathan Cohen, CEO of Fractal Antenna Systems Inc will give a seminar
on fractal antennas and RF cloaking with live demo.
Date:
Thursday, October 25, 2012 Time: 6:00 PM
Location:
MIT Lincoln Laboratory A-Café
Refreshments
served at 5:30pm
TITLE:
You Can Do That? Twenty Five Years of Fractal Antennas
Abstract: This
year marks the 25th year of the creation and recognition of fractal antennas as
a new and worthwhile class of antenna design. Despite this longevity, published
summaries remain poor in accuracy and detail, although fractal antenna
advantages are unrealized with other design approaches. This talk presents a
variety of ways in which fractal antenna technology (including fractal
resonators and fractal metamaterials) has been used to produce: smaller,
multiband antennas without components; wideband invariant antennas with huge
bandwidths; sparse array that are frequency invariant and low in sidelobes;
lower profile antennas with better performance on metal; extremely low RCS
radar targets; fractal metasurface wideband radiators; wideband invisibility
cloaks; rapid convergence design algorithms; and so on. I will also debunk
claims about electrically small antennas; 'ecumenical' antenna performance; and
so on, which have prevented more rapid progress in fractal antenna acceptance
in the United States. A live demonstration will also be shown.
Bio: Nathan Cohen is the CEO of Fractal Antenna Systems, Inc. of
Waltham, MA. He is the founder of fractal antenna technology and holds over 2
dozen patents on them. Previously he was an academic radio astronomer and
physicist who retired as a professor from Boston University in 2002. He holds a
Ph.D. from Cornell University and conducted his thesis work at Haystack
observatory on Very Long Baseline Interferometry (arrays) and gravitational
lenses. He has authored over 80 papers and 3 books.
For
more information, contact Antennas & Propagation chair, Raoul O. Ouedraogo,
raoul.ouedraogo@ll.mit.edu
For directions please see: http://www.ll.mit.edu/about/map.html
