We deal with one of the computationally most critical steps of the Phase-Only synthesis of aperiodic reflectarrays, namely, the fast evaluation of the radiation operator. We present an approach exploiting the use of a fast numerical algorithm using 2D Non-Uniform FFTs (NUFFTs) of NED (Non-Equispaced Data) type and of parallel processing on Graphics Processing Units (GPUs). A fast GPU-implementation of the NUFFT routine is achieved by exploiting a polynomial representation of the spatial and spectral windows and using the Horner polynomial calculation scheme.Numerical result highlight the performance of the developed approach.
Radiation from aperiodic reflectarrays using optimized NUFFTs / Capozzoli, A.; Curcio, C.; Liseno, A.. - (2022), pp. 585-586. (Intervento presentato al convegno 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022 tenutosi a usa nel 2022) [10.1109/AP-S/USNC-URSI47032.2022.9886869].
Radiation from aperiodic reflectarrays using optimized NUFFTs
Capozzoli A.;Curcio C.;Liseno A.
2022
Abstract
We deal with one of the computationally most critical steps of the Phase-Only synthesis of aperiodic reflectarrays, namely, the fast evaluation of the radiation operator. We present an approach exploiting the use of a fast numerical algorithm using 2D Non-Uniform FFTs (NUFFTs) of NED (Non-Equispaced Data) type and of parallel processing on Graphics Processing Units (GPUs). A fast GPU-implementation of the NUFFT routine is achieved by exploiting a polynomial representation of the spatial and spectral windows and using the Horner polynomial calculation scheme.Numerical result highlight the performance of the developed approach.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
