Radiowave Propagation

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Team

Past Members: Martin Klepal, Petr Ledl, Filip Mikas, Jaroslav Holis, Petr Horak, Robert Urban, Michal Simunek, Tianyou Yu, Wenkang Zhao, Jan Zeleny, Ludek Subrt

Research

Selected Projects

  • Basic Research of Propagation of Electromagnetic Waves in the Atmospheric Boundary Layer for Low Elevation Links, Czech Science Foundation, grant no. P102/14-01527S, 2014-2016.
  • Intelligent Infrastructures for Cognitive Networks – simulations of an intelligent walls concept using agent-based models, Czech Ministry of Education, Youth and Sports, grant no. LD13040, 2013
  • Propagation Models for Interference and Frequency Coordination Analyses, ESA Contract No. 4000105298/12/NL/CLP, 2012-2014
  • WiFEEB - Wireless Friendly Energy Efficient Buildings, FP7 Marie Curie IAPP project No. 286333, Coordinator University of Sheffield, 2012-2015 
  • MIMO Channel Modeling and Cooperative Transmission Techniques in Hybrid Terrestrial and Satellite Networks (collaboration with National Technical University of Athens), Czech Ministry of Education, Youth and Sports, grant no. 7AMB12GR052, 2012-2013
  • Basic Research of Radiometeorology Properties of Tropospheric Ducting Layers by Using Artificial Intelligence Methods, Czech Science Foundation, grant no. P102/10/1901, 2010-2012
  • Intelligent Infrastructures for Cognitive Networks, Czech Ministry of Education, Youth and Sports, grant no. OC10005, 2010-2012
  • COST Action IC0902, Cognitive Radio and Networking for Cooperative Coexistence of Heterogeneous Wireless Networks, 2009-2013
  • Building Penetration Measurement and Modelling for Satellite Communications at L, S and C-Band, ESA PECS project No. 98069, 2009-2010
  • Propagation Modeling of Shadowing by Vegetation for Mobile Satcom & Satnav Systems, Czech Ministry of Education, Youth and Sports, grant no. OC09074, 2009-2012
  • COST Action IC0802, Propagation tools and data for integrated Telecommunication, Navigation and Earth Observation systems, 2008-2012
  • COST Action IC0803, RF/Microwave Communication Subsystems for Emerging Wireless Technologies (RFCSET), 2008-2012
  • Advanced Communication Systems and Radiowave Propagation Modelling for High Altitude Platforms, Czech Ministry of Education, Youth and Sports, grant no. OC 092, 2006-2009
  • HAPCOS – COST Action 297, High Altitude Platforms for Communications and Other Services, 2005-2009
  • Research on Electromagnetic Wave Refraction and Refractivity Height Profiles in Troposphere, Czech Science Foundation, grant no. GA102/07/0955, 2007-2009
  • Time-space Simulations of MWS Systems in 42 GHz Band, Czech Science Foundation, grant no. GA102/04/2153, 2004-2006
  • Propagation of Electromagnetic Waves in Millimetre Waveband for Advanced Communication Systems, Czech Ministry of Education, Youth and Sports, grant no. OC 280.003, 2003-2005
  • Performance and Reliability of Advanced Telecommunication Systems using Millimetre Wavelengths in the Czech Republic, Czech Science Foundation, grant no. GA102/01/0029, 2001-2003
  • Propagation Impairment Mitigation for Millimetre Wave Radio Systems, Czech Ministry of Education, Youth and Sports, grant no. OC 280.001, 2001-2003
  • Indoor Propagation Prediction for Wireless Broadband Systems, Czech Science Foundation, grant no. GA102/01/D117, 2001-2003
  • Measurement Methods for Attenuation of Walls and Additional Shielding Materials, NBU ST20022002006, 2002
  • Theory and Modelling of Electromagnetic Wave Propagation and Design Leading to Reduction of Information Leakage due to Electromagnetic Radiation, NBÚ SU20012001007, 2001

Publications

Selected Journal Papers

Books

  • Pechac, P. - Zvanovec, S.: Principles of Radiowave Propagation for Planning of Terrestrial Radio Links. 1. ed. Praha: BEN - technicka literatura, 2007. 200 p. ISBN 978-80-7300-223-7. (in Czech).
  • Pechac, P.: Radiowave Propagation in Build-Up Areas - Models for Planning of Mobile Wireless Systems. 1. ed. Praha: BEN - technicka literatura, 2006. 108 p. ISBN 80-7300-186-1. (in Czech).
     

Selected Conference Papers

  • Subrt, L. - Pechac, P. - Hrstka, O. - Micka, V. - Vokrínek, J.: Novel Mobility Model for Indoor Conference Scenarios. In Conference Proceedings of EuCAP 2014. Bruxelles: The European Association on Antennas and Propagation, 2014, p. 2136-2137. ISBN 978-88-907018-4-9.
  • Subrt, L. - Pechac, P. - Vallecchi, A. - Ford, L. - Langley, R. - et al.: Advanced Modelling of Intelligent Walls for Indoor Smart Environments. In Conference Proceedings of EuCAP 2014. Bruxelles: The European Association on Antennas and Propagation, 2014, p. 620-622. ISBN 978-88-907018-4-9.
  • Valtr, P. - Yu, T. - Zhao, W. - Pechac, P. - Altan, H. - et al.: Frequency Selective Building Facades. In Conference Proceedings of EuCAP 2014. Bruxelles: The European Association on Antennas and Propagation, 2014, p. 623-624. ISBN 978-88-907018-4-9.
  • Kvicera, M. - Valtr, P. - Korínek, T. - Pechac, P. - Grabner, M. - et al.: Short-Term Terrain Diffraction Measurements: Preliminary Results. In Proceedings of the 7th European Conference on Antennas and Propagation (EUCAP 2013). Piscataway: IEEE, 2013, p. 52-55. ISBN 978-88-907018-3-2.
  • Simůnek, M. - Pechac, P. - Pérez-Fontán, F.: Space Diversity Analysis for Low Elevation Links in a Wooded Area. In Proceedings of the 7th European Conference on Antennas and Propagation (EUCAP 2013). Piscataway: IEEE, 2013, p. 2281-2284. ISBN 978-88-907018-3-2.
  • Valtr, P. - Pechac, P.: EM Wave Transmission through a Window Blind Structure. In 2013 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC). Piscataway: IEEE, 2013, p. 472-474. ISBN 978-1-4673-5689-3.
  • Valtr, P. - Pechac, P. - Korínek, T. - Morávek, O. - Príhoda, M.: Measurement of Window Blind Attenuation at 5-50 GHz. In Proceedings of the 7th European Conference on Antennas and Propagation (EUCAP 2013). Piscataway: IEEE, 2013, p. 3653-3656. ISBN 978-88-907018-3-2.
  • Grabner, M. - Kvicera, V. - Pechac, P. - Jicha, O.: First and Second Order Statistics of Clear-Air Attenuation on 11 GHz Terrestrial Path. In Proceedings of the 6th European Conference on Antennas and Propagation (EUCAP 2012) [CD-ROM]. Piscataway: IEEE, 2012, p. 2401-2404. ISBN 978-1-4577-0920-3.
  • Grabner, M. - Kvicera, V. - Pechac, P. - Jicha, O.: On the Short-term Time Evolution of Elevated Ducting Layers. In Proc. of 2012 Loughborough Antennas & Propagation Conference. Loughborough: Loughborough University, 2012, p. 1-4. ISBN 978-1-4673-2219-5.
  • Grabner, M. - Kvicera, V. - Pechac, P. - Jicha, O.: Parameters of Vertical Profiles of Temperature, Humidity and Refractive Index of Air in the Lowes Troposphere. In Proceedings of the 9th International Symposium on Tropospheric Profiling. Noordwijk: ESA Publications Division, 2012, p. 1-4. ISBN 978-90-815839-4-7
  • Horak, P. - Pechac, P.: Frequency Dependence of Vegetation Shadowing Loss for Satellite Services. In Proceedings of the 6th European Conference on Antennas and Propagation (EUCAP 2012) [CD-ROM]. Piscataway: IEEE, 2012, p. 2445-2448. ISBN 978-1-4577-0920-3.
  • Jicha, O. - Pechac, P. - Kvicera, V. - Grabner, M.: Estimation of Radio Refractivity Profile Gradient From Multiple LOS Links Using Artificial Neural Networks - First Results. In Proceedings of the 6th European Conference on Antennas and Propagation (EUCAP 2012) [CD-ROM]. Piscataway: IEEE, 2012, p. 1174-1177. ISBN 978-1-4577-0920-3.
  • Jicha, O. - Pechac, P. - Zvanovec, S. - Grabner, M. - Kvicera, V.: Long-term Measurements of Refractive Index Structure Constant in Atmospheric Boundary Layer. In Proceedings of SPIE - Optics in Atmospheric Propagation and Adaptive Systems XV. Washington: SPIE, 2012, p. 1-8. ISBN 978-0-8194-9275-3.
  • Kvicera, M. - Pechac, P.: Building Penetration Loss Modelling for Satellite Services At L-, S- and C-band. In Proceedings of the 6th European Conference on Antennas and Propagation (EUCAP 2012) [CD-ROM]. Piscataway: IEEE, 2012, p. 2427-2430. ISBN 978-1-4577-0920-3.
  • Kvicera, M. - Pechac, P.: Propagation Measurements in a Wide Range of Elevation Angles Using a Remote-Controlled Airship. In Proceedings of the 2012 International Symposium on Antennas and Propagation [CD-ROM]. Tokyo: The Institute of Electronics, Information and Communication Engineers, 2012, p. 632-635. ISBN 978-4-88552-269-7.
  • Simunek, M. - Pechac, P.: Space Diversity Analysis for Low Elevation Links in Urban Areas. In Proceedings of the 6th European Conference on Antennas and Propagation (EUCAP 2012) [CD-ROM]. Piscataway: IEEE, 2012, p. 1165-1168. ISBN 978-1-4577-0920-3.
  • Subrt, L. - Pechac, P.: Controlling Coverage Using New Concept of Pre-Installed Infrastructure. In Proceedings of the 6th European Conference on Antennas and Propagation (EUCAP 2012) [CD-ROM]. Piscataway: IEEE, 2012, p. 1161-1164. ISBN 978-1-4577-0920-3.
  • Subrt, L. - Pechac, P.: Controlling Propagation Environments Using Intelligent Walls. In Proceedings of the 6th European Conference on Antennas and Propagation (EUCAP 2012) [CD-ROM]. Piscataway: IEEE, 2012, p. 1-5. ISBN 978-1-4577-0920-3.
  • Zvanovec, S. - Pechac, P.: First Results of Rain Spatial Parameters Analyses for Optical Links. In Proceedings of the 6th European Conference on Antennas and Propagation (EUCAP 2012) [CD-ROM]. Piscataway: IEEE, 2012, p. 320-322. ISBN 978-1-4577-0920-3.
  • Grábner, M. - Kvicera, V. - Pechač, P. - Jícha, O.: Measured and Simulated Fluctuations of Received Power on 11 GHz Terrestrial Path Using Vertical Profiles of Atmospheric Refractivity. In Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP). Piscataway: IEEE, 2011, p. 190-193. ISBN 978-88-8202-074-3.
  • Horak, P. - Pechac, P.: Attenuation Due to Vegetation for Satellite Services: Winter Season Measurement. In Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP). Piscataway: IEEE, 2011, p. 1938-1940. ISBN 978-88-8202-074-3.
  • Subrt, L. - Pechac, P.: Influence of Modelling Diffraction on Electromagnetic Wave Propagation Predictions in Subterranean Gallerie. In Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP). Piscataway: IEEE, 2011, p. 1751-1754. ISBN 978-88-8202-074-3.
  • Jícha, O. - Pechac, P. - Kvicera, V. - Grabner, M.: Troposphere Refraction State Classification Using Measured Attenuation of Non-Line-of-Sight Microwave Links. In Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP). Piscataway: IEEE, 2011, p. 1723-1726. ISBN 978-88-8202-074-3.
  • Horak, P. - Kvicera, M. - Simunek, M. - Korinek, T. - Zela, J. - Pechac, P.: Vegetation Attenuation Measurements at 2 GHz using a Remote-Controlled Airship - Initial Results. In Proceedings of the 4th European Conference on Antennas and Propagation. Barcelona, 2010. ISBN 978-84-7653-468-7.
  • Kvicera, M. - Horak, P. - Korinek, T. - Zela, J. - Simunek, M. - Pechac, P.: Building Penetration Loss Measurements for Satellite-to-Indoor Systems: Preliminary Results. In Proceedings of the 4th European Conference on Antennas and Propagation. Barcelona, 2010. ISBN 978-84-7653-468-7.
  • Mudroch, M. - Pechac, P. - Grabner, M. - Kvicera, V.: Atmospheric Refractivity Evaluation Improved Using Artificial Neural Networks. In Proceedings of the 4th European Conference on Antennas and Propagation. Barcelona, 2010. ISBN 978-84-7653-468-7.
  • Subrt, L. - Pechac, P.: The Influence of Dynamic Changes of Indoor Scenarios on Electromagnetic Wave Propagation. In Proceedings of the 4th European Conference on Antennas and Propagation. Barcelona, 2010. ISBN 978-84-7653-468-7.
  • Urban, R. - Subrt, L. - Pechac, P.: Ultra Wideband Pulse Shaping Using Freauency Mixer. In IEEE International Microwave Workshop Series on RF Front-ends for Software Defined and Cognitive Radio Solutions - Book of Abstracts. Aveiro: University of Aveiro, 2010, p. 67-68.
  • Grabner, M. - Kvicera, V. - Pechac, P. - Valtr, P.: Joint Probability Distribution and Correlation of Multipath Signals on 10 GHz Fixed Terrestrial Link. In EuCAP 2009 - 3rd European Conference on Antennas and Propagation [CD-ROM]. Berlin: VDE Verlag, 2009, p. 3865-3868. ISBN 978-3-8007-3152-7.
  • Holis, J. - Pechac, P.: Measurement of Building Penetration Loss as a Function of the Elevation Angle and Floor Level. In EuCAP 2009 - 3rd European Conference on Antennas and Propagation [CD-ROM]. Berlin: VDE Verlag, 2009, p. 3586-3590. ISBN 978-3-8007-3152-7.
  • Horak, P. - Pechac, P.: A Study on the Possibilities of Providing Signal Coverage for Wireless Systems from High Altitude Platforms. In EuCAP 2009 - 3rd European Conference on Antennas and Propagation [CD-ROM]. Berlin: VDE Verlag, 2009, p. 1395-1398. ISBN 978-3-8007-3152-7.
  • Mudroch, M. - Pechac, P. - Grabner, M. - Kvicera, V.: First Results from Remote Sensing of the Atmosphere Using Artificial Neural Networks. In EuCAP 2009 - 3rd European Conference on Antennas and Propagation [CD-ROM]. Berlin: VDE Verlag, 2009, p. 1419-1422. ISBN 978-3-8007-3152-7.
  • Subrt, L. - Pechac, P.: A 3D Model for Wideband Propagation Predictions in Tunnels. In EuCAP 2009 - 3rd European Conference on Antennas and Propagation [CD-ROM]. Berlin: VDE Verlag, 2009, p. 2253-2256. ISBN 978-3-8007-3152-7.
  • Urban, R. - Zvanovec, S. - Pechac, P.: Time Domain Detection of Interference Signals using Ultra Wideband Techniques. In EuCAP 2009 - 3rd European Conference on Antennas and Propagation [CD-ROM]. Berlin: VDE Verlag, 2009, p. 200-203. ISBN 978-3-8007-3152-7.
  • Zvanovec, S. - Kvicera, M. - Kucharik, P. - Cerný, P. - Pechac, P.: Beam Propagation Simulations of Quasioptical Systems. In EuCAP 2009 - 3rd European Conference on Antennas and Propagation [CD-ROM]. Berlin: VDE Verlag, 2009, p. 3827-3829. ISBN 978-3-8007-3152-7.
  • Zvanovec, S. - Pechac, P. - Mazanek, M.: Route Diversity Simulations in Multi-HAP Networks during Heavy Rainstorms. In EuCAP 2009 - 3rd European Conference on Antennas and Propagation [CD-ROM]. Berlin: VDE Verlag, 2009, p. 305-307. ISBN 978-3-8007-3152-7.
  • Holis, J. - Pechac, P.: Application of Realistic Propagation Prediction Models for HAP 3.5G Systems in Urban Environment. In ISAP 2008 Proceedings [CD-ROM]. Tokyo: IEICE, Institute of Electronics, Information and Communication Engineers , 2008, p. 786-789. ISBN 978-986-84787-0-1.
  • Mudroch, M. - Grabner, P. - Kvicera, V. - Hudec, P. - Bedrna, P. - et al.: An Experimental Study of the Lowest Troposphere Layers at 10 GHz - First Results. In Proceedings of the 14th Conference on Microwave Techniques COMITE 2008 [CD-ROM]. Praha: ceskoslovenska sekce IEEE, 2008, p. 73-76. ISBN 978-1-4244-2138-1.
  • Holis, J. - Pechac, P.: Analysis of Propagation Effects for HAP 3G Networks in Urban Areas. In Proceeding of the 2nd European Conference on Antennas and Propagation, Edinburgh. The Institution of Engineering and Technology (IET), 2007, ISBN 978-0-86341-842-6.
  •     Holis, J. - Pechac, P.: Application of High Altitude Platforms to the Provision of 3G Mobile Services in Sparsely-Populated areas. In Proceedings of the 2007 International Symposium on Antennas and Propagation [CD-ROM]. Tokyo: The Institute of Electronics, Information and Communication Engineers, 2007, p. 466-469. ISBN 978-4-88552-223-9.
  • Holis, J. - Pechac, P.: Measurement of Propagation Effects from Low Altitude Airship in Urban Area Appplicable for Stratospheric Platforms. In Proceedings of the 2007 International Symposium on Antennas and Propagation [CD-ROM]. Tokyo: The Institute of Electronics, Information and Communication Engineers, 2007, p. 462-465. ISBN 978-4-88552-223-9.
  • Hradecký, Z. - Pechač, P. - Mazánek, M. - Galuščák, R.: Septum Horn Antennas at 47/48 GHz for High Altitude Platform Stations. In Proceeding of the 2nd European Conference on Antennas and Propagation, Edinburgh. The Institution of Engineering and Technology (IET), 2007, ISBN 978-0-86341-842-6.
  • Valtr, P. - Pechac, P. - Kvicera, V. - Grabner, M.: A Radiowave Propagation Study In Urban Environment Using The Fourier Split-Step Parabolic Equation. In Proceeding of the 2nd European Conference on Antennas and Propagation, Edinburgh. The Institution of Engineering and Technology (IET), 2007, ISBN 978-0-86341-842-6.
  • Valtr, P. - Pechac, P. - Kvicera, V. - Grabner, M.: Implementation Issues of the Matched Field Processing Method of Refractivity Structure Sounding. In Proceeding of the 2nd European Conference on Antennas and Propagation, Edinburgh. The Institution of Engineering and Technology (IET), 2007, ISBN 978-0-86341-842-6.
  • Zvanovec, S. - Pechac, P.: Influence of Rain Event Area on PMP System Performance. In Proceeding of the 2nd European Conference on Antennas and Propagation, Edinburgh. The Institution of Engineering and Technology (IET), 2007, ISBN 978-0-86341-842-6.
  • Zvanovec, S. - Piksa, P. - Cerný, P. - Mazánek, M. - Pechac, P.: Gas Attenutation Measurement by Utilization of Fabry-Perot Resonator. In Proceeding of the 2nd European Conference on Antennas and Propagation, Edinburgh. The Institution of Engineering and Technology (IET), 2007, ISBN 978-0-86341-842-6.
  • Valtr, P. - Pechac, P.: Analytic Tropospheric Ray-tracing Model for Constant Refractivity Gradient Profiles. In Proceedings of The European Conference on Antennas and Propagation: EuCAP 2006. 2006, ISBN 92-9092-937-5.
  • Zvanovec, S. - Pechac, P. - Kvicera, V. - Mazanek, M.: Dependence of Area-Averaged Rain Rate on PMP System Coverage Planning. In Proceedings of the International Symposium on Antennas and Propagation - ISAP 2006. 2006, ISBN 81-903170-8-3.
  • Zvanovec, S. - Hazdra, P. - Kořinek, T. - Pechac, P. - Mazanek, M.: Measurement of Shielding Effectiveness of Small Enclosures. In EMC Europe 2006 - International Symposium on Electromagnetic Compatibility - Proceedings 1, 2. Barcelona, 2006, vol. 1,2, p. 249-252. ISBN 84-689-9440-5.
  • Holis, J. - Pechac, P. - Kořinek, T. - Hudec, P. - Valtr, P. - et al.: Measurement Trials in the 3G and Millimetre Frequency Bands using a Low Altitude Airship. In Proceedings in First COST 297 - HAPCOS Workshop. York: COST Office, 2006,
  • Zvanovec, S. - Pechac, P.: On the Proper Utilization of Site Diversity Mechanism in Millimeter-Wave Band PMP Systems. In Proceedings of The European Conference on Antennas and Propagation: EuCAP 2006. 2006, ISBN 92-9092-937-5.
  • Vrba, J. - Pechac, P.: Parametric Study of Coaxial Radiating Cables. In Proceedings of The European Conference on Antennas and Propagation: EuCAP 2006. 2006, ISBN 92-9092-937-5.
  • Holis, J. - Pechac, P.: Propagation Prediction for High Altitude Platforms in 3G Frequency Band. In Proceeding of the 9th International Symposium Wireless Personal Multimedia Communications, WPMC, 2006, p. 1219-1221. ISSN 1347-6890.
  • Holis, J. - Pechac, P.: Simulation of UMTS Networks provided via HAP Stations Using Elliptical and Circular Beam Antennas in Urban and Suburban Areas. In Proceeding of the 9th International Symposium Wireless Personal Multimedia Communications. WPMC, 2006, p. 348-351. ISSN 1347-6890.
  • Valtr, P. - Kucera, J. - Bartik, H. - Pechac, P.: The Influence of Building Material Humidity on Wedge Diffraction. In Proceedings of The European Conference on Antennas and Propagation: EuCAP 2006. 2006, ISBN 92-9092-937-5.
  • Holis, J. - Grace, D. - Pechac, P.: The Optimization of Antenna Power Roll-off for High Altitude Platform WCDMA Systems. In Proceedings in First COST 297 - HAPCOS Workshop. York: COST Office, 2006,
  • Zvanovec, S. - Pechac, P.: Wave Propagation Simulations at 48 GHz for HAPs Using Rainfall Radar Data. In Proceedings in First COST 297 - HAPCOS Workshop. York: COST Office, 2006,
  • Holis, J. - Pechac, P.: Effective Propagation Prediction in Urban Microcells. In Proceedings of WPMC´05 - International Symposium of Wireless Personal Multimedia Communications, 2005, p. 398-401. ISBN 87-90834-79-8.
  • Zvanovec, S. - Pechac, P.: Effects of Rain Rate Spatial Distribution on Pont-to-Multipoint Systems. In Proceedings - ISAP 2005. 2005, p. 1197-1200. ISBN 89-86522-76-4.
  • Valtr, P. - Zvanovec, S. - Pechac, P.: Investigation of Significant Uncertainties in EMC Measurement. In The 13th Conference on Microwave Techniques - COMITE 2005. 2005, p. 151-154. ISBN 80-86582-16-7.
  • Holis, J. - Pechac, P.: Iteration - Based Simulations of UMTS Capacity and Quality of Coverage in High Altitude Platform Basic Scenarions. In Proceedings - International Workshop on High Altitude Platform Systems - WHAPS 05. 2005,
  • Mazanek, M. - Pechac, P. - Hazdra, P. - Pankrac, V.: Measurement of a Shielding Effectiveness of Relatively Small Metallic Enclosures. In Proceedings - ISAP 2005. 2005, p. 913-916. ISBN 89-86522-76-4.
  • Valtr, P. - Pechac, P.: Novel Method of Vertical Refractivity Profile Estimation using Angle of Arrival Spetra. In Proceedings - XXVIIIth General Assembly of International Union Radio Science (URSI). 2005,
  • Pechac, P. - Ledl, P. - Mazanek, M.: Radiated Near-Field Measurement - Vegetation Scattering. In Proceedings of the International Conference on Electromagnetic Near-Field Characterization and Imaging. Barcelona, 2005, p. 187-192. ISBN 84-95999-72-2.
  • Zvanovec, S. - Pechac, P. - Mazanek, M.: Rain Dependant Site Diversity Outage Improvements Statistics for Systems Working in Millimeter-Wave Band. In Proceedings - XXVIIIth General Assembly of International Union Radio Science (URSI). 2005,
  • Valtr, P. - Pechac, P.: Refractivity Height Profile Estimations Based on Radiowave Refraction Simulations. In COST 280 - Final Workshop - Proceedings, 2005,
  • Zvanovec, S. - Hazdra, P. - Pechac, P. - Mazanek, M.: Shielding Effectiveness Measurement Issues for Small Enclosures. In The 13th Conference on Microwave Techniques - COMITE 2005. 2005, p. 291-294. ISBN 80-86582-16-7.
  • Hradecky, Z. - Pechac, P. - Mazanek, M.: Shielding Efficiency Measurement Possibilites. In The 13th Conference on Microwave Techniques - COMITE 2005. 2005, p. 283-286. ISBN 80-86582-16-7.
  • Holis, J. - Pechac, P. - Ledl, P.: Simulation of UMTS Capacity in Microcellular Urban Environment. In Proceedings of WPMC´05 - International Symposium of Wireless Personal Multimedia Communications. 2005, p. 1747-1750. ISBN 87-90834-79-8.
  • Zvanovec, S. - Pechac, P.: Simulations of Site Diversity Based Outage Improvements for Point-to-Multipoint Systems in Millimeter-Wave Band . In Wireless Telecommunications Symposium 2005. 2005, ISBN 0-7803-8857-7.
  • Holis, J. - Pechac, P.: Study of UMTS in Urban Macro and Microcellular Environment. In The 13th Conference on Microwave Techniques - COMITE 2005. 2005, p. 60-63. ISBN 80-86582-16-7.
  • Hradecky, Z. - Mikas, F. - Klepal, M. - Pechac, P. - Mazanek, M.: Building Electrical Parameters Estimation. In Symposium Proceedings - URSI-F 2004. p. 55-58. ISBN 0-646-43423-3.
  • Mazanek, M. - Valtr, P. - Pechac, P.: Measurement of Diffraction on Dielectric Building Materials to Improve the Remote Sensing Data Evaluation. In Symposium Proceedings - URSI-F 2004. p. 116-125. ISBN 0-646-43423-3.
  • Pechac, P. - Ledl, P. - Mazanek, M.: Modeling and Measurement of Dynamic Vegetation Effects at 38 GHz. In Symposium Proceedings - URSI-F 2004. p. 147-155. ISBN 0-646-43423-3.
  • Pechac, P. - Klepal, M. - Martinez, A.: Modeling and Optimization of Heterogeneous Wireless LAN. In Proceedings of the 2004 60th Vehicular Technology Conference. 2004, ISBN 0-7803-8522-5.
  • Pechac, P. - Hradecky, Z. - Zvanovec, S. - Mazanek, M.: Shielding Efficiency Waveguide Measurements at 400 MHz. In Proceedings of the 2004 60th Vehicular Technology Conference. 2004, ISBN 0-7803-8522-5.
  • Zvanovec, S. - Pechac, P.: Site Diversity Time-Space Simulations for LMDS. In Proceedings of the 2004 60th Vehicular Technology Conference. 2004, ISBN 0-7803-8522-5.
  • Zvanovec, S. - Pechac, P. - Mazanek, M.: Space-Time Simulations of Point-to-multipoint Radio Systems Performance During Rain Events Using Radar Data. In Symposium Proceedings - URSI-F 2004. p. 208-212. ISBN 0-646-43423-3.
  • Klepal, M. - Pechac, P.: Large Dynamic Range Prediction of AOA, AOD and PDP for MIMO Systems. In Antennas & Propagation - Twelfth International Conference - ICAP 2003. IEE, 2003, p. 775-779. ISBN 0 85296 752 7.
  • Zvanovec, S. - Valek, M. - Pechac, P.: Results of Indoor Propagation Measurement Campaign for WLAN Systems Operating in 2.4 GHz ISM Band. In Antennas & Propagation - Twelfth International Conference - ICAP 2003. IEE, 2003, p. 63-66. ISBN 0 85296 752 7.
  • Klepal, M. - Pechac, P.: Site-Specific Channel Parameters Prediction for MIMO Systems. In COMITE 2003. 2003, p. 29-30. ISBN 80-86582-09-4.
  • Mikas, F. - Pechac, P.: The 3D Approximation of Antenna Radiation Patterns. In Antennas & Propagation - Twelfth International Conference - ICAP 2003. IEE, 2003, p. 751-754. ISBN 0 85296 752 7.
  • Ledl, P. - Pechac, P. - Mazanek, M.: Time-Series Prediction of Attenuation Caused by Trees for Fixed Wireless Access Systems Operating in Millimeter Waveband. In Antennas & Propagation - Twelfth International Conference - ICAP 2003. IEE, 2003, p. 646-649. ISBN 0 85296 752 7.
  • Ledl, P. - Pechac, P. - Mazanek, M.: Tree Attenuation Measurement Experiment in Millimeter Waveband. In COMITE 2003. 2003, p. 25-28. ISBN 80-86582-09-4.
  • Pechac, P.: Application of ANT Colony Optimisation Algorithm on the Recursive Propagation Model for Urban Microcells. In XXVIIth General Assembly the International Union of Radio Science. Maastricht: URSI, 2002, p. 569.
  • Klepal, M. - Pechac, P. - Hradecky, Z.: Prediction of Wide-Band Parameters of Mobile Propagation Channel. In XXVIIth General Assembly the International Union of Radio Science. Maastricht: URSI, 2002, p. 459.
  • Pechac, P.: Simple Ray Tracing in Inhomogeneous Mediums Using and Colony Optimization Algorithm. In ISAP i-02. Tokyo, 2002, p. 488-491.
  • Ledl, P. - Pechac, P. - Mazanek, M.: Vegetation Effects Modeling for Terrestrial Broadband Radio Access Systems Operating in Millimeter Waveband. In ISAP i-02. Tokyo, 2002, p. 492-495.
  • Ledl, P. - Pechac, P. - Mazanek, M.: Area Coverage Modeling for Systems Operating in Millimeter Wave Band. In COMITE 2001. 2001, p. 87-90. ISBN 80-902417-9-4.
  • Pechac, P. - Klepal, M.: Effective Indoor Propagation Predictions. In 54th Vehicular Technology Conference VTC Fall 2001. IEEE, 2001, p. 1-4. ISBN 0-7803-7007-4.
  • Pechac, P. - Klepal, M. - Mazanek, M.: New Fast Approach to Wideband Propagation Prediction in Picocells. In Antennas and Propagation (ICAP 2001).IEE, 2001, vol. 1, p. 216-217. ISBN 0-85296-733-0.
  • Ledl, P. - Pechac, P. - Mazanek, M.: Signal Propagation Aspects for Local Multipoint Distribution System (LMDS) Operating in Millimeter Wave Band. In 10th Aachen Symposium on Signal Theory - Proceedings. 2001, p. 415-418. ISBN 3-8007-2610-6.
  • Klepal, M. - Pechac, P.: Wide-Band Indoor Propagation Prediction by Motif Model. In 10th Aachen Symposium on Signal Theory - Proceedings. 2001, p. 405-408. ISBN 3-8007-2610-6.
  • Mazanek, M. - Klepal, M. - Pechac, P. - Polivka, M. - Bartik, H.: Anechoic and EMC Chambers - Modelling, Design, Testing. In Millenium Conference on Antennas and Propagation - AP 2000. 2000, vol. 2, p. 156-160. ISBN 92-9092-776-3.
  • Pechac, P. - Klepal, M. - Mazanek, M.: Indoor Propagation Modelling in Multi-Storey Buildings in Prague. In Millenium Conference on Antennas and Propagation - AP 2000. 2000, vol. 2, p. 369-373. ISBN 92-9092-776-3.
  • Pechac, P. - Klepal, M. - Mazanek, M.: Novel Approach to Indoor Semi-Deterministic Propagation Prediction. In 2000 IEEE AP-S. Piscataway: IEEE, 2000, p. 50-51. ISBN 0-7803-6372-8.
  • Mazanek, M. - Pechac, P.: EMI Measurement in EMC Test Fascilities. In The 10th Conference on Microwave Techniques COMITE 1999. 1999, p. 141-144. ISBN 80-902417-3-5.
  • Mazanek, M. - Pechac, P. - Polivka, M.: Cavity-Backed Path Antennas. In ICAP 97. IEE, 1997, p. 126-129. ISBN 0-85296-686-5.
  • Mazanek, M. - Polivka, M. - Pechac, P. - Skvor, Z.: Patch Antennas with Reduced Dimensions. In COMITE 1997. vol. 1, p. 112-115. ISBN 80-902417-0-0.
  • Mazanek, M. - Pechac, P. - Hajny, M. - Janik, J. - Kvicera, V. - et al.: Propagation Study for Microwave Radio Systems, XPD, Interferences, Absorptions. In 26 European Microwave Conference. 1996, p. 925-926. ISBN 1 899919 08 2.
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