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Comments on the phase center computation for Ka-band planar lens-antenna feeders

Robustillo, P. ; Silva, J. S. ; Costa, J.R. ; Fernandes, C. A. ; Mosig, JM

Comments on the phase center computation for Ka-band planar lens-antenna feeders, Proc European Conf. on Antennas & Propagation - EUCAP, Lisbon, Portugal, Vol. -, pp. - - -, April, 2015.

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Abstract
This paper presents a modified methodology to compute the phase center of planar antennas. It is especially well suited for low-profile geometries without axial symmetry that are currently being proposed as feeder systems for Ka-band lens antennas. By taking into account new features, such as large spherical surface consideration and dual electric field components, this modified algorithm results in improved designs for complete Ka-band, lens-based systems showing consistently an enhanced gain.