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A simple, efficient, and compact rotary joint has been designed, realized, and measured. It has been used intensively to perform polarization ellipticity measurements on various circularly polarized antennas (e.g., helical antennas and circularly polarized horns, used either individually or feeding a lens antennas) operating in millimeter-wave band (similar to 30 GHz). (C) 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:375-379, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25692
Romain Christophe Rémy Fleury, Amir Jafargholi