Patent ID: 8211098
Filing Date: 2012-07-03
Classification: A61B,H01Q

Abstract:
1. A microwave antenna assembly, comprising: a first elongated conductor associated with a first radiating portion at least partially along the length thereof; a second elongated conductor disposed within the first elongated conductor and associated with a second radiating portion at least partially along the length thereof; and a dielectric body portion disposed along the length of at least one of the first elongated conductor and the second elongated conductor, the dielectric body portion including at least two radial partitions of dielectric material having different dielectric constants, wherein at least one of the first or second elongated conductors includes first and second conductivity regions, wherein the first conductivity region has a first electrical conductivity, and the second conductivity region has a second electrical conductivity different from the first electrical conductivity, and wherein the at least two radial partitions of dielectric material include four radial partitions of dielectric material, each of the four radial partitions of dielectric material being different from each radially adjacent radial partition of the four radial partitions of dielectric material.