Numerical optimization of planar antenna structures using trust-region algorithm with adaptively adjusted finite differences

The dataset contains initial designs and optimization results for three planar structures that include quasi-patch antenna for WLAN applications, compact spline-parameterized monopole dedicated for ultra-wideband applications, as well as rectifier for energy harvesting with enhanced bandwidth. The numerical results for the first two structures are also supplemented with vector-based outlines of the optimized topologies. The dataset represents a part of the results published in IEEE Internet of Things Journal (https://doi.org/10.1109/JIOT.2023.3234107)