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Dissertations/Theses - Department of Electrical and Electronic Engineering: Recent submissions

Now showing items 381-400 of 775

Design and implementation of an improved AC voltage regulator

Raju Ahmed, Md. (Department of Electrical and Electronic Engineering, BUET, 2006-06)

High frequency switching power supplies have become part of electronic equipments to provide regulated DC of desired voltage at a low cost and high efficiency. These power supplies have several advantages over their ...
New model for capacitance-voltage analysis of metal semiconductor contacts

Mahbub Satter, Md. (Department of Electrical and Electronic Engineering, BUET, 2007-09)

A new numerical model for capacitance-voltage analysis of metal-semiconductor contacts has been developed and used to simulate on various experimental results. The model is based on self-consistency between Poisson's ...
Modeling of charge quantization and wave function penetration effects in ultra thin body double gate MOSFETS

Kawsar Alam, Md. (Department of Electrical and Electronic Engineering, BUET, 2007-10-02)

Modeling of charge quantization and effects of wave function penetration into gate oxide on the properties of ultra thin body double gate (OG) MOSFET in deep submicron regime are studied. Self-eonsistent modeling of ...
Voice quality and capacity enhancement in GSM system using the features of adaptive multirate and M-ary PSK modulation

Shamim Akbar, Md. (Department of Electrical and Electronic Engineering, BUET, 2006-04-30)

GSM (Global System for Mobile communication) is a popular mobile communication system especially for its roaming facility and handset changing flexibility. Due to increasing demand it is now essential to increase the ...
Analysis and compensation of PMD effects in high speed fiber-optic transmission systems using different modulation and detection scehemes

Saiful Islam, Md. (Department of Electrical and Electronic Engineering, BUET, 2008-05-27)

Polarization Mode Dispersion (PMD) is a serious barrier that limits high-speed optical fiber telecommunication systenls. PMD is the result of random birefringence in single-mode fibers along the transmission path. This ...
Internally compensated linear low drop out regulator design in a low cost pseudo BiCMOS process

Mustafa Khelat Bari, Syed (Department of Electrical and Electronic Engineering (EEE), 2008-06)

A high performance internally compensated Low Drop Out (LDO) regulator has been presented in this thesis which is stable with any value and type of output capacitor. Normally any type of regulator consisting negative ...
Study of insulationg properties of raw and impregnated jute fibres for electrical equipments

Masroor Anwer, Md. (Department of Electrical and Electronic Engineering, BUET, 2004-10-31)

For abstracts please see full text
Performance analysis of a free-space optical communication system through atmospheric turbulence channels

Nazmul Alam, Md. (Department of Electrical and Electronic Engineering, BUET, 2008-12-27)

Free space optical (FSO) communication technology is a promising candidate for next generation broadband networking, due to its large bandwidth potential, unlicensed spectrum, excellent security and quick and inexpensive ...
Performance analysis of direct sequence CDMA power line communication systems over the frequency selective channel

Mahmud Hasan, Md. (Department of Electrical and Electronic Engineering, BUET, 2005-11-20)

For abstracts please see full text
Performance analysis of subcarrier multiplexed WDM transmission system in presence of fiber nonlinear effects

Saifuddin Faruk, Md. (Department of Electrical and Electronic Engineering, BUET, 2006-08-13)

A theoretical analysis for crosstalk level in a subcarrier multiplexed WDM (SCMWDM) transmission system is presented. Crosstalk due to fiber nonlinear effect is considered as Stimulated Raman Scattering (SRS), Cross Phase ...
Study of capacitance-voltage characteristics of pulsed laser deposited n-carbon/p-SI heterostructure

Zahurul Islam, Md. (Department of Electrical and Electronic Engineering, BUET, 2005-04-26)

For abstracts please see full text
Analysis of a free space optical (FSO) link under the influence of spatial widening effect from propagation through clouds

Das, Pranjan (Department of Electrical and Electronic Engineering (EEE), 2011-05)

Free Space Optical communication is a line of sight technology that transmits light between two points through atmosphere as the channel of propagation. Clouds as a part of the communication channel cause signal power ...
Performance analysis of an LDPC coded free-space optical communication system through atmospheric turbulence channel

Barua, Bobby (Department of Electrical and Electronic Engineering (EEE), 2010-10)

Free-space optical (FSO) communication technology is a promising candidate for next generation broadband networking, due to its large bandwidth potential, unlicensed spectrum, excellent security, and quick and inexpensive ...
Simulation of the properties of multi element Yagi Uda antenna array using wavelets and numerical electronic computation

Sharma, Sajal Kumar (Department of Electrical and Electronic Engineering (EEE), 2010-08)

In this project paper, Yagi-Uda antenna is analyzed and simulated by using the Wavelets and Numerical Electronic Computation (NEC). The analysis of a Yagi-Uda antenna has been based on considering a current distribution ...
Optical analysis of a semiconductor electrooptic modulator with microstrip electrode

Mahbub Amin (Department of Electrical and Electronic Engineering (EEE), 2010-06)

This work presents the optical analysis of a semiconductor electrooptic modulator with microstrip electrode on a GaAs substrate. Prior to optical analysis, microwave analysis by using the finite element method is carried ...
Numerical analysis of GVD and TOD compensation at 160 Gb/s long-haul transmission using fiber bragg grating

Shariful Islam, Md. (Department of Electrical and Electronic Engineering (EEE), 2014-04)

Group velocity dispersion (GVD) and third-order dispersion (TOD) have severe deleterious impact on the system performance at ultrahigh speed optical communication. GVD results in broadening of the propagating pulse causing ...
Clock Independent UWB transmitter and front-end receiver for medical imaging

Nahidul Karim, Mohammad (Department of Electrical and Electronic Engineering (EEE), 2014-05)

Due to inherent noise like characteristics, Ultra wideband (UWB) radio signals are highly suitable for less invasive medical applications. So, apart from the short distance high-speed communication, nowadays Ultra wideband ...
Design and optimization of an InGaP/GaAs/SixGe1-x solar cell considering recombination effects

Sayema Chowdhury (Department of Electrical and Electronic Engineering (EEE), 2015-08)

Multi-junction III–V solar cells for terrestrial and space applications have attracted increasing attention in recent years for their very high conversion efficiencies. However, increasing the efficiency while maintaining ...
Low noise amplifier in the RF front end employing wide band impedance matching tecnique for applications operating above 10 GHZ

Saiful Arefin Mojumder, Md. (Department of Electrical and Electronic Engineering (EEE), 2015-08)

Design and simulation of a wideband LNA in the RF front end employing wide band impedance matching technique for applications operating above 10 GHz is presented. The LNA is designed to operate at a center frequency of 24 ...
Evaluation of burst loss rate of an optical burst switching network with wavelength conversion capability

Shamim Reza, Md. (Department of Electrical and Electronic Engineering, BUET, 2008-09-17)

An analytical expression for the burst loss rate is proposed on the basis of a one-way protocol in a slotted optical burst-switching network with wavelength conversion capability. In this protocol; a wavelength is reserved" ...

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