A miniaturized dual band bow-tie microstrip antenna for implantable and wearable telemedicine applications

In this article, a miniaturized dual band, multislotted bow-tie microstrip antenna for wearable telemedicine applications involving a bidirectional wireless link between implantable and wearable systems is proposed. The number, size, and position of the slots, center width, as well as the size of the ground plane, were selected to control the TM30 mode such that the antenna resonates at the desired frequencies and provides the radiation patterns for the intended application. The antenna operates with a dipole-like radiation pattern in the 915 MHz band and a broadside radiation pattern in the 2.45 GHz band. The reflection coefficient and far-field radiation patterns were measured and compared against the simulated results. (C) 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 54:365-369, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26523