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This study explores the feasibility and fabrication limits for sub-THz bandpass filters based on frequency selective surfaces (FSS) made using inkjet conductive ink printing. Low-cost, easy-to-make mesh filters that operate up to 300 GHz are suggested. Full-wave electromagnetic solver is utilized for the design of filters, which are then characterized using THz time-domain spectroscopy.
In this paper, the effects of eight different human body sizes and shapes on the ultra wideband (3–10 GHz) on-body radio propagation channels are investigated. Eight different real human body shapes and sizes are investigated. Experimental investigation is performed using a pair of Tapered Slot Antennas (TSA) in the indoor environment. The path loss was modeled as a function of distance for 34 different...
The on-body radio channel performance of a small printed quasi-self-complementary ultra wideband (UWB) antenna is investigated in this paper. Measurement campaigns are performed in the chamber and in an indoor environment. The path loss was modeled as a function of distance for 34 different receiver locations for propagation along the front part of the body. A reduction of 16.34% path loss exponent...
This paper presents a dual band and diverse radiation mode antenna for power efficient and reliable on-body and off-body communications. The antenna is dual band with omnidirectional radiation pattern over the body surface at 2.45 GHz (ISM band) to communicate power efficiently with other co-located body worn devices scattered on the body or body worn base station. At 1.9 GHz (PCS band), it has with...
A time domain study of a small quasi-self-complementary UWB antenna is presented in this paper. A brief description of antenna geometry and its frequency domain performance are illustrated first. A comprehensive time domain investigation of the antenna is then conducted. It has been demonstrated that the small quasi-self-complementary UWB antenna generally exhibits a good performance in both the frequency...
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