Antenna array with robust failed-element processor

Details Antenna array with robust failed-element processor Antenna array with robust failed-element processor

2007-11-15

2011-11-01

Sotomayor, John (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Testing or calibrating of radar system

By monitoring

C342S174000, C342S159000

Reexamination Certificate

active

08049661

ABSTRACT:
An array antenna has elements spaced less than one-half wavelength in order to produce a spatial pattern which has both visible and invisible regions. The elements in their nominal state are weighted so as to define particular sidelobe levels. In the presence of failed elements which might otherwise degrade the sidelobe levels, the element weighting function is compensated so as to preserve the sidelobe levels within the visible region of the antenna pattern by placing most or all of the degradation of the sidelobe levels into the invisible region of the antenna pattern.

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