INNOVATIVE DESIGN OF A PLANAR FRACTAL-SHAPED GPS/GSM/WI-FI ANTENNA

摘要

In this letter, the design of a microstrip three-band antenna working in GPS, GSM, and Wi-Fi frequency bands is described. By considering a planar geometry printed on a dielectric substrate, the tuning of the antenna behavior in three nonharmonic frequency bands is obtained perturbing the patch perimeter according to a Koch-like fractal shape. The synthesis procedure is automatically performed by means of an iterative PSO-based optimization strategy where a fractal boundary generator is integrated with a MoM-based electromagnetic simulator. The feasibility of the approach as well as the reliability of the synthesized antenna is assessed through simulations as well as experimental results.