Ultra-wide-band systems


Prof. Werner Wiesbeck and Dipl.-Ing. Christian Sturm
Institut für Höchstfrequenztechnik und Elektronik, Universität Karlsruhe (TH)

20 hours, 5 credits (final test)

July 2 - July 5, 2007
Dipartimento di Ingegneria dell'Informazione: Elettronica, Informatica, Telecomunicazioni, via G. Caruso, meeting room, ground floor

Contacts: Prof. Giuliano Manara



Spectrum is presently one of the most valuable goods worldwide as the demand is permanently increasing and it can be traded only locally. Since the United States FCC has opened the spectrum from 3.1 GHz to 10.6 GHz, i.e. a bandwidth of 7.5 GHz, and the EC from 6.0 GHz to 8.5 GHz, for unlicensed use with up to –41.25 dBm/MHz EIRP, numerous applications in communications and sensor areas are showing up. All these applications have in common that they spread the necessary energy over a wide frequency range in this unlicensed band in order to radiate below the limit. The results are ultra wideband systems. These new devices exhibit especially at the air interface, the antenna quite surprising behaviors. This series of lessons present an insight into design, evaluation and measurement procedures for Ultra Wide Band (UWB-) antennas as well as into the characteristics of the UWB radio channel as a whole. The lessons are rounded up with state of the art information regarding UWB systems in the fields of communications, sensor networks and security aspects.

Addressed audience

Students working in communication and information technologies, radar and sensor networks, active or passive microwaves, and security related areas


This series of lessons will transfer a thorough understanding of the characterization, differences, advantages and drawbacks of Ultra-Wide-Band techniques and technologies in all presently foreseen areas of applications, compared to state of the art narrow band applications. They are aimed at an understanding of the basics and different applications. These may be in communications and information technologies, sensors and radar, active and passive security, principles of propagation and interference (airborne, space-borne and ground-based) as well as measurement techniques.