Ullrich R. Pfeiffer

University of Wuppertal — Germany

Engineering · Physical Sciences

48h-index9.1kcitations306works1.32yr avg
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Research Topics

Radio Frequency Integrated Circuit Design(150), Terahertz technology and applications(102), Microwave Engineering and Waveguides(90), Photonic and Optical Devices(87), Superconducting and THz Device Technology(84)

Publications306 total

A J-Band Low-Noise Amplifier with 100+ GHz 3-dB Bandwidth in a 130-nm SiGe BiCMOS Technology
2025
An Integrated Terahertz Near-Field Edge Sensing Probe in a $130-\text{nm}$ Sige Technology
2025
A $320 \text{GHz}\ 32 \times 32$ Pixel Near-Field Sensor SoC for Real-Time Imaging in $130-\text{nm}$ SiGe BiCMOS
2025
3D-Printed Alumina Ceramics for THz Lens Applications
2025
A 206–220-GHz Compact Fundamental Oscillator With up to 7-dBm Output Power and 7.4% Peak DC-to-RF Efficiency in a 130-nm SiGe Technology
IEEE Microwave and Wireless Technology Letters·2025Open Access
An Ultra-broadband Multi-color SiGe transmitter for THz Spectroscopy
2025
Triple-Band Antenna-Coupled Terahertz Direct Detectors in a 0.13-µm SiGe HBT Technology
2025
High-Sensitive Broadband Terahertz Detectors for Hyperspectral Imaging
2024
Coupled Basis Pursuit for 3D Terahertz Video Reconstruction
2024
Single-Shot Computational THz 3D Imaging
2024· 1 cited
Coarse-to-Fine Sparse 3-D Reconstruction in THz Light Field Imaging
IEEE Sensors Letters·2024· 1 cited
Evaluation of Additively Manufactured Axicon Lenses Using a THz-Camera
2024· 1 cited
Towards Passive Imaging With Uncooled, Low-NEP SiGe HBT Terahertz Direct Detectors
IEEE Transactions on Terahertz Science and Technology·2024· 5 citedOpen Access
An On-Chip Antenna-Coupled Preamplified D-Band to J-Band Total Power Radiometer Chip in 130 nm SiGe BiCMOS Technology
2024· 3 cited
A 300 GHz x9 Multiplier Chain With 9.6 dBm Output Power in 0.13-μm SiGe Technology
2024· 8 cited
Silicon-Based 3-D Imaging with Terahertz Light-Field
2024· 1 cited
Terahertz Light-Field Imaging With Silicon Technologies
IEEE Open Journal of the Solid-State Circuits Society·2023· 8 citedOpen Access
Enabling fast polarization THz imaging using broadband dual-polarization SiGe HBT detectors
2023
A Wideband W-Band Frequency Tripler With a Novel Mode-Selective Filter for High Harmonic Rejection
2023· 6 cited
On Cold Operation of an SiGe HBT as a Broadband Low-NEP THz Direct Detector
2023· 3 cited
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Frequent Co-authors

Janusz Grzyb(18), Erik Öjefors(13), B. Heinemann(12), Yan Zhao(7), Scott Reynolds(6), B. Gaucher(6), Alvydas Lisauskas(5), Hartmut G. Roskos(5), Hani Sherry(5), Brian Floyd(5), Thomas Zwick(5), Neelanjan Sarmah(5), Andreas Kaiser(4), Philipp Hillger(4), Diana Glaab(4), Richard Al Hadi(4), Richard Al Hadi(3), T. Beukema(3), Pedro Rodríguez-Vázquez(3), Konstantin Statnikov(3)