Dr. Ahmed Soltan

Director of Nanoelectronics Integrated Systems Center (NISC)

Faculty Building

UB2

Office Number

S17

Biography

Ahmed Soltan received the B.Sc. and M.Sc. degrees from the University of Cairo, Cairo, Egypt, in 2004 and 2008, respectively. He received the Ph.D. degree in electronics and communication from Cairo University in 2014. He received the 2014–2016 best thesis award from Cairo for his Ph.D. thesis. He worked on circuit and system design and modelling in the fractional order domain during his Ph.D. research. He is currently an associate professor at Nile University, Egypt. He was a Research Associate and EDA/CAD Specialist with the School of Engineering, Newcastle University, Newcastle upon Tyne, U.K. He was a Teacher Assistant with the faculty of Engineering, Fayoum University, Fayoum, Egypt, for nine years and was an R&D Firmware Engineer for eight years. He also was an R&D Manager for an LED company at Qatar for one year and a half. His current research interests include smart energy harvesting systems and power management for biomedical implantable devices and lab-on-chip systems.

He is interested in the thermal impact of the implantable devices on human tissues, embedded system design for lab-on-chip system, the investigation of fractional circuits and systems, specifically in fractional order analog filters for signal processing, and fractional order modelling for biomedical applications. Dr. Soltan’s research aims to establish a new healthcare monitoring system and diagnosis on the fly by the development of autonomous devices. Dr. Soltan published more than 60 papers in a prestige journals. He got the award the best thesis award from Cairo University for 2014 and he got the State Encouragement Award in Egypt 2019 for his contribution in the field of biomedical research in Egypt and worldwide. He is won a Fellowship from Royal Academy of Engineering in Leaders in Innovations (LIF) and he is a fellow from the higher Academy of Education in the UK.

Recent Publications

A 26.24uW 9.26-ENOB Dynamic RAM Based SAR ADC for Biomedical Applications

This work introduces a new successive approximation register circuit (SAR) for SAR analog to digital converter (ADC) based on Dynamic Random Access Memory (DRAM) cells. Based on the proposed DRAM based SAR ADC and a differential capacitive DAC, a 10-bit 2V ADC is designed in 0.18um CMOS technology. The proposed SAR is compared to traditional SAR to verify that the proposed SAR decreases the power

Circuit Theory and Applications

Study of Energy Harvesters for Wearable Devices

Energy harvesting was and still an important point of research. Batteries have been utilized for a long time, but they are now not compatible with the downsizing of technology. Also, their need to be recharged and changed periodically is not very desirable, therefore over the years energy harvesting from the environment and the human body have been investigated. Three energy harvesting methods

Artificial Intelligence
Healthcare
Circuit Theory and Applications
Innovation, Entrepreneurship and Competitiveness

Fractional order Chebyshev-like low-pass filters based on integer order poles

Chebyshev filter is one of the most commonly used prototype filters that approximate the ideal magnitude response. In this paper, a simple and fast approach to create fractional order Chebyshev-like filter using its integer order poles is discussed. The transfer functions for the fractional filters are developed using the integer order poles from the traditional filter. This approach makes this

Circuit Theory and Applications

Analysis and Design of Fractional-order Low-pass Filter with Three Elements of Independent Orders

This paper studies a new fractional-order form for the active low-pass filter. The form was mainly generated from generalizing an active second-order low-pass filter with three capacitors to the fractional-order domain with three independent orders. The transfer function introduced an extra term in the denominator comprising the third fractional order. The effect of the third fractional-order

Circuit Theory and Applications

Impact of oustaloup and matsuda approximations on fractional pid controller of pv panel

Due to the non-linear relation between current and voltage of the PV modules, DC/DC power electronic converters are used to adapt this non-linearity. Controllers are used to control the DC/DC converters in order that, they can take actions against changes in irradiance input levels, temperature input levels and load values. In this study, a standalone PV system that feeds a DC load is simulated

Circuit Theory and Applications

A current-mode system to self-measure temperature on implantable optoelectronics

Background: One of the major concerns in implantable optoelectronics is the heat generated by emitters such as light emitting diodes (LEDs). Such devices typically produce more heat than light, whereas medical regulations state that the surface temperature change of medical implants must stay below + 2 °C. The LED's reverse current can be employed as a temperature-sensitive parameter to measure

Healthcare
Circuit Theory and Applications

On the Analysis and Design of Fractional-Order Chebyshev Complex Filter

This paper introduces the concept of fractional-order complex Chebyshev filter. A fractional variation of Chebyshev differential equations is introduced based on Caputo fractional operator. The proposed equation is solved using fractional Taylor power series method. The condition for fractional polynomial solutions is obtained and the first four polynomials scaled using an appropriate scaling

Circuit Theory and Applications

Fractional-order impedance transformation based on three port mutators

Due to the importance of the mutators for active circuit realizations, this paper investigates different three port mutator circuits that can be used to implement a floating impedance. The analytical equations that govern the proposed circuits as well as the necessary conditions under different configurations are introduced to realize positive and negative impedances. The proposed circuits are

Circuit Theory and Applications

Elmore delay in the fractional order domain

Interconnect design has recently become one of the important factors that affect the circuit delay and performance especially in the deep submicron technology. The modelling of interconnects is typically based on using Elmore definitions of the delay time and rise time. So, a general formula for Elmore delay time and rise time in the fractional order domain are presented in this work. It is found

Circuit Theory and Applications
Projects
2
Research Project

Cheap and Effective Device for Diagnosis on the Fly for Glucose Level in Human Body

Objective/ Contributions: A first prototype of a glucose device that can be connected to the 4G network. Computer-based software for monitoring the patient’s condition and alerting the system in case of emergency. The correlation between sensor impedance and its sensitivity and developing an auto-calibration based on that. Design and implementation of impedance spectroscopy for the sensor
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Research Project

Fractional order Image Processing Platform for Retinal Pigmontosa Patients

Objective/Contributions: Investigation and categorization of the different methodologies in fractional operator discretization. Investigate the effect of the number of memory samples on the performance of different discretization schemes and recommend the scheme which gives the best performance for the least number of memory samples. Discuss the stability analysis of the discretized operators and
Research Project

IoT-based Platform for Wearable Devices for Continuous Healthcare Monitoring

The ultimate goal of this project is to achieve diagnosis on the fly and predict abnormal health conditions and alert people before the condition happens. In order to achieve this, the following objectives should be fulfilled: Implementing wearable self-powered painless devices for healthcare monitoring. Implementing AI algorithm for predicting abnormal health conditions. Implementing painless
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Research Project

An Underwater AR based System for Marine Life Detection and Classification for Divers and Tourists

Objective/Contributions: Collecting and annotating an extensive dataset of fish images representing the fish species in the red sea. Building a machine learning model capable of detecting and classifying fish species from a real-time video. Building a proof-of-concept prototype for the AR hardware that is capable of capturing the live video of marine life, running the classification model, and
1
Research Project

Pre-emergency Alert IoT System-based on Wearable Devices for Diabetic Patient

According to World Health Organization (WHO), there are more than 400 million diabetic adults worldwide. In Egypt, only there are about 8 million diabetic people, and the diabetes prevalence rate is estimated to be 13.3% by 2025, according to WHO. In most cases, the diabetic person requires regular visits to the hospital for health checks. However, due to the COVID pandemic, it has become risky
1
Research Project

Low-Power Artificial Intelligence Framework for Internet of Things Applications

The Internet of Things (IoT) is penetrating many facets of our daily life with the proliferation of intelligent services and applications empowered by artificial intelligence (AI). Due to the massive scalability of modern IoT networks and increased data privacy, traditional AI algorithms require centralized data collecting and processing, which may not be practical in real-world application
Research Project

Multi-purposes Reading IoT-based Smart Platform

Objectives/Contributions: The project aims to introduce a solution for a multi-protocol environment. The proposed device that represents the ultimate goal of the project will act as an interpreter between different communication media, representing the project’s main deliverable. Furthermore, we propose to have a smart device to estimate the channel performance and decide the optimum communication