Microwave ablation antenna radiation detector

摘要

A radiation detector disposed on a microwave antenna assembly is disclosed. The radiation detector includes a receiving antenna adapted to receive errant microwave energy and a rectifier coupled to the receiving antenna that is adapted to rectify at least a portion of the errant microwave energy. A filter is coupled to the rectifier and is adapted to convert the rectified microwave energy into a detection signal.

主权项

1. A radiation detector disposed on a microwave antenna assembly, the radiation detector comprising:
a receiving antenna configured to receive microwave energy and including: a dielectric substrate; an antenna member disposed on a first surface of the substrate, the antenna member configured to receive microwave energy; a grounding member disposed on a second surface of the substrate, wherein the antenna and grounding members are electrically insulated by the substrate; at least one rectifier coupled to the receiving antenna configured to rectify at least a portion of the microwave energy; and a filter coupled to the at least one rectifier and configured to convert the rectified microwave energy into a detection signal, wherein the filter includes a capacitor, an inductor and a resistor coupled in series or parallel.