DocumentCode
1276828
Title
A note on the limitations of Orchard´s method
Author
Ares-Pena, F.
Author_Institution
Grupo de Sistemas Radiantes, Santiago de Compostela Univ., Spain
Volume
44
Issue
1
fYear
2002
fDate
2/1/2002 12:00:00 AM
Firstpage
109
Abstract
It has been stated that Orchard´s (1985) method for the synthesis of array antennas and its extension to real patterns with real excitations are (a) unable to achieve a ripple level lower than about 0.5 dB when used to obtain shaped beams, and (b) only applicable to arrays of isotropic elements. For the benefit of the unwary, the author points out that neither of these limitations, in fact, applies either to Orchard´s original method or to its extensions to real symmetric patterns and real asymmetric patterns
Keywords
antenna arrays; antenna radiation patterns; shaped beam antennas; Orchard´s method; antenna patterns; array antennas synthesis; isotropic elements; real asymmetric patterns; real symmetric patterns; ripple level; shaped beams; Antenna arrays; Antenna radiation patterns; Antennas and propagation; Apertures; Directional antennas; Equations;
fLanguage
English
Journal_Title
Antennas and Propagation Magazine, IEEE
Publisher
ieee
ISSN
1045-9243
Type
jour
DOI
10.1109/74.997924
Filename
997924
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