8 papers
Physical Bounds on Optical Micromanipulation: Maximal Stiffness in the Dipole Regime
Martin Zlabek, Jakub Liska, Lukas Jelinek +1
Optical trapping and micromanipulation rely on carefully shaped electromagnetic fields to exert precise forces and torques on microscopic particles. Despite their widespread applic…
Towards Manufacturing-Friendly Shapes in Discrete Topology Optimization
Vojtech Neuman, Miloslav Capek, Lukas Jelinek
This paper deals with shape irregularity issues in discrete topology optimization algorithms whereby the design is created using the automated distribution of material in the desig…
Multiport Antenna Q-factor
Vojtech Neuman, Miloslav Capek, Lukas Jelinek
This article proposes an estimate of multiport antenna bandwidth based on a generalization of a single-port Q-factor. The explicit derivation is based on converting the stored ener…
Joint Signal and Topology Optimization for Maximum Instantaneous Field Intensity
Jakub Liska, Lukas Jelinek, Miloslav Capek
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 com…
Optimization of Embedded Element Patterns of Reactively Loaded Antenna Arrays
Albert Salmi, Miloslav Capek, Lukas Jelinek +2
This paper introduces a framework for synthesizing reactively loaded antennas and antenna arrays. The framework comprises two main components: computing the fundamental bound using…
Density-Based Topology Optimization for Characteristic Modes Manipulation
Jonas Tucek, Miloslav Capek, Lukas Jelinek
A density-based topology optimization framework is developed to manipulate characteristic modes of conducting surfaces. The adjoint sensitivity analysis provides an efficient compu…