Reference Phase in Diffractive Lens Antennas: A Review |
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Authors: | Igor V Minin O V Minin |
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Affiliation: | (1) Novosibirsk State Technical University, 20 K.Marksa Ave, Novosibirsk, 630092, Russia |
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Abstract: | We review a free parameter in the design of Fresnel zone plate lens antennas. Historically, zone plate antennas have been
designed with a specific choice for this parameter, which can be taken as a type of phase reference. Two methods of interpreting
the parameter have been identified, either in terms of a reference radius or equivalently a reference phase. Here, for simplicity, we treat this variable parameter as a reference phase. Importantly, the reference phase can be chosen
to have non-standard values which have been shown to improve important aspects of antenna performance and to add a new functionality
to zone plate antennas. |
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