Contents Introduction
The proliferation of hand-held wireless and cellular consumer products over the last two decades has prompted a beneficial increase in the research to minimize exposure to human tissue. Motivated by safety concerns, most of the reports focused on studies using communication frequencies. On the other hand, medical applications have exploited the ISM (Industrial Scientific and Medical) frequencies with the 434 MHz frequency band proposed for therapeutic applications such as hyperthermia [1], [2]. In this case, reduction of the radiating applicator dimension and efficient delivery of electromagnetic energy without skin burning are priority considerations.
