Two-stage variable-fidelity modeling of antennas with domain confinement
Surrogate modeling has become the method of choice in solving an increasing number of
antenna design tasks, especially those involving expensive full-wave electromagnetic (EM) …
antenna design tasks, especially those involving expensive full-wave electromagnetic (EM) …
Maximum gain, effective area, and directivity
M Gustafsson, M Capek - IEEE Transactions on Antennas and …, 2019 - ieeexplore.ieee.org
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 …
density in a prescribed region. Various constraints are considered, including self-resonance …
On the maximum end-fire directivity of compact antenna arrays based on electrical dipoles and Huygens sources
This article investigates the superdirectivity limits of end-fire linear arrays based on closely
spaced radiating elements. First, directivity upper bounds have been derived analytically in …
spaced radiating elements. First, directivity upper bounds have been derived analytically in …
Knowledge-based performance-driven modeling of antenna structures
S Koziel, A Pietrenko-Dabrowska - Knowledge-Based Systems, 2022 - Elsevier
The importance of surrogate modeling techniques in the design of modern antenna systems
has been continuously growing over the recent years. This phenomenon is a matter of …
has been continuously growing over the recent years. This phenomenon is a matter of …
Radio frequency exposure compliance of multiple antennas for cellular equipment based on semidefinite relaxation
Human exposure to radio frequency (RF) electromagnetic fields should not exceed the
exposure limits set by the relevant regulatory guidelines. In this paper, we provide …
exposure limits set by the relevant regulatory guidelines. In this paper, we provide …
Q-factor bounds for microstrip patch antennas
BAP Nel, AK Skrivervik… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Antenna bounds are a useful tool in assessing the feasibility or performance of an antenna
design. Microstrip patch antennas are often limited by their relatively narrow bandwidth, and …
design. Microstrip patch antennas are often limited by their relatively narrow bandwidth, and …
Optimal planar electric dipole antennas: Searching for antennas reaching the fundamental bounds on selected metrics
Considerable time is often spent optimizing antennas to meet specific design metrics.
Rarely, however, are the resulting antenna designs compared to rigorous physical bounds …
Rarely, however, are the resulting antenna designs compared to rigorous physical bounds …
A convex optimization approach for the design of supergain electrically small antenna and rectenna arrays comprising parasitic reactively loaded elements
A Georgiadis, NB Carvalho - IEEE Transactions on Antennas …, 2022 - ieeexplore.ieee.org
A convex optimization formulation is provided for antenna arrays comprising reactively
loaded parasitic elements. The objective function consists of maximizing the array gain …
loaded parasitic elements. The objective function consists of maximizing the array gain …
Fundamental bounds on MIMO antennas
C Ehrenborg, M Gustafsson - IEEE Antennas and Wireless …, 2017 - ieeexplore.ieee.org
Antenna current optimization is often used to analyze the optimal performance of antennas.
Antenna performance can be quantified in, eg, minimum Q-factor and radiation efficiency …
Antenna performance can be quantified in, eg, minimum Q-factor and radiation efficiency …
Q-Bounded Maximum Directivity of Self-Resonant Antennas
The upper limit on the directivity of self-resonant antennas that fit within a minimum sphere is
determined for a given quality factor. This formulation is obtained by analytically solving a …
determined for a given quality factor. This formulation is obtained by analytically solving a …