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A probe-fed circularly polarized 3-layer stacked patch antenna is presented and simulated by using Commercial Ansoft High Frequency Structure Simulator. The design consists of three patches and three substrates. The lower and middle patches are of square-shaped where as the upper patch is of triangular-shaped. One slot is inserted in the lower layer, two slots are inserted in the middle layer and three slots are inserted on the upper layer so that bandwidth can be improved. Return loss, VSWR, gain, axial ratio and radiation patterns are simulated and analyzed. This antenna is best suitable for C-band applications.
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