We propose a new architecture for array antennas able to achieve a high-gain performance by using a low number of elements and uniform-amplitude excitations. The solution is realized through a fast and deterministic design technique able to accurately emulate, by exploiting only the feeds' dimensions as degrees of freedom of the synthesis, `ideal' continuous aperture sources fulfilling at best the assigned directivity requirements. The given theory is supported by numerical examples concerning the synthesis of isophoric direct radiating arrays devoted to a multibeam coverage of Europe from a geostationary satellite.
Isophoric array antennas with a low number of control points: a 'size tapered' solution / Morabito, Af; Laganà, A; Isernia, T. - In: PROGRESS IN ELECTROMAGNETICS RESEARCH. LETTERS. - ISSN 1937-6480. - 36:(2013), pp. 121-131. [10.2528/PIERL12092705]
Isophoric array antennas with a low number of control points: a 'size tapered' solution
Morabito AF
;Isernia T
2013-01-01
Abstract
We propose a new architecture for array antennas able to achieve a high-gain performance by using a low number of elements and uniform-amplitude excitations. The solution is realized through a fast and deterministic design technique able to accurately emulate, by exploiting only the feeds' dimensions as degrees of freedom of the synthesis, `ideal' continuous aperture sources fulfilling at best the assigned directivity requirements. The given theory is supported by numerical examples concerning the synthesis of isophoric direct radiating arrays devoted to a multibeam coverage of Europe from a geostationary satellite.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.