A
Abdullah Al Hafiz
Researcher at King Abdullah University of Science and Technology
Publications - 23
Citations - 424
Abdullah Al Hafiz is an academic researcher from King Abdullah University of Science and Technology. The author has contributed to research in topics: Resonator & Logic gate. The author has an hindex of 11, co-authored 22 publications receiving 342 citations. Previous affiliations of Abdullah Al Hafiz include University of Queensland.
Papers
More filters
Journal ArticleDOI
Mode Coupling and Nonlinear Resonances of MEMS Arch Resonators for Bandpass Filters.
TL;DR: It is demonstrated that by driving both modes nonlinearly and electrostatically near the veering regime, such that the first and third modes exhibit softening and hardening behavior, respectively, sharp roll off from the passband to the stopband is achievable.
Journal ArticleDOI
Highly Tunable Electrothermally and Electrostatically Actuated Resonators
TL;DR: In this paper, the authors demonstrate experimentally, theoretically, and numerically for the first time, a wide-range tunability of an in-plane clamped-clamped microbeam, bridge, and resonator actuated electrothermally and electrostatically.
Journal ArticleDOI
Tunable nanoelectromechanical resonator for logic computations.
S.N.R. Kazmi,Abdullah Al Hafiz,Karumbaiah N. Chappanda,Saad Ilyas,Jorge Holguin,Pedro M. F. J. Da Costa,Mohammad I. Younis +6 more
TL;DR: A nanomechanical device capable of dynamically performing logic operations (NOR, NOT, XNOR, XOR, and AND) based on the active tuning of the resonance frequency of a doubly-clamped nanoelectromechanical beam resonator through electro-thermal actuation is presented.
Journal ArticleDOI
In-Plane MEMS Shallow Arch Beam for Mechanical Memory
Abdullah Al Hafiz,Lakshmoji Kosuru,Abdallah Ramini,Karumbaiah N. Chappanda,Mohammad I. Younis +4 more
TL;DR: A memory device based on the nonlinear dynamics of an in-plane microelectromechanical systems (MEMS) clamped–clamped beam resonator, which is deliberately fabricated as a shallow arch, thereby proving the memory concept.
Journal ArticleDOI
Experimental investigation of snap-through motion of in-plane MEMS shallow arches under electrostatic excitation
Abdallah Ramini,Mohammed Lamine Faycal Bellaredj,Abdullah Al Hafiz,Mohammad I. Younis,Mohammad I. Younis +4 more
TL;DR: In this paper, the authors present an experimental investigation for the nonlinear dynamic behaviors of clamped-clamped in-plane MEMS shallow arches when excited by harmonic electrostatic forces.