volume | PIER Journals

Abstract

In this paper, a novel wearable inkjet printed dual-band antenna is presented, which works at 2.45 GHz and 5.8 GHz for wireless body area network applications. The proposed antenna geometry is composed of two printed monopole elements, which are constructed from an analytical profile of an exponentially-decaying sinusoidal curve. The analytically parameterized curve allows for constructing on demand irregular and unique shaped miniaturized radiators. The antenna system is printed on a transparent flexible polyethylene terephthalate (PET) film. The wearable dual-band printed antenna with an overall size 45 x 40 x 0.135 mm³ is compact, light weight, and low profile, making it a suitable candidate for wireless body area network applications, when limited volume space for the worn unit is a requirement. Good agreement between numerical and measured data is achieved. Moreover, the overall far-field radiation performance of the wearable dual-band antenna is satisfactory, with measured peak gains of 1.81 dBi and 3.92 dBi, and a total computed efficiencies of 81% and 82% at 2.45 GHz and 5.8 GHz, respectively. The effect of bending the wearable antenna structure is also investigated, and only slight performance variations are observed.

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Dr. Mohammed M. Bait-Suwailam

Dr. Akram Alomainy