Results 21 to 30 of about 13,356 (166)
Integrated fiber optical receiver reducing the gap to the quantum limit
Scientific Reports, 2017 Experimental results of a single-photon avalanche diode (SPAD) based optical fiber receiver integrated in 0.35 µm PIN-photodiode CMOS technology are presented. To cope with the parasitic effects of SPADs an array of four receivers is implemented.
Horst Zimmermann +3 more
doaj +1 more source
Modeling and Analysis of BER Performance in a SPAD-Based Integrated Fiber Optical Receiver
IEEE Photonics Journal, 2018 An analytical approach to model and analysis of the bit-error ratio (BER) performance in multi-single photon avalanche diode (SPAD) optical receivers is presented.
Hiwa Mahmoudi +4 more
doaj +1 more source
Sensors, 2022 The localization of internet of things (IoT) nodes in indoor scenarios with strong multipath channel components is challenging. All methods using radio signals, such as received signal strength (RSS) or angle of arrival (AoA), are inherently prone to ...
Daniel Neunteufel +2 more
doaj +1 more source
Avalanche Transients of Thick 0.35 µm CMOS Single-Photon Avalanche Diodes
Micromachines, 2020 Two types of single-photon avalanche diodes (SPADs) with different diameters are investigated regarding their avalanche behavior. SPAD type A was designed in standard 0.35-µm complementary metal-oxide-semiconductor (CMOS) including a 12-µm thick p- epi ...
Bernhard Goll +2 more
doaj +1 more source
Sensors, 2021 An 18.8–33.9 GHz, 2.26 mW current-reuse (CR) injection-locked frequency divider (ILFD) for radar sensor applications is presented in this paper. A fourth-order resonator is designed using a transformer with a distributed inductor for wideband operating ...
Kwang-Il Oh +3 more
doaj +1 more source
A Broadband High-Gain Circularly Polarized Wide Beam Scanning Leaky-Wave Antenna
IEEE Access, 2020 A new type of broadband circularly polarized leaky-wave antenna (LWA) with high-gain based on a corrugated substrate integrated waveguide (CSIW) structure is proposed and investigated.
Yiming Zhang +6 more
doaj +1 more source
100 MHz current generator with T/(T − t) time waveform in 0.35 μm BiCMOS technology
Electronics Letters, 2016 A 0.35 μm BiCMOS current generator suitable for optical quantum random number generators is presented. The time dependence of the current pulses is of the form T/(T − t).
N. Tadić, B. Goll, H. Zimmermann
doaj +1 more source
Multi-Channel PWM Heater Control Chip in 0.18 μm High-Voltage CMOS for a Quantum Simulator
IEEE Photonics JournalA circuit to control heating resistors with a pulse-width modulated (PWM) signal for a photonic quantum simulator is introduced. The output voltage is switched on for a changeable specified time and switched off for the rest of the period.
Christoph Ribisch +5 more
doaj +1 more source
Relying on more sense for enhancing lower limb prostheses control: a review
Journal of NeuroEngineering and Rehabilitation, 2020 Modern lower limb prostheses have the capability to replace missing body parts and improve the patients’ quality of life. However, missing environmental information often makes a seamless adaptation to transitions between different forms of locomotion ...
Michael Tschiedel +2 more
doaj +1 more source
IEEE Access, 2019 In this paper, an output capacitor-less low-dropout (LDO) regulator with 99.99% current efficiency using active feedforward compensation (AFFC) and reverse nested Miller compensation (RNMC) is implemented.
Gwang Sub Kim +3 more
doaj +1 more source