Dual-Frequency Dual-Circularly-Polarized Printed Slot Antenna

TitleDual-Frequency Dual-Circularly-Polarized Printed Slot Antenna
Publication TypeConference Paper
Year of Publication2011
AuthorsBao, XL, Ammann, MJ
Conference NameLAPC - Loughborough Antennas & Propagation Conference
Conference Start Date14/11/2011
Conference LocationLoughborough, UK

A slot antenna which realizes dual frequency dual-sense circular polarization is proposed. A printed spiral slot is fed using a T-shaped microstrip feedline. The results show that axial-ratio bandwidths of 4.5% and 3.5 % are obtained for right-hand circular polarization and left-hand circular polarization, respectively. A detailed parametric study and description of circular polarization mechanism are presented.

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