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This paper proposes a conformal trapezoid strip excited broadband hemispherical dielectric resonator antenna (DRA) design in ultra wide-band (UWB) low band 3.1-4.8 GHz for medical capsule endoscope applications. The proposed antenna can be conformal to the capsule dome and is also characterized by light weight, low profile, low cost, small size. A broadband trapezoid monopole receiver antenna is developed...
This work presents results for wireless outdoor MIMO transmission experiments at 2.68 GHz, which were conducted in an urban residential area, using realistic handset and base station antennas. Characteristic parameters of MIMO systems, obtained from measurements, were compared to theoretical results. From the comparison it could be concluded that the transmission of two spatial streams was well supported...
An optimized multiple-input-multiple-output (MIMO) antenna system is proposed. It is based on the traditional planar inverted-F antenna (PIFA) design, accommodated on a printed circuit board (PCB) for mobile handsets and operating at 21.6GHz. The PIFA dimension is reduced by 30% with meander structure etched on the conventional PIFA. Diversity performances of a parallel dual-element Meander PIFA array...
This work presents performance evaluation results for four 2 ?? 2 multiple-input-multiple-output (MIMO) prototype antenna configurations with different antenna element spacings and polarization properties. The prototypes are based on a size optimized planar inverted-F antenna (PIFA) element which applies a meander structure etched on the metallic patch. Anechoic and reverberation chamber measurements...
Wireless body area communication is of importance for healthcare and medical applications. In this study, an on-body ultra wideband channel model was developed based on a measurement approach with an emphasis on various body postures and the floor effect. The results show that a complete channel model can be regarded as a combination of the on-body propagation characteristic and additional components...
This work proposes an antenna design based on a size optimized planar inverted-F antenna (PIFA) with meander structure for multiple-input-multiple-output (MIMO) handset applications. Two elements orientations on half PCB, which cover different translations and rotations, are investigated in terms of diversity performance. A highly efficient parallel dualelement meander PIFA array prototype is implemented...
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