Ciência-IUL
Publicações
Descrição Detalhada da Publicação
Título Revista
IEEE Transactions on Antennas and Propagation
Ano (publicação definitiva)
2020
Língua
Inglês
País
Estados Unidos da América
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Abstract/Resumo
The working principle of a thin dual-band dual-linear to circular polarizer is presented here. This polarizer not only converts incident linearly polarized (LP) waves to circularly polarized (CP) waves in two frequency bands, but it also reverses the handedness of each signal. The electromagnetic behavior of the cell is carefully analyzed and two equivalent circuit models (ECMs) are presented to model the responses of
the cell to linearly polarized waves at normal incidence. The ECMs show how utilizing interlayer coupling can be leveraged to achieve reversed CP senses in two bands using a compact design. Analytical formulas are presented to provide initial values of the ECM components including the mutual coupling inductances. We present measurement results that agree well with the full-wave simulation and the ECM results, thus validating the proposed ECM model.
Agradecimentos/Acknowledgements
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Palavras-chave
Circular polarization,Dual-band,Equivalent circuits,Frequency selective surfaces,Polarizers
Classificação Fields of Science and Technology
- Ciências Físicas - Ciências Naturais
- Engenharia Eletrotécnica, Eletrónica e Informática - Engenharia e Tecnologia
Registos de financiamentos
Referência de financiamento | Entidade Financiadora |
---|---|
UIDB/EEA/50008/2020 | Fundação para a Ciência e a Tecnologia |
PTDC/EEI-TEL/30323/2017 | Fundação para a Ciência e a Tecnologia |