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Antenna-Filter-Antenna-Based Cell for Linear‒to‒Circular Polarizer Transmit-Array

Naseri, P. ; Costa, J.R. ; Matos, S.A. ; Fernandes, C. A.

Antenna-Filter-Antenna-Based Cell for Linear‒to‒Circular Polarizer Transmit-Array, Proc IEEE International Symp. on Antennas and Propagation - IEEE AP-S/USNC-URSI, San Diego, United States, Vol. , pp. 1 - 2, July, 2017.

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Abstract
In this paper, we propose a dual-band linear‒to‒circular polarization converter element based on the antenna‒filter‒antenna (AFA) structure. The traits of this cell include thin three-layer structure and ability to convert a linear incident wave to two orthogonal circular polarizations at two non-adjacent frequency bands. This combination of physical and electrical specifications makes this cell a novel solution. An example of this cell suitable for satellite communication is designed to operate at 20GHz and 30GHz (satellite Ka-band) with 4% and 8% bandwidth, respectively.