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 K. Sarkar

doi:10.1109/TAP.2016.2621029

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 K. Sarkar

Department of Electrical Engineering & Computer Science

Research output: Contribution to journal › Article › peer-review

12 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 language	English (US)
Article number	7762842
Pages (from-to)	5501-5506
Number of pages	6
Journal	IEEE Transactions on Antennas and Propagation
Volume	64
Issue number	12
DOIs	https://doi.org/10.1109/TAP.2016.2621029
State	Published - Dec 2016

Keywords

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

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/TAP.2016.2621029

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

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.",

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

author = "Xunwang Zhao and Zhongchao Lin and Yu Zhang and Ting, {Sio Weng} and Sarkar, {Tapan K.}",

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AU - Zhao, Xunwang

AU - Lin, Zhongchao

AU - Zhang, Yu

AU - Ting, Sio Weng

AU - Sarkar, Tapan K.

PY - 2016/12

Y1 - 2016/12

N2 - 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.

AB - 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.

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KW - multilevel fast multipole algorithm (MLFMA)

KW - parallel computation

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

Abstract

Keywords

ASJC Scopus subject areas

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