Abstract
In RCS measurement, usually the incident beam is a Gaussian beam or a similar beam source; however, in the theoretical RCS estimation, usually a plane wave is assumed as the incident beam for sake of simplicity. In this paper, the RCS of an infinite perfect conducting cylinder is estimated. In the estimation, the influence of a 2.52 THz laser beam on RCS is studied and the RCS in dependence with scattering angle and some other factors is obtained after the change of RCS equation; meanwhile, comparisons of RCS when the incident beam is a plane wave and a Gaussian beam respectively, are also given. The estimation results show, when the cylinder radius is 10 mm, choosing a beam width of 40 mm can keep the relative error less than 0.48 dB.
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References
Krzysztof Iwaszczuk, Henning Heiselberg, Peter Uhd Jepsen. “Terahertz Radar Cross Section Measurements,” Optics Express, 18(25), 26399–26408 (2010).
Q Li, Y-D Li, S-H Ding and Q Wang. “Terahertz Computed Tomography Using A Continuous-Wave Gas Laser,” J. Infrared Milli Terahz Waves, 33 (5): 548–558 (2012).
M. A. Salhi, I. Pupeza, and Martin Koch. “Confocal THz Laser Microscope,” J. Infrared Milli Terahz Waves, 31(3), 358–366 (2010).
E. Pickwell, and V. P. Wallace, “Biomedical Applications of Terahertz Technology,” J. Phys. D: Appl. Phys., 39, R301–R310 (2006).
Ralf Gente, Christian Jansen, Robert Geise et al., “Scaled bistatic radar cross section measurements of aircraft with a fiber-coupled THz time domain spectrometer,” IEEE Terahertz Sci. and Technol. 2, 424 (2012)
C. Jansen, N. Krumbholz, R. Geisb et al.. “Alignment and Illumination Issues in Scaled THz RCS Measurements,” 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz (2009).
Hyo J. Eom, Gui Y. Hur, Tah J. Park et al.. “Gaussian Beam Scattering from a Semicircular Boss above a Conducting Plane,” G. IEEE Trans. Antennas Propaga., 41(1), 106–108(1993).
H. Sakurai, M. Ohki, K. Motojima et al. “Scattering of Gaussian Beam from a Hemispherical Boss on a Conducting Plane,” IEEE Trans. Antennas Propaga., 52(3),892–894(2004).
W. C. Tasi and R. J. Pogorzelski. “Eigenfunction solution of the scattering of beam radiation fields by spherical objects,” Opt. Soc. Am., 65(12): 1457–1463 (1975)
W. G. Tam and R. Corriveau. “Scattering of electromagnetic beam by spherical objects,” J. Opt. Soc. Am., 68(6), 763–767 (1978)
NG Alexopoulos and PK Park “Scattering of waves with normal amplitude distribution from cylinders,” IEEE Trans. Antennas Propaga., AP-20, 216–217 (1972)
S. Kozaki. “A New Expressionf on the Scattering of a Gaussian Beamb by a Conducting Cylinder,” IEEE Trans. Antennas Propaga., AP-30(5): 881–887 (1982)
Li H-Y, Li Q, Xia Z-W et al. “Influence of Gaussian Beam on Conductor Cylinder Terahertz Radar Cross Section,” Chinese Journal of Lasers, 39(s1), s1110012 (2012).
Li H-Y, Li Q, Xia Z-W et al. “Influence of Gaussian Beam on Terahertz Radar Cross Section of a Conducting Sphere,” Journal of Infrared, Millimeter, and Terahertz Waves, 34, 88–96 (2013)
Eugene F. Knott., Radar Handbook: Chapter 14 Radar Cross Section (2008).
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Li, HY., Li, Q., Xue, K. et al. Research into Influence of Gaussian Beam on Terahertz Radar Cross Section of a Conducting Cylinder. J Infrared Milli Terahz Waves 34, 289–298 (2013). https://doi.org/10.1007/s10762-013-9962-x
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DOI: https://doi.org/10.1007/s10762-013-9962-x