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.
Frequency-induced angular sweep of the electromagnetic wave diffracted by weakly curved periodic media in the dynamical regime / S., Melone; Francescangeli, Oriano; Caciuffo, ROBERTO GIOVANNI MARIA. - In: JOURNAL OF APPLIED PHYSICS. - ISSN 0021-8979. - 79 (1):(1996), pp. 30-38. [10.1063/1.360950]
Frequency-induced angular sweep of the electromagnetic wave diffracted by weakly curved periodic media in the dynamical regime
FRANCESCANGELI, ORIANO;CACIUFFO, ROBERTO GIOVANNI MARIA
1996-01-01
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
