M. Jalali, A. Abdipour, A. Tavakoli, G. Moradi , “Performance Amelioration of an Active Integrated Spiral Antenna System for UWB Applications", iWAT, 21-23 March 2007 Page(s):323 - 326

The publication is available to download form http://ieeexplore.ieee.org/xpl/tocresult.jsp?isnumber=4227376&isYear=2007