Title :
Maximum gain of Yagi--Uda arrays
Author :
Bojsen, J.H. ; Schjaer-Jacobsen, H. ; Nilsson, Emil ; Bach Andersen, J.
Author_Institution :
Technical University of Denmark, Laboratory of Electromagnetic Theory, Lyngby, Denmark
Abstract :
Numerical optimisation techniques have been used to find the maximum gain of some specific parasitic arrays. The gain of an array of infinitely thin, equispaced dipoles loaded with arbitrary reactances has been optimised. The results show that standard travelling-wave design methods are not optimum. Yagi--Uda arrays with equal and unequal spacing have also been optimised with experimental verification.
Keywords :
antenna arrays; Yagi Uda arrays; cylindrical dipoles; gain; numerical optimisation techniques; surface wave antenna theory; travelling wave distribution;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19710360