Blar i USN Open Archive på forfatter "Nowbahari, Arian"
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Analysis of a Low Power Inverting CMOS Schmitt Trigger Operating in Weak Inversion
Nowbahari, Arian; Marchetti, Luca; Azadmehr, Mehdi (Peer reviewed; Journal article, 2022)This article analyzes the operation of a low power inverting CMOS Schmitt trigger in weak inversion. The analysis is based on an earlier proposed analytical model, which relates the hysteresis voltages to the transistors' ... -
Analysis of an Approximated Model for the Depletion Region Width of Planar Junctionless Transistors
Nowbahari, Arian; Roy, Avisek; Akram, Muhammad Nadeem; Marchetti, Luca (Peer reviewed; Journal article, 2019)In this paper, we investigate the accuracy of the approximated analytical model currently utilized, by many researchers, to describe the depletion region width in planar junctionless transistors (PJLT). The proposed analysis ... -
Broadband Vibration-Based Energy Harvesting for Wireless Sensor Applications Using Frequency Upconversion
Li, Jinglun; Ouro-Koura, Habilou; Arnow, Hannah; Nowbahari, Arian; Galarza, Matthew; Obispo, Meg; Tong, Xing; Azadmehr, Mehdi; Halvorsen, Einar; Hella, Mona M.; Tichy, John A.; Borca-Tasciuc, Diana-Andra (Peer reviewed; Journal article, 2023)Silicon-based kinetic energy converters employing variable capacitors, also known as electrostatic vibration energy harvesters, hold promise as power sources for Internet of Things devices. However, for most wireless ... -
Low Noise Amplifier Design for Hybrid Ultrasound CMUT/PZT Probes
Matti, Opeyemi Saheed (Master thesis, 2023)This thesis focuses on the analysis and design of low-noise amplifiers (LNAs) specifically tailored for medical ultrasound imaging. The objective is to develop amplifiers that can effectively sense signals from a Capacitive ... -
Low Power Circuits and Architectures for Wireless Sensor Networks
Nowbahari, Arian (Doctoral dissertations at the University of South-Eastern Norway;166, Doctoral thesis, 2023)Wireless sensor networks (WSNs), due to their multidisciplinary applications, represent one of the main enabling technologies of the Internet-of-Things paradigm. These networks, consisting of sensor nodes characterized by ... -
Nano-Power Monostable-Based Wake-Up Mechanism for Wireless Sensor Networks
Nowbahari, Arian; Marchetti, Luca; Azadmehr, Mehdi (Chapter, 2022)Wireless sensor networks (WSNs) generally consist of thousands of sensor nodes, each one supplied by a battery or harvested energy. To prolong the lifetime of wireless sensor networks, wake-up receivers (WuRxs) are typically ... -
An Oscillator-Based Wake-Up Receiver for Wireless Sensor Networks
Nowbahari, Arian; Marchetti, Luca; Azadmehr, Mehdi (Chapter, 2021)The Internet of Things (IoT) concept is mainly enabled by wireless sensor networks (WSNs), which are continuously gaining attention, due to their multidisciplinary applications. To enhance the WSNs energy efficiency, ... -
Subthreshold Modeling of a Tunable CMOS Schmitt Trigger
Nowbahari, Arian; Marchetti, Luca; Azadmehr, Mehdi (Journal article; Peer reviewed, 2023)In this article, the subthreshold characteristics of a tunable single input CMOS Schmitt trigger (ST) are modeled for the first time. The high-to-low and low-to-high hysteresis transition points are analytically determined ... -
An Ultra-Low Power Multivibrator-Based Wake-up Receiver for Wireless Sensor Networks
Nowbahari, Arian; Marchetti, Luca; Azadmehr, Mehdi (Chapter, 2021)In recent years wireless sensor networks (WSNs) have gained significant attention because of their implementation in many different fields. As the nodes in WSNs are typically battery-powered, their lifetime is mainly limited ... -
Weak Inversion Model of an Inverting CMOS Schmitt Trigger
Nowbahari, Arian; Marchetti, Luca; Azadmehr, Mehdi (Chapter, 2022)In this article the subthreshold characteristics of an inverting single input CMOS Schmitt trigger circuit are analyzed. Analytical expressions for the low-to-high and high-to-low hysteresis transition voltages are determined. ...