Search Results - "Siart, Uwe"

A Mixed Circular/Linear Dual-Polarized Phased Array Concept for Automotive Radar-Planar Antenna Designs and System Evaluation at 78 GHz by Hamberger, Gerhard F., Spath, Stefan, Siart, Uwe, Eibert, Thomas F.

“…A planar antenna array front end for automotive applications in the 78 GHz band is discussed and evaluated. Separate antenna arrays for transmit and receive…”
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New Insights into Dynamics of Wet Antenna Attenuation Based on In-Situ Estimations Provided by the Dedicated Field Experiment ATTRRA2 by Tiede, Jonas, Chwala, Christian, Siart, Uwe

“…Wet antenna attenuation (WAA) can cause significant overestimation of rainfall estimates from commercial microwave link (CML) data. Typically, WAA estimation…”
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Modeling of Wet Antenna Attenuation for Precipitation Estimation From Microwave Links by Moroder, Clemens, Siart, Uwe, Chwala, Christian, Kunstmann, Harald

“…This letter presents an analysis of wet antenna attenuation (WAA) from an electrodynamic perspective. The WAA is a relevant part of the path attenuation…”
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Microwave Instrument for Simultaneous Wet Antenna Attenuation and Precipitation Measurement by Moroder, Clemens, Siart, Uwe, Chwala, Christian, Kunstmann, Harald

“…Attenuation data from microwave links can be used to derive important near-ground precipitation estimates which complements observations from rain gauges and…”
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Multifrequency Phase Retrieval for Antenna Measurements by Knapp, Josef, Paulus, Alexander, Kornprobst, Jonas, Siart, Uwe, Eibert, Thomas F.

“…Phase retrieval problems in antenna measurements arise when a reference phase cannot be provided to all measurement locations. Phase retrieval algorithms…”
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A Planar Dual-Polarized Microstrip 1-D-Beamforming Antenna Array for the 24-GHz Band by Hamberger, Gerhard F., Trummer, Stefan, Siart, Uwe, Eibert, Thomas F.

“…A planar linearly dual-polarized mm-wave antenna array is designed, fabricated, and investigated in detail. The requirements are two orthogonal polarizations…”
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Fast Chirp Frequency-Modulated Continuous-Wave Reflectometer for Monitoring Fast Varying Discontinuities on Transmission Lines by Mohring, Bjorn N., Siart, Uwe, Eibert, Thomas F.

“…A portable fast chirp frequency-modulated continuous-wave (FMCW) reflectometer is presented to locate and monitor fast varying discontinuities or faults on…”
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A monostatic microwave transmission experiment for line integrated precipitation and humidity remote sensing by Chwala, Christian, Kunstmann, Harald, Hipp, Susanne, Siart, Uwe

“…Near-surface water vapor and precipitation are central hydrometeorological observables which are still difficult to quantify accurately above the point scale…”
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A Fast 3-D Deterministic Ray Tracing Coverage Simulator Including Creeping Rays Based On Geometry Voxelization Technique by Azodi, Hossein, Siart, Uwe, Eibert, Thomas F.

“…A deterministic ray tracing simulator is described in this work which conveniently fulfills the requirements of a radar coverage, i.e., field distribution,…”
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Real-Time Gesture Detection Based on Machine Learning Classification of Continuous Wave Radar Signals by Ehrnsperger, Matthias G., Brenner, Thomas, Hoese, Henri L., Siart, Uwe, Eibert, Thomas F.

“…Classical signal processing methodologies have been infiltrated by machine learning (ML) approaches for a long time, where the ML approaches are in particular…”
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A Self-Aligning Cylindrical Sliding Short Plunger for Millimeter-Wave Rectangular Waveguides and Its Application in a Reflection-Type Phase Shifter by Koenen, Christian, Siart, Uwe, Eibert, Thomas F., Conway, Garrard D.

“…A sliding short for millimeter-wave rectangular waveguides and its dedicated application in a reflection-type phase shifter are presented. The design of the…”
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Setup and Characterization of a Volumetric \boldsymbol -Band Near-Field Antenna Measurement System by Hamberger, Gerhard F., Koenen, Christian, Neitz, Ole, Mauermayer, Raimund A. M., Eisner, Christoph J., Siart, Uwe, Eibert, Thomas F.

“…A volumetric <inline-formula> <tex-math notation="LaTeX">W </tex-math></inline-formula>-band near-field (NF) antenna measurement system is presented and…”
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Electric Field Homogeneity Optimization by Dielectric Inserts for Improved Material Sensing in a Cavity Resonator by Faz, Usman, Siart, Uwe, Eibert, Thomas F., Hermann, Tobias

“…A TM010 mode cylindrical cavity is employed as the main sensing element to characterize variable density compositions of material streams, for example, paper,…”
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Broadband, Fast, and Linear Chirp Generation Based on DDS for FMCW Radar Applications by Mohring, Bjorn, Moroder, Clemens, Siart, Uwe, Eibert, Thomas

“…A broadband chirp generator for a linear frequency modulated continuous wave (FMCW) signal based on direct digital synthesis (DDS) is presented. This…”
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Setup and Characterization of a Volumetric [Formula Omitted]-Band Near-Field Antenna Measurement System by Hamberger, Gerhard F, Koenen, Christian, Neitz, Ole, Mauermayer, Raimund A M, Eisner, Christoph J, Siart, Uwe, Eibert, Thomas F

“…A volumetric [Formula Omitted]-band near-field (NF) antenna measurement system is presented and evaluated. The system supports measurements at arbitrary…”
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A Configurable Coupling Structure for Broadband Millimeter-Wave Split-Block Networks by Koenen, Christian, Siart, Uwe, Eibert, Thomas F., Conway, Garrard D., Stroth, Ulrich

“…In order to realize series-fed millimeter-wave hollow waveguide array antennas, small slots or holes can be used to couple a defined amount of power from the…”
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A Low-Reflectivity Vacuum Window for Rectangular Hollow Waveguides by Koenen, Christian, Hamberger, Gerhard F., Siart, Uwe, Eibert, Thomas F., Nickel, Hans-Ulrich, Conway, Garrard D., Stroth, Ulrich

“…The design and performance of a broadband and low-reflectivity millimeter-wave vacuum window for rectangular hollow waveguides are presented. A reflectivity…”
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Dynamic Eigenimage Based Background and Clutter Suppression for Ultra Short-Range Radar by Ehrnsperger, Matthias G, Noll, Maximilian, Punzet, Stefan, Siart, Uwe, Eibert, Thomas F

“…Background and clutter suppression techniques are important towards the successful application of radar in complex environments. We investigate eigenimage…”
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A monostatic microwave transmission experiment for line integrated precipitation and humidity remote sensing: Perspectives of Precipitation Science - Part II by CHWALA, Christian, KUNSTMANN, Harald, HIPP, Susanne, SIART, Uwe

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Regularized 1-D Dielectric Profile Inversion in a Uniform Metallic Waveguide by Measurement and Simulation by Kilic, E., Siart, U., Eibert, T. F.

“…An iterative technique for the reconstruction of longitudinally inhomogeneous lossy dielectric material loaded in a uniform metallic waveguide is addressed in…”
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