Abstract
ABSTRACTIn this article, we describe the design of a coplanar waveguide (CPW) fed Koch slot loop antenna with a tuning stub. The antenna is optimized to be used in a wireless body‐centric communication. The antenna is designed to operate in the ISM frequency band from 5.725 to 5.875 GHz (ITU‐R5.138, 5.150, and 5.280). The study shows properties of the antenna, from the viewpoint of impedance matching, and radiation patterns. The impedance matching at the resonant frequency can be acquired by a tuning stub. The designed CPW‐fed slot antenna exhibits a proper polarization, a low‐radiation loss, and a weaker dispersion. We experimentally prove that the designed antenna efficiently excites surface waves and creeping waves. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:764–766, 2014
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