Parallel Hybrid Method of HOMoM-MLFMA for Analysis of Large Antenna Arrays on an Electrically Large Platform

Xunwang Zhao, Zhongchao Lin, Yu Zhang, Sio Weng Ting, Tapan Kumar Sarkar

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

The higher order method of moments (HOMoM) with a direct solver is hybridized with the multilevel fast multipole algorithm given the multiscale nature of airborne antenna arrays. The Poggio-Miller-Chang-Harrington-Wu formulation and the combined filed integral equation are solved for modeling metallic/dielectric antennas on a conducting platform. To accelerate the outer iteration between the two algorithms, the lower/upper decomposed matrix in HOMoM is reused and the initial values of current coefficients are properly set. Furthermore, a computational scheme based on the high-performance computing technique is designed to improve the hybrid method. A large model of a 2132-element microstrip array mounted on a 1020-wavelength airplane is accurately simulated.

Original languageEnglish (US)
Article number7762842
Pages (from-to)5501-5506
Number of pages6
JournalIEEE Transactions on Antennas and Propagation
Volume64
Issue number12
DOIs
StatePublished - Dec 1 2016

Keywords

  • Antenna arrays
  • electrically large platform
  • higher order method of moments (HOMoM)
  • multilevel fast multipole algorithm (MLFMA)
  • parallel computation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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