Article

Rapid Re-Design and Bandwidth/Size Trade-Offs for Compact Wideband Circular Polarization Antennas Using Inverse Surrogates and Fast EM-Based Parameter Tuning

Published in: IEEE Transactions on Antennas and Propagation

Aug 22, 2019

/ Ubaid Ullah Slawomir Koziel / Ismail Ben Mabrouk

Design of compact wideband circularly polarized (CP) antennas is challenging due to the necessity of simultaneous handling of several characteristics (reflection, axial ratio, gain) while maintaining a small size of the structure. Antenna re-design for various operating bands is clearly more difficult yet practically important because intentional reduction of the bandwidth (e.g., by moving the lower edge of the operating band up in frequency) may lead to a considerable size reduction, which can...


Elmaghrabi, M. E. (2019), “Corporate Social Reporting in Egypt: Nature and Determinants” , Financial and business research journal, [Portsaid University], Vol. 5, issue 2.

On the Path Loss Model for 5-GHz Microwave-Based Pinless Subsea Connectors

Published in: Progress In Electromagnetics Research

Jun 01, 2019

Jose Carlos Reyes Guerrero Ismail Ben Mabrouk Muath Alhassan Mourad Nedil

In this work, a simple propagation channel model for microwave-based pinless subsea connectors in the 5 GHz band is presented. Both high electromagnetic attenuation in seawater due to absorption and the near-field working conditions typically present for underwater connectors are taken into consideration. Therefore, a simplified path loss model based on linear regression is identified. The study shows that high-speed pinless subsea connectors are a reality over several cm of seawater gap when a...


Elmaghrabi, M. E. (2019), “Corporate Social Reporting in Egypt: Nature and Determinants” , Financial and business research journal, [Portsaid University], Vol. 5, issue 2.

Design and Simulation of a Nanoscale Threshold-Logic Multiplier

Published in: TEM Journal

May 31, 2019

/ Mawahib Sulieman M. Mahmoud R. Raafat G. Reda

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