Linear antenna arrays with broadened nulls

It is shown that a null in the radiation pattern of a linear antenna array can be broadened into a null sector by the use of suitable forms of amplitude taper. For a uniformly spaced array, binomial taper coefficients with alternate positive and negative signs produce a maximally-flat null broadening. Null slewing by means of phase taper and null broadening by means of amplitude taper can be regarded as two independent operations.