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GDR 07, Bordeaux, 23/11/2007 Page 1 Prof. Guy Vandenbosch, Prof. R. Gillard K.U. Leuven, Belgium, IETR Rennes, France Computational Electromagnetics in.

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Presentation on theme: "GDR 07, Bordeaux, 23/11/2007 Page 1 Prof. Guy Vandenbosch, Prof. R. Gillard K.U. Leuven, Belgium, IETR Rennes, France Computational Electromagnetics in."— Presentation transcript:

1 GDR 07, Bordeaux, 23/11/2007 Page 1 Prof. Guy Vandenbosch, Prof. R. Gillard K.U. Leuven, Belgium, IETR Rennes, France Computational Electromagnetics in Europe: Competition versus cooperation

2 GDR 07, Bordeaux, 23/11/2007 Page 2 Contents l The situation l The problem l The ASI questions l The partners l The ACE answers l The future

3 GDR 07, Bordeaux, 23/11/2007 Page 3 The situation l the commercial software vendors: competition l in-house developed codes by (larger) companies – Thales (France), France Telecom (France), Saab Ericsson Space AB (Sweden), … – in many cases mainly for internal use – very interested in standardisation l a rich wealth of in-house made codes at universities and research institutes – sometimes very specialized – in many cases outperforming the commercial codes … – order of magnitude: a few 100 research groups in Europe – enormous investment of time and money – very interested in cooperation

4 GDR 07, Bordeaux, 23/11/2007 Page 4 The problem l the return on this huge investment of time and money is low – example of Greens functions – example of matrix solvers

5 GDR 07, Bordeaux, 23/11/2007 Page 5 The questions – What do we have ? » inventory – What is the quality ? » benchmarking – How can we make it better ? » software standardization and integration

6 GDR 07, Bordeaux, 23/11/2007 Page 6 The partners – universities: 14 » KUL (B), CNRS-LEAT (F), IETR (F), SAPIENZA (I), POLITO (I), UNIFI (I), UNISI (I), UPC (E), UPM (E), UPV (E), CHALMERS (S), EPFL (CH), UOB (UK), ENST (F) – industry: 7 » IDS (I), TICRA (DK), FT(F), TAS (F), IMST (D), FOI (S), SATIMO (F)

7 GDR 07, Bordeaux, 23/11/2007 Page 7 The ACE answers: Inventory l description of the software of the partners l agreed format l open to anyone at the VCE (www.antennasvce.org)

8 GDR 07, Bordeaux, 23/11/2007 Page 8 The ACE answers: Benchmarking l well-defined agreed democratic protocols l implemented through SOFTLAB, a web based application within the VCE l open to anyone, after registration within the ACE community l

9 GDR 07, Bordeaux, 23/11/2007 Page 9 The ACE answers: Benchmarking l first run – elements, open – 14 partners, 18 tools, 36 simulations l second run – finite arrays, blind – 8 structures, 14 partners + 2 vendors, 17 tools, 28 simulations l third run (still going on) – environment – 5 structures

10 GDR 07, Bordeaux, 23/11/2007 Page 10 Benchmarking spherical conformal arraylarge reflect array printed array with tight couplingdipole with lossy cylinder array with waveguide feed

11 GDR 07, Bordeaux, 23/11/2007 Page 11 Where do we stand … Benchmarking Rangestar Ultima World GSM antenna 38 mm x 12 mm

12 GDR 07, Bordeaux, 23/11/2007 Page 12 The ACE answers: Integration l standardization: cooperation with ESA-ESTEC – 6 Data Dictionaries: GFs, currents and meshes, near fields, modes, S-parameters, far fields – EDI routines for currents and meshes, near fields, and far fields » fortran, C, matlab – adopted as standard by TICRA, SATIMO, THALES + ESA-ESTEC, SAAB-ERICSSON l software library: – implementation of EDI routines in software of 15 partners – ca. 10 integration projects

13 GDR 07, Bordeaux, 23/11/2007 Page 13 The ACE answers: Integration l examples of integration projects: – Integration of UPC-UAB fast solvers into the antenna simulation software of UNEX-UPM, KUL, UPV, and EPFL ACE partners – Fast analysis of large finite arrays with a combined multiresolution – fast MoM based techniques – Applications of the DG-FDTD method

14 GDR 07, Bordeaux, 23/11/2007 Page 14 Integration activity between KUL (Belgium) and POLITO (Italy) (2) Z no MR e+5 Z MR condition number of coupling matrix

15 GDR 07, Bordeaux, 23/11/2007 Page 15 EurAAP l Deliverable of ACE l European Association on Antennas and Propagation l Newly formed non-profit organization, based in Brussels

16 GDR 07, Bordeaux, 23/11/2007 Page 16 Proposal for a Software department within EuRAAP l WG 1 on standardization l WG 2 on benchmarking l WG 3 on European Software Library

17 GDR 07, Bordeaux, 23/11/2007 Page 17 WG 1: Standardization l an already committed group – (KUL, IDS, SATIMO, THALES, TICRA) + (ERICSSON + ESA- ESTEC + IT-Link) – open for other partners l concrete plan with goals, time schedule, actions required, … organized around 4 topics – short term evolution: TICRA – standardization: SATIMO – user community: KUL – long-term management: IDS

18 GDR 07, Bordeaux, 23/11/2007 Page 18 WG 1: Standardization l survival budget: 11 KEuro – my personal opinion based on 4 years ACE experience – maintainance of and help desk for EDI routines: » in case VCE is up and running » absolute minimum 1-2 pm / year ( kEuro) – further extension of EDI: » upgrade of existing and selection of other DDs l this is a matter of group discussion in the right forum l my proposal: specific session at EuCAP l budget: 0 KEuro » implementation of EDI routines for these DDs l order of magnitude: 1 – 2 pm per DD (11 – 22 KEuro) l potential income: yes – licensing, support fee, … l academic output: not really

19 GDR 07, Bordeaux, 23/11/2007 Page 19 WG 2: Benchmarking l a protocol on a periodic (yearly) benchmark cycle has been approved within the ASI community – organized around EuCAP – democratic selection process of structures to consider – SOFTLAB is being extended with the necessary features l survival budget: 0 KEuro – further extension of SOFTLAB ? – the organization around EuCAP (and COST ASSIST ?) eliminates most of the possible costs – can be completely organized based on commitment, based on the ACE experience, this is very well feasible l potential income: not really l academic output: yes

20 GDR 07, Bordeaux, 23/11/2007 Page 20 WG 3: Antenna Software Library l within ASI up to now only the direct way has been followed in all integration projects integrated software isolated software EDI in software triangle of effort

21 GDR 07, Bordeaux, 23/11/2007 Page 21 WG 3: Antenna Software Library l distributed library – This is why we do it …this produces the scientific, innovating papers » established, large academic interest l integration projects of ACE: natural drive of the partners » already several papers at EuCAP 2006 and 2007 l survival budget: 0 KEuro – bilateral or multilateral – can be connected with WG 5 of COST ASSIST: no real cost – difference with situation before ACE: integration is much easier with the EDI l potential income: not really l academic output: huge possibilities

22 GDR 07, Bordeaux, 23/11/2007 Page 22 WG 3: Antenna Software Library l downloadable library – Advantages » reduced development time for new Ph.D. students, research groups » reduced dependency of research on commercial tools – More difficult issues » competition for commercial solvers » what do we do for researchers outside Europe l survival budget: ??? – start with current and field viewer, mesher, … l potential income: absolutely – licensing, support fee, … l academic output: huge possibilities

23 GDR 07, Bordeaux, 23/11/2007 Page 23 Bad antenna joke … l Two antennas met on the roof and felt they were matched to each other. So they decided to get married. The wedding ceremony was ok, but the reception was excellent …


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