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This paper presents characteristics of a free access transmission line consisting of a paper substrate and foam instead of dielectric substrate for easy installation in body area network applications. We measure the coupling characteristics between two dipole antennas above the proposed transmission line to show its basic performance. The coupling level between two dipole antennas on body propagation...
This paper presents “Smart suit” for body area network. Body communication network need to be prepared for firefighters, astronauts and soldiers to transmit vital data, location and other information to a base and to receive instructions. Corrected data by on/in body sensors are transmitted to an antenna through cables in conventional suits. For easy sensor location and no physical connection with...
Wide band electrical parameter measurement for thin material samples is presented by two identical ridged waveguide horn antennas facing each other to propagate quasi-TEM mode between ridges. To suppress multi-reflection inside horns, absorber sheets put on the walls are designed to minimize standing wave in the waveguide. We demonstrate wide band shielding effectiveness measurements and show the...
A simplified method for measuring the specific absorption rate (SAR) is required in order to limit the spatial-average SAR for mobile devices in Japan. In this paper, a simplified SAR measurement method involving the use of a flat-plane lightweight phantom composed of a radio wave absorber is proposed. The utility of the lightweight phantom and the feasibility of using the proposed measurement method...
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