MICROWAVE ABLATION ANTENNA SYSTEM

摘要

An antenna system is provided. The antenna system includes a coaxial cable, an antenna, and an impedance matching structure. The coaxial cable includes a center conductor extending a length of the coaxial cable, a dielectric material surrounding the center conductor along the length of the coaxial cable, and a conductive shield surrounding the dielectric material along the length of the coaxial cable. The antenna includes a conductor having an electrical length of half a wavelength at a selected operating frequency. The impedance matching structure includes a second center conductor mounted between an end of the center conductor of the coaxial cable and a feed end of the antenna. The impedance matching structure is configured to match an impedance of the coaxial cable to an impedance of the antenna.

主权项

1. An antenna system comprising:
a coaxial cable comprising
a center conductor extending a length of the coaxial cable;a dielectric material surrounding the center conductor along the length of the coaxial cable; anda conductive shield surrounding the dielectric material along the length of the coaxial cable; an antenna comprising a conductor having an electrical length of half a wavelength at a selected operating frequency; and an impedance matching structure comprising a second center conductor mounted between an end of the center conductor of the coaxial cable and a feed end of the antenna; wherein the impedance matching structure is configured to match an impedance of the coaxial cable to an impedance of the antenna.