UWB Active Integrated Antenna Design and Simulation

UWB technology is advancing rapidly because of its potential to have high data rates and very low radiation power. However, there are still problems in making this technology fully developed. Design of efficient ultra wide band antenna is one of the most important challengers in the UWB systems improvement. Integration of active device into passive antenna gives a lot of advantages which can totally improve antenna performance. In this paper, design and simulation of an antenna for UWB system was done by using active integrated antennas (AIA) technology. Here specifications of a passive spiral antenna were optimized by using a distributed amplifier as an active circuit. Results showed considerable improvement in active antenna parameters in compare with passive one.