RCS and antenna modeling with MOM using hybrid meshes

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Description

In this presentation, the authors will investigate the use of hybrid meshes for modeling RCS and antenna problems in three dimensions. They will consider two classes of hybrid basis functions. These include combinations of quadrilateral and triangular meshes for arbitrary 3D geometries, and combinations of axisymmetric body-of-revolution (BOR) basis functions and triangular facets. In particular, they will focus on the problem of enforcing current continuity between two surfaces which are represented by different types of surface discretizations and unknown basis function representations. They will illustrate the use of an operator-based code architecture for the implementation of these formulations, and how ... continued below

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8 p.

Creation Information

Putnam, J.M. & Kotulski, J.D. February 1, 1997.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 12 times . More information about this report can be viewed below.

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Authors

  • Putnam, J.M. McDonnell Douglas Corp., St. Louis, MO (United States)
  • Kotulski, J.D. Sandia National Labs., Albuquerque, NM (United States)

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

In this presentation, the authors will investigate the use of hybrid meshes for modeling RCS and antenna problems in three dimensions. They will consider two classes of hybrid basis functions. These include combinations of quadrilateral and triangular meshes for arbitrary 3D geometries, and combinations of axisymmetric body-of-revolution (BOR) basis functions and triangular facets. In particular, they will focus on the problem of enforcing current continuity between two surfaces which are represented by different types of surface discretizations and unknown basis function representations. They will illustrate the use of an operator-based code architecture for the implementation of these formulations, and how it facilitates the incorporation of the various types of boundary conditions in the code. Both serial and parallel code implementation issues for the formulations will be discussed. Results will be presented for both scattering and antenna problems. The emphasis will be on accuracy, and robustness of the techniques. Comparisons of accuracy between triangular meshed and quadrilateral meshed geometries will be shown. The use of hybrid meshes for modeling BORs with attached appendages will also be presented.

Physical Description

8 p.

Notes

OSTI as DE97002533

Source

  • 13. annual review of progress in applied computational electromagnetics, Monterey, CA (United States), 17-21 Mar 1997

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  • Other: DE97002533
  • Report No.: SAND--97-0216C
  • Report No.: CONF-970356--1
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/453501 | External Link
  • Office of Scientific & Technical Information Report Number: 453501
  • Archival Resource Key: ark:/67531/metadc682517

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Creation Date

  • February 1, 1997

Added to The UNT Digital Library

  • July 25, 2015, 2:21 a.m.

Description Last Updated

  • April 13, 2016, 5:59 p.m.

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Putnam, J.M. & Kotulski, J.D. RCS and antenna modeling with MOM using hybrid meshes, report, February 1, 1997; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc682517/: accessed September 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.