Browsing by Subject "Electronics"
Now showing items 1-20 of 23
-
Bidding strategies for dynamic spectrum allocation
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)Dynamic Spectrum Allocation is the process of assigning spectrum licenses in terms of the chunks of the spectrum band to the Wireless Service Providers (WSPs). This allocation assignment is being done as per the WSPs' ... -
CMOS latched comparator design for analog to digital converters
(Dhirubhai Ambani Institute of Information and Communication Technology, 2007)Conventional comparators are at the two extremes as far as power delay product and isolation between input and output is concern. Either they achieved very good isolation at the cost of power in the preamplifier or save ... -
CMOS RFIC mixer design
(Dhirubhai Ambani Institute of Information and Communication Technology, 2007)A CMOS RF (Radio Frequency) up/down conversion mixer results in a reasonable increase in transceiver integration and a reduction in cost. The design of mixers faces many compromises between conversion gain(GC), local ... -
Comparison of single-bit and multi-bit second order sigma-delta modulators
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)This work deals with comparison of Single-bit and Multi-bit Second Order Sigma-Delta Modulators at system level for various performance metrics and different circuit nonidealities. For this work of comparison, Boser-Wooley ... -
Design of a CMOS variable gain amplifier
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)In advanced CMOS technologies as device dimensions are decreasing, requirement for lower supply voltages are increasing to make certain device reliability. So, challenges for analog circuit designers are to discover new ... -
Design of a low power high slew rate OPAMP and to study its impact on sigma delta modulator's performance
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)This thesis presents the work done on the design of a low-power, high slew rate opamp and subsequently the design of a fully-differential second order Switched-Capacitor architecture of a Sigma Delta modulator in 1.8 V, ... -
Design of low power and high speed decoder for 1MB memory
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)Technology scaling is accompanied by rise in leakage power dissipation. This thesis proposes a voltage controllable circuit in the feedback path of the decoder, which drastically reduces the standby leakage current with ... -
Design of low voltage high performance voltage controlled oscillator
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)In this thesis an ultra low voltage differential capacitive feedback VCO is being proposed .The VCO operates at very low supply voltage of 0.6V.The VCO uses techniques like Forward Body Bias (FBB), and capacitive feedback ... -
Design of low-voltage, low-power, wide-band CMOS LC VCO using active inductors
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)In this thesis the design of low-voltage, low-power, wide-band CMOS LC VCO using active inductor has been proposed. The oscillator is based upon the classic LC-tuned negative-resistance topology, with a novel active inductor ... -
Design of multi-band fractal antenna for satellite navigation application
(Dhirubhai Ambani Institute of Information and Communication Technology, 2009)Recent efforts by several researchers around the world to combine fractal geometry with electromagnetic theory have led to a plethora of new and innovative antenna designs. This research proposal has been primarily focused ... -
Extremely low voltage operational amplifier design with rail-to-rail input common mode range
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)Increasing trends towards battery operated systems demand circuits to be designed at low voltages. Low voltage operation severely limits the operational amplifier as a voltage buffer as the input common mode range available ... -
FM based pipeline ADC
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)This thesis aims at designing a new architecture for an FM based pipelined Analog to Digital Converter (ADC). It is based on the fact that power is a function of voltage and therefore handling with voltage becomes a difficult ... -
Frequency compensation technique for low voltage three stage operational amplifier
(Dhirubhai Ambani Institute of Information and Communication Technology, 2007)This thesis presents a new frequency compensation technique for low supply voltage three-stage operational amplifier at higher loads. It is based on the miller splitting and pole-zero cancellation using feed-forward path. ... -
Implementation of constant gm CMOS op-amp input stage using overlapping of transition region at 0.18 um technology
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)Operational amplifier is the backbone of most of analog circuit design. For low voltage applications, op-amp should have a rail-to-rail common mode input voltage. This report describes the implementation of a constant gm ... -
Investigation on multi-band fractal antennas for satellite applications
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)Remote sensing is a very important application of satellite communication. In remote sensing applications, multiple frequencies are utilized. Use of different antennas for different frequencies is a complex task and so use ... -
Linearity enhancement technique for low noise amplifiers
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)The development of CMOS technology in to deep sub micron enables the use of such technology for implementation for GHz RF circuits. Personal communication needs a low cost and low noise RF transceiver for cellular applications ... -
Low power high slew-rate adaptive biasing circuit for CMOS amplifiers
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)Adaptive biasing technique in analog and mixed signal integrated circuit design is used mainly to reduce the power and improve the driving capability. It has found many applications, like power amplifiers in RF communication ... -
Low power high speed amplifier design
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)The operational amplifier (op-amp) is one of the important component in analog to digital converters. The power consumption of these converters mostly depend on the op-amps used. The accuracy and speed performance of analog ... -
Low power SAR ADC with split capacitor DAC
(Dhirubhai Ambani Institute of Information and Communication Technology, 2013)Analog to Digital convertor and Digital to Analog convertors plays a vital role in Mixed Signal Design. Nowadays, the demand for designing of Low power, Moderate Resolution ADCs are increasing for Bio-medical applications ... -
Novel architecture for a CMOS low noise amplifier at 2.4 GHz
(Dhirubhai Ambani Institute of Information and Communication Technology, 2005)Radio frequency design has been one of the major research areas in the recent past. Emergence of several Wireless Communication standards has demanded availability of different analog blocks for use in transceivers with ...