Abstract
A small fourth wavelength Ultra-Wideband half-E antenna with a shorting pin and folded patch feed is presented in this paper. This patch antenna has half structure, folded patch and a shorting pin to create a Ultra-wide impedance band patch antenna with small geometric size. The antenna sizes are 7.5mm15mm7mm (0.188λ00.376λ00.175λ0, where λ0 is the free space wavelength corresponding to the center frequency at 7.52GHz) and about 70.21% is obtained. The impedance bandwidths, radiation patterns, radiation efficiencies and gains of the antenna are discussed.
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