In England and Wales, around 3750 people are admitted to hospital annually with burn and scald injuries [1]. Current assessment and monitoring of wound healing is through visual inspection, necessitating the removal of dressing materials. The removal of dressing layers can cause medical problems, be uncomfortable or painful to the patient. Currently, there are no tools which could assess the state of the healing burn wound without removing the dressings. Because electromagnetic radiation at microwave and millimeter wave frequencies can propagate through typical dressing materials with little attenuation, these bands of the electromagnetic spectrum are promising for assessing bandaged wounds1. In this paper the concepts of Active Millimeter Wave Imaging (AMMWI) is developed for assessing the feasibility of active radiation to monitor the wound healing under dressing materials in non-contact with the human body.