Koohestani, MohsenMoreira, Antonio A.Skrivervik, Anja2014-03-042014-03-042014-03-04201410.1109/APS.2014.6904740https://infoscience.epfl.ch/handle/20.500.14299/101379Since its introduction the fidelity concept has been used to evaluate the time behavior of UWB antennas. However, fidelity has been employed with different meanings. This paper clarifies the differences between fidelity factor, system fidelity factor, and fidelity factor of the system. A recently developed UWB antenna has been taken as a representative one to illustrate the differences among these concepts.Fidelity conceptsUltra-wideband (UWB)text::conference output::conference proceedings::conference paper