Performance optimization of microstrip antenna array using frequency selective surfaces

an infinite planar array of rectangular microstrip patch antenna analysis

the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...

Digitally Excited Reconfigurable Linear Antenna Array Using Swarm Optimization Algorithms

This paper describes the synthesis of digitally excited pencil/flat top dual beams simultaneously in a linear antenna array constructed of isotropic elements. The objective is to generate a pencil/flat top beam pair using the excitations generated by the evolutionary algorithms. Both the beams share common variable discrete amplitude excitations and differ in variable discrete phase excitations...

Bandwidth Enhancement of Microstrip Patch Antenna Using Jerusalem Cross-shaped Fre- Quency Selective Surfaces by Invasive Weed Optimization Approach

In this paper, we present a novel approach for improving the bandwidth of a microstrip patch antenna using Jerusalem crossshaped frequency selective surfaces (JC-FSSs) as an artificial magnetic ground plane. The invasive weed optimization (IWO) algorithm is employed to derive optimal dimensions of the patch antenna and JC-FSS element in order for the whole structure to work at 5.8GHz with consi...

Phase-only Synthesis of Linear Microstrip Patch Antenna Array using Improved Local Search Particle Swarm Optimization

Antenna arrays have been used for various applications in wireless communications, Radar, satellite communications and mobile communications. Low sidelobe antenna arrays are need to be designed for increasing the efficiency of the communication systems. In this paper, an enhanced version of particle swarm optimization (PSO) known as improved local search particle swarm optimization (ILSPSO) is ...

Analysis of Metamaterial Based Microstrip Array Antenna