Comparison of beamforming algorithms for retro-directive arrays with faulty elements
| Autor: | Marcos V. T. Heckler, Andreas Winterstein, Lukasz Greda, Marcelo P. Magalhaes, Lucas S. Pereira, Alian Moreira Engroff, Alessandro Girardi |
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| Rok vydání: | 2016 |
| Předmět: |
Beamforming
Engineering Reconfigurable antenna business.industry 020208 electrical & electronic engineering Smart antenna optimization algorithm 020206 networking & telecommunications 02 engineering and technology Directivity Microstrip law.invention Microstrip antenna Side lobe law 0202 electrical engineering electronic engineering information engineering Electronic engineering retro-directive antenna business Field-programmable gate array |
| Zdroj: | 2016 10th European Conference on Antennas and Propagation (EuCAP). |
| DOI: | 10.1109/eucap.2016.7481697 |
| Popis: | This paper compares the performance of beamforming techniques applied to linear microstrip arrays under normal operation and for the case of faulty elements. The techniques are compared in terms of viability of implementation in embedded systems, such as an FPGA development board, and in terms of beamforming performance. The pattern optimizations considered aimed at steering the main beam, controlling the side lobe level and maximizing directivity. After numerical investigations, it is demonstrated that satisfactory results are obtained by both techniques for small steering angles (up to 30°). The pattern deterioration in case of failure of one element cannot be fully compensated, but both optimization techniques are able to improve radiation performance significantly. |
| Databáze: | OpenAIRE |
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