Analysis of the scattering characteristics of finite arrays on an infinite ground plane based on finite elements and generalized scattering matrix

2005 ◽  
Author(s):  
J. Rubio ◽  
M.A. Gonzalez ◽  
J. Zapata
Keyword(s):  
Finite Elements ◽  
Ground Plane ◽  
Scattering Matrix ◽  
Generalized Scattering Matrix

scholarly journals Planar ESPAR Array Design with Nonsymmetrical Pattern by Means of Finite-Element Method, Domain Decomposition, and Spherical Wave Expansion

2012 ◽  
Vol 2012 ◽  
pp. 1-8
Author(s):  
Jesús García ◽  
Juan F. Izquierdo ◽  
Jesús Rubio ◽  
Miguel A. González ◽  
Juan Zapata
Keyword(s):  
Finite Element ◽  
Domain Decomposition ◽  
Mutual Coupling ◽  
Ground Plane ◽  
Spherical Wave ◽  
Scattering Matrix ◽  
Mode Expansion ◽  
Spherical Waves ◽  
Spherical Wave Expansion ◽  
Generalized Scattering Matrix

The application of a 3D domain decomposition finite-element and spherical mode expansion for the design of planar ESPAR (electronically steerable passive array radiator) made with probe-fed circular microstrip patches is presented in this work. A global generalized scattering matrix (GSM) in terms of spherical modes is obtained analytically from the GSM of the isolated patches by using rotation and translation properties of spherical waves. The whole behaviour of the array is characterized including all the mutual coupling effects between its elements. This procedure has been firstly validated by analyzing an array of monopoles on a ground plane, and then it has been applied to synthesize a prescribed radiation pattern optimizing the reactive loads connected to the feeding ports of the array of circular patches by means of a genetic algorithm.

Sign in / Sign up

Export Citation Format

Share Document