Work

Density-Based Topology Optimization in Method of Moments: Q-Factor Minimization

Year: 2023

Type: article

Abstract: Classical gradient-based density topology optimization is adapted for method-of-moments numerical modeling to design a conductor-based system attaining the minimal antenna Q-factor evaluated via an energy stored operator. Standard topology optimization features are discussed, e.g., interpolation scheme and density and projection filtering. The performance of the proposed technique is demonstrated in a few examples in terms of the realized Q-factor values and necessary computational time to obtain a design. The optimized designs are compared to the fundamental bound and well-known empirical structures. The presented framework can provide a completely novel design, as presented in the second example.

Source: IEEE Transactions on Antennas and Propagation

DOI: 10.1109/tap.2023.3321373

Authors: Jonas Tucek, Miloslav Capek, Lukas Jelinek, Ole Sigmund

Institutions: Czech Technical University in Prague, Technical University of Denmark

Language: English

Topic: Topology Optimization in Engineering

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: České Vysoké Učení Technické v Praze, Villum Fonden, Grantová Agentura České Republiky

Awards: Optimal Electromagnetic Design Based on Exact Reanalysis, G6037805920