Short Pulse Scattering Measurements on Conducting Cylindrical Cavities

  • Marc Piette
  • David Perrot


Since the founding paper of Crispin and Maffett 1 and that of Witt and Price 2 in the sixties, many authors have studied the plane wave scattering of a hollow circular cylinder with a Perfect Electric Conductor-termination, seen as a simplified model of a jet intake. A more realistic model of a jet intake has been later proposed by Moll and Seekamp 3, who designed the termination of the cylinder in the form of a multirowed bladed structure in order to represent the first stages of the jet engine. By regarding the duct as an excited waveguide and applying appropriate techniques that take into account the various modes propagating in the cavity, they predicted the monostatic RCS pattern as a function of the aspect angle for different termination depths. Their results show in particular that a short circuit termination for the cavity is generally a worst case in comparison with the idealized bladed structure with regard to the monostatic RCS. It is worth noting that these results refer only to the echo from the interior of the intake because the contribution from the exterior surfaces is not taken into account in the model.


Ground Plane Circular Waveguide Aspect Angle Aperture Area Cross Section Waveguide 


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  1. 1.
    J. Crispin Jr. and A. Maffett, Radar cross-section estimation for simple shapes, P roc.IEEE, 53: 833–848 (1965).CrossRefGoogle Scholar
  2. 2.
    H. Witt and E. Price, Scattering from hollow conducting cylinders, Proc.IEE, 115: 94–99 (1968).Google Scholar
  3. 3.
    J. Moll and R. Seecamp, Calculation of radar reflecting properties of jet engine intakes using a waveguide model, IEEE Trans. on Aerospace and Electronic Systems, 6–5: 675–683 (1970).ADSCrossRefGoogle Scholar
  4. 4.
    C. Huang, Simple formula for the RCS of a finite hollow circular cylinder, Electronics Letters 19: 854–856 (1983).ADSCrossRefGoogle Scholar
  5. 5.
    C. Lee, S. Lee and S. Chuang, Normal modes in an overmoded circular waveguide coated with lossy material, IEEE Trans. on Microwave Theory and Techniques 34: 773–785 (1986).ADSCrossRefGoogle Scholar
  6. 6.
    C. Lee and S. Lee, RCS of a coated circular waveguide terminated by a perfect conductor, IEEE Trans. on Antennas and Propagation 35: 391–398 (1987).ADSCrossRefGoogle Scholar
  7. 7.
    C. Chuang and P. Pathak, Ray analysis of modal reflection for three-dimensional open-ended waveguides, IEEE Trans. on Antennas and Propagation, 37: 339–346 (1989).ADSCrossRefGoogle Scholar
  8. 8.
    A. Moghaddar and E. Walton, Time-frequency distribution analysis of scattering from waveguide cavities, IEEE Trans. on Antennas and Propagation, 41: 677–1993 (1993).ADSCrossRefGoogle Scholar
  9. 9.
    R. Madonna, P. Scheno, G. Vilardi, C. Hum and J. Scannepieco, Scattering, resonance, creeping wave, travelling wave and all that: UWB measurements of various targets, in Ultra-wideband Short-Pulse Electromagnetics,H.Bertoni, L. Carin, L. Felsen, Plenum Press, New-York: 8391(1993).Google Scholar
  10. 10.
    M. Piette, Banc de mesure en régime transitoire de la signature radar d’objets tridimensionnels conception, développement et validation, Thèse de doctorat, Université Catholique de Louvain (1995).Google Scholar
  11. 11.
    M. Piette, E. Schweicher, A. Vander Vorst, Calibration of an impulse radar scattering range with conducting and dielectric canonical targets/995 IEEE AP-S Symposium and URSI Radio Science Meeting,Newport Beach, URSI Proceedings: 268.Google Scholar

Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • Marc Piette
    • 1
  • David Perrot
    • 2
  1. 1.Department TelecommunicationsRoyal Military AcademyBrusselsBelgium
  2. 2.Ecole Spéciale Militaire de Saint-Cyr CoëtquidanGuer CedexFrance

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