A multicarrier ablation system comprising: an antenna for application tobiologicaltissue； a multi-carrier signal generator configured to provide a forward radiofrequency (RF) signal to the antenna, the forward RF signal comprisingmultiplesubcarriers that occupy respective frequencies within a bandwidth of the RFsignal；and a monitoring circuit configured to receive a reflected RF signal from theantenna and control the multi-carrier signal generator to adjust one or moreparameters of the forward RF signal during an ablation procedure based on thereflected RF signal.
