Abstract
In this paper, a novel broadband circularly polarized (CP) slot antenna is proposed and fabricated, in which the perturbation configuration with two quarter annular rings fabricated cornerways in the square slot is designed and a simple Photonic-bandgap (PBG) structure is employed. Through simulating and testing, the broad impedance bandwidth of 81.5%(VSWR<2.0) and the 3dB axial ratio (AR) bandwidth of 48.2% are achieved respectively. This slot antenna will be widely utilized in communication field. These instructions give you basic guidelines for preparing papers for conference proceedings.
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