We consider the problem of finding an array of antennas that provides a desired distribution of signal strength in an urban environment. Our approach is based on a discretized Maxwell equation for the electromagnetic field. This equation can be solved numerically and provides training samples for a deep learning algorithm. Finally, the deep learning algorithm, based on a multi layer perceptron, is used to retrieve antenna arrays for a desired signal distribution. In our example we obtain for the retrieval a mean success rate of 90%.