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Optimization of Frequency Selective Surfaces

David Ericsson (Institutionen för tillämpad mekanik, Beräkningsteknik) ; Thomas Rylander (Institutionen för tillämpad mekanik, Beräkningsteknik)
RVK05 - Radiovetenskap och Kommunikation (2005)
[Konferensbidrag, refereegranskat]

Frequency selective surfaces are important in many electromagnetic applications since they transmit electromagnetic energy for some frequencies and reflect for others. There is a variety of tools available for the design of the interior structure of frequency selective surfaces. Here, we propose to use gradient-based optimization techniques in combination with a time-domain hybrid Finite Element Method (FEM) and Finite-Difference Time-Domain (FDTD) scheme for the design of frequency selective surfaces. The sensitivity of the goal function is computed cheaply from the solution of an adjoint field problem, which yields the steepest descent direction with respect to all design parameters.

Nyckelord: Optimization, Frequency Selective Surfaces, Electromagnetic Scattering



Denna post skapades 2007-01-09.
CPL Pubid: 7253

 

Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Beräkningsteknik (2005-2006)

Ämnesområden

Elektroteknik och elektronik

Chalmers infrastruktur

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Denna publikation ingår i:


A hybrid finite element method for electromagnetics with applications in time-domain