no code implementations • 20 Sep 2021 • Alexander Paulus, Josef Knapp, Jonas Kornprobst, Thomas F. Eibert
Most methods tackling the phase retrieval problem of magnitude-only antenna measurements suffer from unrealistic sampling requirements, from unfeasible computational complexities, and, most severely, from the lacking reliability of nonlinear and nonconvex formulations.
no code implementations • 20 May 2021 • Josef Knapp, Alexander Paulus, Jonas Kornprobst, Uwe Siart, Thomas F. Eibert
Phase retrieval problems in antenna measurements arise when a reference phase cannot be provided to all measurement locations.
no code implementations • 19 May 2021 • Jonas Kornprobst, Thomas J. Mittermaier, Raimund A. M. Mauermayer, Gerhard F. Hamberger, Matthias G. Ehrnsperger, Bernhard Lehmeyer, Michel T. Ivrlac, Ulrik Imberg, Thomas F. Eibert, Josef A. Nossek
Two novel decoupling and matching networks (DMNs) in microstrip technology for three-element uniform circular arrays (UCAs) are investigated and compared to a more conventional DMN approach with simple neutralization lines.
no code implementations • 18 May 2021 • Jonas Kornprobst, Thomas J. Mittermaier, Thomas F. Eibert
The large gain is attained by an antenna array with large element spacing, where all array element signals are combined approximately coherently over the entire angular receiving range.
no code implementations • 17 May 2021 • Jonas Kornprobst, Kun Wang, Gerhard Hamberger, Thomas F. Eibert
The wide half power beamwidth is achieved by suitably designed parasitic patches for the first resonant mode.
no code implementations • 12 Nov 2020 • Alexander Paulus, Jonas Kornprobst, Josef Knapp, Thomas F. Eibert
A linear and thus convex phase retrieval algorithm for the application in phaseless near-field far-field transformations is presented.
no code implementations • 7 Feb 2020 • Jonas Kornprobst, Alexander Paulus, Josef Knapp, Thomas F. Eibert
We propose several formulations of the corresponding phase retrieval problem.