Boutheina Tlili,  “Characterization of Small-size Microstrip Patch Antennas for Wireless Applications", Antennas and Propagation Conference, 2007, Loughborough, 2-3 April 2007 Page(s):181 - 184

The publication is available to download from http://ieeexplore.ieee.org/xpl/tocresult.jsp?isnumber=4218444&isYear=2007