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Fast direct solution of high-order MoM accelerated by local ACA

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4 Author(s)
Lianfeng Ma ; Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China ; Zaiping Nie ; Jun Hu ; Shiquan He

In this paper, the local adaptive cross approximation based on the compressed LDLT factorization is proposed to directly solve the matrix equation obtained by high-order hierarchical MoM. By means of the local ACA algorithm, high accurate result with much higher compressed rate can be achieved. Because of using the hierarchical high-order basis functions (BFs), the number of the unknowns is rapidly reduced. We extensively investigate the compressed LDLT factorization on the use of Local ACA algorithm, and provide remedial procedures to improve the efficiency of the implementations.

Published in:

Microwave Conference, 2009. APMC 2009. Asia Pacific

Date of Conference:

7-10 Dec. 2009