Performance Evaluation of Fractal-Inspired Miniaturized Planar Inverted-F Antennas

The performance of miniaturized Planar Inverted-F Antenna (PIFA) configurations are presented in this work. The first design is based on a pre-fractal geometry aiming to reduce the resonant frequency by increasing the perimeter of the radiating element. An evolution of the first design, based on the analysis of the miniaturization mechanism, is then considered, and a final variant, optimized for the wearable use-case, is presented. All PIFA configurations been realized an-tested to validate the simulations. Measured characteristics including reflection coefficient, boresight gain, as well as efficiency are presented.