Analysis of the RATAN-600 radiotelescope antenna with a multilevel Physical Optics algorithm |
| |
Institution: | 1. TELECOM SudParis, Lab. SAMOVAR (UMR CNRS 5157), 91011 Evry cedex, France;2. The Special Astrophysical Observatory, RAS, Russia;3. School of Electrical Engineering, Tel-Aviv University, Tel-Aviv, Israel |
| |
Abstract: | The RATAN-600 antenna is a flexible multireflector system composed of reflectors of very large dimensions. An extended system, with improved performance in the millimetric range, includes a focal receiver array. Accurate electromagnetic analysis of such a system, and simulation of three-dimensional (3D) patterns, represents a substantial computational challenge. A fast Physical Optics method based on a multilevel subdivision of the surfaces of integration is proposed to address this problem. This method allows to perform Physical Optics integrals with a computational complexity comparable to that of the Fast Fourier Transform. The algorithm and initial numerical results of its application to the RATAN-600 antenna system are presented. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|