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Analysis of waveguide slot antennas using MLFMA
Author(s) -
Liu Xu,
Liang Changhong,
Zhao Xunwang
Publication year - 2008
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.23015
Subject(s) - multipole expansion , preconditioner , method of moments (probability theory) , microwave , waveguide , computation , field (mathematics) , computational science , computer science , electronic engineering , mathematics , physics , engineering , algorithm , optics , iterative method , telecommunications , quantum mechanics , statistics , estimator , pure mathematics
Slotted waveguide array is analyzed using the multilevel fast multipole algorithm (MLFMA) combined with the near‐field preconditioner applied to the metallic surfaces of the waveguide structure. The approach differs from existing methods that utilize asymptotic method, method of moments (MoM) with the magnetic field integral equation (MFIE), or hybrid methods of MoM and boundary element method (BEM). Since no ideal assumptions are made, the analysis and computation are considered to be theoretically and numerically rigorous. In addition, the low complexity of the MLFMA is especially favorable for fast calculation of the large‐scale waveguide arrays. The experimental results validate the algorithm. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 65–68, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23015