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Please use this identifier to cite or link to this item: http://hdl.handle.net/10651/54226

Title: Near-field multi-focusing transmitarray optimization for multi-position feed
Author(s): Fernández Vaquero, Álvaro
Arrebola Baena, Manuel
Rodríguez Pino, Marcos
Issue date: Oct-2019
Abstract: A transmitarray antenna is proposed as a multifocusing antenna in the near-field region with capability for focus scanning and/or simultaneous and independent focus spots generation at 28 GHz. The transmitarray optics is defined for a centred configuration and the elements are designed to focus the radiated near-field at a given point. Then, a number of feeds is placed along arcs in the principal planes and the near-field generated by the transmitarray when its illuminated by each one is obtained, demonstrating the capability to generate multiple independent near-field spots. The focusing performance is improved for the centered feed through a Phase-Only synthesis technique based on the generalized Intersection Approach in near-field. Finally, the spots produced by the whole cluster are calculated, demonstrating the overall improvement and validating the designing process. This configuration can be applied in near-field systems as radar for surface inspection, measurement systems or wireless power transfer among others.
Description: ​Annual​ ​Meeting​ ​and​ ​Symposium​ ​of​ ​the​ ​Antenna​ ​Measurement​ ​Techniques Association (41st​. 2019. San Diego​, ​USA)
URI: http://hdl.handle.net/10651/54226
Sponsored: This work was supported in part by the Ministerio de Ciencia, Innovacion y Universidades under project TEC2017-86619-R (ARTEINE) and by the Gobierno del Principado de Asturias/FEDER under Project GRUPIN-IDI/2018/000191.
Project id.: TEC2017-86619-R
GRUPIN-IDI/2018/000191
Appears in Collections:Ponencias, Discursos y Conferencias
Ingeniería Eléctrica, Electrónica, de Computadores y Sistemas
Investigaciones y Documentos OpenAIRE

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