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Efficient Modeling and Optimization Techniques for Solving Computationally Expensive Engineering Design Problems

2015/17/B/ST6/01857

Keywords

Descriptors

  • ST6_12: Obliczenia naukowe, narzędzia modelowania i symulacji
  • ST7_3: Inżynieria symulacji i modelowania
  • ST1_18: Zastosowania matematyki w innych naukach

Panel

ST6 – Computer science and informatics: informatics and information systems, computer science, scientific computing, intelligent systems

Host institution

Politechnika Gdańska, Wydział Elektroniki, Telekomunikacji i Informatyki

Voivodeship: pomorskie

Other projects carried out by the institution »

Principal investigator (from the host institution)

prof. Sławomir Marcin Kozieł

Number of co-investigators in the project: 6

Call

OPUS 9 – announced on 2015-03-16

Amount awarded
892 000 PLN
Project start date
2016-07-13
Project end date
2020-06-12
Project duration
47 months (the same as in the proposal)
Project status
Project settled

Project description

Download the project description in a pdf file

Note — project descriptions were prepared by the authors of the applications themselves and placed in the system in an unchanged form.

Equipment purchased [PL]

  1. Zestaw komputerowy (2 pcs). Cost: 7 000 PLN

Information in the final report

Publication in academic press/journals (50)

  1. Enhanced uniform data sampling for constrained data-driven modelling of antenna input characteristics

    Authors:
    S. Koziel, A.T. Sigurdsson, A. Pietrenko-Dabrowska, S. Szczepanski
    Academic press:
    International Journal of Numerical Modeling (year: 2019, volume: 32, pages: 46033), Publisher: Wiley
    Status:
    Published
    DOI:
    10.1002/jnm.2584 – link to the publication

  2. Low-cost and reliable geometry scaling of compact microstrip couplers with respect to operating frequency, power split ratio and dielectric substrate parameters

    Authors:
    S. Koziel, A. Bekasiewicz
    Academic press:
    IET Microwaves, Antennas & Propagation (year: 2018, volume: 12, pages: 1508-1513), Publisher: IET
    Status:
    Published
    DOI:
    10.1049/iet-map.2017.1166 – link to the publication

  3. A design framework for rigorous constrained EM-driven optimization of miniaturized antennas with circular polarization

    Authors:
    A. Bekasiewicz, S. Koziel
    Academic press:
    Metrology and Measurement Systems (year: 2019, volume: 26, pages: 41-52), Publisher: Polska Akademia Nauk
    Status:
    Published
    DOI:
    10.24425/mms.2019.126331 – link to the publication

  4. Implicit space mapping for variable-fidelity EM-driven design of compact circuits

    Authors:
    S. Koziel, A. Bekasiewicz
    Academic press:
    IEEE Microwave and Wireless Components Letters (year: 2018, volume: 28, pages: 275-277), Publisher: IEEE
    Status:
    Published
    DOI:
    10.1109/LMWC.2018.2811253 – link to the publication

  5. Point-by-point Pareto front exploration and adjoint sensitivities for rapid multi-objective optimization of compact impedance matching transformers

    Authors:
    S. Koziel, A. Bekasiewicz
    Academic press:
    International Journal of Numerical Modelling: Electronic Networks, Devices and Fields (year: 2018, volume: 31, pages: 46029), Publisher: Wiley
    Status:
    Published
    DOI:
    10.1002/jnm.2350 – link to the publication

  6. Miniaturized dual-band branch-line coupler with enhanced bandwidth

    Authors:
    A. Bekasiewicz
    Academic press:
    Microwave and Optical Technology Letters (year: 2019, volume: 61, pages: 1441-1444), Publisher: Wiley
    Status:
    Published
    DOI:
    10.1002/mop.31849 – link to the publication

  7. Fast surrogate-assisted frequency scaling ofplanar antennas with circular polarisation

    Authors:
    S. Koziel, A. Bekasiewicz
    Academic press:
    IET Microwaves, Antennas & Propagation (year: 2019, volume: 13, pages: 602-607), Publisher: IET
    Status:
    Published
    DOI:
    10.1049/iet-map.2018.5483 – link to the publication

  8. Variable-fidelity simulation models and sparse gradient updates for cost-efficient optimization of compact antenna input characteristics

    Authors:
    S. Koziel, A. Pietrenko-Dabrowska
    Academic press:
    Sensors (year: 2019, volume: 19, pages: 46034), Publisher: MDPI
    Status:
    Published
    DOI:
    10.3390/s19081806 – link to the publication

  9. Numerically efficient algorithm for compact microwave device optimization with flexible sensitivity updating scheme

    Authors:
    A. Pietrenko-Dabrowska, S. Koziel
    Academic press:
    International Journal of RF and Microwawe CAE (year: 2019, volume: 29, pages: 46029), Publisher: Wiley
    Status:
    Published
    DOI:
    10.1002/mmce.21714 – link to the publication

  10. Reduced-cost electromagnetic-driven optimization of antenna structures by means of trust-region gradient-search with sparse Jacobian updates

    Authors:
    S. Koziel, A. Pietrenko-Dabrowska
    Academic press:
    IET Microwaves Antennas and Propagation (year: 2019, volume: 13, pages: 1646-1652), Publisher: IET
    Status:
    Published
    DOI:
    10.1049/iet-map.2018.5879 – link to the publication

  11. Domain segmentation for low-cost surrogate-assisted multi-objective design optimization of antennas

    Authors:
    S. Koziel, A. Bekasiewicz
    Academic press:
    IET Microwaves, Antennas & Propagation (year: 2018, volume: 12, pages: 1728-1735), Publisher: IET
    Status:
    Published
    DOI:
    10.1049/iet-map.2017.0635 – link to the publication

  12. Rapid multi-objective design of integrated on-chip inductors by means of Pareto front exploration and design extrapolation

    Authors:
    S. Koziel, P. Kurgan
    Academic press:
    Journal of Electromagnetic Waves and Applications (year: 2019, volume: 33, pages: 1416-1426), Publisher: Taylor & Francis
    Status:
    Published
    DOI:
    10.1080/09205071.2019.1610504 – link to the publication

  13. A wideband corrugated ridged horn antenna width enhanced gain and stable phase center for X- and Ku-band applications

    Authors:
    S. Manshari, S. Koziel, L. Leifsson
    Academic press:
    IEEE Antennas and Wireless Propagation Letters (year: 2019, volume: 18, pages: 1031-1035), Publisher: IEEE
    Status:
    Published
    DOI:
    10.1109/LAWP.2019.2908290 – link to the publication

  14. EM-driven constrained miniaturization of antennas using adaptive in-band reflection acceptance threshold

    Authors:
    D.O. Johanesson, S. Koziel, A. Bekasiewicz
    Academic press:
    International Journal of Numerical Modelling: Electronic Networks, Devices and Fields (year: 2019, volume: 32, pages: 46031), Publisher: Wiley
    Status:
    Published
    DOI:
    10.1002/jnm.2513 – link to the publication

  15. Miniaturization of wideband antennas by means of feed line topology alterations

    Authors:
    M.A. Haq, S. Koziel
    Academic press:
    IET Microwaves, Antennas and Propagation (year: 2018, volume: 12, pages: 2128-2134), Publisher: IET
    Status:
    Published
    DOI:
    10.1049/iet-map.2018.5197 – link to the publication

  16. A bisection-based heuristic for rapid EM-driven multi-objective design of compact impedance transformers

    Authors:
    A. Bekasiewicz, S. Koziel
    Academic press:
    International Journal of Numerical Modelling: Electronic Networks, Devices and Fields (year: 2019, volume: 32, pages: 46029), Publisher: Wiley
    Status:
    Published
    DOI:
    10.1002/jnm.2523 – link to the publication

  17. On reduced-cost design-oriented constrained surrogate modeling of antenna structures

    Authors:
    S. Koziel, A. Bekasiewicz
    Academic press:
    IEEE Antennas and Wireless Propagation Letters (year: 2017, volume: 16, pages: 1618-1621), Publisher: IEEE
    Status:
    Published
    DOI:
    10.1109/LAWP.2017.2654304 – link to the publication

  18. Reliable assessment of topological modifications in UWB antennas by means of multi-objective optimization

    Authors:
    A. Bekasiewicz and S. Koziel
    Academic press:
    Microwave and Optical Technology Letters (year: 2017, volume: 59, pages: 1493-1499), Publisher: Wiley
    Status:
    Published
    DOI:
    10.1002/mop.30577 – link to the publication

  19. Expedited EM-driven generation of Paretooptimal trade-off curves for variable-turn onchip inductors

    Authors:
    S. Koziel, P. Kurgan
    Academic press:
    IET Microwaves, Antennas and Propagation (year: 2018, volume: 12, pages: 1205-1210), Publisher: IET
    Status:
    Published
    DOI:
    10.1049/iet-map.2017.0298 – link to the publication

  20. Ground plane modifications for design of miniaturised UWB antennas

    Authors:
    S. Koziel, M.A. ul Haq
    Academic press:
    IET Microwaves, Antennas and Propagation (year: 2018, volume: 12, pages: 1360-1366), Publisher: IET
    Status:
    Published
    DOI:
    10.1049/iet-map.2017.1111 – link to the publication

  21. Feasible space boundary search for improved optimisation-based miniaturisation of antenna structures

    Authors:
    D.O. Johanesson, S. Koziel
    Academic press:
    IET Microwaves, Antennas and Propagation (year: 2018, volume: 12, pages: 1273-1278), Publisher: IET
    Status:
    Published
    DOI:
    10.1049/iet-map.2017.0644 – link to the publication

  22. Expedited design closure of antennas by means of trust-region-based adaptive response scaling

    Authors:
    S. Koziel, S.D. Unnsteinsson
    Academic press:
    IEEE Antennas and Wireless Propagation Letters (year: 2018, volume: 17, pages: 1099-1103), Publisher: IEEE
    Status:
    Published
    DOI:
    10.1109/lawp.2018.2834145 – link to the publication

  23. Generalized Pareto ranking bisection for computationally feasible multi-objective antenna optimization

    Authors:
    S.D. Unnsteinsson, S. Koziel
    Academic press:
    Int. J. RF and Microwave CAE (year: 2018, volume: 28, pages: e21406), Publisher: Wiley
    Status:
    Published
    DOI:
    10.1002/mmce.21406 – link to the publication

  24. Rapid design closure of linear microstrip antenna array apertures using response features

    Authors:
    S. Koziel and S. Ogurtsov
    Academic press:
    IEEE Antennas and Wireless Propagation Letters (year: 2018, volume: 17, pages: 645-648), Publisher: IEEE
    Status:
    Published
    DOI:
    10.1109/lawp.2018.2808929 – link to the publication

  25. Performance-driven modeling of compact couplers in restricted domains

    Authors:
    S. Koziel, A.T. Sigurdsson
    Academic press:
    Int. J. RF and Microwave CAE (year: 2018, volume: 28, pages: e21296), Publisher: Wiley
    Status:
    Published
    DOI:
    10.1002/mmce.21296 – link to the publication

  26. Selection of circuit geometry for miniaturized microwave components based on concurrent optimization of performance and layout area

    Authors:
    P. Kurgan, S. Koziel
    Academic press:
    AEU - International Journal of Electronics and Communications (year: 2019, volume: 108, pages: 287-294), Publisher: Elsevier
    Status:
    Published
    DOI:
    10.1016/j.aeue.2019.06.009 – link to the publication

  27. Triangulation-based constrained surrogate modeling of antennas

    Authors:
    S. Koziel, A.T. Sigurdsson
    Academic press:
    IEEE Transactions on Antennas and Propagation (year: 2018, volume: 66, pages: 4170-4179), Publisher: IEEE
    Status:
    Published
    DOI:
    10.1109/tap.2018.2839759 – link to the publication

  28. Performance-based nested surrogate modeling of antenna input characteristics

    Authors:
    S. Koziel, A. Pietrenko-Dabrowska
    Academic press:
    IEEE Transactions on Antennas and Propagation (year: 2019, volume: 67, pages: 2904-2912), Publisher: IEEE
    Status:
    Published
    DOI:
    10.1109/TAP.2019.2896761 – link to the publication

  29. Improved trust-region gradient-search algorithm for accelerated optimization of wideband antenna input characteristics

    Authors:
    S. Koziel
    Academic press:
    International Journal of RF and Microwave CAE (year: 2018, volume: 29, pages: 46029), Publisher: Wiley
    Status:
    Published
    DOI:
    10.1002/mmce.21576 – link to the publication

  30. Inverse and forward surrogate models for expedited design optimization of unequal-power-split patch couplers

    Authors:
    S. Koziel, A. Bekasiewicz
    Academic press:
    Metrology and Measurement Systems (year: 2019, volume: 26, pages: 463-473), Publisher: Polska Akademia Nauk
    Status:
    Published
    DOI:
    10.24425/mms.2019.129578 – link to the publication

  31. Miniaturization of wideband antennas by means of feed line topology alterations

    Authors:
    M.A. Haq, S. Koziel, Q.S. Cheng
    Academic press:
    IET Microwaves Antennas and Propagation (year: 2018, volume: 12, pages: 2128-2135), Publisher: IET
    Status:
    Published
    DOI:
    10.1049/iet-map.2018.5197 – link to the publication

  32. Bandwidth-size design trade-offs for compact spline-parameterized patch couplers by means of EM-driven multi-objective optimization

    Authors:
    S. Koziel, A. Bekasiewicz
    Academic press:
    IET Microwaves, Antennas & Propagation (year: 2019, volume: 13, pages: 1921-1927), Publisher: IET
    Status:
    Published
    DOI:
    10.1049/iet-map.2018.5960 – link to the publication

  33. Sequential approximate optimization for statistical analysis and yield optimization of circularly polarized antennas

    Authors:
    S. Koziel, A. Bekasiewicz
    Academic press:
    IET Microwaves, Antennas and Propagation (year: 2018, volume: 12, pages: 2060-2064), Publisher: IET
    Status:
    Published
    DOI:
    10.1049/iet-map.2018.5343 – link to the publication

  34. Response features for low-cost statistical analysis and tolerance-aware design of antennas

    Authors:
    S. Koziel, A. Bekasiewicz, and Q.S. Cheng
    Academic press:
    International Journal of Numerical Modelling: Electronic Networks, Devices and Fields (year: 2018, volume: 31, pages: e2297), Publisher: Wiley
    Status:
    Published
    DOI:
    10.1002/jnm.2297 – link to the publication

  35. Rapid design closure of microwave components by means of feature-based optimization and adjoint sensitivities

    Authors:
    S. Koziel and A. Bekasiewicz
    Academic press:
    International Journal of RF and Microwave Computer-Aided Engineering (year: 2018, volume: 28, pages: e21182), Publisher: Wiley
    Status:
    Published
    DOI:
    10.1002/mmce.21182 – link to the publication

  36. Fast re-design and geometry scaling of multi-band antennas using inverse surrogate modeling techniques

    Authors:
    S. Koziel and A. Bekasiewicz
    Academic press:
    International Journal of Numerical Modelling: Electronic Networks, Devices and Fields (year: 2018, volume: 31, pages: e2287), Publisher: Wiley
    Status:
    Published
    DOI:
    10.1002/jnm.2287 – link to the publication

  37. Comprehensive comparison of compact UWB antenna performance by means of multi-objective optimization

    Authors:
    S. Koziel, A. Bekasiewicz
    Academic press:
    IEEE Transactions on Antennas and Propagation (year: 2017, volume: 65, pages: 3427-3436), Publisher: IEEE
    Status:
    Published
    DOI:
    10.1109/TAP.2017.2700044 – link to the publication

  38. Reliable low-cost surrogate modeling and design optimization of antennas using implicit space mapping with substrate segmentation

    Authors:
    S. Koziel, A. Bekasiewicz
    Academic press:
    IET Microwaves, Antennas & Propagation (year: 2017, volume: 11, pages: 2066-2070), Publisher: IET
    Status:
    Published
    DOI:
    10.1049/iet-map.2017.0382 – link to the publication

  39. Expedite EM-driven generation of Pareto optimal trade-off curves for variable-turn on-chip inductors

    Authors:
    S. Koziel and P. Kurgan
    Academic press:
    IET Microwaves Antennas and Propagation (year: 2018, volume: 12, pages: 1205-1210), Publisher: IET
    Status:
    Published
    DOI:
    10.1049/iet-map.2017.0298 – link to the publication

  40. Uniform sampling in constrained domains for low-cost surrogate modeling of antenna input characteristics

    Authors:
    S. Koziel, A.T. Sigurdsson, and S. Szczepanski
    Academic press:
    IEEE Antennas and Wireless Propagation Letters (year: 2018, volume: 17, pages: 164-167), Publisher: IEEE
    Status:
    Published
    DOI:
    10.1109/LAWP.2017.2778712 – link to the publication

  41. Multi-objective design optimization of antennas for reflection, size and gain variability using kriging surrogates and generalized domain segmentation

    Authors:
    S. Koziel, A. Bekasiewicz, and S. Szczepanski
    Academic press:
    International Journal of RF and Microwave Computer-Aided Engineering (year: 2018, volume: 28, pages: e21253), Publisher: Wiley
    Status:
    Published
    DOI:
    10.1002/mmce.21253 – link to the publication

  42. Recent advances in rapid multi-objective optimization of expensive simulation models in microwave and antenna engineering by Pareto front exploration

    Authors:
    S. Koziel and A. Bekasiewicz
    Academic press:
    International Journal of RF and Microwave Computer-Aided Engineering (year: 2018, volume: 28, pages: e21190), Publisher: Wiley
    Status:
    Published
    DOI:
    10.1002/mmce.21190 – link to the publication

  43. Model correction and optimization framework for expedited EM-driven surrogate-assisted design of compact antennas

    Authors:
    A. Bekasiewicz
    Academic press:
    IEEE Antennas and Wireless Propagation Letters (year: 2018, volume: 17, pages: 468-471), Publisher: IEEE
    Status:
    Published
    DOI:
    10.1109/LAWP.2018.2795532 – link to the publication

  44. Expedited antenna optimization with numerical derivatives and gradient change tracking

    Authors:
    A. Pietrenko-Dabrowska, S. Koziel
    Academic press:
    Engineering Computations (year: 2020, volume: 37, pages: 1179-1193), Publisher: Emerald Publishing
    Status:
    Published
    DOI:
    10.1108/EC-04-2019-0155 – link to the publication

  45. Expedited optimization of antenna input characteristics with adaptive Broyden updates

    Authors:
    S. Koziel, A. Pietrenko-Dabrowska
    Academic press:
    Engineering Computations (year: 2020, volume: 37, pages: 815-862), Publisher: Emerald Publishing
    Status:
    Published
    DOI:
    10.1108/EC-01-2019-0023 – link to the publication

  46. Reduced-cost surrogate modeling of compact microwave components by two-level kriging interpolation

    Authors:
    S. Koziel, A. Pietrenko-Dabrowska
    Academic press:
    Engineering Optimization (year: 2019, volume: 52, pages: 524-544), Publisher: Taylor & Francis
    Status:
    Published
    DOI:
    10.1080/0305215X.2019.1630399 – link to the publication

  47. Efficient gradient-based algorithm with numerical derivatives for expedited optimization of multi-parameter miniaturized impedance matching transformers

    Authors:
    S. Koziel, A. Pietrenko-Dabrowska
    Academic press:
    Radioengineering (year: 2019, volume: 28, pages: 572-578), Publisher: Chech and Sloval Technical Universities
    Status:
    Published
    DOI:
    10.13164/re.2019.0572 – link to the publication

  48. Simulation-driven size-reduction-oriented design of multi-band antennas by means of response features

    Authors:
    S. Koziel, A. Bekasiewicz
    Academic press:
    IET Microwaves, Antennas & Propagation (year: 2018, volume: 12, pages: 1093-1098), Publisher: IET
    Status:
    Published
    DOI:
    10.1049/iet-map.2017.0632 – link to the publication

  49. Expedited design closure of antenna input characteristics by trust region gradient search and principal component analysis

    Authors:
    J.A. Tomasson, S. Koziel, A. Pietrenko-Dabrowska
    Academic press:
    IEEE Access (year: 2020, volume: 8, pages: 8502-8511), Publisher: IEEE
    Status:
    Published
    DOI:
    10.1109/ACCESS.2020.2964096 – link to the publication

  50. Reduced-cost design closure of antennas by means of gradient search with restricted sensitivity update

    Authors:
    S. Koziel, A. Pietrenko-Dabrowska
    Academic press:
    Metrology and Measurement Systems (year: 2019, volume: 26, pages: 595-605), Publisher: Polska Akademia Nauk
    Status:
    Published
    DOI:
    10.24425/mms.2019.130561 – link to the publication

Articles in post-conference publications (46)

  1. Rapid dimension scaling of triple-band antennas by means of inverse surrogate modeling

    Authors:
    S. Koziel, A. Bekasiewicz
    Conference:
    IEEE International Symposium on Antennas and Propagation (year: 2017, pages: 46024), Publisher: IEEE
    Date:
    conference 9-14 July
    Status:
    Published

  2. Rapid dimension scaling of compact microwave couplers with power split correction

    Authors:
    S. Koziel, A. Bekasiewicz, and J.W. Bandler
    Conference:
    European Microwave Conference (year: 2017, pages: 46026), Publisher: IEEE
    Date:
    conference 10-12 October
    Status:
    Published

  3. Low-cost surrogate modeling for rapid design optimization of antenna structures

    Authors:
    S. Koziel, A. Bekasiewicz
    Conference:
    European Antenna and Propagation Conference (year: 2017, pages: 46026), Publisher: IEEE
    Date:
    conference 19-24 March
    Status:
    Published

  4. Rapid statistical analysis and tolerance-aware design of antennas using response feature surrogates

    Authors:
    S. Koziel, A. Bekasiewicz
    Conference:
    IEEE International Symposium on Antennas and Propagation (year: 2017, pages: 46024), Publisher: IEEE
    Date:
    conference 9-14 July
    Status:
    Published

  5. Multi-objective mixed-integer design optimization of planar inductors using surrogate modeling techniques

    Authors:
    S. Koziel, P. Kurgan, and J.W.Bandler
    Conference:
    IEEE International Microwave Symposium (year: 2017, pages: 46025), Publisher: IEEE
    Date:
    conference 4-9 June
    Status:
    Published

  6. Reduced-cost gradient-based optimization of compact microwave components through adaptive Broyden updates

    Authors:
    S. Koziel, A. Pietrenko-Dabrowska, J.W. Bandler
    Conference:
    IEEE International Microwave Symposium (year: 2019, pages: 909-911), Publisher: IEEE
    Date:
    conference 2-7 June
    Status:
    Published

  7. On reduced-cost design optimization of antennas using trust-region gradient search

    Authors:
    A. Pietrenko-Dabrowska, S. Koziel
    Conference:
    International Applied Computational Electromagnetics Society Symposium (ACES) (year: 2019, pages: 46024), Publisher: IEEE
    Date:
    conference 14-19 April
    Status:
    Published

  8. Reduced-cost gradient-based optimization of compact impedance matching transformers in highly-dimensional parameters spaces

    Authors:
    S. Koziel, A. Pietrenko-Dabrowska
    Conference:
    European Microwave Integrated Circuit Conference (year: 2019, pages: 88-91), Publisher: IEEE
    Date:
    conference 30 Sept. - 1 Oct.
    Status:
    Published

  9. Expedited design optimization of antenna input characteristics using trust-region search with adaptive Jacobian updates

    Authors:
    A. Pietrenko-Dabrowska, S. Koziel
    Conference:
    IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization (NEMO) (year: 2019, pages: 46026), Publisher: IEEE
    Date:
    conference 29-31 May
    Status:
    Published

  10. Computationally efficient and reliable surrogate modeling of antenna structures using performance-driven nested kriging

    Authors:
    S. Koziel, A. Pietrenko-Dabrowska
    Conference:
    IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization (NEMO) (year: 2019, pages: 46026), Publisher: IEEE
    Date:
    conference 29-31 May
    Status:
    Published

  11. Accelerated antenna optimization using gradient search with selective Broyden updates

    Authors:
    S. Koziel, A. Pietrenko-Dabrowska
    Conference:
    International Symposiom on Antennas and Propagation (year: 2019, pages: 1027-1028), Publisher: IEEE
    Date:
    conference 7-12 July
    Status:
    Published

  12. An efficient trust-region algorithm for wideband antenna optimization

    Authors:
    S. Koziel, A. Pietrenko-Dabrowska
    Conference:
    European Antennas and Propagation Conference (year: 2019, pages: 46027), Publisher: IEEE
    Date:
    conference 31 March - 5 April
    Status:
    Published

  13. Reduced-cost design optimization of high-frequency structures using adaptive Jacobian updates

    Authors:
    S. Koziel, A. Pietrenko-Dabrowska, L. Leifsson
    Conference:
    International Conference on Computational Science (year: 2019, pages: 508-522), Publisher: Springer
    Date:
    conference 12-14 June, 2019
    Status:
    Published

  14. A coplanar-strip-based excitation technique for wide 3-dB axial ratio beamwidth and enhanced circular polarization antenna

    Authors:
    U. Ullah, S. Koziel
    Conference:
    European Antennas and Propagation Conference (year: 2019, pages: 46027), Publisher: IEEE
    Date:
    conference 31 March - 5 April
    Status:
    Published

  15. Low-cost multi-objective optimization of antennas by means of generalized Pareto ranking bisection algorithm

    Authors:
    S.D. Unnsteinsson, S. Koziel
    Conference:
    European Antenna and Propagation Conference (year: 2018, pages: 46027), Publisher: IEEE
    Date:
    conference 9-13 April
    Status:
    Published

  16. Novel miniaturized circular polarization antenna with elliptical slots and feed with loaded stubs

    Authors:
    A. Bekasiewicz, S. Koziel, Q.S. Cheng
    Conference:
    European Antenna and Propagation Conference (year: 2018, pages: 46026), Publisher: IEEE
    Date:
    conference 9-13 April
    Status:
    Published

  17. On feed line modifications for compact wideband antenna design

    Authors:
    M.A. Haq, S. Koziel, Q.S. Cheng
    Conference:
    European Antenna and Propagation Conference (year: 2018, pages: 46026), Publisher: IEEE
    Date:
    conference 9-13 April
    Status:
    Published

  18. Design-oriented constrained modeling of antenna structures

    Authors:
    S. Koziel, A.T. Sigurdsson
    Conference:
    European Antenna and Propagation Conference (year: 2018, pages: 46027), Publisher: IEEE
    Date:
    conference 9-13 April
    Status:
    Published

  19. A novel isolation improvement technique for wideband MIMO antenna systems

    Authors:
    M.A. Haq, S. Koziel, Q.S. Cheng
    Conference:
    European Antennas and Propagation Conference (year: 2019, pages: 46026), Publisher: IEEE
    Date:
    conference 31 March - 5 April
    Status:
    Published

  20. Patch size setup and performance/cost trade-offs in multi-objective antenna optimization using domain patching technique

    Authors:
    S. Koziel, A. Bekasiewicz, and Q.S. Cheng
    Conference:
    IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization for RF, Microwave, and Terahertz Applications (year: 2016, pages: 46024), Publisher: IEEE
    Date:
    conference 27-29 July
    Status:
    Published

  21. Surrogate-assisted multi-objective antenna design with equal-compartment-size segmentation

    Authors:
    S. Koziel, A. Bekasiewicz
    Conference:
    Antennas and Propagation Symposium (year: 2018, pages: 1585-1586), Publisher: IEEE
    Date:
    conference 8-13 July
    Status:
    Published

  22. Fast design tuning of linear microstrip antenna array apertures by means of response features

    Authors:
    S. Koziel, S. Ogurtsov
    Conference:
    Antennas and Propagation Symposium (year: 2018, pages: 2235-2236), Publisher: IEEE
    Date:
    conference 8-13 July
    Status:
    Published

  23. Low-cost simulation-driven design of broadband rectifiers for ambient RF energy harvesting

    Authors:
    A. Bekasiewicz, T. Karataev, S. Koziel
    Conference:
    NEMO (year: 2018, pages: 46026), Publisher: IEEE
    Date:
    conference 8-10 August
    Status:
    Published

  24. Improved uniform sampling in constrained domains for data-driven modelling of antennas

    Authors:
    S. Koziel, A.T. Sigurdsson
    Conference:
    Loughborough Antennas & Propagation Conference (LAPC 2018) (year: 2018, pages: 46026), Publisher: IEEE
    Date:
    conference 12-13 Nov.
    Status:
    Published

  25. Rapid dimension scaling of triple-band antennas by means of inverse surrogate modeling

    Authors:
    S. Koziel, A. Bekasiewicz
    Conference:
    IEEE Antennas and Propagation Symposium (year: 2017, pages: 46024), Publisher: IEEE
    Date:
    conference July 9-14
    Status:
    Published

  26. Rapid dimension scaling of compact microwave couplers with power split correction

    Authors:
    S. Koziel, A. Bekasiewicz, J.W. Bandler
    Conference:
    European Microwave Conference (year: 2017, pages: 343-346), Publisher: EuMA
    Date:
    conference October 8-13
    Status:
    Published

  27. Rapid statistical analysis and tolerance-aware design of antennas by response feature surrogates

    Authors:
    S. Koziel, A. Bekasiewicz
    Conference:
    IEEE Antennas and Propagation Symposium (year: 2017, pages: 46024), Publisher: IEEE
    Date:
    conference July 9-14
    Status:
    Published

  28. Uniform sampling procedure for constrained surrogate modeling of antenna structures

    Authors:
    S. Koziel, A.T. Sigurdsson
    Conference:
    International Review of Progress in Applied Computational Electromagnetics (year: 2017, pages: 46024), Publisher: ACES
    Date:
    conference March 26-30
    Status:
    Published

  29. Statistical analysis and robust design of circularly polarized antennas using sequential approximate optimization

    Authors:
    S. Koziel, A. Bekasiewicz
    Conference:
    MIKON (year: 2018, pages: 424-427), Publisher: IEEE
    Date:
    conference 15-17 May
    Status:
    Published

  30. Rapid design tuning of miniaturized rat-race couplers using regression-based equivalent network surrogates

    Authors:
    P. Kurgan, S. Koziel, J.W. Bandler
    Conference:
    IEEE Int. Microwave Symposium (year: 2018, pages: 46025), Publisher: IEEE
    Date:
    conference June 10-15
    Status:
    Published

  31. Reliable EM-driven size reduction of antennas using feasible region boundary search

    Authors:
    D.O. Johannesson, S. Koziel
    Conference:
    Loughborough Antennas and Propagation Conference (year: 2017, pages: 46026), Publisher: IET
    Date:
    conference November 13-15
    Status:
    Published

  32. Comprehensive dimension scaling of multi-band antennas for operating frequencies and substrate parameters

    Authors:
    S. Koziel, A. Bekasiewicz
    Conference:
    MIKON (year: 2018, pages: 408-411), Publisher: IEEE
    Date:
    conference 15-17 May
    Status:
    Published

  33. On low-fidelity models for variable-fidelity simulation-driven design optimization of compact wideband antennas

    Authors:
    S. Koziel, S.D. Unnsteinsson, A. Bekasiewicz
    Conference:
    MIKON (year: 2018, pages: 46026), Publisher: IEEE
    Date:
    conference 15-17 May
    Status:
    Published

  34. Three-objective antenna optimization by means of kriging surrogates and domain segmentation

    Authors:
    S. Koziel, A. Bekasiewicz
    Conference:
    MIKON (year: 2018, pages: 348-351), Publisher: IEEE
    Date:
    conference 15-17 May
    Status:
    Published

  35. Accelerated design optimization of antenna structures using adaptive response scaling

    Authors:
    S. Koziel, S.D. Unnsteinsson
    Conference:
    IEEE Antennas and Propagation Symposium (year: 2018, pages: 791-792), Publisher: IEEE
    Date:
    conference 8-13 July
    Status:
    Published

  36. Size reduction of multi-band antennas using feature-based optimization

    Authors:
    S. Koziel, A. Bekasiewicz
    Conference:
    Loughborough Antennas and Propagation Conference (year: 2017, pages: 46026), Publisher: IET
    Date:
    conference November 13-15
    Status:
    Published

  37. Topological modifications for performance improvement and size reduction of wideband antenna structures

    Authors:
    A. Bekasiewicz, S. Koziel
    Conference:
    MIKON (year: 2018, pages: 46340), Publisher: IEEE
    Date:
    conference May 15-17
    Status:
    Published

  38. Multi-objective design of compact microwave components with data-driven surrogates and pareto front decomposition

    Authors:
    A. Bekasiewicz, S. Koziel, J.W. Bandler
    Conference:
    NEMO (year: 2018, pages: 46026), Publisher: IEEE
    Date:
    conference 8-10 August
    Status:
    Published

  39. A novel dual-band rectifier circuit with enhanced bandwidth for RF energy harvesting applications

    Authors:
    T. Karataev, A. Bekasiewicz, S. Koziel
    Conference:
    MIKON (year: 2018, pages: 161-164), Publisher: IEEE
    Date:
    conference May 15-17
    Status:
    Published

  40. Cost/performance trade-off of domain segmentation for EM-driven surrogate-assisted multi-objective antenna design

    Authors:
    A. Bekasiewicz, S. Koziel
    Conference:
    Loughborough Antennas and Propagation Conference (year: 2017, pages: 46026), Publisher: IET
    Date:
    conference November 13-15
    Status:
    Published

  41. A novel microstrip dual-layer rat-race coupler with compact size and enhanced bandwidth

    Authors:
    A. Bekasiewicz, S. Koziel
    Conference:
    MIKON (year: 2018, pages: 15-18), Publisher: IEEE
    Date:
    conference May 15-17
    Status:
    Published

  42. Expedited two-objective dimension scaling of compact microwave passives using surrogate models

    Authors:
    S. Koziel, A. Bekasiewicz, Q.S. Cheng
    Conference:
    IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization for RF, Microwave, and Terahertz Applications (year: 2016, pages: 46024), Publisher: IEEE
    Date:
    conference 27-29 July
    Status:
    Published

  43. Systematic study of feed line and ground plane modifications for design of miniaturized wideband antennas

    Authors:
    M.A. Haq, S. Koziel, M.A. Khan
    Conference:
    NEMO (year: 2018, pages: 46026), Publisher: IEEE
    Date:
    conference 8-10 August
    Status:
    Published

  44. Accelerated optimization of input characteristics of wideband antennas using improved trust-region gradient search

    Authors:
    S. Koziel
    Conference:
    Loughborough Antennas & Propagation Conference (LAPC 2018) (year: 2018, pages: 10.1049/cp.2018.1477), Publisher: IEEE
    Date:
    conference 12-13 Nov.
    Status:
    Published

  45. EM-driven topology evolution for bandwidth enhancement of hybrid quadrature patch couplers

    Authors:
    A. Bekasiewicz, S. Koziel
    Conference:
    MIKON (year: 2018, pages: 175-178), Publisher: IEEE
    Date:
    conference May 15-17
    Status:
    Published

  46. Accurate design-oriented modeling of compact microwave couplers in constrained domains

    Authors:
    S. Koziel, A.T. Sigurdsson, F.V.. Vidarsson
    Conference:
    NEMO (year: 2018, pages: 46026), Publisher: IEEE
    Date:
    conference 8-10 August
    Status:
    Published

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Graphic design and implementation: Jakub Piotrowski