Aperiodic Antenna Array for Secondary Lobe Suppression

Autor(es)

Gabrielli, Lucas H. ^[1] ; Hernandez-Figueroa, Hugo E. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Sch Elect & Comp Engn, BR-13083852 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: IEEE PHOTONICS TECHNOLOGY LETTERS; v. 28, n. 2, p. 209-212, JAN 15 2016.
• Citações Web of Science: 6

Resumo

We propose an aperiodic antenna array to suppress secondary radiation lobes in widely spaced arrays. We show that the use of Fermat's spiral as a template for the antenna array leads to similar results in terms of sidelobe level and bandwidth as those obtained by computationally expensive non-linear optimization methods. Furthermore, by maintaining the distances between neighbors approximately constant, the increase in array footprint is kept approximately within 25% of an equivalent periodic array, a key feature for space-constrained applications. Based on the straightforward computation of our method, we are able to present the results for arrays varying from 4 to 2048 elements and minimal spacing between the antennas up to ten wavelengths. (AU)

• Processo FAPESP: 08/57857-2 - Fotônica para comunicações ópticas
• Beneficiário: Hugo Luis Fragnito
• Linha de fomento: Auxílio à Pesquisa - Temático
• Processo FAPESP: 12/22517-2 - Desenvolvimento de um arranjo de nanoantenas ópticas coerentes
• Beneficiário: Lucas Heitzmann Gabrielli
• Linha de fomento: Bolsas no Brasil - Pós-Doutorado