#$%^&*AU2017219068B220180726.pdf#####DUAL-BAND DIPOLE MICROWAVE ABLATION ANTENNA ABSTRACT A method for forming a lesion is disclosed. The method comprises supplying microwave energy at a first frequency to a first frequency radiating section (76) of a triaxial microwave 5 antenna assembly (112); supplying microwave energy at a second frequency to a second frequency radiating section (78) of the triaxial microwave antenna assembly (112); and selectively energizing at least one of the first frequency radiating section (76) and the second radiating section (78) to adjust a property of the lesion. 13510880