| Popis: |
One of last applications for UWB technology is breast tumor detection. In this detection system, the antenna has to work in frequencies ranging from 3 to 9GHz. In addition, the impulse response has to be short, with constant radiation pattern over the band and low return losses. One of the most promising antennas that can meet these design goals is the ultrawideband magnetic antenna. The behavior of this antenna in the 3-9 GHz range is presented in this paper. A V-model and the use of a back-absorber layer in order to improve its performance is analyzed. A prototype has been built and measured. |
