Department Profile

Department of Electromagnetic Field, Faculty of Electrical Engineering, Czech Technical University in Prague

• electromagnetic field - numerical methods for solution electromagnetic (EM) fields, research of interactions of EM fields with natural and artificial matters and living spicies for diagnostic and terapeutic purposes in medicine, for industrial applications, terahertz high-resolution spectroscopy - research of spectra and EM wave propagation in gases and matters
• antenna technique - multiband, broadband and electrically small antennas, antennas for THz bands
• electromagnetic wave propagation - implementation of EM propagation models for mobile communication technologies, propagation prediction in building areas by broadband outputs; interaction of EM waves with vegetation and hydrometeors;
• microwave and milimeterwave technique - sensors and measurement methods for direct vector measurement of microwave quantities (impedance, reflection and transition coeficient), microwave phase interferometry - sensors and measurement methods for measurement nonelectric magnitudes (distance, movement, shape change, etc.);
• optical communication - parameters of optical components; medical and industrial applications of microwave technics and EM field - interaction of electromagnetic field and living spicies;
• electromagnetic compatibility - methodics and systems for EMI measurement and EM shielding

Consultancy and expert work for solutions of scienfic and engineering tasks: EM field calculations by means of analytical and numeric methods, computed aided desing of electronic circuits (CAD), measurement (CAM) and educations (CAE); research, development and realisation in the fields of antennas, microwave planar and optical circuits and systems; pre-certification measurement of antenna parameters, prediction and development of EM wave propagation models for communication technologies, design of radio links; measurement and testing devices for electromagnetic compatibility - spurios radiation; measurement of EM shielding, precise microwave measurement exploiting calibration methods, chip conctacting by termosonic contacting device - edge and drops technology, planar circuit dimension measurement with precise of 0.001 mm; expert work in the field of applicator for medical and industrial purposes (microwave thermoterapie for oncological, urological, physioterapeutical and cardiological purposes, applicators for textile drying and for heating in chemical technologies)

Laboratories are equiped by devices for antenna and spurios radiation (EMI) measurement in the frequency bands 200 MHz – 110 GHz (spectrum analyser HP8564E up to 40 GHz with external mixers up to 110 GHz, signal generator Agilent Technologies, reflectometer Anritsu S400A a S820 up to 18 GHz, set of measurement antennas for range 200 MHz - 110 GHz, measurement a polarisation turn-tables, …). It is a unique laboratory in the Czech republic and related to implemented metodics (measurement in the near- and the far-field, compact range methods) comparable with foreign universities.

Scalar measurement in the frequency range 10 MHz-40 GHz (scalar analyzer HP 8757E), vector measurement 500kHz - 50 GHz (HP8753C, Agilent PNA E8364A), noise figure measurement up to 18 GHz (HP8970A), frequency measurement up to 20 GHz (Takeda Riken TR5212, HP 5350B), power measurement, measurement of frequency spectrum 9 kHz - 40 GHz.

Workplace consists of 16 computers. Software equipment: RADIOLAB for the design of radio links, circuits simulators MIDE, MICROWAVE OFFICE, electromagnetic simulators for the analysis and optimization microwave circuits and antennas in time and frequency domain CST MWS a FEKO, mathematical tools MATLAB and MathCAD. Other software equipment of the department: electromagnetic simulators ZELAND IE3D a FIDELITY, SEMCAD. Laboratory for antenna measurement in the far field (outer) Laboratory consists of transmitting and receiving workplaces equiped by generator and receiver ATLANTA and calibrated antennas for the frequency range 500 MHz – 110 GHz. Both workplaces has been built simultaneously with the mather building as rooftop extension. It is one of the two inique laboratories in the Czech republic. Most of software equipment is just for educatinal and research purposes only. Commercial exploitation possible in special cases.

It is equiped by waveguide components for the measurement in the range 3 GHz – 110 GHz and by optical reflectometer for component measurement of optical links. Infrared camera FLIR P 25 for contactless measurement of temperature distribution.

„Project of the Czech Ministry of Education, Youth and Sports – Antenna laboratory, building up of shielding antenna and EMC laboratory Research intentions of the Czech Ministry of Education, Youth and Sports: „Research in the Area of the Prospective Information and Navigation Technologies“, 2005-11, developed model for coordination distance communication for mutual coexistence of terrestrial and space satellite services, implemented as the change in 128 ITU-R Recommendation for calculation standads; „Research of the methods and systems for measurement physical quantities and data proccesing““; „Transdisciplinary research in area of BMI: Interactions for medical purposes“, 2000-10, development of applicators for oncologic, urologic, physioterapeutic and cardiologic purposes in medicine; research centers of the Czech Ministry of Education, Youth and Sports: „Centrum for quasioptical systems and terahertz spectroscopy““, KVASTES, 2006-10, extending of operation of experimental spectroscopic aparature;“ „GA CR, AC CR, Ministry of industry and trade grants: “„Microwave phase interferometry““, GA/CR 2004-6, „New methods of microwave circuits analysis “, GA/CR 2004-6, „Timespace simulations of the MWS system in the frequency range 42 GHz“, GA/CR 2004-6, „Microwave diagnostics for biomedical applications“, GA/CR 2005-7, ““- Hyperthermia and anticancer immunomodulation““, AC/CR 2005-8, “„Active protection of vehicals and objects““ Tandem program of Ministry of industry and trade National Security Authority projects: „Error analysis for EMC measurement“, 2003-5, „Antenna set for attenuation measurement“, 2004-5, „System for attenuation of shielding rooms measurement“, 2005“

functional model of textile drying microwave machina, realized in 2004 in cooperation with Research institute of textile machines in Liberec; waveguide measurement link and microwave system for shielding effectiveness measurement, 2004-6; microwave system for the detection and localization of mobile phones in large buildings for Prison Authority of the Czech republic, 2003-4.

„COST 255, COST 235, COST 280, COST 297, COST 0603 ASSIST – participation in international projects ACE – Antenna center “„Of Excellence““ – participation in EU projects of 6.FP LABLINK - Virtual Student Exchange by Linking Laboratories - project of internet access to unique European scientific laboratories bilateral cooperations: TU Helsinki (Fi), TU+DKFZ Heidelberg (D), RWTH Aachen (D), Univerzitá di Roma „Tor Vergata“ (I), Univerzitaet Nuernberg-Erlangen (D), ETH Zuerich (CH), Chalmers University (Goteborg, S), Univerzitaet Kassel (D), Imperiál College – Hammersmith Hospital (London, UK), University of York (UK), MIT (Boston, MA, USA), German Cancer Research Institute in Heidelberg (D), Universitá di Roma, University of Kastel, Universita di Ancona, Politecnico di Milano, Politecnico di Torino (I)“

„EU patent EP 1319914 A2, „Microwave drier for fabrice“, 18.06.2003, authors: Stejskal, Vrba, Oppl, Klepl, patent owner Research institute of textile machines. Patent No. 286620 “„Vector circuit analyser““, 22.5.2000, authors: Hoffmann K., Škvor Z. Patent No. 291019 “„Resonator with loss compensation““ 2.10.2002, authors: Hoffmann K., Škvor Z., patent owner CTU in Prague. Patent No. 295297 “„Power divider with differential outputs““, 24.11.2003, authors: Hoffmann K., Sokol V., patent owner CTU in Prague. Patent No. 296985 „Microstrip patch antenna and one point feed fot the radiator“, 26.6.2006, authors: Holub, A., Polívka, M., patent owner CTU in Prague.“

Prof. Miloš Mazánek, CSc., chief of the department, k317@fel.cvut.cz, tel. +420 224 352 280,2