Broadband Triple-Frequency Microstrip Patch Radiator Combining a Dual-Band Modified Sierpinski Fractal and a Monoband Antenna

摘要

A triple-frequency antenna combining a dual-band and a monoband antenna with broadside radiation patterns is presented. The dual-band antenna is inspired in the Sierpinski fractal. Such a dual-band antenna is stacked over a monoband antenna. The antenna presents a broadband behavior at each band thanks to parasitic patches. The antenna has been designed using a MoM commercial code and has been experimentally tested, obtaining three bands with a broad bandwidth, high efficiency, and similar radiation patterns