A symmetrically fed aperture-coupled stacked-patch antenna

Although the proposed antenna does not completely fulfill the10 dB matching requirement of the ECC UWB band entirely, it qualifies itself as a good candidate for UWB applications requiring radiation to one side only. The antenna´s high gain makes it suitable for directional radio systems, e.g. in the medical field for communication with a pacemaker implant. For this purpose, further investigations have to focus on downsizing the whole antenna structure as well as on optimizations for radiating into human body tissue.