#$%^&*AU2008245612B220130718.pdf#####DYNAMICALLY MATCHED MICROWAVE ANTENNA FOR TISSUE ABLATION ABSTRACT A microwave ablation probe 12 for providing microwave energy to tissue is disclosed. The probe 12 includes a feedline 26 having an inner conductor 20, a secondary inner conductor 23, an insulating spacer 22, and an outer conductor 24. The inner conductor 20 is slidably disposed within the secondary inner conductor 23. The feedline 26 also includes a radiating portion 30 having an extruded portion of the inner conductor 20 centrally disposed therein, wherein longitudinal movement of the inner conductor 20 relative to the feedline 26 tunes the radiating portion 30.1/2 14 12-. 26--, 28-- 30 16 FIG. 1 28 26 20 3 12 36 ----- ----------- --- (3-------8----- 22 34 24 FIG. 2 26#A3 1- -20 FIG. 3A 26 24 1,27 . 122 25FIG. 3B
