Alternative surface integral equation‐based characteristic mode analysis of dielectric resonator antennas

2016 ◽  
Vol 10 (2) ◽  
pp. 193-201 ◽  
Author(s):  
Yikai Chen
Keyword(s):  
Integral Equation ◽  
Dielectric Resonator ◽  
Mode Analysis ◽  
Surface Integral ◽  
Characteristic Mode ◽  
Dielectric Resonator Antennas ◽  
Surface Integral Equation

scholarly journals SURFACE INTEGRAL EQUATION FORMULATION FOR THE ANALYSIS OF SINGLE AND MULTI-LAYER DIELECTRIC ANTENNAS

2020 ◽  
Author(s):  
John Stevenson
Keyword(s):  
Integral Equation ◽  
Electromagnetic Scattering ◽  
Fast Multipole Method ◽  
Three Dimensional ◽  
Dielectric Materials ◽  
Layered Composite ◽  
Surface Integral ◽  
Dielectric Resonator Antennas ◽  
Surface Integral Equation ◽  
Integral Equation Formulation

This article studies numerically the electromagnetic scattering properties of three dimensional (3D), arbitrary shaped dielectric resonator antennas which are composed of single and multi-layered (composite) dielectric materials. Using the equivalence principle and the integral equation techniques, we first derive a surface integral equation (SIE) formulation which produces well-conditioned matrix equation. We then develop an algorithm to speed up the matrix-vector multiplications by employing the well-known method of moments (MoM) and the multilevel fast multipole method (MLFMM) on personal computer (PC) clusters. To solve the obtained integral equations, we apply a Galerkin scheme and choose the basis and testing functions as Rao-Wilton-Glisson (RWG) defined on planar patches. Finally, we present some 3D numerical examples to demonstrate the validity and accuracy of the proposed approach.

Shape Synthesis of Multi-mode Dielectric Resonator Antennas Using Characteristic Modes

2021 ◽  
Vol 35 (11) ◽  
pp. 1280-1281
Author(s):  
Binbin Yang ◽  
Abdullah Eroglu ◽  
Jacob Adams
Keyword(s):  
Cost Function ◽  
Dielectric Resonator ◽  
Mode Analysis ◽  
Synthesis Process ◽  
Modal Parameters ◽  
Characteristic Mode ◽  
Dielectric Resonator Antennas ◽  
Resonance Frequencies ◽  
The Cost ◽  
Multi Mode

This paper demonstrates a shape synthesis technique for multi-mode dielectric resonator antennas using binary genetic algorithm and characteristic mode analysis. The cost function for the synthesis process is defined from characteristic modal parameters, such as modal quality factors and self-resonance frequencies. Since only modal parameters are involved in the cost function, the shape synthesis process is made independent of feeds. In the paper, we demonstrate the shape synthesis of a DRA with three self-resonant modes at 3 GHz.

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