On-Body Characterization of Planar Differential Antennas for Multiple, Wide, and Narrow Bands

Abstract

This paper reports the results of the on-body experimental tests of a set of four planar differential antennas, originated by design variations of radiating elements with the same shape and characterized by the potential for covering wide and narrow bands. All the antenna designs have been implemented on low-cost FR4 substrate and characterized experimentally through on-body measurements. The results show the impact of the proximity to the human body on antenna performance and the opportunities in terms of potential coverage of wide and narrow bands for future ad hoc designs and implementations through wearable substrates targeting on-body and off-body communication and sensing applications.

Design and performance analysis of a purely textile spiral antenna for on-body NFC applications

“…The design of textile antennas has gained much popularity in the last few years, specifically on new designs, textile materials and construction methodologies for new applications [1], [2]. The existing textile antenna designs are based on sewing, embroidery and gluing of conventional threads and fabrics, but new challenges arise when flexibility, stretchability, conformability and robustness characteristics become the key for on-body applications.…”