Aktuelle Publikationen

November 2025

Evaluation of a WR6.5 Rotary Joint with two 3D-printed TE01 Mode Transducers

Mathis Schmieder, Wilhelm Keusgen, Michael Peter, Sven Wittig, Steffen August Sigwart

This paper explores a WR6.5 rotary joint based on two 3D-printed mode transducers. Tests from 140 to 170 GHz show about 2 dB of insertion loss across a 16 GHz usable band (145-161 GHz) and less than 15 degree of phase variation, validating 3D...


November 2025

Dual-Beam Planar D-Band Antenna Array: Filtering Patch Antennas and Dielectric Lens

Vitor Carvalho De Almeida, Thomas Haustein, Wilhelm Keusgen, Michael Peter, Ramez Askar, Jaehoon Chung, Laurenz John, Yonghak Suh, Jongpil Lee, Mehmet Ahad Yurtoglu, Arnulf Leuther, Kim Woochan, Chulkyu Mun, Kim Jeongin

A hybrid analog beamforming at D-band is demonstrated by integration between an antenna array and a dielectric lens. The beam is collimated on one plane by the antenna array, and on the other by the elliptical lens profile. The antenna element is...


November 2025

15 GHz Independently Controllable Dual-Polarized 2-Bit Reconfigurable Intelligent Surface

Mehmet Ahad Yurtoglu, Wilhelm Keusgen, Michael Peter, Ramez Askar, Mathis Schmieder, Sven Wittig

Experience next-generation reconfigurable intelligent surfaces with a novel dual-polarized 2-bit RIS unit cell offering exceptional 55 dB cross-polarization isolation and 400 MHz bandwidth at 15 GHz. Featuring varactor-loaded bowtie elements and...


November 2025

Hardware realization of neuromorphic computing with a 4–port photonic reservoir for modulation format identification

Enes Seker, Colja Schubert, Ronald Freund, Isaac Sackey, Gregor Ronniger, Pooyan Safari, Guillermo von Hünefeld, Rijil Thomas, Stephan Suckow, Max Lemme, David Stahl, Mahdi Kaveh, Johannes Karl Fischer

We make a deep dive into the fabrication and testing of a photonic reservoir with digital readout. The developed neural network was tested for the identification of modulation formats at 32 Gbaud transmission rates, where it achieved a near-100%...


November 2025

Experimental Characterization of Photodiode Transmitters for Probabilistically Shaped High-Speed THz Wireless Transmission

In-Ho Baek, Martin Schell, Colja Schubert, Ronald Freund, Robert Elschner, Simon Nellen, Robert Kohlhaas, Oliver Stiewe, Jonas Gläsel, Garrit William Johannes Schwanke, Trung T. Tran

In this paper, we present an experimental investigation of two distinct THz transmitter architectures. While Terahertz (THz) wireless communication is key for 6G networks, a systematic performance comparison between different photonic-generated...


November 2025

3D-Aware Latent-Space Reenactment: Combining Expression Transfer and Semantic Editing

Paul Hinzer, Peter Eisert, Anna Hilsmann, Florian Tim Barthel

3D-LaSR introduces a new way to reenact 3D human heads by navigating the latent space of state-of-the-art Gaussian-splatting GANs, enabling smooth, realistic animations and cross-identity expression transfer from just a single monocular video. By...


November 2025

CGS-GAN: 3D Consistent Gaussian Splatting GANs for High Resolution Human Head Synthesis

Florian Tim Barthel, Peter Eisert, Anna Hilsmann, Wieland Morgenstern, Paul Hinzer

CGS-GAN enables, for the first time, stable, high-quality, and 3D-consistent head synthesis in 3D Gaussian Splatting GANs—without the view-conditioning that previously caused identity drift and inconsistencies. Through targeted multi-view...


November 2025

Intraoperative perfusion assessment by continuous, low-latency hyperspectral light-field imaging: development, methodology, and clinical application

Stefan Kray, Anna Hilsmann, Eric Wisotzky, Andreas Schmid, Moritz Gerlich, Sebastian Apweiler, Thomas Greiner, Werner Kneist

This study presents a hyperspectral light field system for intraoperative tissue oxygen saturation (????????2) analysis and visualization. We present a correlation method for determining SO2 saturation with low computational demands. We...


November 2025

Sub-THz MIMO Hybrid Beamforming: D-Band Dual-Channel Analog Beamforming Front-Ends Prototyping

Ramez Askar, Thomas Haustein, Michael Peter, Jaehoon Chung, Axel Tessmann, Laurenz John, Jongpil Lee, Mehmet Ahad Yurtoglu, Vitor Carvalho De Almeida, Arnulf Leuther, Kim Woochan, Chulkyu Mun, Yonghak Suh

Design and implementation of novel D-band (sub-THz) dual-channel (MIMO hybrid) beamforming wireless front-ends operating between 150 and 170 GHz. The system utilizes analog beamforming networks with two 16×16 microstrip Rotman lenses and dual...


November 2025

Real-Time Demonstration of Integrated Sensing and Communication in the Sub-Terahertz D-Band

Sven Wittig, Slawomir Stanczak, Michael Peter, Ramez Askar, Rodrigo Hernangómez

Real-time demonstration of an ultra-broadband (4 GHz) integrated sensing and communications (ISAC) system operating at 160 GHz in the upper D-band. The demonstration showcased quasi-monostatic sensing and a 4.9 Gbit/s communication link,...


Ergebnisse pro Seite10ǀ20ǀ30
Ergebnisse 1-10 von 423
<< < 1 2 3 4 5 6 7 8 > >>