Teorie elektromagnetického pole
Vlny a vedení
Numerické metody pro řešení elektromagnetických polí
Vybrané partie z matematiky
Metody analýzy pasivních prvků mikrovlnné a milimetrové techniky (pro doktorandy)

Vybrané publikace

Kučera L., Macháč J., Mišek J.: Effect of feedback carrier excitation on LED external quantum efficiency, IEE Proc. Solid-State and Electron Devices, Pt. I, Vol. 129, No. 1, 1982, p. 28.
Macháč J.: A static model of DH laser, IEE Proc. Solid-State and Electron Devices, Pt. I, Vol. 130, No. 2, 1983, p. 61.
Macháč J.: Impulse response of partially depleted p-i-n photodiode, Journal of the Institute of Electronics and Telecommunication Engineers (India), vol. 32, No. 1, 1986, p. 28.
Kadlec J., Macháč J.: Oscillator analysis with respect to higher harmonics, Archiv für Elektrotechnik (Springer International), vol. 76, No. 3, 1993, pp. 243-248.
Macháč J.: Analysis of discontinuities in waveguiding structures by MAB method, IEE Proc. Part.H, vol. 139, No. 4, August 1992, pp. 351-357.
Macháč J., Menzel W.: On the design of waveguide-to-microstrip and waveguide-to-coplanar line transitions, 23rd European Microwave Conference, Madrid 1993, pp. 615-616.
Menzel W., Macháč J.: Waveguide bandpass filters with attenuation of higher-order passbands, 23rd European Microwave Conference, Madrid 1993, pp. 606-607.
Macháč J., Zehentner J.: Leaky Waves on a Slot Line, Proceedings of the 1995 International Symposium on Electromagnetic Theory - URSI. St. Petersburg, May 1995, pp. 761-763.
Macháč J., Zehentner J., Menzel W.: Short and Open Circuited Slot Line, 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Proceedings. Rio de Janeiro, July 1995, Vol. 2, pp. 856-861.
Macháč J., Zehentner J., Menzel W.: Load Impedances of Complex Slotline Terminations, 25th European Microwave Conference Proceedings, Bologna, September 1995, pp. 610-614.
Macháč J., Zehentner J., Menzel W.: Complex Resonant Frequency of Short-Circuited Slot Line Resonator, 40 Internationales Wissenschaftliches Kolloquium. Ilmenau, September 1995, Band 2, pp. 255-259.
Macháč J., Zehentner J.: Utilizable Frequency Band and Leaky Wave Phenomenon of the Slotline, XI Intenational Microwave Conference MIKON 96, Warszawa, May 1996, Vol. 1, pp. 193-197.
Macháč J., Zehentner J.: Leakage Effects of Dominant and Higher Order Modes on Slotline, 26th European Microwave Conference Proceedings, Prague, September 1996, Vol. 2, pp. 880-884.
Zehentner J., Macháč J., Migliozzi M.: Upper Cut-Off Frequency of the Bound Wave and New Leaky Wave on the Slotline, 1997 IEEE MTT-S IMS Digest, Denver, June 1997, pp. 487-490.
Zehentner J., Macháč J., Migliozzi M.: Evolution of New Real and Complex Improper Solutions of the Slotline Dispersion Equation, 27th European Microwave Conference Proccedings, Jerusalem. September 1997, Vol. 2, pp. 1264-1269.
Zehentner J., Macháč J., Migliozzi M.: Performance of the slotline in the mm-wave range, XII. International Microwave Conference MIKON-98, Krakov, Poland, May 1998, Proccedings Vol. 2, pp. 481-485.
Zehentner J., Macháč J., Migliozzi M.: Leakage into several surface waves on open planar transmission lines, URSI 1998 International Symposium on Electromagnetic Theory, Thessaloniki, Greece, May 1998, Proccedings Vol. 2, pp. 500-502, Invited paper.
Zehentner J., Macháč J., Migliozzi M.: Dispersion characteristics of leaky waves on lossless and lossy slotlines, 1998 IEEE MTT-S International Microwave Symposium, Baltimore, Maryland, USA, June 1998, Proccedings Vol. 3, pp. 1795-1798.
Zehentner J., Macháč J., Migliozzi M.: Upper cut-off frequency of the bound wave and new leaky wave on the slotline, IEEE Trans. Microwave Theory and Techn., vol. MTT-46, No. 4, Apr. 1998, pp. 378-386.
Zehentner J., Macháč J., Mrkvica J., Polívka J., Sarnowski M.: Radiometric detection of surface leaky waves, The 43rd International Scientific Colloquium, Technical University of Ilmenau, Germany, September 1998, Proccedings Vol. 3, pp. 295-300.
Zehentner J., Macháč J., Sarnowski M., Mrkvica J., Polivka J.: Surface leaky waves and their measurement, Proceedings of the 28th European Microwave Conference, Amsterodam, Netherlands, October 1998, Vol. 2, pp. 561-564.
Zehentner J., Macháč J., Mrkvica J., Sarnowski M., Polívka J.: Field mapping by active radiometry, Proccedings of the 1998 Asia-Pacific Microwave Conference, Yokohama, Japan, December 1998, Vol. 1, pp. 217-220.
Macháč J., Zehentner J., Migliozzi M.: Coplanar line in millimetre and submillimetre wave range, 10th MICROCOLL, Budapest, Hungary, March 1999, Proceedings pp. 397-400.
Zehentner J., Macháč J., Mrkvica J., Vacek P., Polívka J.: Spurious leaky mode solutions and experimental verification of the second leaky wave, 1999 IEEE MTT-S International Microwave Symposium Digest, Anaheim, CA, USA, June 1999, Vol. 3, pp. 1261-1264.
Macháč J., Zehentner J.: Space leakage of power from uniplanar transmission lines, Mikon 2000, XIII International Conference on Microwaves, Radar and Wireless Communications, Wroclaw, Poland, May 2000, Proceedings Vol. 2, pp. 565-568.
Zehentner J., Macháč J.: Properties of CPW in the sub-mm wave range and its potential to radiate, 2000 IEEE MTT-S International Microwave Symposium Digest, Boston, MA, USA, June 2000, Vol. 2, pp. 1061-1064.
Macháč J., Zehentner J.: Leaky waves and conditions for exciting them on uniplanar transmission lines, Proceedings of PIERS 2000, Progress in Electromagnetics Research Symposium, Cambridge, MA, USA, July 2000, pp. 235, Invited paper.
Zehentner J., Macháč J.: New space leaky wave spectrum components on the slotline, Proceedings of the 30th European Microwave Conference, Paris, France, October 2000, Vol. 2, pp. 190-193.
Macháč J., Zehentner J.: Leaky waves of the second order on the slotline, Proceedings of the 2001 URSI International Symposium on Electromagnetic Theory, Victoria, BC, Canada, May 2001, pp. 532-534.
Zehentner J., Macháč J., Lorenz P.: Space leakage of power from the slotline, 2001 IEEE MTT-S International Microwave Symposium Digest, Phoenix, AZ, USA, May 2001, Vol. 2, pp. 1217-1220.
Zehentner J., Macháč J., Lorenz P., Mrkvica J.: Planar Slot-Patch Antenna, Proceedings of the 31st European Microwave Conference, London, UK, September 2001, Vol. 3, pp. 223-226.
Zehentner J., Macháč J., Lorenz P., Mrkvica J.: Leaky Wave Radiation of a Printed Slotline Antenna, Proceedings of 2001 Asia - Pacific Microwave Conference, Taipei, Taiwan, R. O. C., Dec. 2001, Vol. 3, pp. 1175-1178.
Macháč J., Zehentner J.: Comments on Representation of Surface Leaky Waves on Uniplanar Transmission Lines, IEEE Trans. Microwave Theory and Techn., vol. MTT-50, No. 2, Feb. 2002, pp. 583-585.
Macháč J., Zehentner J., Lorenz P., Mrkvica J.: Wide-Slotted Printed Slotline Radiator, Proceedings of MIKON 2002, XIV International Conference on Microwaves, Radar and Wireless Communications, Gdansk, Poland, May 2002, Vol. 1, pp. 226-229.
Zehentner J., Macháč J., Mrkvica J.: Novel Selected Modes on the Conductor - Backed Slotline, 2002 IEEE MTT-S International Microwave Symposium Digest, Seattle, Wash., USA, June 2002, Vol. 2, pp. 961-964.
Zehentner J., Macháč J., Mrkvica J.: Even and Odd Modes on a Conductor - Backed Slotline, Proceedings of the 32nd European Microwave Conference, Milan, Italy, September 2002, Vol. 3, pp. 609-612.
Zehentner J., Macháč J., Mrkvica J., Hruska J., Langer V., Zabloudil P.: Experimental Verification of Theoretically Revealed Modes on the Conductor - Backed Slotline, Proceedings of 2002 Asia - Pacific Microwave Conference, Kyoto, Japan, Nov. 2002, Vol. 2, pp. 1200-1203.
Zehentner J., Macháč J., Mrkvica J., Tuzi C.: Modes on the Standard and Inverted Conductor-Backed Slotline, 2003 IEEE MTT-S International Microwave Symposium Digest, Philadelphia, Pa., USA, June 2003, Vol. 2, pp. 677-680.
Zehentner J., Macháč J., Mrkvica J., Tuzi C.: The Inverted Conductor-Backed Slotline - a Challenge to Antenna and Circuit Design, Proceedings of the 33rd European Microwave Conference, Munich, Germany, October 2003, Vol. 1, pp. 73-76.
Zehentner J., Macháč J.: Guided and Leaky Modes on Slotted Planar Transmission Lines, PIERS 2003 Progress in Electromagnetics Research Symposium, Honolulu, HI, USA, October 2003, Invited paper.
Macháč J., Zehentner J., Mrkvica J.: Visualization of leaky waves on planar transmission lines, Mikon 2004, XV International Conference on Microwaves, Radar and Wireless Communications, Warszawa, Poland, May 2004, Proceedings Vol. 3, pp. 820-823.
Zehentner J., Macháč J., Langer V., Hudlička M., Švorčík V., Slepička P., Drbohlav I.: Experimental exploration of gold sputtered layer behaviour at microwave frequency, EMFM' 2004, XVII International Conference on Electromagnetics Fields and Materials, Warszawa, Poland, May 2004, Proceedings Vol. 1, pp. 105-108.
Zehentner J., Mrkvica J., Macháč J.: Analysis and design of open planar transmission lines, East-West Workshop Advanced Techniques in Electromagnetics, Warszawa, Poland, May 2004.
Macháč J., Zehentner J.: Radiation from the conductor-backed slotline, Proceedings of the 2004 URSI International Symposium on Electromagnetic Theory, Pisa, Italy, May 2004, Vol. 1, pp. 162-164.
Zehentner J., Macháč J., Mrkvica J.: Dispersion characteristics of the dominant mode on a completely shielded conductor-backed slotline, 2004 IEEE MTT-S International Microwave Symposium Digest, Fort Worth, Tex., USA, June 2004, Vol. 2, pp. 507-510.
Zehentner J., Mrkvica J., Macháč J.: Waveguide with a Partition in the H-Plane Analyzed by the Spectral Domain method, PIERS 2004 Progress in Electromagnetics Research Symposium, Nanjing, China, August 2004, Proceedings p. 142.
Macháč J.,Zehentner J., Hruška J.: Conductor-Backed Slotline Antenna, Proceedings of the 34th European Microwave Conference, Amsterdam, Netherlands, October 2004, Vol. 2, pp. 1205-1208.
Zehentner J., Mrkvica J., Macháč J.: Spectral Domain Analysis of Open Planar Transmission Lines, Microwave Review, Vol. 10, No. 2, Nov. 2004, pp. 36-42.
Macháč J., Hudlička M., Zehentner J., Spiliotis N. G., Omar A. S: Left-Handed Coplanar Waveguide, 2005 IEEE MTT-S International Microwave Symposium Digest, Long Beach, Ca., USA, June 2005, TH4F-5.
Zehentner J., Macháč J., Mrkvica J.: Flat Waveguide with a Longitudinal Slot, 2005 IEEE MTT-S International Microwave Symposium Digest, Long Beach, Ca., USA, June 2005, TH4C-4.
Macháč J., Hudlička M., Zehentner J., Spiliotis N. G., Omar A. S: Coplanar Waveguide Transmitting a Left-Handed Wave, Proceedings of the 35th European Microwave Conference, Paris, France, October 2005, pp. 139-140.
Macháč J., Buchar P., Zehentner J., Omar A. S: New Bulk Metamaterial, Proceedings of the 35th European Microwave Conference, Paris, France, October 2005, pp. 713-716.
Zehentner J., Mrkvica J., Macháč J.: Fourier Transformation and Boundary Conditions in the Spectral Domain, PIERS 2005 Progress in Electromagnetics Research Symposium, Hnagzhou, China, August 2005, pp. 422.
Zehentner J., Macháč J., Mrkvica J.: Planar Transmission Lines in MW and MMW Circuits, 7th International Conference on Telecommunications in Modern Satelite, Cable and Bradcasting Services - TELSKIS 2005, Nis, Serbia and Monte Negro, September 2005, pp. PIII-PXI, Invited paper.
Zehentner J., Macháč J., Mrkvica J.: Planar Slotted Lines with Finite Width of the Substrate, XXIII General Assembly of International Union of Radio Science (URSI),New Delhi, India, October 2005, B07.5(0402).pdf, CD Rom
Macháč J., Hruska, J., Zehentner J.: Slotline Leaky Wave Antenna with a Stacked Substrate, PIERS 2006 Progress in Electromagnetics Research Symposium, Cambridge, USA, March 2006, pp. 283-287.
Buchar P., Macháč J., Zehentner J., Slepička P., Svorčík V.: Reflection from a Gold Sputtered Thin Layer, MIKON 2006 - XVI International Conference on Microwaves, Radar and Wireless Communications, Krakow, Poland, May 2006, Vol. 2, pp. 641-644.
Zehentner J., Macháč J., Zabloudil P.: Low Profile Slotted Flat Waveguide Leaky Wave Antenna,2006 IEEE MTT-S International Microwave Symposium Digest, San Francisco, Ca., USA, June 2006, TH1A, pp. 1303-1306.
Balalem A., Hamad E., Macháč J., Omar A.: Bandpass Filters on a Modified Multilayer Coplanar Line, 2006 IEEE MTT-S International Microwave Symposium Digest, San Francisco, Ca., USA, June 2006, WE2A, pp. 531-534.
Macháč J.: Microstrip line on an artificial dielectric material, IEEE Microwave and Wireless Components Letters, Vol. 16, No. 7, pp. 416-418, July 2006.
Macháč J., Buchar P., Zehentner J., Omar A. S.: 1 D Volume Metamaterial Derived from LH Parallel Strips, Journal of the Europen Microwave Association. 2006, Vol. 2, No. 2, pp. 84-88.
Hudlička M., Macháč J., Nefedov I. S.: A Triple Wire Medium as and Isotropic Negative Permittivity Metamaterial. Progress In Electromagnetics Research [online]. 2006, Vol. 2006, No. 65, pp. 233-246. Internet: http://ceta.mit.edu/PIER.
Zehentner J., Macháč J., Zabloudil P.: Use of Nano-Grids in a Waveguide, 36th European Microwave Conference, Manchester, September 2006 [CD-ROM]. Piscataway: IEEE, 2006.
Zehentner J., Macháč J., Zabloudil P.: Power Control in Passive Waveguide Circuits, Asia Pacific Microwave Conference 2006, Dec. 12-15 2006, Jokohama, Japan, THOF-48, sborník Vol. 2, pp. 1337-1340.
Jelínek L., Baena J., Macháč J., Marques R., Zehentner J.: Isotropic magnetic metamaterials composed of periodically and pseudorandomly elements, Young Scientist Meeting on Metamaterials, Seville 2006, Nov. 2006, sborník pp. 54-70.
Balalem A., Ali A. R., Machac J., Omar A.: Quasi-Elliptic Microstrip Low-Pass Filters Using an Interdigital DGS Slot, IEEE Microwave and Wireless Components Letters, Vol. 17, No. 8, August 2007, pp. 586-588, IF 1,424.
Jelínek L., Macháč J., Zehentner J.: A Magnetic Material Composed of Randomly Oriented SRRs, PIERS 2007, March 2007, Beijing, China, CD ROM, pp. 474-477.
Buchar P., Macháč J., Zehentner J.: VA Characteristics of Gold-Polystyrene-Gold Structures, 18th International Conference on Electromagnetic Fields and Materials, May 2007, Budapest, Hungary, CD-ROM.
Macháč J., Protiva P., Zehentner J.: Isotropic ypsilon-negative particles, 2007 IEEE MTT-S International Microwave Symposium, Honolulu, Hi., USA, June 2007, TH4D-03, CD ROM.
Protiva P., Macháč J., Zehentner J.: Particle for an Isotropic Metamaterial with Negative Permittivity, EMTS 2007 – International URSI Commision B Electromagnetic Theory Symposium, July 2007, Ottawa, Canada, CD-ROM.
Boutejdar A., Elsterbini A., Balalem A., Macháč J., Omar A.: Design of New DGS Hairpin Microstrip Bandpass Filter Using Coupling Matrix Method, PIERS 2007, August 2007, Prague, Czech Republic, CD-ROM, p. 173.
Zehentner J., Macháč J., Zabloudil P.: Novel Entire Top Surface Planar Leaky Wave Antenna, 37th European Microwave Conference, October 2007, Munchen, Germany, CD-ROM, pp. 372-375.
Hudlička M., Macháč J.: Triple Wire Medium for Use in Isotropic Metamaterials, 37th European Microwave Conference, October 2007, Munchen, Germany, CD-ROM, pp. 628-631.
Buchar P., Macháč J., Zehentner J.: Microwave reflectivity from gold sputtered nanolayer, IEEE Transactions on Nanotechnology, Vol. 6, No. 6, November 2007, pp. 645-651.
Zehentner, J. - Macháč J.: Volumetric Single Negative Metamaterials, Metamaterials 2007, October 2007, Roma, Italy, CD-ROM, str. 617-620.
Balalem A., Macháč J., Omar A.: Microstrip-CPW bandpass filter for antenna application, Microwave and Optical Technology Letters, Vol. 50, No. 1, January 2008, pp. 51-55.
Balalem A., Menzel W., Macháč J., Omar A.: A simple ultra-wideband suspended stripline bandpass filter with very wide stop-band, IEEE Microwave and Wireless Components Letters, Vol. 18, No. 3, pp. 170-172, March 2008.
Balalem A., Macháč J., Omar A.: Low-loss doubly metalized CPW low-pass filter with additional transmission zeros, Microwave and Optical Technology Letters, Vol. 51, No. 3, May 2008.
Balalem A., Macháč J., Omar A.: Dual-band bandpass filter by using square loop dual-mode resonator, Microwave and Optical Technology Letters, Vol. 51, No. 2008.
Macháč J., Pavliš A., Houška M., Zehentner J.: Planar Version of A Slotline Leaky Wave Antenna with a Stacked Substrate, MIKON 2008 - XVI International Conference on Microwaves, Radar and Wireless Communications, Wroclaw, Poland, May 2008.
Zehentner, J. - Macháč J.: Widening the negative effective parameter frequency band of resonant SNG metamaterials, PIERS 2008, Progress in Electromagnetics Research Symposium, Hangzhou, China, March 2008, Proc. (CD) pp. 381-386.
Machac J., Zehentner J., Blaha M.: Coupling of split ring resonators in a mu-negative volumetric metamaterial, 2008 IEEE MTT-S International Microwave Symposium, Atlanta, Ga., USA, June 2008.

Členství

člen Technického a programového výboru Evropské mikrovlnné konference v letech 1995-1997
sekretář 26. Evropské mikrovlnné konference 1996 v Praze
člen Společnosti pro radioelektronické inženýrství
člen České elektrotechnické společnosti (ČES)
člen výboru České elektrotechnické společnosti
místopředseda České elektrotechnické společnosti
předseda výboru Ústřední odborné skupiny Mikrovlnná technika ČES
Senior Member IEEE
člen výboru Československé sekce IEEE
člen komise MTT-S Administrative Committee „Member Ship Services“
MTT Society Region 8 Vice-coordinator
člen Technického a programového výboru 2004 URSI International Symposium on Electromagnetic Theory
člen Technického a programového výboru IEEE MTT-S International Microwave Symposium

A research assistantship is available at the Department of electromagnetic field of the Czech Technical University in Prague. The position is suitable for an excellent final year student interested in field theory and its applications in mw and mmw techniques working towards an M.S. degree or for a postgraduate student working toward a Ph.D. degree. The research area is investigation of uniplanar transmission lines in the mm-wave band and modelling of their circuit discontinuities, periodic structures and materials with negative permittivity and permeability. The work, usually lasting five months, can begin by agreement at any time within the years 2004 - 2005. The Faculty of Electrical Engineering of the CTU grants a scholarship of 6000 Czech Crowns per month to meet living costs (accommodation and catering in a students' hall, season ticket for urban transport, pocket money, etc). The candidate will provide only his/her insurance and fare to Prague.

Prague, the capital of the Czech Republic, has a population of 1.2 million and its history goes back to the 9th century beginnings of the present-day Prague Castle. The town is spread on both banks of the river Vltava, which is bridged 18 times within the city. Prague has several hills and over 500 spires. Its parks and gardens are accompanied by woods and nature reserves in the outlying areas. The city has a total of 2191 culturally significant buildings, including 27 permanent theaters, 23 cinemas, 16 museums with 34 extension branches, 130 galleries and exhibition halls. I look forward to hearing from new fellows who would like to enhance their professional qualifications, to gain higher degree, and spend some time in „Golden Prague“.

Jan Macháč

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