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Modern communication system demands compact devices that operate over a wide range of frequencies. These systems require minimum sized antennas. Two miniaturized spiral configurations (rectangular and circular) that offer wide bandwidth and multiband operation is proposed in this paper. The structures use spiral configuration to achieve size reduction and wideband/ multiband operation. The rectangular...
A small broadband omni-directional printed antenna comprising symmetrically arranged trapezoid elements is investigated for broadband Voltage Standing Wave Ratio (VSWR) and low center frequency characteristics. Two symmetrical trapezoid elements are printed on the bottom side of the substrate and are connected to a small ground plane printed on the same side over two strips. The trapezoid elements...
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