On the effects of mutual coupling in the active reflection coefficient of wide-field scanning electrically large random phased arrays

Wide-angle scanning phased arrays suffer from bandwidth limitations due to the effects of mutual coupling. If the array is regular, blind scan anomalies can be found in the active reflection coefficient in band for even 2:1 bandwidth ratios. If the array has a random distribution of elements however...

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Bibliographic Details
Published in2016 International Conference on Electromagnetics in Advanced Applications (ICEAA) pp. 683 - 685
Main Authors de Lera Acedo, Eloy, Arts, Michel, Craeye, Christophe, Ha Bui Van
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2016
Subjects
Bandwidth
Finite element analysis
Impedance
Mutual coupling
Phased arrays
Reflection coefficient
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Summary:Wide-angle scanning phased arrays suffer from bandwidth limitations due to the effects of mutual coupling. If the array is regular, blind scan anomalies can be found in the active reflection coefficient in band for even 2:1 bandwidth ratios. If the array has a random distribution of elements however, we can see how the effects of mutual coupling randomize out in the active reflection coefficient, effectively increasing the frequency and scan range bandwidth.
DOI:10.1109/ICEAA.2016.7731490