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Frequency‐induced angular sweep of the electromagnetic wave diffracted by weakly curved periodic media in the dynamical regime

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3 Author(s)
Melone, S. ; Dipartimento di Scienze dei Materiali e della Terra, Sezione Fisica, Università di Ancona, and Istituto Nazionale di Fisica della Materia, Via Brecce Bianche I‐60131, Ancona, Italy ; Francescangeli, O. ; Caciuffo, R.

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The effects connected with the dynamical scattering of electromagnetic waves by weakly curved periodic layered media are discussed. A simple physical model is used to take into account the effects of the curvature in the framework of the dynamical theory of diffraction. A peculiar effect consisting of the possibility of a continuous sweep of the direction of the diffracted beam over a relatively wide angular range, under the control of the frequency of the incident wave, is seen and analyzed. The design of a device realizing such a frequency‐direction conversion in the frequency range of 82–107 GHz is presented and discussed as a prototype of a new possible class of instruments. © 1996 American Institute of Physics.

Published in:

Journal of Applied Physics  (Volume:79 ,  Issue: 1 )