Radiation Patterns Account of a Circular Microstrip Antenna Loaded Two Annular

Abstract

In this paper, theoretical study of circular microstrip antenna loaded two annular (CMSAL2AR) and calculation of the radiation pattern using principle equivalence with moment of method formulation of electromagnetic radiation in this these based on the bodies of revolution (BoR), which are generated by revolution a planar curve about an axis called axis of symmetry to solving the electric fields integral equation (EFIE) and magnetic field integral equation (MFIE). To find an unknown electric current density  on the conductor surface ,and both unknowns electric and magnetic density  current on the dielectric surface which are  responsible for the generation of far fields radiation in the space for the components (E_θ ,E_φ) ,the surface currents was represented by a set of basis functions that give the Fourier series because the body has a circular symmetry property and then select a set of weighted  functions to find a linear system by using........