Publications 1993

  1. D.J. Cichon, Th. Kürner, W. Wiesbeck, "Modellierung der Wellenausbreitung in urbanem Gelände", Frequenz, Band 47, no. 1/2, pp. 2-11, 1993
  2. D.J. Cichon, Th. Kürner, "A new non-heuristic wave propagation model for urban macro cells", COST-231 TD(93) 32, Barcelona, Spain, Jan. 19-22, 1993
  3. D.J. Cichon, Th. Kürner, W. Wiesbeck, "Polarimetric aspects in antenna related superposition of multipath signals", Eighth International Conference on Antennas and Propagation ICAP'93, pp. 80-83, Edinburgh, UK, March 30 - April 2, 1993
  4. F. Rostan, G. Gottwald, E. Heidrich, "Wideband aperture-coupled microstrip patch array for satellite TV reception", Eighth International Conference on Antennas and Propagation ICAP'93, pp. 190-193, Edinburgh, UK, March 30 - April 2, 1993
  5. G. Gottwald, W. Wiesbeck, "Influence of mutual coupling and feed network on directivity and gain", Eighth International Conference on Antennas and Propagation ICAP'93, pp. 761-763, Edinburgh, UK, March 30 - April 2, 1993
  6. Th. Kürner, D.J. Cichon, W. Wiesbeck, "Wideband characterisation of personal communication networks by propagation models", Eigth International Conference on Antennas and Propagation ICAP'93, pp. 865-868, Edinburgh, UK, March 30 - April 2, 1993
  7. R.M. Jha, D.J. Edwards, W. Wiesbeck, "UTD analysis of the hyperoloic cylinders for applications to on board aircraft antennas", Eighth International Conference on Antennas and Propagation ICAP'93, pp. 959-962, Edinburgh, UK, March 30 - April 2, 1993
  8. F. Rostan, E. Heidrich, "Mehrlagige planare Antennenarrays für breitbandige Anwendungen", Proc. Mikrowellen und Optronik MIOP'93 International Conference, pp. 39-43, Sindelfingen, Germany, May 24-26, 1993
  9. E. Pillai, F. Rostan, W. Wiesbeck, "Entwicklung äquivalenter Ersatzschaltbilder für Durchkontaktierung im Frequenzbereich 1 - 20 GHz, Proc. Mikrowellen und Optronik MIOP'93 International Conference, pp. 307-311, Sindelfingen, Germany, May 24-26, 1993
  10. E. Pillai, E. Rostan, W. Wiesbeck, "The effects of inhomogenious substrates on high speed digital signal transmission", Proc. Mikrowellen und Optronik MIOP'93 International Conference, pp. 383-387, Sindelfingen, Germany, May 24-26, 1993
  11. D.J. Cichon, Th. Kürner, W. Wiesbeck, "Adaptive wave propagation models for cellular mobile communication systems", Proc. Mikrowellen und Optronik MIOP'93 International Conference, pp. 186-190, Sindelfingen, Germany, May 24-26, 1993
  12. Th. Kürner, D.J. Cichon, W. Wiesbeck, "Mikrowellenausbreitungsmodelle zur breitbandigen Funkkanalcharakterisierung", Proc. Mikrowellen und Optronik MIOP'93 International Conference, pp. 181-185, Sindelfingen, Germany, May 24-26, 1993
  13. B. Zimmermann, J. Kehrbeck, W. Wiesbeck, A. Tscherner, "Neuartiger Nah-bereichs-FM-CW-Radar-Sensor bei 24 GHz", Proc. Mikrowellen und Optronik MIOP'93 International Conference, pp. 409-413, Sindelfingen, Germany, May 24-26, 1993
  14. J. Kehrbeck, E. Heidrich, W. Wiesbeck, "Planares Mikrowellen Front-End zur berührungslosen Geschwindigkeitsmessung in Kraftfahrzeugen", Proc. Mikrowellen und Optronik MIOP'93 International Conference, pp. 610-614, Sindelfingen, Germany, May 24-26, 1993
  15. Ch. Bornkessel, H. Uhlmann, "Einfluß von Kammerasymmetrien auf die elektromagnetische Feldverteilung in EMV-Absorberkammern", Proc. Mikrowellen und Optronik MIOP'93 International Conference, pp. 439-443, Sindelfingen, Germany, May 24-26, 1993
  16. H.-U. Nickel, E. Borie, G. Dammertz, O. Dumbrajs, G. Gantenbein, M. Kuntze, A. Möbius, B. Piosczyk, M. Thumm, A. Wien, "Development of a 0.5 MW/140 GHz gyrotron oscillator for fusion plasma applications", Proc. Mikrowellen und Optronik MIOP'93 International Conference, pp. 423-427, Sindelfingen, Germany, May 24-26, 1993
  17. D. J. Cichon, N. Geng, "On polarimetry in multipath radio links," COST-231 TD (93) 82, Grimstad, Norway, May 25-28, 1993
  18. N. Geng, D. J. Cichon, "Prediction of the envelope correlation coefficient between diversity channels in mobile radio systems," COST-231 TD (93) 83 ,Grimstad, Norway, May 25-28, 1993
  19. T. Kürner, D. J. Cichon, "Comments on the COST-231 document (93)6: Comparison between different path loss prediction models," COST-231 TD (93) 81, Grimstad, Norway, May 25-28, 1993
  20. D. Hollmann, S. Haffa, F. Rostan, W. Wiesbeck, "The introduction of surface resistance in the three-dimensional finite-difference method in frequency domain", IEEE Transactions on Microwave Theory and Techniques, vol. 41, no. 5, pp. 893-895, May 1993
  21. E. Pillai, F. Rostan, W. Wiesbeck, "Derivation of equivalent circuits for via holes from full wave models", IEE Electonics Letters, vol. 29, no. 11, pp. 1026-1028, May 1993
  22. A. Froese, R. Speck, W. Wiesbeck, D. Kurzeja, M. Nold, M. Ebert, G. Staikov, W. Lorenz, M. Breiter, "Low- and high-frequency conductivities of RbAg4I5 and Agb"-alumina at low temperatures", Solid State Ionics - Diffusion & Reactions, Solid State Ionics 66(1993), North Holland, pp. 113-129
  23. F. Rostan, E. Heidrich, W. Wiesbeck, "Computer-aided design and measurement of planar microstrip antennas", TEMPUS Workshop on Computer Aided Methods and Technical Management in Electrical Engineering Education, Budapest, Hungary, June 16-18, 1993
  24. N. Geng, W. Wiesbeck, "Simulation of radio relay link performance and diversity improvement parameters using a deterministic 3D wave propagation model", COST-235 CP 159, Visby, Sweden, June 1993
  25. D.J. Cichon, Th. Kürner, W. Wiesbeck, "A new wave propagation model for urban and suburban macro cellular coverage prediction", Proc. IEEE International Antennas and Propagation Symposium AP'93, pp. 1073-1076, Ann Arbor, MI, USA, June 28 - July 2, 1993
  26. D.J. Cichon, K. Schmitt, "On multipath polarimetry in communication systems", Proc. IEEE International Antennas and Propagation Symposium AP'93, pp. 1284-1287, Ann Arbor, MI, USA, June 28 - July 2, 1993
  27. T. Kürner, "Charakterisierung digitaler Funksysteme mit einem breitbandigen Wellenausbreitungsmodell", Forschungsbericht aus dem Institut für Höchst-frequenztechnik und Elektronik der Universität Karlsruhe, Band 3, (Dissertation), ISSN 0942-2935, July 5, 1993
  28. E. Heidrich, W. Wiesbeck, "Extension of the polarisation scattering matrix concept to antennas as scatterers and radiator", PIERS-93, p. 384, JPL, Pasadena, USA, July 1993
  29. R. M. Jha, S. A. Borkhai, W. Wiesbeck, "A novel ray tracing on general paraboloids of revolution for UTD applications", IEEE Transactions on Antennas and Propagation, vol. 41, no. 7, pp. 934-939, July 1993
  30. Th. Kürner, D.J. Cichon, W. Wiesbeck, "Concepts and results for 3D digital terrain based wave propagation models - an overview", IEEE Journal on Selected Areas on Communications, vol. 11, no. 7, pp. 1002-1012, 1993
  31. D. J. Cichon, W. Wiesbeck, "3D wave propagation models for coverage prediction and radio channel characterization in communication systems," Proc. U.R.S.I. XXIV General Assembly, p. 558, Kyoto, Japan, August 25- September 2, 1993
  32. D. J. Cichon, W. Wiesbeck, "Polarimetry and diversity in mobile communication systems," Proc. U.R.S.I. XXIV General Assembly, p. 562, Kyoto, Japan, August 25- September 2, 1993
  33. F. Rostan, E. Heidrich, W. Wiesbeck, "Design of aperture-coupled patch antenna arrays with multiple dielectric layers", Proc. of the 23rd European Microwave Conference EuMC «93, pp. 917-919, Madrid, Spain, Sept. 6-9, 1993
  34. Th. Kürner, D.J. Cichon, T. Becker, "A receiver near range model for forested and urban areas", COST-231 TD(93) , Limerick, Ireland, Sept. 7-10, 1993
  35. D. J. Cichon, Th. Kürner, W. Wiesbeck, "Mobile radio wave propagation models for coverage prediction and radio channel characterization," Proc. IEEE International Conference PIMRC«93, pp. 196-200, Yokohama, Japan, September 9-11, 1993
  36. E. Heidrich, W. Wiesbeck, "Radarsignaturen von Antennen", Proc. of the 8. DGON- Radarsymposium, pp. 342-347, Neubiberg, Sept. 14-16, 1993
  37. E. Heidrich, F. Rostan, R. Zahn, "Dual polarised microstrip array for spaceborne SAR-application", Proc. of the 3rd International Conference on Electromagnetics in Aerospace Applications ICEAA «93, pp. 423-426, Torino, Italy, Sept. 14-17, 1993
  38. N. Geng, W. Wiesbeck, D. Hollmann, "Characterization of dielectric resonators - a comparision of different numerical methods", Proc. of the 3rd International Conference on Electromagnetics in Aerospace Applications ICEAA «93, pp. 167-170, Torino, Italy, Sept. 14-17, 1993
  39. Ch. Bornkessel, E. Heidrich, "Prediction and evaluation of anechoic chamber performance", A.M.T.A. 15th Annual Meeting and Symposium, pp. 379-384, Dallas, Texas, USA, Oct. 4-8, 1993
  40. N. Geng, W. Wiesbeck, "Simulation of radio relay link performance using a deterministic 3D wave propagation model", Proc. of the 4th European Conference on Radio Relay Systems, Edinburgh, UK, Oct. 11-14, 1993
  41. K. Jüttner, W. Wiesbeck, G. Staikov, W. J. Lorenz, "From UPD adlyers to electrodeposited thin films -an atomistic view-", Proc. of the International Conference on Surface Structure and Electrochemical Reactivity, Ulm, Germany, Oct. 11-15, 1993
  42. D. J. Cichon, T. Kürner, W. Wiesbeck, "3D ray optical propagation modelling in rural and urban environments and derived radio channel characterization," Proc. of the 3rd ESA European Workshop on Electromagnetic Compatibility and Computational Electromagnetics, pp. 344-349, Pisa, Italy, Oct. 26-28, 1993
  43. Ch. Bornkessel, W. Wiesbeck, "Evaluation of anechoic chamber performance by numerical field computation", Proc. of the 3rd ESA European Workshop on Electromagnetic Compatibility and Computational Electromagnetics, pp. 243-246, Pisa, Italy, Oct. 26-28, 1993
  44. E. Pillai, Ch. Bornkessel, W. Wiesbeck, "FDTD modelling of wirebond interconnects", Proc. of the 2nd Int. Workshop on Discrete Time Domain Modelling of Electromagnetic Fields and Networks, pp. 243-246, Berlin, Germany, Oct. 28-29, 1993
  45. H.-J. Blasberg, H.-U. Frehr, Dirk Hormann et al. (eds.), "Produktentwicklung und Qualitätsmanagement", ISBN 3-8007-1528-7, 138 pages, vde-verlag gmbh, Berlin, Offenbach, 1993
  46. J. Kehrbeck,"Mikrowellen-Doppler-Sensor zur Geschwindigkeits- und Wegmessung - System-Modellierung und Verifikation", Dissertation, Universität Karlsruhe, Karlsruhe, 1993
  47. Ch. Bornkessel, "Analyse und Optimierung der elektrodynamischen Eigenschaften von EMV-Absorberkammern durch numerische Feldberechnung", Dissertation, Universität Karlsruhe, Karlsruhe, 1993
  48. Piosczyk, B., M. Kuntze, E. Borie, G. Dammertz, O. Dumbrajs, G. Gantenbein, A. Möbius, H.-U. Nickel, M. Thumm, "Development of high power 140 GHz gyrotrons at KfK for applications in fusion", Fusion Technology 1992, eds. C. Ferro, M. Gasparotto, H. Knoepfel. Elsevier Science Publishers B.V.,pp. 618-622, 1993
  49. M. Thumm, "Progress in the development of high-power millimeter- and sub-millimeter wave gyrotrons and of free electron masers", Archiv für Elektrotechnik 77, 51-55 ( 1993)
  50. A. Möbius, M. Thumm, "Gyrotron output launchers and output tapers" in Gyrotron Oscillators - Their Principles and Practice, C. Edgcombe, ed., Taylor & Francis, chapter 7, pp.179-222, London, l993
  51. G. Gantenbein, M. Thumm, "Experimental perfomance of 140 GHz gyrotrons", in Gyrotron Oscillators - Their Principles and Practice, C. Edgcombe, ed., Taylor & Francis, chapter 8, pp. 223-255, London, 1993
  52. H.-U. Nickel, Geist, T., "Diagnostics and instrumentation for millimetre-wave gyrotrons" in Gyrotron Oscillators - Their Principles and Practice, C. Edgombe, ed., Taylor & Francis, chapter 12, pp.327-364, London, 1993
  53. M. Thumm, "High-power microwave transmission systems, external mode converters and antenna technology", in Gyrotron Oscillators - Their Principles and Practice, C. Edgcombe, ed., Taylor & Francis, chapter13, pp. 365-401, London, 1993,
  54. H.-U. Nickel, H. Massler, M. Thumm, "Broadband windows for high-power millimeter waves - Developments at KfK and considerations for the FOM-Fusion-FEM", Proc. 3rd Workshop on FEM-Millimeter Waves, pp.217-256, Nieuwegein, Netherlands, 1993
  55. H.-U. Nickel, E. Borie, G. Dammertz, O. Dumbrajs, G. Gantenbein, M. Kuntze, A.Möbius, B. Piosczyk, M. Thumm, A. Wien, "Development of a 0.5 MW/ 140 GHz gyrotron oscillator for fusion plasma applications", Proc. 7th Conf. on Microwaves and Optronics (MIOP '93), pp. 423-427, Sindelfingen, Germany, 1993
  56. M. Thumm, B. Piosczyk: "Fortschritte bei der Entwicklung von Hochleistungs-Millimeter- und Submillimeter-Wellen Gyrotrons und von Frei-Elektronen-Masern", ITG (VDE)-Workshop: Terahertz/Submillimeter-Wave-Technology, Paper 11, Sindelfingen, Germany, 1993
  57. M. Kuntze, G. Gantenbein, E. Borie, G. Dammertz, A. Möbius, H.-U. Nickel, B. Piosczyk, M.Thumm: "Frequency step-tunable 0.5 MW, 140 GHz gyrotron for fusion plasma applications", Proc. 20th IEEE Int. Conf. on Plasma Science, Contributed Paper 5D1, Vancouver, 1993
  58. W. Kasparek, G.A. Müller, P.G. Schüller, V. Erckmann, T Geist,H.-U. Nickel, M. Thumm,A.A. Borschegovsky, V.I. Ilin, I.N. Roy, G.G. Denisov, V.I. Hiznyak, A.N. Kuftin, V.I. Malygin, V.E. Zapevalov, S.D. Bogdanov, V.I. Kurbatov, S.A. Malygin, V.B. Orlov: "Overview on W7-AS results with 140 and 70 GHz", Proc. 5th Joint Russian-German Meeting on ECRH and Gyrotrons, pp.111-140, Garching - Stuttgart - Karlsruhe, 1993
  59. W. Kasparek, G.A. Müller, P.G. Schüller, V. Erckmann, T Geist, H.-U. Nickel, M. Thumm, A.A. Borschegovsky, V.I. Ilin, I.N. Roy, G.G. Denisov, V.I. Hiznyak, A.N. Kuftin, V.I. Malygin, V.E. Zapevalov, S.D. Bogdanov, V.I. Kurbatov, S.A. Malygin, V.B. Orlov, "Experimental experience with the quasi-optical ECRH transmission systems on W7-AS and recent developments", Proc. 5th Joint Russian-German Meeting on ECRH and Gyrotrons, pp.289-306, Garching - Stuttgart - Karlsruhe, 1993
  60. G. Gantenbein, E. Borie, G. Dammertz, M. Kuntze, H.-U. Nickel, B. Piosczyk, M.Thumm: "Frequency step-tunable 0.5 MW, 140 Ghz TEn,4 gyrotron (n=9,10,11)", Proc. 5th Joint Russian-German Meeting on ECRH and Gyrotrons, pp.375-388, Garching - Stuttgart - Karlsruhe, 1993
  61. H.-U. Nickel, H. Massler, M. Thumm, "Broadband windows for gyrotrons and other sources of high-power millimeter waves", Proc 5th Joint Russian-German Meeting on ECRH and Gyrotrons, pp. 457-478, Garching - Stuttgart - Karlsruhe, 1993,
  62. A. Möbius, J. Pretterebner, M. Thumm, "Compact quasi-optical TE22,6 to TEM00 converter with feed waveguide deformations", Proc. 5th Joint Russian-German Meeting on ECRH and Gyrotrons, pp.545-553, Garching - Stuttgart - Karlsruhe, 1993
  63. D. Wagner,J. Pretterebner, M. Thumm, "Design of coaxial gyrotron cavities using a scattering matrix code", Proc. 5th Joint Russian-German Meeting on ECRH and Gyrotrons, pp.555-565, Garching - Stuttgart - Karlsruhe, 1993
  64. A.G.A. Verhoeven, W.A. Bongers, B.S.Q. Elzendoorn, Pl Mantintveld, F.C. Schüller, A. Tulupov, M.J. van der Wiel, W.H. Urbanus, V. L. Bratman, G.G. Denisov, A.V. Savilov, M.Yu. Shemelyov, H.-U. Nickel, M. Thumm, W. Kasparek, J. Pretterebner, D. Wagner, M. Caplan, C. Shang, "The FOM-FUSION-FEM as a tunable ECRH source", Proc. 2nd Int. Workshop on Strong Microwaves in Plasmas, Invited Paper S5, Nizhny Novgorod, 1993
  65. M. Thumm, E. Borie, G. Dammertz, G. Gantenbein, M. Kuntze, A. Möbius, H.-U. Nickel, B. Piosczyk, A. Wien, "Development of high-power 140 GHz gyrotrons for fusion Plasma applicatons", Proc. 2nd Int. Workshop on Strong Microwaves in Plasmas, Invited Paper S8, Nizhny Novgorod, 1993
  66. O. Dumbrajs, M. Thumm, "Mode selection, magnetic field tapering, and resonator design for an industrial gyrotron", Proc. 2nd Int. Workshop on Strong Microwaves in Plasmas, Contributed Paper S18, Nizhny Novgrorod, 1993
  67. G.G. Denisov, V. Erckmann, A.A. Fraiman, T. Geist, E. Holzhauer, V.N. Isaev, W. Kasparek, A. G. Litvak, LV. Lubyako, G.A. Müller, H.-U. Nickel, P.G. Schüller, O.B. Smolyakova, E.V. Suvorov, M. Thumm, "Collective scattering of powerful gyrotron radiation at W7-AS", Proc. 2nd Int. Workshop on Strong Microwaves in Plasmas, Contributed Paper H19, Nizhny Novgrorod, 1993
  68. M. Thumm, "Progress in development of high power gyrotrons", 18th Int. Conf. on Infrared and Millimeter Waves, Proc. SPIE 2104, pp.6-7, Colchester (Essex, UK), 1993
  69. A.G.A. Verhoeven, W.A. Bongers, B.S.Q. Elzendoorn, A.M. van Ingen, P. Manintveld, A. Tulupov, M.J. van der Wiel, W.H. Urbanus, V.L. Bratman, G.G. Denisov, A.V. Savilov, M.YU. Shmelyov, H.-U. Nickel, M. Thumm, W. Kasparek, J. Pretterebner, D. Wagner, C. Shang, M. Caplan, "Status of the design of the 200 GHz FOM-Fusion-FEM", 18th Int. Conf. on Infrared and Millimeter Waves, Proc. SPIE 2104, pp. 19-20, Colchester (Essex, UK), 1993
  70. H.-U. Nickel, H. Massler, M. Thumm, "Development of broadband vacuum windows for high-power millimeter wave systems", 18th Int. Conf. on Infrared and Millimeter Waves, Proc. SPIE 2104, pp. 172-173, Colchester (Essex, UK), 1993
  71. C.C. Shang, M. Caplan, H.-U. Nickel, M. Thumm, "Electrical analysis of wideband and distributed windows using time-dependent field codes", 18th Int. Conf. on Infrared and Millimeter Waves, Proc. SPEI 2104, pp. 178-179, Colchester (Essex, UK), 1993
  72. J. Pretterebner, A. Möbius, M. Thumm, A. Wien, "Compact quasi-optical TE22-6 to TEM00 converter with feed waveguide deformations", 18th Int. Conf. on Infrared and Millimeter Waves, Proc. SPIE 2104, pp.322-323, Colchester (Essex, UK), 1993
  73. D. Wagner, J. Pretterebner, M. Thumm, "Mode coupling in overmoded, varying radius coaxial gyrotron cavities", 18th Int. Conf. on Infrared and Millimeter Waves, Proc. SPIE 2104, pp. 326-327, Colchester (Essex, UK), 1993
  74. K. Xu, M. Thumm, "Advanced complex cavity for multi-megawatt gyrotron", 18th Int. Conf. on Infrared and Millimeter Waves, Proc. SPIE 2104, pp. 332-333, Colchester (Essex, UK), 1993
  75. D. Wagner, J. Pretterebner, M. Thumm, "Transverse resonances in oversized waveguides", 18th Int. Conf. on Infrared and Millimeter Waves, Proc. SPIE 2104, pp. 422-423, Colchester (Essex, UK), 1993
  76. E. Borie, G. Dammertz, G. Gantenbein, M. Kuntze, A. Möbius, H.-U. Nickel, B. Pioscyk, M. Thumm, "0.5 MW/140 GHz TE10,4 Gyrotron with built-in highly efficient quasi-optical converter", 18th Int. Conf. on Infrared and Millimeter Waves, Proc. SPIE 2104, pp. 519-520, Colchester (Essex, UK), 1993
  77. M. Thumm, "Recent advanced technology in electron cyclotron heating systems", Proc. 5th Int. Toki Conf. on Plasma Physics and Controlled Nuclear Fusion (ITC-5) - Physics and Technology of Plasma Heating and Current Drive, Invited Paper 17-I-1, Toki, Japan, 1993
  78. G. Gantenbein, "Theoretische und experimentelle Untersuchungen zu Leistungsgyrotrons mit asymetrischen Moden hoher Ordnung", (Dissertation), Universität Karlsruhe, IHE, June 15.,1993
  79. A. Quellmaltz, "Graphenorientierte Planung von Sendernetzen", (Dissertation) Universität Karlsruhe, IHE, July 07.,1993
  80. V. Ziegler, "Radarpolarimetrische Verfahren zur erd- und satellitengestützten Niederschlagserkundung", (Dissertation) Universität Karlsruhe, IHE, Oct. 19.,1993