EMWorks has authored a featured article in the 2012 Spring version of Antenna Systems & Technology. The article is called: "Efficient Design and Analysis of an Ultrawideband Planar Antenna with Band Rejection in WLAN Frequencies".
The article describes the merits of the high frequency elctronic simulation software, HFWorks, in designing and optimizing the printed UWB antennas.
The article can be read here.