A cardiac ablation apparatus including a solenoidal antenna, monitoring electrodes, and a coupling network at a distal end of a catheter transmission line, and another coupling network at the proximal end of the catheter transmission line to connect the catheter to the source of radiofrequency (RF) power...http://www.google.se/patents/US5370644?utm_source=gb-gplus-sharePatent US5370644 - Radiofrequency ablation catheter
