Title :
Electronic steering of multiple nulls for circular arrays
Author :
Davies, D.E.N. ; Rizk, Mostafa
Author_Institution :
University College London, Department of Electronic & Electrical Engineering, London, UK
Abstract :
This letter shows that an n-element circular array can have up to n ¿ 1 independent zeros in the 360° range of its directional pattern and describes suitable phasing networks to steer independently these zeros. Experimental results are presented for steering two nulls with a 4-element circular array, and the significance of certain pattern-distortion terms is briefly discussed.
Keywords :
antenna phased arrays; antenna radiation patterns; circular arrays; directional pattern; electronic steering; multiple nulls;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19770475
