A high gain, phased array antenna includes a conducting sheet having a number of one or more slots defined therein. The input audio samples are transformed into a vector of spectral values in a frequency domain. The transfer module retrieves a second transfer list including an address of a second storage area in the second memory, in which data corresponding to the read command read from the storage device is stored temporarily, from the storage module. The invention further provides methods for treating tissue damaged by wound or burn, and methods for treating or repairing tissue at a surgical site.