A5062617224- Advanced MEMS and NEMS Technologies
- Advanced optical system design
- Electrowetting and Microfluidic Technologies
- Photonic and Optical Devices
- Mechanical and Optical Resonators
- Optical Coatings and Gratings
- Magneto-Optical Properties and Applications
- Advanced Measurement and Metrology Techniques
- Advanced Optical Imaging Technologies
- Bluetooth and Wireless Communication Technologies
- Adhesion, Friction, and Surface Interactions
- Space Satellite Systems and Control
- Radio Frequency Integrated Circuit Design
- IoT-based Smart Home Systems
- Spacecraft Design and Technology
- Analog and Mixed-Signal Circuit Design
- Advancements in PLL and VCO Technologies
- Magnetic Field Sensors Techniques
- Smart Grid Energy Management
University of South-Eastern Norway
2017-2021
Cairo University
2021
Technical University of Malaysia Malacca
2019
Nankai University
2019
Intel (United States)
2014
King Abdulaziz City for Science and Technology
2013
Assiut University
2013
IMEC
2013
WWe report a modeling framework for evaluating the performance of piezoelectrically actuated MEMS tunable lenses. It models static opto-electromechanical coupling symmetric configurations piezoelectric actuators based on laminated-plate theory, linear piezoelectricity, and ray tracing. With these assumptions, it helps to find geometrical parameters clamped square or circular diaphragms that give diffraction-limited lens with minimum F-number. The lens' optical its focusing capability, alone...
A square geometry for the diaphragm of microelectromechanical systems (MEMS) tunable lenses with circular pupils is often used. This introduces aberrations that would not be present a and question arises whether it could advantageous to also consider other than geometries pupil. To investigate this question, we have extended previously established modeling framework piezoelectrically actuated MEMS devices general polygonal-shaped pupils. It models static optoelectromechanical coupling...
Piezoelectrically actuated microelectromechanical systems (MEMS) lens structures can be composed of a clamped square elastic diaphragm partially covered with thin piezoelectric film leaving circular transparent region to form pupil. To model these lenses' linear static optoelectromechanical performance, the displacement approximated by combination basis functions, e.g., weighted Gegenbauer polynomials that satisfy boundary conditions along edges. However, such needs as much 120 degrees...
The demand of improving home automation system to control the appliance in conveniently and efficiently leads be more concerned about what user daily activities way they want their appliances. Since BLE has ability advertise data without need connected a master (known as beacon). Measuring best response for experience ESP32 beacon scanner used light is studied by make advertisement happen at single multi-channel using an with different scanning paraments (ESP32-80 ESP32-20). result showed...
This paper presents a Serial Data Link Transceiver, which supports data rate transfer up to 10 Gbit/s designed with 65-nm CMOS technology. The Transmitter is modeled Verilog-A 3-taps Finite Impulse Response Filter (FIR) and Current Mode Logic (CML) drivers. Receiver DC-coupled driven by Power Management Units (PMU), Band Gab Reference (BGR) Low Drop Out regulator (LDO). equalization in the receiver achieved using Continuous Time Linear Equalizer (CTLE) channel loss compensation 7.5 dB,...
This paper reports a quantitative characterization of poly-SiGe MEMS-based Xylophone Bar Magnetometer (XBM), thereby following novel method that is based on the measurement forward/backward transmission gains S <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">21</sub> /S XBM treated as two-port network. More specifically, this was done through monitoring absolute amplitude resonant peaks and xmlns:xlink="http://www.w3.org/1999/xlink">12</sub>...
In this paper, we demonstrate a novel 2-axes MEMS-based resonant magnetic field sensor. It is compact magnetometer, build in single MEMS layer, which measures the two in-plane components of and with equal relative sensitivity. Its principle operation based on Lorentz force acting current carrying conductor placed B. The proportional to B for particular design it results torque exerted microstructure, resulting rotation (teeter-tooter) motion structure, its turns translated into differential...
This article presents a variational model for the geometrically nonlinear behaviour of piezoelectrically actuated MEMS tunable lenses. Residual stresses during fabrication and larger actuation voltages cause large deflections such that linear would provide less accurate approximation. presses need can explain softening hardening effects exhibited by lens its operation affect optical performance. Thus, in view von Kármán’s plate theory, presented predicts displacement after solving cubic...