Results 41 to 50 of about 13,356 (166)

Pushing the Limits of PIN Photodiode Direct Detection: Integrate-and-Dump Receivers With CDS Equalization Closing the Gap to the Quantum Limit to 13.9 dB

IEEE Access
This paper presents a highly sensitive monolithic direct detection receiver with dot-cathode PIN photodiode, integrate-and-dump front-end, and correlated double sampling (CDS) equalization.
Christoph Gasser, Simon Michael Laube, Horst Zimmermann   +2 more
doaj   +1 more source

Microwave integrated circuits

Microelectronics Reliability, 1973
マイクロ波ICは, マイクロ波機器の小形・軽量化, 高信頼度化, 経済化を目的に開発されたもので, この数年間に著しい発展をとげた.製造技術の面にはまだ問題が残されているものの, 今後マイクロ波ICの適用により新たな需要が開かれ, 各分野での広い利用が期待されている.本文はマイクロ波ICを分布定数型と集中定数型に大別し, 基本的な構成素子の設計法, 高周波限界, 特徴などを中心に解説したものである.
openaire   +3 more sources

Reducing Avalanche Build-Up Time by Integrating a Single-Photon Avalanche Diode with a BiCMOS Gating Circuit

Sensors
It is shown that the integration of a single-photon avalanche diode (SPAD) together with a BiCMOS gating circuit on one chip reduces the parasitic capacitance a lot and therefore reduces the avalanche build-up time. The capacitance of two bondpads, which
Bernhard Goll, Mehran Saadi Nejad, Kerstin Schneider-Hornstein, Horst Zimmermann   +3 more
doaj   +1 more source

Higuchi Fractal Dimension of Heart Rate Variability During Percutaneous Auricular Vagus Nerve Stimulation in Healthy and Diabetic Subjects

Frontiers in Physiology, 2018
Analysis of heart rate variability (HRV) can be applied to assess the autonomic nervous system (ANS) sympathetic and parasympathetic activity. Since living systems are non-linear, evaluation of ANS activity is difficult by means of linear methods.
Ryszard S. Gomolka, Stefan Kampusch, Eugenijus Kaniusas, Florian Thürk, Jozsef C. Széles, Wlodzimierz Klonowski   +5 more
doaj   +1 more source

Low Junction Capacitance PIN and Avalanche Photodiodes in 180 nm CMOS

IEEE Access
This paper presents a comprehensive study of low-capacitance PIN photodiodes and avalanche photodiodes (APDs) implemented in 180 nm CMOS.
Christoph Gasser, Seyed Saman Kohneh Poushi, Simon Michael Laube, Kerstin Schneider-Hornstein, Horst Zimmermann   +4 more
doaj   +1 more source

Design of Dual-Mode Local Oscillators Using CMOS Technology for Motion Detection Sensors

Sensors, 2018
Recently, studies have been actively carried out to implement motion detecting sensors by applying radar techniques. Doppler radar or frequency-modulated continuous wave (FMCW) radar are mainly used, but each type has drawbacks.
Keum-Won Ha, Jeong-Yun Lee, Jeong-Geun Kim, Donghyun Baek   +3 more
doaj   +1 more source

Evaluation of reconstruction parameters of electrical impedance tomography on aorta detection during saline bolus injection

Current Directions in Biomedical Engineering, 2016
An accurate detection of anatomical structures in electrical impedance tomography (EIT) is still at an early stage. Aorta detection in EIT is of special interest, since it would favor non-invasive assessment of hemodynamic processes in the body.
Thürk Florian, Waldmann Andreas D., Wodack Karin H., Trepte Constantin J., Reuter Daniel, Kampusch Stefan, Kaniusas Eugenijus   +6 more
doaj   +1 more source

Ultra Sensitive PIN-Diode Receiver Utilizing Photocurrent Integration on a Parasitic Capacitance

IEEE Access
This work presents a highly sensitive monolithic optical receiver in $\mathrm {0.35~\mu m}$ CMOS. The integrator-based frontend employs periodic photocurrent integration on a parasitic capacitance in combination with an ultra-low-capacitance PIN ...
Christoph Gasser, Simon Michael Laube, Kerstin Schneider-Hornstein, Horst Zimmermann   +3 more
doaj   +1 more source

Accurate Microwave Circuit Co-Simulation Method Based on Simplified Equivalent Circuit Modeling. [PDF]

Micromachines (Basel), 2023
Kim S, Yoon WS, Lim J, Han SM.
europepmc   +1 more source

Device development guided by user satisfaction survey on auricular vagus nerve stimulation

Current Directions in Biomedical Engineering, 2016
Development of wearable point-of-care medical devices faces many challenges. Besides technological and clinical issues, demands on robustness, miniaturization, and user interface design are of paramount importance.
Kampusch Stefan, Kaniusas Eugenijus, Thürk Florian, Felten Dorian, Hofmann Ibolya, Széles Jozsef C.   +5 more
doaj   +1 more source