3 citations · 3 across the 1 of their papers we have counts for
6 papers · 1 filter
Maximum Gain, Effective Area, and Directivity
Mats Gustafsson, Miloslav Capek
Fundamental bounds on antenna gain are found via convex optimization of the current density in a prescribed region. Various constraints are considered, including self-resonance and…
Quasi-Herglotz functions and convex optimization
Yevhen Ivanenko, Mitja Nedic, Mats Gustafsson +3
We introduce the set of quasi-Herglotz functions and demonstrate that it has properties useful in the modeling of non-passive systems. The linear space of quasi-Herglotz functions…
Fundamental bounds on transmission through periodically perforated metal screens with experimental validation
Andrei Ludvig-Osipov, Johan Lundgren, Casimir Ehrenborg +5
This paper presents a study of transmission through arrays of periodic sub-wavelength apertures. Fundamental limitations for this phenomenon are formulated as a sum rule, relating…
Optimal Planar Electric Dipole Antenna
Miloslav Capek, Lukas Jelinek, Kurt Schab +4
Considerable time is often spent optimizing antennas to meet specific design metrics. Rarely, however, are the resulting antenna designs compared to rigorous physical bounds on tho…
Shape Synthesis Based on Topology Sensitivity
Miloslav Capek, Lukas Jelinek, Mats Gustafsson
A method evaluating the sensitivity of a given parameter to topological changes is proposed within the method of moments paradigm. The basis functions are used as degrees of freedo…
Trade-off Between Antenna Efficiency and Q-Factor
Mats Gustafsson, Miloslav Capek, Kurt Schab
The trade-off between radiation efficiency and antenna bandwidth, expressed in terms of Q-factor, for small antennas is formulated as a multi-objective optimization problem in curr…