Volume 18 (2024)
Volume 17 (2023)
Volume 16 (2022)
Volume 15 (2021)
Volume 14 (2020)
Volume 13 (2019)
Volume 12 (2018)
Volume 11 (2017)
Volume 10 (2016)
Volume 9 (2015)
Volume 8 (2014)
Volume 7 (2013)
Volume 6 (2012)
Volume 5 (2011)
Volume 4 (2010)
Volume 3 (2009)
Volume 2 (2008)
Volume 1 (2007)
Number of Articles: 8
The Parasitic-Aware Design and Optimization of CMOS Distributed Amplifier Using Multi Objective Genetic Algorithm
Volume 2, Issue 2 , September 2008, Pages 1-8
Abstract
In this paper a fully integrated CMOS Distributed Amplifier is presented. This DA can be used for broadband optical and wireless communication applications. A four stage cascode DA is designed and optimized. A critical problem in CMOS RFIC design is the parasitic elements of transistors and inductors ... Read MoreAnalysis and Optimization of Splice-Joint Attenuation of Single-Mode Fibers and Photonic Crystal Fibers Based Devices in Optical Communication Networks
Volume 2, Issue 2 , September 2008, Pages 9-21
Abstract
Due to expansion of photonic crystal fiber (PCF) based optical devices in optical communication networks, the connection process between conventional optical fibers (COF) as transmission medium and these devices has attracted the researchers. Considering the splice joint between the COF and PCF, in this ... Read MoreDetermination of MIMO Systems Capacity in Uniformly Distributed Channel Error
Volume 2, Issue 2 , September 2008, Pages 23-28
Abstract
During the last few years, evaluation of MIMO systems capacity has been expanded, due to more bandwidth demands. In this paper, after reviewing the previous works, a new formula for MIMO systems capacity, in the case of uniformly distributed channel error is given. While in previous works, Gaussian distribution ... Read MoreVCO Design and Simulation Using TSMC 0.18 m Process to Meet IEEE802.11a Requirements
Volume 2, Issue 2 , September 2008, Pages 29-37
Abstract
A complimentary topology is used incorporating TSMC 0.18 mm process to design a CMOS VCO with the center frequency of 5.4 GHz. Simulation results showed tuning range of 13%. The phase noise at 1 MHz offset was measured to be -118.7 dBc/Hz. The VCO core power consumption was 3.3 mW when the power supply ... Read MoreDesign, Simulation and Fabrication of a Permenant Magnet Brush DC Motor
Volume 2, Issue 2 , September 2008, Pages 39-48
Abstract
Electrical motor with high performance and maintenance free is very atteractive for the special application in the case of limited energy sources and long operating board. Permenant magnet brush DC motor is very good candidate for such specific applications. In this paper,at first a mathematical model ... Read MoreOptimum Method in Blocking Sidelobe Distortion and Jammer from Radar Fundamental Signal
Volume 2, Issue 2 , September 2008, Pages 49-56
Abstract
One of the methods in creating disturbance in radar is to apply appealing jammer. These jammers send strong signals like target-return signals into radar. If these signals enter from main lobe of radar antenna, create false targets in different ranges. Besides if they enter from secondary lobes, radar ... Read MoreAnalytical Model for Overmodulation in EDFAs in the Presence of ASE
Volume 2, Issue 2 , September 2008, Pages 57-64
Abstract
We investigate the effect of ASE(Amplified Spontaneous Emission) on the gain modulation, that also referred to overmodulation. The gain modulation is the low-frequency (kHz) amplitude modulation of the EDFA pump and the communication signal used for propagating line monitoring information. We develop ... Read MoreGMM Optimization Using Neural Networks for Persian Language Detection
Volume 2, Issue 2 , September 2008, Pages 65-76