Overview of RLSA Antenna Design and Optimization Techniques developed at the University of Siena

In this paper, we present an overview of radial line slot array (RLSA) antenna design and optimization techniques developed in the past years at the University of Siena, both for near and far field applications at microwaves/millimeter waves. Moreover, also the possibility of generating localized pulses in time domain by means of RLSA is briefly sketched.