BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:Convex Optimization for Analysis of Small Antennas
DTSTART:20140925T140000
DTSTAMP:20260609T094529Z
UID:35462c642f7600ebaa172ae076d9bf8fb12f86ccc6362a54b7cfedce
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Mats Gustafsson\, Lund University\, Sweden\nDesign of sm
 all antennas is challenging as the Q-factor\, efficiency\, and radiation r
 esistance must be controlled simultaneously. In this presentation\, it is 
 shown that convex optimization together with closed form expressions of th
 e stored electromagnetic energies provide a general method for analyzing m
 any fundamental antenna problems. The solution to the convex optimization 
 problem determines optimal currents\, offers insight for antenna design\, 
 and presents performance bounds for antennas.\nWe present optimization for
 mulations for the maximal gain Q-factor quotient\, minimal Q for superdire
 ctivity\, and minimal Q for given far field. The effects of antennas embed
 ded in metallic structures and effects of losses are also discussed. Resul
 ts are shown for various antenna geometries and compared to state of the a
 rt designs. It is also shown that many antennas perform almost optimally. 
 A tutorial description of a method of moment implementation together with 
 a Matlab package for convex optimization to determine optimal current dist
 ributions on arbitrarily shaped antennas is also presented.\nBio: Mats Gus
 tafsson received the M.Sc. degree in Engineering Physics in 1994\, the Ph.
 D. degree in Electromagnetic Theory in 2000\, was appointed Docent in 2005
 \, and Professor of Electromagnetic Theory 2011\, all from Lund University
 \, Sweden.\nHe co-founded the company Phase holographic imaging AB in 2004
 . His research interests are in scattering and antenna theory and inverse 
 scattering and imaging with applications in microwave tomography and digit
 al holography. He has written over 60 peer reviewed journal papers and ove
 r 75 conference papers.\nProf. Gustafsson received the best antenna poster
  prize at EuCAP 2007 and the IEEE Schelkunoff Transactions Prize Paper Awa
 rd 2010.
LOCATION:ELE 111 http://plan.epfl.ch/?lang=en&room=ele+111
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR