Circularly polarized patch antenna array using proximity-coupled L-strip line feed

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Original languageEnglish
Pages (from-to)1174-1175
Journal / PublicationElectronics Letters
Issue number14
Publication statusPublished - 6 Jul 2000


A microstrip antenna array for circular polarization (CP) using a proximity L-strip line feed is proposed and experimentally investigated. By placing a cross-slot with unequal slot lengths on the circular patch, circular polarization can be excited. Also, a sequential rotation technique is adopted for the design of this CP antenna array to widen the bandwidth. The impedance and axial ratio bandwidth values are 78 and 16.15%, respectively. The boresight axial ratio is 0.4 dB at 1.91 GHz.