Ahmed.Montaser

Ahmed Montaser

استاذ مساعد -

كلية التعليم الصناعى

العنوان: أخميم - سوهاج

1

إعجاب
| الكلمات المفتاحية Bluetooth, Antenna,
Design Bluetooth And Notched-UWB E-Shape Antenna Using Optimization Techniques
Abstract|In this article, an optimized E-shaped patch antenna for Bluetooth (2.4{2.484 GHz) and UWB (3.1{10.6 GHz) applications with WLAN (5.15{5.825 GHz) band-notched characteristics is proposed. The dimensions of the E-shaped antenna structure in addition to the position of the slotted C-shape in the ground plane are optimized using recent optimization techniques such as Modi¯ed Particle Swarm Optimization (MPSO), Bacterial Swarm ... إقراء المزيد

| الكلمات المفتاحية CIRCULAR, HEXAGONAL OCTAGO, CIRCULAR, HEXAGONAL, OCTAGONAL,
CIRCULAR, HEXAGONAL AND OCTAGONAL ARRAY GEOMETRIES FOR SMART ANTENNA SYSTEMS USING HYBRID CFO-HC ALGORITHM
In this paper, circular, hexagonal and Octagonal array geometries for smart antenna applications are compared. Uniform circular (UCA), uniform hexagonal (UHA) and uniform Octagonal arrays (UOA) with 24 half-wave dipole elements are examined. An efficient global hybrid optimization method is proposed combining the Central Force Optimization (CFO) as a global optimizer and Hillclimbing (HC) algorithm as a local optimizer. After ... إقراء المزيد

| الكلمات المفتاحية Antenna, BSO-NM Algorithm, Mobile,
Design of Hexa-Band Planar Inverted-F Antenna Using Hybrid BSO-NM Algorithm for Mobile Phone Communications
This article presents a new design of multiband planar inverted-F antenna with slotted ground plane and S-etched slot on the radiation patch. The proposed antenna is optimized using an efficient global hybrid optimization method combining bacterial swarm optimization and Nelder-Mead (BSO-NM) algorithm to cover a very important six service bands including GSM900, GPS1575, DCS1800, PCS1900, ISM2450, and 4G5000 MHz with ... إقراء المزيد

| الكلمات المفتاحية PIFA, Antenna,
An Interaction Study Between PIFAs Handset Antenna and a Human Hand-Head in Personal Communications
Abstract|In this paper, the interaction of a planar inverted-F antennas array, mounted on a mobile handset, with a human hand-head phantom is investigated in the 1.9 GHz band. The hybrid approach involving the particle swarm optimization (PSO) and Nelder-Mead (NM) algorithm is considered to optimize the complex excitations of the adaptive array elements in a mutual coupling environment for di®erent ... إقراء المزيد

| الكلمات المفتاحية Notched-UWB, Laptop, Antenna,
Integration of An Optimized E-Shaped Patch Antenna into Laptop Structure for Bluetooth and Notched-UWB Standards using Optimization Techniques
Abstract|In this article, an optimized E-shaped patch antenna for Bluetooth (2.4{2.484 GHz) and UWB (3.1{10.6 GHz) applications with WLAN (5.15{5.825 GHz) band-notched characteristics is proposed. The dimensions of the E-shaped antenna structure in addition to the position of the slotted C-shape in the ground plane are optimized using recent optimization techniques such as Modi¯ed Particle Swarm Optimization (MPSO), Bacterial Swarm ... إقراء المزيد

| الكلمات المفتاحية Capacitors, Bandpass,
Design Of Multimode Bandpass Filter With Microstrip Resonator Loaded Capacitors Using Optimization Techniques
This paper introduces a new way to reduce the length of a microstrip end-coupled resonator by loading its ends by a lumped capacitors. A new way of controlling the frequency of the 2nd harmonic even mode by loading the center of the resonator by a lumped capacitor directly or through less than 0.125 λgo part of a microstrip transmission line. ... إقراء المزيد

| الكلمات المفتاحية Handsets,
Planar Inverted-F Antenna Array Performance For Smart Handsets Including The Interaction With a Human Hand-Head
In this paper the interaction of the planar inverted-F antenna array, mounted on a mobile handset, with a human hand-head phantom is investigatedin the 1.9 GHz band. The hybrid approach involving the particle swarm optimization (PSO) and Nelder-Mead (NM) algorithm is considered to optimize the complex excitations of the adaptive array elements in a mutual coupling environment for different beamforming ... إقراء المزيد

| الكلمات المفتاحية RFID, CFO-NM,
Tri-band Slotted Bow-Tie Antenna Design for RFID Reader using Hybrid CFO-NM Algorithm.
In this article, a dual bow-tie slot antenna for 915/2450/5800 MHz triple band RFID applications is presented. The size of the proposed antenna is determined by the middle resonant frequency. The lower and upper operating frequencies are obtained by inserting metal strip pairs near the ends of the slotted dual bow-tie without increasing the overall antenna area. The hybrid approach ... إقراء المزيد

| الكلمات المفتاحية RFID, Bow-Tie,
Slotted Bow-Tie Antenna Design for RFID Readers using Hybrid Optimization Techniques
Recently hybrid optimizations algorithm has attracted a lot of attention as a high-performance optimizer. This paper presents a comparison between different hybrid optimization algorithms. The proposed algorithms are used to design a slotted bow-tie antenna for 2.45 GHz Radio Frequency Identification (RFID) readers. The antenna is optimized using different algorithms integrated with the CST Microwave studio. Four algorithms are compared: ... إقراء المزيد

| الكلمات المفتاحية Communication, Antenna,
Compact Ultra-Wideband Monopole Antenna Design for Wireless Communication using Differential Evolution Optimization Algorithm
An internal Ultra-Wideband (UWB) monopole antenna for use in portable wireless communication applications is presented with a compact dimensions. It consists of a radiating patch, a matching stub, and a ground plane. The effect of defected ground plane structure (DGS) is studied in addition to the effect of defected slots in the radiating patch and matching stub on the return ... إقراء المزيد