Wideband dual-polarized PRGW antenna array with high isolation for millimeter-wave IoT applications

Research Abstract

This work presents a novel dual-polarized antenna array tailored for Internet of Things (IoT) applications, specifically designed to operate in the millimeter-wave (mm-wave) spectrum within the frequency range of 30–60 GHz. Leveraging printed ridge gap waveguide (PRGW) technology, the antenna ensures robust performance by eliminating parasitic radiation from the feed network, thus significantly enhancing the reliability and efficiency required by IoT communication systems, particularly for smart cities, autonomous vehicles, and high-speed sensor networks. The proposed antenna achieves superior radiation characteristics through a cross-shaped magneto-electric (ME) dipole backed by an artificial magnetic conductor (AMC) cavity and electromagnetic bandgap (EBG) structures. These features suppress surface waves, reduce edge diffraction, and minimize back-lobe emissions, enabling stable, high-quality IoT connectivity. The antenna demonstrates a wide impedance bandwidth of 24% centered at 30 GHz and exceptional isolation exceeding 40 dB, ensuring interference-free dual-polarized operation crucial for densely populated IoT environments. Fabrication and testing validate the design, consistently achieving a gain of approximately 13.88 dBi across the operational bandwidth. The antenna’s performance effectively addresses the critical requirements of emerging IoT systems, including ultra-high data throughput, reduced latency, and robust wireless connectivity, essential for real-time applications such as healthcare monitoring, vehicular communication, and smart infrastructure.

Research Authors
Zahra Mousavirazi, Mohamed Mamdouh M Ali, Abdel R Sebak, Tayeb A Denidni
Research Date
Research Department
Electrical Engineering Department
Research Journal
Sensors
Research Member
Mohamed Mamdouh Mahmoud Ali
Research Website
https://www.mdpi.com/1424-8220/25/11/3387
Research Year
2025

PWC Lorenz–Rabinovich system: complex dynamics, circuit realization, and a new technique for adaptive synchronization via sliding mode control with application to cryptosystems design

Research Authors
A. A.-H. Shoreh, Soliman A. A. Hamdallah, Motaz M. Elbadry & Gamal M. Mahmoud 804 Accesses 1 Citation Explore all metrics
Research Department
Electrical Engineering Department
Research Journal
International Journal of Dynamics and Control
Research Member
Motaz Mohamed Elbadry Mohamed
Research Website
https://link.springer.com/article/10.1007/s40435-025-01943-9
Research Year
2025

Thermal-Stress-Induced Degradation Monitoring and Deep-Neural-Network-Driven Lifetime Prediction of IGBT Modules in a Two-Level SVPWM Inverter

Research Abstract

One of the main causes of failure in Insulated Gate Bipolar Transistor (IGBT) modules used in high-power conversion applications is thermal-stress-induced degradation. In this paper, an experimental testing setup for thermal stress and real-time degradation monitoring, as well as a deep neural network (DNN)-based lifetime prediction of IGBT modules under thermo-electrically stressed inverter operation, is proposed. A two-level SVPWM inverter is implemented to create a hybrid power cycling test platform that imposes well-defined junction-temperature swings representative of real-world operation by combining controlled electrical loading and active induction heating with water cooling. Throughout the aging process, on-state voltage and module temperature are constantly monitored to identify degradation precursors associated with thermo-mechanical fatigue. A physics-based Coffin–Manson lifetime model is fitted using failure datasets to characterize temperature-dependent lifetime behavior. An offline deep neural network (DNN) is trained on degradation trajectories derived from on-state collector–emitter voltage (Vce,on) to predict remaining useful lifetime. This approach uses partial degradation histories for accurate early-life prediction. The proposed DNN model for competitive and computationally efficient lifetime prediction is validated experimentally on several IGBT modules under different thermal stresses, and its accuracy is compared with other prediction methods.

Research Authors
Ahmed H Okilly, Wujong Lee, Ilyong Lee, Deockho Kim, Jeihoon Baek
Research Date
Research Department
Electrical Engineering Department
Research Image
Research Journal
Electronics
Research Member
Ahmed Hassan Hamed okilly
Research Pages
15081678
Research Publisher
MDPI
Research Rank
International journal (IF=2.9), WOS(Q2), Scopus (Q1)
Research Vol
15
Research Website
https://www.mdpi.com/2079-9292/15/8/1678
Research Year
2026

The College Council approves the new strategic plan for the College for the years 2026-2030.

 The Faculty of Engineering Council at Assiut University, in its 1153rd session held on January 13, 2026, approved the new five-year strategic plan for the Faculty for the years 2026-2030. The Faculty's Strategic Planning Office was tasked with monitoring the implementation of the plan's various activities, preparing periodic reports on progress, and presenting them to the Faculty Council on a regular basis.

The adoption of the college's new strategic plan came after a significant effort spanning more than a year. The college administration and the plan preparation committee ensured the participation of all stakeholders involved in the college's academic, research, and service activities. This included faculty members, teaching assistants, students, administrative staff, alumni, representatives from businesses, and representatives from engineering, industrial, and professional organizations. This participation was evident at every stage of the plan's development, through regular surveys of various components. These surveys covered everything from updating the college's mission and vision, to revising guiding policies, analyzing the current situation and identifying gaps, and finally, defining strategic goals, objectives, and activities. Several workshops were also held for the plan preparation committee, as well as broader workshops with the participation of various stakeholders, to present and discuss the results of each stage of the plan's development.

The Dean of the College expressed his gratitude to the university administration, headed by Professor Dr. Ahmed El-Menshawy, the University President, and the Vice Presidents, for their ongoing support of the college and its various activities and events. He emphasized that the college's plan aligns with the university's strategic plan and fulfills the university's mission, vision, goals, and strategic objectives.

Professor Dr. Khaled Salah, Dean of the College, congratulated the Vice Deans, Department Heads, College Administration, all its staff, the planning committee, and all those involved in preparing the plan on the approval of the strategic plan and the commencement of its implementation.

The Dean of the College had reconstituted the committee tasked with preparing the new strategic plan for the college, to finalize the plan's implementation. The committee included representatives from various beneficiary groups and stakeholders within the college, namely:

1. Prof. Dr. Khaled Salah Saeed, Dean of the College, Chairman

2. Prof. Dr. Mohamed Safwat Mohamed Mohamed, Vice Dean for Education and Student Affairs, Member

3. Prof. Dr. Shehata El-Dabaa Abdel-Rahim, Vice Dean for Graduate Studies, Member

4. Prof. Dr. Mohamed Safwat Mohamed Mohamed, Acting Vice Dean for Community Service and Environmental Development, Member

5. Prof. Dr. Mahmoud Ahmed Abdullah El-Sherif, Head of the Department of Mechanical Design and Production Engineering (representing the Heads of Departments), Member

6. Prof. Dr. Mahmoud Aneib Othman Aneib, Director of the Quality Assurance Unit, Member

7. Prof. Dr. Mahmoud Mohamed Ahmed Awais, Director of the College's Strategic Planning Office, Coordinator

8. Prof. Dr. Abdel-Mottaleb Mohamed Ali Ahmed, Director of the Center for Engineering Studies and Consultations, Member

9. Prof. Dr. Mahmoud Mohamed Ahmed Awais, Director of the Student Training Unit, Member

10. Prof. Dr. Salwa Abdel Rahman Mogahed, Faculty Member

11. Dr. Ahmed Yahya Abdel Azim, Assistant Professor

12. Dr. Shaimaa Adly Abdel Rahman Sayed, Lecturer

13. Eng. Abdel Rahman Hassan Ahmed, Assistant Lecturer

14. Mr. Raafat Bakr Mohamed, College Secretary

15. Eng. Khaled Bakr Moussa, Director of the Urban Planning Authority Office in Assiut

16. Mr. Wael Hanna Sadek, Administrator at the Center for Engineering Studies and Consultations, Committee Secretary

17. Dana Adel Mosaad, Third Year Student, Mining and Metallurgical Engineering Department

 
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The College of Engineering is organizing a workshop to discuss strategic goals, objectives, and activities within the fifth phase of preparing the college's new strategic plan.

 Under the patronage of Professor Dr. Ahmed El-Menshawy, President of the University, and the supervision of Professor Dr. Khaled Salah, Dean of the Faculty, the Faculty of Engineering at Assiut University organized a workshop on Sunday, January 11, 2026, to discuss the strategic goals, objectives, and activities that can be achieved.

Professor Dr. Khaled Salah, Dean of the Faculty, spoke about the various steps taken in preparing the plan, culminating in the identification of the strategic goals, objectives, and activities. He noted the participation of various stakeholders within the Faculty in this process, which is a prelude to presenting the plan to the Faculty Council for approval and implementation.

The Dean explained that the plan and its study were based on several important guidelines, including the Faculty's general values, Egypt's Vision 2030, the National Anti-Corruption Strategy, the Higher Education and Scientific Research Strategy in Egypt, the Faculty's guiding policies, the national accreditation standards issued by the National Authority for Quality Assurance and Accreditation of Education, the University's strategic plan, and the principles of sustainable development and continuous improvement.

Professor Mahmoud Awais, Director of the College's Strategic Planning Office, presented the results of studies identifying strategic goals, objectives, and activities. A general discussion of the activities included in the plan followed, and an online survey was conducted among workshop attendees regarding the study results.

The workshop was led by Professor Dr. Khaled Salah, Dean of the College, and attended by Professor Dr. Mohamed Safwat Abu Raya, Vice Dean for Education and Student Affairs and Supervisor of the College's Agency for Community Service and Environmental Development; Professor Dr. Shehata El-Dabaa Abdel-Rahim, Vice Dean for Studies, Consultations, and Research; Professor Dr. Ibrahim Mohamed Ismail, Director of the University's Quality Assurance Center; Professor Dr. Mahmoud Anib Othman, Director of the College's Quality Assurance Unit; Professor Dr. Mahmoud Awais, Director of the College's Strategic Planning Office; and all members of the plan preparation committee. Also present were the heads of departments: Professor Dr. Mohamed Abdel-Basset Abdo, Head of the Civil Engineering Department; Professor Dr. Mahmoud El-Sherif, Head of the Mechanical Design and Production Engineering Department; and Professor Dr. Mohamed Abbas Abdel-Radi, Head of the Electrical Engineering Department. Professor Dr. Mohamed Safwat Abu Raya, Supervisor of the Mining and Metallurgy Department and the Mechanical Power Engineering Department, also attended. Several members of the College Council, faculty members, teaching assistants, and Mr. Raafat Bakr, the College's Secretary General, were also in attendance.

The workshop was attended by representatives from several engineering institutions, including Engineer Khaled Bakr Moussa, Head of the Regional Office of the Urban Planning Authority in Assiut and a member of the college's strategic plan preparation committee; Engineer Nevin Salah Deif, Deputy Head of Engineering Experts at the Ministry of Justice in Assiut and a member of the college's Quality Assurance Unit Board; as well as faculty members, teaching assistants, postgraduate and undergraduate students, college administrative staff, and alumni. The head of the college's student union also participated.

 
 
 
 
 
 
 
 
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