M.Sc. Ahmed Abdelaal

Ahmed Abdelaal received the B.​Sc degree in Electronics Engineering from the German University in Cairo (GUC), Egypt, 2016. Afterwards, he received the M.Sc degree in 2018 from Ulm University, Germany, where he is currently working towards his PhD under the supervision of Professor Dr.-Ing. Maurits Ortmanns. His research interest is high-speed continuous-time sigma-delta modulators.

Studentische Arbeiten

[mt] = Masterarbeit, [rp] = Bachelorarbeit

Aktuelle Arbeiten

  • Michael Pietzko
    Highly Linear Gm C based Sigma Delta Modulator [mt]

Projects

Ultra-low Power, Wide Bandwidth Continuous-time Sigma Delta Analog to Digital Converter Design

A. Abdelaal, M. Pietzko: Continues time delta sigma modulators (CTDS) have recently become the key device for broadband wireless and wireline communication.  Due to there built in anti-aliasing filter and the ability to have relaxed sampling requirements the CTDS modulators are preferred over there discrete time counterparts ... [more]

Publications

2020

3.
Abdelaal, A.; Kauffman, J. G.; Mokhtar, M.; Ortmanns, M.
A Comparative Study of ISI Errors in Different DAC Structures for CT Delta-Sigma Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Sevilla, Spain
October 2020
2.
Mokhtar, M.; Vogelmann, P.; Abdelaal, A.; Kauffman, J. G.; Ortmanns, M.
FIR DACs in CT Incremental Delta-Sigma Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Sevilla, Spain
October 2020

2019

1.
Jain, A.; Abdelaal, A.; Ortmanns, M.
Effective Filtering of Requantization Error in Dual Quantized CTDSM using FIR DAC
IEEE International Symposium on Circuits and Systems (ISCAS), Sapporo, Japan, pp. 1-5.
May 2019

Research assistant

Ahmed Abdelaal