101 citations · 301 across the 12 of their papers we have counts for
12 papers
Reliable Linearized Phase Retrieval for Near-Field Antenna Measurements with Truncated Measurement Surfaces
Alexander Paulus, Josef Knapp, Jonas Kornprobst +1
Most methods tackling the phase retrieval problem of magnitude-only antenna measurements suffer from unrealistic sampling requirements, from unfeasible computational complexities,…
Multi-Frequency Phase Retrieval for Antenna Measurements
Josef Knapp, Alexander Paulus, Jonas Kornprobst +2
Phase retrieval problems in antenna measurements arise when a reference phase cannot be provided to all measurement locations. Phase retrieval algorithms require sufficiently many…
Compact Uniform Circular Quarter-Wavelength Monopole Antenna Arrays with Wideband Decoupling and Matching Networks
Jonas Kornprobst, Thomas J. Mittermaier, Raimund A. M. Mauermayer +7
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…
A Millimeter-Wave Self-Mixing Array with Large Gain and Wide Angular Receiving Range
Jonas Kornprobst, Thomas J. Mittermaier, Thomas F. Eibert
The concept of self-mixing antenna arrays is presented and analyzed with respect to its beneficial behavior of large gain over a wide angular range. The large gain is attained by a…
A mm-Wave Patch Antenna with Broad Bandwidth and a Wide Angular Range
Jonas Kornprobst, Kun Wang, Gerhard Hamberger +1
A novel mm-wave microstrip-fed patch antenna with broad bandwidth and wide angular coverage suitable for integration in planar arrays is designed, analyzed and verified by measurem…
Linear Phase Retrieval for Near-Field Measurements with Locally Known Phase Relations
Alexander Paulus, Jonas Kornprobst, Josef Knapp +1
A linear and thus convex phase retrieval algorithm for the application in phaseless near-field far-field transformations is presented. The formulation exploits locally known phase…
A Combined Source Integral Equation with Weak Form Combined Source Condition
Jonas Kornprobst, Thomas F. Eibert
A combined source integral equation (CSIE) is constructed on the basis of the electric field integral equation (EFIE) to solve electromagnetic radiation and scattering problems con…
A Weak-Form Combined Source Integral Equation with Explicit Inversion of the Combined-Source Condition
Jonas Kornprobst, Thomas F. Eibert
The combined source integral equation (CSIE) for the electric field on the surface of a perfect electrically conducting scatterer can be discretized very accurately with lowest-ord…
An Accurate Low-Order Discretization Scheme for the Identity Operator in the Magnetic Field and Combined Field Integral Equations
Jonas Kornprobst, Thomas F. Eibert
A new low-order discretization scheme for the identity operator in the magnetic field integral equation (MFIE) is discussed. Its concept is derived from the weak-form representatio…
Improved Discretization of the Full First-Order Magnetic Field Integral Equation
Jonas Kornprobst, Alexander Paulus, Thomas F. Eibert
The inaccuracy of the classical magnetic field integral equation (MFIE) is a long-studied problem. We investigate one of the potential approaches to solve the accuracy problem: hig…
Accuracy and Conditioning of Surface-Source Based Near-Field to Far-Field Transformations
Jonas Kornprobst, Josef Knapp, Raimund A. M. Mauermayer +3
The conditioning and accuracy of various inverse surface-source formulations are investigated. First, the normal systems of equations are discussed. Second, different implementatio…
Phase Retrieval for Partially Coherent Observations
Jonas Kornprobst, Alexander Paulus, Josef Knapp +1
Phase retrieval is in general a non-convex and non-linear task and the corresponding algorithms struggle with the issue of local minima. We consider the case where the measurement…