Summary
Motivated, innovative and experienced (5+ years) antenna/RF engineer in the field of research and design; capable of analytical and numerical analysis using various electronic design automation software and object-oriented programming languages; experience in both academia and industry; author of many scientic publications and patents; measurement experience in the eld of antennas (using Vector Network Analyzer, Time Domain Reection scope, anechoic chamber); prototyping experience using milling machine; European Union citizen; experienced working in an international environment; keen on details and well-organized; able to plan and prioritize work and manage the time accordingly; versatile, flexible and trained to handle work underpressure.
Employment
(February 2009 - present) Full-time research assistant (ger. wiss. Ang.") of Prof. Dr.-Ing. Werner L. Schroeder at RheinMain University of Applied Sciences (Russelsheim, Germany) Industry funded project (OPTION N.V.; Leuven, Belgium): Advanced systematic design of multiport antennas for LTE-enabled USB dongles (ADVANT)
Integration of multiport antennas in a small volume oered by mobile wireless terminals (User Equipment), e.g. mobile wireless modems, laptops, etc., was the goal of ADVANT project. Achieving simultaneously high total per port eciencies and high isolation between antenna ports while covering multiple frequency bands using electrical switching were the most challenging aspects of the project. New systematic techniques for design of electrically switchable and electrically tunable small 2-port MIMO antennas for USB dongles were developed and thoroughly documented. The project resulted in four patents and number of high-quality publications in various international conferences and journals.
(December 2008) Test engineer at Telecom-Service (Gdansk, Poland) Optical Master Unit (OMU) testing for Axell Wireless (Stockholm, Sweden).
(August - September 2008) Project for CENPORT (Gdansk, Poland) Design of dual-cone wideband antenna for air force/civilian ATC communication system.
Education
(February 2009 - present) Duisburg-Essen University (Duisburg, Germany) Ph.D. dissertation (ger. Kooperative Promotion") under supervision of Univ. Prof. Dr.-Ing. Klaus Solbach, working title: Design of Multiport Antennas for MIMO-enabled Mobile Wireless Devices
(October 2003 - July 2008) Gdansk University of Technology (Gdansk, Poland) Faculty of Electronics, Telecommunications and Informatics Specialty: Wireless Communication Engineering Radiocommunication Systems and Networks
(14 July 2008) M.Sc. Eng. degree received. Thesis topic: Application of Metamaterials in Antenna Design.
(July 2005 - September 2007) Project for WiComm Center Of Excellence (Gdansk, Poland) Design and implementation of Ray-Tracing (2D) simulator using Java, C/C++ and
XML. Project involved design of the GUI (Java), calculation engine (MATLAB and C/C++) and data exchange module (XML). Signicant contributions in all stages and team leader in the nal stage of the project.
Internships:
(July 2007) Graduate internship in Telecommunication Research Institute (Gdansk, Poland)
Modeling of IFF (identication, friend or foe) antenna array for naval ships using NEC and MATLAB script programming for data processing.
(July - September 2005) Program internship in WiComm Center of Excellence (Gdansk, Poland)
Design and implementation of Ray-Tracing (2D) simulator. Research, development and implementation of the calculation engine (MATLAB). Advanced Java programming. Implementation of GUI and data
exchange module.
Patents
W. L. Schroeder, A. Krewski, Wireless device with extendable antenna", 2011, European
Patent No. 11167611.0 - 2220
A. Krewski, W. L. Schroeder, Wireless antenna system", 23 October 2012,
PCT/EP2012/070974
A. Krewski, W. L. Schroeder, Antenna system for portable wireless device", 23 October
2012, PCT/EP2012/070976
A. Krewski, W. L. Schroeder, Tunable antenna systems", 17 June 2013, EP13172324.9
Publications
L. Kulas, M. Rapacki, and A. Krewski, "Design of wireless sensor networks using ray-tracing propagation analysis," in Conference of Radiocommunication, Broadcasting and Television, Gdansk, Poland, 13-15 June 2007.
A. Krewski and W. L. Schroeder, "Equivalent circuit model for closely coupled symmetrical two-port MIMO antennas in small volume," in IEEE Antennas and Propagation Society International Symposium (APSURSI), Toronto, Canada, July 2010.
Y. Feng, A. Krewski and W. L. Schroeder, "Towards a simulation tool for comparison of MIMO OTA measurement methods and metrics," in COST 2100, 10th MCM, Athens, Greece, February 2010. TD(10)10058.
Y. Feng, A. Krewski, and W. L. Schroeder, "Simulation based comparison of metrics and measurement methodologies for OTA test of MIMO terminals," in Proceedings of the Fourth European Conference on Antennas and Propagation (EuCAP), Barcelona, Spain, April 2010.
W. L. Schroeder and A. Krewski, "Total multi-port return loss as a figure of merit for MIMO antenna systems," in European Microwave Conference (EuMC), Paris, France, September 2010.
A. Krewski, W. L. Schroeder, and K. Solbach, "Bandwidth limitations and optimum lowband LTE MIMO antenna placement in mobile terminals using modal analysis," in European Conference on Antennas and Propagation (EuCAP), Rome, Italy, April 2011.
A. Krewski, W. L. Schroeder, and K. Solbach, "Matching network synthesis for mobile MIMO antennas based on minimization of the total multi-port reflectance," in Loughborough Antennas and Propagation Conference (LAPC), Loughborough, UK, November 2011.
A. Krewski, W. L. Schroeder, and K. Solbach, MIMO LTE Antenna Design for Laptops Based on Theory of Characteristic Modes," in European Conference on Antennas and Propagation (EuCAP), Prague, Czech Republik, March 2012.
A. Krewski, W. L. Schroeder, and K. Solbach, Multi-band 2-port MIMO LTE Antenna Design for Laptops Based on Theory of Characteristic Modes," in Loughborough Antennas and Propagation Conference (LAPC), Loughborough, UK, November 2012.
A. Krewski and W. L. Schroeder, "N-port DL-MIMO Antenna System Realization Using Systematically Designed Mode Matching and Mode Decomposition Network," in European Microwave Conference (EuMC), Amsterdam, The Netherlands, October 2012.
A. Krewski, W. L. Schroeder, and K. Solbach, "Upper Bound on Pattern Correlation of Lossy N-port Antennas in Terms of Modal Eciencies," in European Conference on Antennas and Propagation (EuCAP), Gothenburg, Sweden, April 2013.
M. Bouezzeddine, A. Krewski and W. L. Schroeder, "A concept study on MIMO antenna system for small size CPE operating in the TV White Spaces," in COST IC1004, 7th MCM, Imenau, Gremany, 2013. TD(13)07051.
A. Krewski, W. L. Schroeder, and K. Solbach, "Multi-band 2-port MIMO Antenna Design for LTE-enabled 13" Monocoque Laptop," in IEEE Antennas and Propagation Society International Symposium (APSURSI), Orlando, US, July 2013.
A. Krewski 2-port MIMO Antenna System for High Frequency Data Link with UAVs Using Characteristic Modes," in IEEE Antennas and Propagation Society International Symposium (APSURSI), Orlando, US, July 2013.
A. Krewski and W. L. Schroeder, "Electrically Tunable Mode Decomposition Network for 2-port MIMO Antennas," in Loughborough Antennas and Propagation Conference (LAPC), Loughborough, UK, November 2013.
A. Krewski, W. L. Schroeder, and K. Solbach, "2-port DL-MIMO Antenna Design for LTE-enabled USB dongles," in IEEE Antennas and Propagation Wireless Letters (AWPL), vol. 12, pp. 1436{1439, November 2013.
A. Krewski, W. L. Schroeder, "Tight Upper Bound on Radiation Pattern Correlation for N- port MIMO Antennas," in Electronics Letters, vol. 49, no.23, pp. 1427{1428, November 2013.
A. Krewski, W. L. Schroeder, "Electrically Small, Electrically Switchable 2-port DL-MIMO Antenna for LTE-enabled USB dongles," in IEEE Transactions on Antennas and Propagation, (manuscript in preparation).
Skills & Familiarity
EDA simulation software: Advanced Design System (ADS), Momentum, Agilent Genesys, CST Microwave Studio, Speag SEMCAD X, Ansoft HFSS, NEC, EMCoS Antenna Virtual Lab
EDA prototyping software: CircuitCAM, BoardMaster
PCB prototyping: LPKF ProtoMat S100
Antenna measurements: Scattering parameters measurements using vector network analyzer, radiation pattern measurements using anechoic chamber
Programming skills: MATLAB, Java, HTML, PHP, SQL, C/C++
Text processing: LATEX2", Microsoft Oce
Area of Interests
Electrically switchable and electrically tunable electrically small multiport antennas
Antenna arrays and special antennas for various applications
Electrically small antennas
Numerical methods and aspects of electromagnetic modeling
Object-oriented programming
Associations
Student Member of IEEE
References
Available upon request |