Joint Signal and Topology Optimization for Maximum Instantaneous Field Intensity

TL;DR

This paper presents a convex optimization-based method to maximize instantaneous field intensity in antenna systems and other applications, considering system constraints and matching, enabling joint optimization of excitation and parameters.

Contribution

It introduces a novel convex optimization framework for joint signal and topology design to maximize peak field intensity in time-domain systems.

Findings

Effective maximization of peak radiation intensity in antennas.

Application to antiferromagnetic memory switching.

Joint optimization of excitation and system parameters.

Abstract

This paper introduces a computational approach to identify performance constraints in the time-domain, offering a way to design systems in pulse operation. This work presents a comprehensive application of convex optimization to determine fundamental bounds on time-domain waveforms. The approach is applied to arbitrarily polarized multiport antennas and arrays, demonstrating their capability in maximizing peak radiation intensity in a specified direction and time under energy constraints. This methodology allows us to consider matching, which is crucial in such applications. To highlight the generality of the approach, receiving systems are also studied on an example of maximizing the local field for antiferromagnetic memory switching. Thanks to its efficacy, this work enables joint optimization of excitation and system parameters.