Microwave antenna with cooling system

摘要

According to one aspect of the present disclosure, a microwave antenna assembly is disclosed. The antenna assembly includes a feedline having an inner conductor, an outer conductor and an inner insulator disposed therebetween and a radiating portion including a dipole antenna having a proximal portion and a distal portion. The antenna assembly also comprises a sheath disposed over the feedline and the radiating portion defining a chamber around the feedline and the radiating portion. The chamber is adapted to circulate coolant fluid therethrough. The antenna assembly further includes a connection hub having cable connector coupled to the feedline, an inlet fluid port and an outlet fluid port. The connection hub includes a bypass tube configured to provide for flow of the coolant fluid from the cable connector directly to the outlet fluid port.

主权项

1. A microwave antenna assembly comprising:
a hub; a cylindrical sheath extending distally from the hub, the cylindrical sheath defining a chamber; a feedline configured to deliver microwave energy, the feedline including an inner conductor, an outer conductor, and an inner insulator disposed between at least a portion of the inner conductor and the outer conductor, wherein at least a portion of the inner conductor of the feedline extends through the chamber defined by the cylindrical sheath; and a fluid flow tube extending through the chamber defined by the cylindrical sheath, the fluid flow tube configured to deliver a coolant fluid to the chamber defined by the cylindrical sheath to cool the portion of the inner conductor of the feedline extending through the chamber defined by the cylindrical sheath and to a proximal portion of the hub to cool the proximal portion of the hub.