Microwave antenna

A microwave antenna assembly, comprising:

• a feedline including an inner conductor, an outer conductor and an inner insulator disposed therebetween;
• a radiating portion including a dipole antenna having a proximal portion and a distal portion;
• a sheath disposed over the feedline and the radiating portion defining a chamber around the feedline and the radiating portion, the chamber adapted to circulate coolant fluid therethrough;
• and
• a three-branch connection hub including a first branch having a cable connector coupled to the feedline at a junction point, a second branch having an outlet port, a third branch having an inlet port, and an opening defined in the first branch, wherein the second branch is configured to receive a bifurcated coupler having at least a first port and a second port, wherein the second port is fluidly coupled to the second branch and the first port is fluidly coupled to the bypass tube.

A microwave antenna assembly, comprising:

• a feedline including an inner conductor, an outer conductor and an inner insulator disposed therebetween;
• a radiating portion including an antenna;
• a sheath disposed over the feedline and the radiating portion defining a chamber around the feedline and the radiating portion, the chamber adapted to circulate coolant fluid therethrough;
• and
• a connection hub including a cable connector coupled to the feedline and inlet and outlet fluid ports connected via a bypass tube, wherein the bypass tube is inserted into the second branch through a beveled opening defined therein and the outlet port is sealed around the bypass tube.