In this paper, a systematic procedure to design a surface wave excited holographic antenna is proposed. First, an equivalent anisotropic surface impedance is defined by a combination of a desired aperture field and the average electric current distribution of the incident surface wave. This combination is then included as a constrain in an alternate projections process that is allowed for synthesizing an aperture field for a given mask of antenna directivity. Once each point of the antenna surface is characterized by a suitable impedance tensor, the latter is synthesized by a FFS-kind patch structure with variable dimension and geometry.
Holographic antennas: Principle of operation and design guidelines / M. Albani; M. Bandinelli; F. Caminita; P. De Vita; A. Freni; S. Maci; A. Mazzinghi; G. Minatti; M. Sabbadini. - STAMPA. - (2010), pp. 1-3. (Intervento presentato al convegno Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on tenutosi a Barcelona, Spain nel 12-16 April 2010).
Holographic antennas: Principle of operation and design guidelines
DE VITA, PAOLO;FRENI, ANGELO;MAZZINGHI, AGNESE;
2010
Abstract
In this paper, a systematic procedure to design a surface wave excited holographic antenna is proposed. First, an equivalent anisotropic surface impedance is defined by a combination of a desired aperture field and the average electric current distribution of the incident surface wave. This combination is then included as a constrain in an alternate projections process that is allowed for synthesizing an aperture field for a given mask of antenna directivity. Once each point of the antenna surface is characterized by a suitable impedance tensor, the latter is synthesized by a FFS-kind patch structure with variable dimension and geometry.
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