WHITTOW, W.G., 2012. Microstrip patch antennas with 3-dimensional substrates. 2012 Loughborough Antennas & Propagation Conference, Loughborough, UK, 12-13 November 2012.
This paper investigates the concept of replacing conventional flat 2-D patch antennas with 3-D versions where the substrate height is not uniform. The hypothesis of this work is that the electric fields are not evenly distributed under the patch and hence increasing the height in specific locations can be beneficial in terms of size of performance.