WHO WE ARE QWED is a company

WHO WE ARE • QWED is a company of the limited liability type, • set up in 1997 by academics originating from the Institute of Radioelectronics, Warsaw University of Technology.

QWED Sp. z o. o. ul. Krzywickiego 12 lok. 1 02 -078 Warsaw, POLAND fax: +48 22 621 62 99 tel. : +48 22 625 73 19 info@qwed. com. pl www. qwed. com. pl

What We Do We invent and commercially develop electromagnetic software packages, of the Quick. Wave series and apply to electromagnetic research and industrial design

What Is Quick. Wave is a cutting edge software which makes possible electromagnetic analysis and reliable design without hardware prototyping

Quick. Wave-3 D QW-3 D - Our Flagship Product A general-purpose 3 D electromagnetic software Includes QW-Editor and QW-Simulator, in a full 3 D regime

QW-V 2 D A vector 2 D electromagnetic software applicable to the analysis of axisymmetrical devices (antennas-as big as 150 wavelength or more!, resonators, circular waveguide discontinuities). Includes QW-Editor and QW-Simulator, working in a vector 2 D regime

QW-Editor A graphical editor for definition of geometry, media, I/O parameters and postprocessing. It comprises a library of parameterised objects and a capability for generating further objects and libraries. Conversion to and from CAD formats is also facilitated.

QW-Simulator A unique, conformal FDTD solver. Its output data include multi-modal, multi-port S-matrices, radiation and scattering patterns, pattern of field, dissipated power, time-domain reflectometry etc.

Areas of Software Application in Industry • • • Telecommunication industry Electronics industry Microwave oven industry Automobile industry Food processing industry Industrial microwave chemistry

Areas of Software Application in Science • Space and atmosphere research • Microwave heating • Electromagnetic impact on biological tissues • Electronics

Examples of Applications (ex. 1. 1) WR-10 waveguide quadrature hybrid with six branch lines Design, measurements and QW-3 D simulations: S. Srikanth and A. R. Kerr, National Radio Astronomy Observatory, Charlottesville, VA 22903, USA

Examples of Applications (ex. 1. 2) Amplitude and phase imbalance – from the measured (MS-noisy) and simulated (QWB-smooth) results. (S. Srikanth and A. R. Kerr, National Radio Astronomy Observatory, Charlottesville, VA 22903, USA) For more QW-3 D results at NRAO, see: ALMA Memos 381, 343, 325, 278 You will find them at: http: //www. mma. nrao. edu/memos/html-memos/alma 278/memo 278. pdf http: //www. mma. nrao. edu/memos/html-memos/alma 343/memo 343. pdf http: //www. mma. nrao. edu/memos/html-memos/alma 325/memo 325. pdf http: //www. mma. nrao. edu/memos/html-memos/alma 278/memo 278. pdf

Examples of Application (ex. 2) E-plane waveguide diplexer Transmission into higher-frequency (upper) and lower-frequency(lower) channels: measurements simulations Design, measurements and QW-3 D simulations: T. Schnabel, Zomatch, CA

Examples of Applications (ex. 3) Pyramidal horn antenna Design & measurements: Prof. B. Stec, Technical Military Academy, Poland Simulations: QWED ------ vertical plane measured ____ vertical plane simulated ------ horizontal plane measured ____ horizontal plane simulated

Examples of Application (ex. 4) Axisymmetrical corrugated horn H at 13. 75 GHz Design & measurements: P. Brachat, IEEE Trans. AP, April 1994 QW-V 2 D simulations: QWED Radiation patterns at 13. 75 GHz

Examples of Application (ex. 5) Dielectric waveguide coupler - a tutorial example from QW-3 D manual Low-permittivity dielectric cross with high-permittivity slab Fundamental mode pattern at 96. 7 GHz Envelope of vertical E-field at 95 GHz Wide-band S-parameters indicating power loss due to higher modes and /or radation

Examples of Application (ex. 6) A tutorial example of TDR from QW-3 D manual Time-domain electric (above) and magnetic (below) fields revealing location and kind of the discontinuity A strip-line structure terminated with a narrow grounded strip; lower half due to magnetic symmetry condition considered

Examples of Application (ex. 7) Thawing a beefburger in a household oven; QW-3 D with QW-BHM Left: system view Right: dissipated power patterns through beef and bread, produced by QW 3 D under the assumption of constant media parameters at either -20 deg or +20 deg. Left: temperature-dependent media characteristics automatically considered by QW-BHM option Right: resulting temperature pattern produced by QW-3 D with QW-BHM. Due to thermal runaway effect, after 35 sec. of heating a hot spot is created in bread while beef remains frozen.

Examples of Application More on microwave heating For more examples of QW-3 D application by our users, please refer to the projects run at Worcester Polytechnic Institute and reported at: http: //www. wpi. edu/Academics/Depts/Math/CIMS/immg/activ. htm You will also find there an independent review of commercial EM software packages: Comparative Analysis of Commercial Electromagnetic Software

Quick. Wave Features • Conformal meshing and conformal FDTD algorithms • Convenient GUI with libraries of parameterised objects • Extraction of S-parameters, also in multimodal lines and below cut-off • Excitation with user-defined source type, pulse type, available power, delay • Electric, magnetic and metal losses • Extensive display of absolute values of fields & power • Extraction of average dissipated power, also in multimodal structures • Batch operation, freeze function, multithread options • Interfaces to optimisers for automatic design

Unique Features standard FDTD conformal mesh in QW-3 D

Unique Features standard FDTD cells in “stair-case” FDTD air dielectric metal examples of conformal cells in Quick. Wave dielectric media interfaces metal boundaries

Unique Features coaxial line in QW-3 D (left) and in stair-case FDTD (right)

Unique Features PEC Offset metal boundary creating a small cell: 1. Stair-case - neglect small cell 2. Brute force conformal - leave small cell, reduce time step 3. Advanced conformal - merge cells For effects on accuracy, please refer to QWED's past events and look for May 2001 IEEE IMS presentation by M. Celuch

Unique Features some specialised libraries Our typical dialogue for parameter setting

Unique Features Accurate S-parameter extraction including multi-modal transmission lines and evanescent modes Allows circuit partitioning close to discontinuities For details and examples, please refer to QWED's past events and look for May 2001 IEEE IMS presentation by W. Gwarek

Unique Features Fast automatic design with Quick. Wave software interfaces to external optimisers, e. g. : Matlab tools in-house QW-Optimiser For details and examples, please refer to QWED's past events on www. qwed. com. pl and look for June 2001 IEEE IMS workshop presentation by W. Gwarek

Licensing Schemes for Quick. Wave Products • Permanent licences - one-computer stand-alone licence - floating network licence • Temporary licences • Free pre-sale benchmarks • Free post-course trials

Our Sales Orientation

QWED’s Prizes 1998 The European Information Technology Prize From European Commission and Euro-Case

QWED’s Prizes 1999 The Prime Minister of Poland Award

QWED’s Prizes 2000 Master of Technology Award From Polish Federation of Engineering Associations

QWED’s Prizes 2000 Proton Award From State Committee for Scientific Research and Proton TV programme

QWED’s Prizes 2001 Leader in Software Export From Polish Software Market Association

QWED’s Prizes 2006 Leader in Software Export 2005 From Polish Software Market Association

QWED’s Certificate 2007 The Certificate from Military Center for Standardization, Quality Assurance and Codification

Joint Consulting Activities In collaboration with the Institute of Radioelectronics: • designing high-power sources of high frequency stability • measuring material properties in wide range of frequencies and loss tangents.

Joint Consulting Activities Split post dielectric resonator (5. 6 GHz) In collaboration with Prof. Jerzy Krupka, resonators for measurements of: • complex permittivity, • complex permeability • surface resistance at microwave frequencies. Re-entrant cavity (800 MHz)

We will be happy to answer your questions or enquiries. You may reach us at info@qwed. com. pl

Thank you for your attention and interest in QWED