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Phaseless antenna characterization by prolate function expansion of the aperture field
Author(s) -
Capozzoli A.,
Curcio C.,
D'Elia G.,
Liseno A.
Publication year - 2006
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.21852
Subject(s) - reliability (semiconductor) , antenna (radio) , aperture (computer memory) , antenna aperture , representation (politics) , field (mathematics) , prolate spheroid , function (biology) , microwave , characterization (materials science) , computer science , algorithm , inverse problem , electronic engineering , optics , physics , mathematics , engineering , telecommunications , acoustics , radiation pattern , mathematical analysis , power (physics) , quantum mechanics , evolutionary biology , politics , pure mathematics , political science , law , biology
To be of actual interest for practical applications, phaseless antenna characterization must be reliable and accurate. This inverse problem suffers from the ill‐posedeness, and its solution is very sensitive to the adopted formulation that should be able to incorporate all the available information. An “effective” representation of the unknowns is able to reduce the overall number of parameters to be sought for and therefore to have significant beneficial effects on both accuracy and reliability. This aim is attained by means of a prolate spheroidal wave function expansion of the aperture field, which allows accounting for the finite dimensions of the antenna aperture with the least possible number of parameters. Numerical and experimental results point out the accuracy and reliability of the proposed algorithm, also in comparison with other available methods. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 2060–2064, 2006; Published online in Wiley Inter‐Science (www.interscience.wiley.com). DOI 10.1002/mop.21852