A5024729338- Advancements in PLL and VCO Technologies
- Analog and Mixed-Signal Circuit Design
- Radio Frequency Integrated Circuit Design
- Error Correcting Code Techniques
- Cooperative Communication and Network Coding
- Gyrotron and Vacuum Electronics Research
- Advanced Wireless Communication Techniques
- Digital Filter Design and Implementation
- Ultra-Wideband Communications Technology
- Evolutionary Algorithms and Applications
- Advanced Wireless Network Optimization
- Semiconductor Lasers and Optical Devices
- Metaheuristic Optimization Algorithms Research
- Ferroelectric and Negative Capacitance Devices
- Advanced Sensor and Energy Harvesting Materials
- graph theory and CDMA systems
- Advancements in Semiconductor Devices and Circuit Design
- Physical Unclonable Functions (PUFs) and Hardware Security
- Coding theory and cryptography
- Antenna Design and Analysis
- Advanced MIMO Systems Optimization
- Neuroscience and Neural Engineering
- Nanomaterials and Printing Technologies
- Spectroscopy and Chemometric Analyses
- Semiconductor Quantum Structures and Devices
Arab Academy for Science, Technology, and Maritime Transport
2006-2023
Smart agriculture has taken more attention during the last decade due to bio-hazards of climate change impacts, extreme weather events, population explosion, food security demands and natural resources shortage. The Egyptian government initiative in dealing with plants diseases especially tomato which is one most important vegetable crops worldwide that are affected by many causing high yield loss. Deep learning techniques have become main focus direction identifying leaf diseases. This...
This paper introduces a cost-effective method for the fabrication of stretchable circuits on polydimethylsiloxane (PDMS) using inkjet printing silver nanoparticle ink. The method, presented here, allows development fully and wearable sensors. Inkjet-printed sinusoidal horseshoe patterns are experimentally characterized in terms effect their geometry stretchability, while maintaining adequate electrical conductivity. optimal fabricated circuit, with pattern at an angle 45°, is capable...
The main purpose of this paper is to achieve as low possible leakage current (I <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">OFF</sub> ) meet the requirements for ultra-low power (ULP) applications. proposed methodology based on studying effect most effective FinFET design parameters that directly impact its current. explored in are channel lengths L xmlns:xlink="http://www.w3.org/1999/xlink">eff</sub> , gate stacks, contact materials, and...
Cuckoo search algorithm (CSA) has been a candidate for numerous recent applications and showed great compatibility in solving optimization problems. It is metaheuristic which based on the odd breeding strategy of bird spices. used to find an optimum or near solution certain problem. In this research, we propose FPGA hardware implementation CSA single precision IEEE floating point (FP). The FP format provides wider range higher when compared fixed format. To best our knowledge, first study...
The Internet of Things (IoT) has opened up a world opportunities for improving our daily lives. One offshoot the IoT is Vehicles (IoV), which aims to enhance traffic safety and provide low route information. However, security information exchanged between moving vehicles wireless mediums crucial. Physical Unclonable Function (PUF) an effective technology that creates hardware fingerprint based on unique characteristics device. Ring Oscillator (RO) PUF most commonly used PUF. This study...
This paper presents an analysis for a single stage Low Noise Amplifier (LNA) X-band radar application. The LNA is designed using commercially Pseudomorphic High Electron Mobility Transistor (P-HEMT). to achieve low noise figure, high gain and better matching 50 Ω at both input output terminals. Cascaded cascoded circuit topologies were implied the targeted requirements. In addition, negative feedback technique utilized increase operating bandwidth. simulated Advanced Design System (ADS)...
Free Space Optical (FSO) communication systems have extensively invaded the speed of smart city evolution due to current surge in demand for wireless spots that can match recent challenges high technical leaps evolution. As number users is vastly increasing throughout all networks form machines, devices, and variously distinct objects, FSO a hugely recommended robust system mitigates lot RF disadvantages on field with no need licensing, fast rollout time, low cost. This paper shows an...
This paper presents three configurations of Ultra Wideband (UWB) Pulse Generators (PGs).The target low power applications operating in the frequency range 3.1-10.6GHz.The designs use logic gates and buffered filters to generate a Gaussian 5th derivative pulse.The used technology is 0.13 µm from TSMC.The lowest consumption highest BW achieved are mW 7.1 GHz respectively.In terms Power Spectral Density (PSD), comply with -41.3 dBm FCC requirements.
This paper presents a Step Recovery Diode (SRD) based Pulse Generator (PG) suitable for Ultra Wideband (UWB) applications. Sensitivity analysis on the PG is performed to optimize SRD key parameters. The design generates 200 ps duration pulse with Power Spectral Density (PSD) of -30.5 dBm. generated suites wireless network applications such as sensors networks (WSN). utilizes off-the-shelf components, which factor in cost reduction generator.
In this paper, a novel design of an 11 bit high speed digital-to-analog converter (DAC) is introduced. The integrated in direct digital frequency synthesizer (DDFS). proposed consists three modules, linear DAC, non-inear DAC and interpolation DAC. based on the non-inearity I/V characteristic current cells used. layout carried out for 3.3 V, 0.35 µm CMOS technology. Pre post simulations are performed using Mentor Graphic Tools. simulated at 1 GHz clock frequency. output equals to 1/1024 fclk...
In this paper, we aim to investigate the delay-power tradeoff problem which is attracting widespread interest due its importance in wireless technology. This research has two main objectives. First, assess effect of different system parameters on performance metrics. Second, provide a solution for optimization problem. A two-state, slow-fading channel categorized into good and bad states. An adaptive transmission random data arrivals are considered our model. Each category own Markov chain,...
In this paper a novel design of an 11 bit digital-to-analog converter (DAC) is introduced. The to be integrated in direct digital frequency synthesizer (DDKS). designing DAC critical due its poor performance and low speed. proposed consists three modules, linear DAC, nonlinear interpolation DAC. Each module contributes enhancing the performance. simulated using Mentor Graphic tools. simulation was done 3.3V, 0.35mu CMOS technology
Min sum algorithm (MSA) is widely used for decoding Low Density Parity Check (LDPC) codes in many modern Digital Video Broadcasting (DVB) as a simplification Sum Product Algorithm (SPA) which greatly reduce the implementation complexity. This paper presents design of modified variable scaling min LDPC DVB-S2/S2X/T2. The proposed combination between Normalized (NMSA) and Offset (OMSA) provides trade-off complexity error correcting performance. It improves use by 39%. A proposal how to...
This paper presents a novel design for 10 bit DAC.The is to be integrated in direct digital frequency synthesizer (DDFS).The consists of three main modules, nonlinear course DAC, linear fine and interpolation DAC.Each these modules contributes enhancing the DAC performance.The then integrated, simulated using Mentor Graphics Tools.The simulation was done 3.3V, 0.35u CMOS technology.The has an advantage over published DACs its simplicity repeatability.The operates at higher output with...