In February 2010, I joined the Electronics Research Institute in Egypt as a research assistant and was promoted to researcher in April 2015. During this time, I conducted development research on antennas using metamaterials, developing UWB and millimeter-wave antennas for next-generation wireless communication systems. In October 2015, I moved to Japan and joined Kyushu University as a researcher and then as an assistant professor. Currently, I work as a project manager at eSync SSB, Inc., where I lead projects related to battery-less IoT devices and RF front-ends for LEO satellite user terminals. My research interests include the following two main themes:

1. RF/mm-Wave/terahertz Integrated Circuits:

This research involved the design and development of radio-frequency and millimeter-wave integrated circuits, including both passive and active components as well as on-chip antennas. Metamaterial concepts, particularly artificial magnetic conductors, were employed to realize efficient millimeter-wave antennas with improved radiation performance. Compact, low-loss passive structures such as filters and Wilkinson power dividers were also developed, achieving reduced footprint and insertion loss at frequencies around 60 GHz and above. For active circuits, efficient millimeter-wave power amplifiers and low-power voltage-controlled oscillators were designed using techniques including defected ground structures to enhance performance at high frequencies.

2. Wireless Power Transfer and Communication Systems for Biomedical Applications

This research focused on the development of a short-range wireless power transfer and communication system targeting implantable biomedical devices, with particular emphasis on cardiac pacemakers. A metamaterial-assisted wireless power transfer architecture was investigated to enable efficient wireless charging of implanted pacemakers while strictly complying with human-body safety constraints. The system was designed to deliver electromagnetic power in a controlled manner that limits tissue exposure and satisfies regulatory safety requirements, while simultaneously supporting low-power data communication. Recent research activities also included the implementation of CMOS-based digital circuits, such as modulators and demodulators, to support integrated power and communication functionality.

3. AI-assisted Microwave Design

Microwave circuit design, whether for active or passive components, is inherently dominated by impedance matching requirements. Achieving the desired performance over a target frequency band typically demands extensive iterative optimization, consuming most of the design cycle in circuit and electromagnetic simulators. This matching process remains the primary bottleneck, as it relies heavily on expert intuition and manual parameter tuning across high-dimensional design spaces. Microwave-assisted, AI-based design shifts this bottleneck from human-driven trial-and-error to data-driven optimization, enabling faster convergence and a fundamental reduction in design time.