| Autor: |
Marzieh Mehri Dehnavi, Jean-Jaques. Laurin |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS). |
| DOI: |
10.23919/ursigass51995.2021.9560316 |
| Popis: |
In this work, the phase-only synthesis technique is used for beam shaping of a C-Band circularly polarized dual-reflector antenna. The synthesis relies on Particle Swarm Optimization (PSO) by using the element factors of a 100-elements reflectarray. The optimized results suffer from discontinuities in the reflectarray phase distribution, leading to degradation of the far-field patterns. This work proposes a solution to force a continuous phase distribution among the reflectarray surface during the optimization process. The beam scanning capability of the proposed algorithm is investigated by scanning the beam in the uv plane, by −0.05 and −0.1 along the main axes, and by 0.07 along a 45-degree diagonal. It is shown that the phase smoothing condition leads to significant improvement in the quality of the synthesized beams. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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