Benvenuti nell'Anagrafe della Ricerca d'Ateneo
La valutazione delle attività di ricerca che si svolgono nelle università ha assunto un'importanza rilevante sia per l'intero sistema universitario sia all'interno di ogni singolo ateneo. Roma Tre si è quindi dotata di idonei strumenti informativi in grado di supportare al meglio le azioni di monitoraggio e di valutazione delle attività di ricerca svolte nei propri dipartimentied ha realizzato una Anagrafe della Ricerca di Ateneo.
EnglishIn this work, some original behavioral features of printed-circuit arrays of leaky-wave antennas have been investigated. In particular, by means of a rigorous spectral-domain approach in the unit cell, we have studied the end-of-scanning operation of a microstrip leaky-wave antenna array as a function of the phase shift between elements. A careful analysis in terms of the involved proper and improper spatial harmonics has shown that a transition region exists for the operating mode from a spatial leaky-wave regime to a surface-wave regime. This transition corresponds to the radiated beam hitting the array plane and evolving through a previously unexplored phase gap into a surface wave propagating at an angle with respect to the microstrip line sources. Such finding allows us to achieve a more complete view of the radiation properties of this class of scanning antennas.
| Titolo: | The Nature of the End-of-Scanning Region in Printed-Circuit Arrays of Leaky-Wave Antennas |
| Autori: | |
| Data di pubblicazione: | 2002 |
| Rivista: | |
| Citazione: | Baccarelli, P., & Galli, A. (2002). The Nature of the End-of-Scanning Region in Printed-Circuit Arrays of Leaky-Wave Antennas. IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 1(1), 60-63. |
| Abstract: | In this work, some original behavioral features of printed-circuit arrays of leaky-wave antennas have been investigated. In particular, by means of a rigorous spectral-domain approach in the unit cell, we have studied the end-of-scanning operation of a microstrip leaky-wave antenna array as a function of the phase shift between elements. A careful analysis in terms of the involved proper and improper spatial harmonics has shown that a transition region exists for the operating mode from a spatial leaky-wave regime to a surface-wave regime. This transition corresponds to the radiated beam hitting the array plane and evolving through a previously unexplored phase gap into a surface wave propagating at an angle with respect to the microstrip line sources. Such finding allows us to achieve a more complete view of the radiation properties of this class of scanning antennas. |
| Handle: | http://hdl.handle.net/11590/327813 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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