NDLI: Efield MDMM — A new and innovative domain decomposition technique for advanced cavity problems

Content Provider	IEEE Xplore Digital Library
Author	Strand, B. Wastberg, B. Abenius, E.
Copyright Year	2012
Description	Author affiliation: Efield AB, Skalholtsgatan 10B, SE-164 40 Kista, Sweden (Strand, B.; Wastberg, B.; Abenius, E.)
Abstract	This paper describes Efield® MDMM (Multi-Domain Multi-Method) a domain decomposition technique which may be used for a wide range of applications, including RCS of air intakes and exhausts, installation and interference of cavity antennas as well as analysis of antennas and waveguides. In Efield® MDMM the geometry is divided into domains where different methods can be applied depending on what is most appropriate. For example consider a full aircraft model with integrated antennas, air-intakes or other detailed structures. When using Efield® MDMM, antenna and cavity parts are typically solved by Method of Moments (MoM) or Finite Element Method (FEM) while Multi-Level Fast Multipole Method (MLFMM) or Physical Optics (PO) is used for the platform. This approach often leads to significant gains in terms of accuracy and efficiency. Applying MLFMM for the full problem often results in poor or no convergence due to the ill-conditioning of the resulting system. In this paper we present the Efield® MDMM technique and show several examples which illustrate the efficiency of the method.
Starting Page	2280
Ending Page	2284
File Size	657243
Page Count	5
File Format	PDF
ISBN	9781457709180
e-ISBN	9781457709203
e-ISBN	9781457709197
DOI	10.1109/EuCAP.2012.6206730
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-03-26
Publisher Place	Czech Republic
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	cavity RCS antenna installation finite element domain decomposition Electromagnetic waveguides cavity problems fast multipole method Finite element methods Geometry multi-method Magnetic domains multi-domain Cavity resonators method of moments Moment methods Antennas
Content Type	Text
Resource Type	Article

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