Novel SIE formulations for accurate and stable analysis of near-zero-index materials

KARAOSMANOGLU B., OZMU U., ERGÜL Ö. S.

2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019, Georgia, United States Of America, 7 - 12 July 2019, pp.1453-1454 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • Doi Number: 10.1109/apusncursinrsm.2019.8889339
  • City: Georgia
  • Country: United States Of America
  • Page Numbers: pp.1453-1454
  • Middle East Technical University Affiliated: Yes

Abstract

© 2019 IEEE.We present surface-integral-equation formulations for accurate and stable solutions of electromagnetic problems involving near-zero-index materials with arbitrarily small permittivity and/or permeability values. The formulations are developed for conventional discretizations, while they can be implemented by using interaction routines of existing solvers. Initial results on canonical objects clearly demonstrate the superiority of the developed formulations in comparison to the conventional ones.