Title :
Generalized variational approach to the waveguide array synthesis
Author :
Andriychuk, M.I.
Author_Institution :
Pidstryhach Inst. of Appl. Problems of Mech. & Math., NASU, Lviv, Ukraine
Abstract :
Some generalizations of the variational statement for the problem of antenna synthesis according to a prescribed amplitude radiation pattern (RP) are examined. An additional summand is included in optimizing the functional, that allows the electromagnetic field to be minimized in the near zone. The respective nonlinear Euler´s equation is obtained and investigated by numerical methods. The results of numerical modeling are represented. They show the opportunity for the formation of s in the synthesized RPs, as well as a decrease of field amplitude in given areas of the near zone.
Keywords :
antenna radiation patterns; antenna theory; electromagnetic fields; minimisation; nonlinear equations; variational techniques; waveguide antenna arrays; amplitude radiation pattern; antenna synthesis; electromagnetic field minimization; functional; generalized variational approach; nonlinear Euler equation; nonlinear equation; numerical methods; optimization; waveguide array synthesis; Decision support systems; Electromagnetic compatibility; Electromagnetic fields; Electromagnetic waveguides; Mathematics; Mutual coupling; Nonlinear equations; Numerical models;
Conference_Titel :
Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory, 2004. DIPED 2004. Proceedings of the 9th International Seminar/Workshop on
Print_ISBN :
966-02-3253-5
DOI :
10.1109/DIPED.2004.242804