Title :
Microwave absorbers made of arrays of square loops with lumped resistors through optimization with genetic algorithm approach
Author :
Han Ye ; Wenquan Che ; Christopoulos, Christos
Author_Institution :
Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
In this paper, the equivalent circuit model of a microwave absorber is proposed and investigated. The absorber is composed of square metal loops with lumped resistors over the grounded dielectric substrates. The electromagnetic behaviors of these frequency selective surface elements, and the substrate, are studied. A Genetic Algorithm (GA) is employed to optimize the geometrical parameters and the corresponding impedance properties to achieve different design requirements. Finally, two examples are presented and discussed; the results demonstrate the validity and accuracy of the equivalent circuit model.
Keywords :
dielectric materials; electromagnetic wave absorption; equivalent circuits; genetic algorithms; geometry; microwave materials; resistors; GA; design requirements; electromagnetic behaviors; equivalent circuit model; frequency selective surface elements; genetic algorithm approach; geometrical parameters; grounded dielectric substrates; impedance properties; lumped resistors; microwave absorbers; square metal loops; substrate; Analytical models; Equivalent circuits; Frequency selective surfaces; Genetic algorithms; Impedance; Integrated circuit modeling; Substrates;
Conference_Titel :
General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI
Conference_Location :
Beijing
DOI :
10.1109/URSIGASS.2014.6929418
