UWB Antenna for Specrum Monitoring Systems

A design of an axial symmetric UWB dipole antenna in the form of a rotation body with a generatrix of complex shape in the frequency range of 1-7 GHz are considered for spectrum monitoring system. Using the FEKO software, a search of optimal generatrix shape of the UWB antenna to provide the required broadband was made. A genetic algorithm is used for the optimization process. It is shown that the choice of optimization criterion allows to design an UWB antenna which is being meeting the specified requirements in the operating frequency band. Based on the results of modeling the UWB antenna, the design of such an antenna was developed and experimental studies were carried out, in particular, the frequency dependences of the voltage standing wave ratio (VSWR) and the gain were obtained. The correctness of the simulation results is confirmed by the results of experimental studies.