New Physical Discrete UHF Multilayer Propagation Model for Urban Areas
Keywords:
Discrete model, path loss, urban areas, scattering, and multilayer propagation model.Abstract
In this paper, a newly developed discrete
multilayer propagation model using scattering theory is
studied using rectangular lossy multilayer dielectric
plates which model the walls, the streets, and avenues in
urban areas. The model is presented to study radio wave
propagation in street environments and to compare it with
previous theoretical and experimental studies. Good
agreements are found. Using the developed model, it is
possible to calculate the c ontributions of direct and
scattered wave separately. The simulations reveal that the
developed model can be applicable for a broad band of
frequencies. This model can be used effectively for
prediction of loss characteristics in a situation when two
antennas are located below the rooftops in conditions of
direct visibility.
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References
N. Blaunstein, Radio Propagation in Cellular Network,
Artech House Inc, Boston-London, 2000.
N. Blaunstein, “Average field attenuation in the
nonregular impedance street waveguide,” IEEE Trans.
on Anennas and Propagation , vol. 64, pp. 1782-1788,
Dec. 1998.
J. Walfisch and H. L. Bertoni, “A theoretical model of
UHF propagation in urban environments,” IEEE Trans.
on Antennas and Propagation, vol. AP-36, pp. 1788-
, Dec. 1988.
Y. P. Zhang, Y. Hwang, a nd J. D. Parsons, “UHF radio
propagation characteristics in a straight open-groove
structures,” IEEE Trans. on Vehicular Technology , vol.
, no. 1, pp. 249-254, Jan. 1999.
European Communities, COST231 Final Report, Digital
Mobile Radio Toward Future Generation Systems, pp.
-208, 1999.
D. Didascalou, Y. Venot, M. Döttling, and W.
Wiesbeck, “Modeling and measurements of EM-wave
propagation in the Berlin Subway,” in Millenium
Conference on Antennas&Propagation AP2000, Davos,
Switzerland, April 2000.
S. S. Seker and B. Altay, “Shielding properties of thin
curved surfaces,” Proc. IEEE EMC-96, Santa Clara,
USA, 1996.
S. S. Seker, “Radar cross section of thin dielectric
bodies,” Proc. IEE , vol. 133, no. 4, pp 305-307, Aug.
D. Paris and K. Hurd, Basic Electromagnetic Theory,
Mc Graw Hill Book Company, 1969.
G. Ruck, D. Barrick, W. Stuart, and C. Krichbaum,
Radar Cross-Section Handbook, vol. 1, Plenum Press,
New York, 1970.
H. Bussey and J. Richmond, “Scattering by a lossy
dielectric circular cylindrical multilayer numerical
values,” IEEE Trans. on Antennas and Propagation ,
vol. 23, no. 5, pp. 723-725, Sep. 1975.
C. Balanis, Advanced Engineering Electromagnetics,
Wiley and Sons, pp. 578, 1989.
A. J. Rustako, N. Amitay, G. J. Owens, and R. S.
Roman, “Radio propagation at microwave frequencies
for line-of-sight microcellular mobile and personal
communications,” IEEE Trans. on Vehicular
Technology, vol. 40, no. 1, pp. 203-210, Feb. 1991.
ERADS, “Expert Radar Signature Solutions, Common
Radar Materials” from World Wide Web <
http://stl.uml.edu/tools/scalemodel.html>.
J. Wait, Wave Propagation Theory, Pergamon Press,
New York, 1981.
