Rapid Method for Finding Faulty Elements in Antenna Arrays Using Far Field Pattern Samples

TítuloRapid Method for Finding Faulty Elements in Antenna Arrays Using Far Field Pattern Samples
AutoresJ. A. Rodríguez-González, F. Ares-Pena, M. Fernández-Delgado, R. Iglesias, S. Barro.
TipoArtículo de revista
Fonte IEEE Transactions on Antennas and Propagation, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, Vol. 57, No. 6, pp. 1679-1683 , 2009.
ISSN1045-9243
DOI10.1109/TAP.2009.2019915
AbstractA simple and fast technique that allows a diagnosis of faulty elements in antenna arrays, that only needs to consider a small number of samples of its degraded far-field pattern is described. The method tabulates patterns radiated by the array with 1 faulty element only. Then, the pattern corresponding to the configuration of failed/unfailed elements under test is calculated using the error-free pattern and the patterns with 1 faulty element. The configuration with the lowest difference between the calculated and the degraded patterns is selected. Comparison of the performance of this method using an exhaustive search and a genetic algorithm for an equispaced linear array of 100 2-dipoles is shown. Mutual coupling as well as noise/measurement errors in the pattern samples were considered in the numerical analysis.
Palabras chaveFault diagnosis, genetic algorithms, phase-array antennas

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