The ICUWB 2013 will provide a forum for the latest UWB systems, technologies and applications in both microwave and millimetre wave bands. The event will be held at the The Menzies Hotel in Sydney, Australia, from the 15th to 18th September 2013, and is hosted by CSIRO and Macquarie University. ICUWB 2013 is a continuation of a series of annual international UWB conferences held in Baltimore, Reston-VA, Oulu, Kyoto, Zürich, Waltham, Singapore, Hannover, Vancouver, Nanjing, Bologna and Syracuse, New York, from 2002 to 2012.