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A design method for coplanar waveguide-fed capacitively coupled slot antenna is presented. An equivalent model of a coupling capacitor and two parallel short-circuit slotlines is proposed for analyzing the capacitively coupled slot antenna. Equations as well as design curves are provided. Two conventional antennas are fabricated and measured. The simulated results show good agreement with the measured...
A new broadband circularly polarized (CP) square slot antenna with coplanar waveguide (CPW) fed is designed in this paper. An asymmetry ground plane makes the adjacent resonant mode to merge into a wide operation bandwidth, and the C-shaped structure can offer the current path, two orthogonal electric fields with a 90° phase difference for exciting a circular polarization radiation wave. The measured...
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