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Efficient phase‐only synthesis of contoured‐beam patterns for very large reflectarrays
Author(s) -
Zornoza J. Agustín,
Encinar José A.
Publication year - 2004
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.20028
Subject(s) - tapering , maxima and minima , enhanced data rates for gsm evolution , intersection (aeronautics) , phase (matter) , beam (structure) , microwave , field (mathematics) , optics , computer science , engineering , electronic engineering , mathematics , telecommunications , physics , mathematical analysis , aerospace engineering , quantum mechanics , computer graphics (images) , pure mathematics
This article presents an efficient phase‐only synthesis method applied to contoured‐beam reflectarrays. The method, based on the intersection‐approach concept, provides the phase distribution of the reflected field that best suits the required gain‐pattern specifications. In order to avoid undesired local minima, several successive stages, in which the tapering on the reflectarray's edge is gradually increased, are carried out to reach a final suitable result. As an example of its capabilities, the coverage of Europe is successfully synthesized. © 2004 Wiley Periodicals, Inc. Int J RF and Microwave CAE 14, 415–423, 2004.