HYPERTHERMIE-MIKROWELLENAPPLIKATOR ZUR ERWAERMUNG EINER BEGRENZTEN UMGEBUNG IN EINEM DISSIPATIVEN MEDIUM

摘要

The antenna system of the invention is insulated on the outside and when inserted in a dissipative medium has a fixed complex resistance. When the antenna is supplied with HF energy through a coaxial cable, only that area of the medium immediately round the antenna is heated. The area surrounding the insulated HF feed line is not heated, or such heating is negligible, since, owing to the fixed complex resistance of the antenna in the medium, any return of energy along the feed line is prevented. The antenna system of the invention is suitable for use in the tumour-therapy field as a hyperthermic microwave applicator for limited local heating of the cancerous tissue.