Title :
Height reduced superdirective array with helical directors
Author :
Andrasic, G. ; James, J.R.
Author_Institution :
Sch. of Electr. Eng. & Sci., R. Mil. Coll. of Sci., Shrivenham, UK
Abstract :
A new end-fire helical superdirective array configuration is described that achieves both height and length reduction but does not need a corporate feed. Computations and measurements illustrate the sensitivity of the array directivity and efficiency to geometric changes for significant electrical size reductions. Possible applications and the use of superconducting elements are discussed.
Keywords :
antenna radiation patterns; directive antennas; microwave antenna arrays; superconducting microwave devices; 1 GHz; 3.05 GHz; array directivity sensitivity; electrical size reduction; end-fire helical superdirective array configuration; height reduction; helical directors; length reduction; radiation patterns; superconducting elements;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19931335
