Browsing by Author "Ramadoss, Ramesh"

Now showing items 1-15 of 15

Ad-hoc and Multi-hop Wireless Sensor Networks for Activity Capture in Cooperative Robotics

Raghunathan, Arun (2006-12-15)

Cooperative robotics has been the focus of attention of various groups in recent years. The idea of using a team of robots instead of a single one to execute a task came from the necessity of accomplishing a task that is ...

Analysis and Correction of Three-Dimensional Proximity Effect in Binary E-Beam Nano-Lithography

Anbumony, Kasi (2007-05-15)

One of the fundamental problems in transferring a circuit pattern onto a substrate using electron beam lithography is the proximity effect, which is due to electron scattering in the resist and results in the ``non-ideal"" ...

Design and Implementation of a Software Defined Radio Receiver for AM Band

Shetye, Kalpesh (2007-08-15)

Since the mid-1990s, the radio industry has actively focused on implementing more and more radio functions in the digital domain. This has been furthered by availability of high speed, high performance data converters and ...

Design of MEMS-Based Tunable Antennas, Organic Transistors and MEMS-Based Organic Control Circuits

Maddela, Madhurima (2008-05-15)

The advent of precision three-dimensional micromachining technologies in the last couple of decades has seen the birth of an exciting and potentially revolutionary field called Microelectromechanical Systems (MEMS). ...

Design, Fabrication, and Dynamic Modeling of a Printed Circuit Based MEMS Accelerometer

Rogers, John (2007-05-15)

A MEMS capacitive-type accelerometer fabricated using printed circuit processing techniques is presented. A Kapton polymide film is used as the structural layer for fabricating the MEMS accelerometer. The accelerometer ...

Efforts Towards the Design and Development of an Electromagnetic Induction Sensor Optimized for Detection and Discrimination of Unexploded Ordnance

Palasagaram, Nagasanjeeva (2006-05-15)

This thesis provides a detailed description of efforts towards the development of a time domain electromagnetic induction (EMI) system optimized for detection and discrimination of Unexploded Ordnance (UXO). A time domain ...

Electronically Steerable Antenna Array using PCB-based MEMS Phase Shifters

Sundaram, Ananth (2006-08-15)

In this thesis, a novel approach for cost effective fabrication and assembly of MEMS based Electronically steerable antenna (ESA) arrays’ using flexible printed circuit processing techniques has been developed. The critical ...

Energy Efficiency in Wireless Sensor Networks

Prasad, Pratap (2007-05-15)

Wireless Sensor Networks are an emerging area of Communication technology. These networks are made up of tiny wireless sensors that collect and transmit data toward a sink node(s). Energy efficiency in sensor networks ...

Experimental and Theoretical Investigation of Contact Resistance and Reliability of Lateral Contact Type Ohmic MEMS Relays

Almeida, Lia (2006-12-15)

In this thesis, the reliability of electrostatically actuated ohmic contact type MEMS relays has been investigated. Multi-contact MEMS relays using electrostatic comb-drive actuators have been used in this study. The ...

Flip Chip and Lid Attachment Assembly Process Development

Ding, Fei (2006-12-15)

Flip chip technology offers numerous advantages over conventional packages by virtue of its electrical performance, greater input/output (I/O) flexibility and small size. This study focuses on two flip chip assembly process ...

MEMS Based Tunable Microstrip Patch Antenna Fabricated Using Printed Circuit Processing Techniques

Jackson, Ronald (2006-08-15)

This thesis presents MEMS-based electrostatically tunable microstrip patch antennas fabricated using printed circuit processing techniques. The microstrip patch is patterned on the top side of a flexible kapton polyimide ...

Microfabricated Electrode Arrays Suitable for Stimulation and Recording in Cardiac Electrophysiological Studies

Sivaswamy, Senthil (2008-05-15)

Sudden cardiac arrest (SCA) caused by ventricular fibrillation is one of the most serious heart related problems in the United States today which is responsible for hundreds of thousands of deaths per year. The goal of ...

Nonlinear Control and Design Methodologies for Electrostatic MEMS Devices

Ozmun, Phillip M. (2007-08-15)

A method to extend the travel range of electrostatically actuated MEMS device is presented. A gap closing actuator (GCA) is used to demonstrate the method. An output (position)feedback controller is presented, along with ...

A Study of Electromagnetic Induction Systems for the Detection of Unexploded Ordnance

Jain, Neha (2008-05-15)

This thesis presents a study of a time domain electromagnetic induction (EMI) system used for detection and discrimination of unexploded ordnance. In general, EMI system components include transmitter and receiver coils, ...

A Tunable Coplanar Patch Antenna, a Polymer MEMS Based Tunable Bandpass Filter, and a Chip-In-Polymer Packaging Technology

Holland, Brian (2007-12-15)

This thesis presents a tunable coplanar patch antenna, a Polymer MEMS-based tunable bandpass filter, and a chip-in-polymer packaging technology. First, a Coplanar Waveguide (CPW) based patch antenna is integrated with a ...