Stockholm 6:th of Dec 2011.
KTH regulations: This is a personal web page created by Lars Jonsson. More information. You can contact me at
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Welcome to Lars Jonsson's home page at KTH
I am an Associate Professor since 2006 at
Electromagnetic Engineering (ETK) at Royal Institute of Technology (KTH)
which is located in the city of
Stockholm, Sweden. We are a group of people working in electromagnetic theory, antenna theory, scattering. Our interests includes electromagnetic material properties, nonlinear effects, communication channels, wide band antenna elements, phased arrays, breakdown processes, nanocomposites.
Currently I supervise a PhD student, Alireza Motevasselian, who is working on antennas and scattering from periodic surfaces. I and Associate Professor Hans Edin have a visiting postdoctorial fellow Venkatesulu Bandapalle with an interest in electromagnetic breakdown processes. The group also have a two year postdoctorial fellow Andres Alayon Glazunov with interest in antenna/channel couplings. My fellow co-researcher is Associate Professor Martin Norgren and his PhD student Mariana Dalarsson. Anders Ellgardt is a researcher at the department with an interest in phased array antennas, communication and wide band antenna elements. Peter Fuks and Gunnar Larsson is also working with antennas, with teaching and our lab. Saffan Ström is our professor emeritus. Professor Sailing He is another fellow co-research in electromagnetics with a group of students.
Research
For a list of published papers and more information see my
research page.
Since May 2009 we are participating in an antenna research project within the
CHASE network. Chase
is a VINN Excellence center around antenna systems. We are one of several
groups working in the
antenna system simulator project.
We, Anders Ellgards, Alireza Motevasselian and I are work with antenna arrays and edge effects in this project. One of our recent studies together with
Patrik Persson and a visitor Waqquas Bukkhsh, was a study on a communication antenna designed for satellite use.
Recently we have started to study how scattering limitations could be related
to antenna applications in the telecommunication sphere. We got our
proposal
"
Access technologies: multiple access, multiple users, multiple distributed antenna system" accepted. It is a joint
work with of different groups at KTH and LTH together with three Chinese universities. This project will run over three
years starting the summer of 2008. Here we have had some recent progress
on physical limits of array antennas.
Since 2010 we participates in a new NFFP project on an AESA AEW Aperture solution.
This is a project together with SAAB Microwave System around antenna
elements possible for airborn antennas.
Teaching
During the autumn 2011 I will teach the circuit theory courses EI1102 and part 1 of EI1110.
During Spring 2012 I will teach the part 2 of EI1110
and EI1120.
News/Info:
- Submitted paper: Efficient whole-body SAR assessments by means of
surface scan measurements, with D. Colombi, B. Thors. Sept. 2011
- Accepted conference contribution at ISAP 2011 Resonance shift due to edge effects in finite-by-infinite monopole arrays with A. Ellgardt. Aug 2011.
- Sergio Amaya Maldonado finalized his master thesis work "Efficient analysis of 2D antenna arrays using the ASM-MBF method", June 2011. This project was together with A. Ellgardt.
- Accepted journal articles: Physical Bounds and Optimal Currents on Antennas together with M. Gustafsson and M. Cismasu and Partially Transparent Jaumann Like Absorber Applied to a Curved Structure together with A. Motevasselian, Nov 2011.
- The journal article: Dynamics of breakup of multiple vortices in Gross-Pitaevskii equations of superfluids together with Yu. N. Ovchinnikov, I.M. Sigal, F. Ting, has been published in Journal of Mathematical Physics, 2011. It has also been selected to appear in the October 2011 issue of Virtual Journal of Atomic Quantum Fluids vol 3(10).
- The conference contributions Observations on the Resistive Losses and the Electrostatic Field Distribution in an Insulating Nanocomposite
with B. Venkatesulu, M. Norgren and H. Edin and
A comparison of a finite and an infinite antenna array with cylindrical dielectric resonator elements with A. Motevasselian and A. Ellgardt are accepted to URSI GASS, Istanbul, April 2011.
- B. Venkatesulu, with a PhD in nanoparticles and electromagntic erosion is making a postdoc here under a India4EU grant, a joint collaboration is ongoing. Oct. 2010.
- The Previous ETK seminars page. Here is the new semiar page. Dec 2011.