The combination of a Vivaldi slot and a meander line loaded antenna is provided which exhibits an ultra wideband characteristic with the Vivaldi notch expanding the high end and with the meander line loaded antenna portion reducing the low frequency cut-off. The pharmacy network prepares orders for medication from various customers for various patients. The system allows grasping and manipulation of the tissue to achieve proper location and tension on the tissue, and also attachment of the tissue to the bone after the desired location and tension are achieved. DC balancing is achieved by introducing feedback loop into the controller which attempts to reduce the number stored in the memory to zero, for each picture element by applying one or more high voltage short pulses with a polarity opposite to the number stored in the memory.