Title :
Matrix pseudo-inversion technique for diagnostics of planar arrays
Author :
Brégains, J.C. ; Ares, F. ; Moreno, E.
Author_Institution :
Radiating Syst. Group, Univ. of Santiago de Compostela, Spain
Abstract :
It is shown, by means of numerical simulation, that the Moore-Penrose pseudoinverse of a matrix taken from an overdetermined system can be applied to retrieve the excitation distribution of a planar array of parallel dipoles with faulty elements, by measuring the complex radiated field in its near zone. Failures on voltage (considering mutual coupling) and current of several elements, and systematic or random measurement errors, are considered in the simulation.
Keywords :
antenna theory; dipole antenna arrays; failure analysis; matrix decomposition; measurement errors; numerical analysis; planar antenna arrays; Moore Penrose pseudoinverse; complex radiated field; failure analysis; faulty elements; matrix pseudoinversion technique; mutual coupling; numerical simulation; parallel dipoles; planar array excitation distribution; planar arrays diagnostics; random measurement errors; singular matrix decomposition;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20056849
