Highly Compact Multilayer Antenna arrays for Microwave Applications

The project relates to the design procedure and implementation of multilayer antenna array systems for microwave communication applications. Conventionally the array feeding network is realized on the same layer as that of radiating elements this causes losses and undesired coupling however, in multilayer technology, feeding section and radiating patches are made on different layers thus allowing user to choose optimum design topology and substrate material for feeding and radiating sections. The research proposed in this project will focus on the design methodology of multilayer antenna arrays for microwave systems using printed circuit board technology. The benefits of multilayer technology will be investigated and demonstrated by designing three classes of printed antenna arrays for different frequency bands in the microwave frequency bands. The first design will be “Ku (13.450 GHz) band multilayer yagi-uda antenna array for radar applications”, second will be “Multilayer Vivaldi antenna array for 5G application in K band (15 – 26 GHZ)”, and third will be “high gain three dimensional multilayer microstrip array for WLAN applications”.

Design of a Low-Cost Complete Blood Count System

In this project, we have developed a portable, low-powered, low cost and automated cell counting system. A lens-free shadow imaging technique (based on the blue light emitting diode (LED) and complementary metal oxide semiconductor (CMOS) image sensor) is explored. The shadow image of the blood cells i.e., diffraction sample, is passed through different image pre and post-processing steps to detect and count different blood cells. The developed system has a minimum acceptable accuracy and efficiency levels and produces acceptable results with partial or slightly degraded input samples.

Machine Vision System for Visually Impaired PeopleMachine Vision System for Visually Impaired People

The aim of this project is to develop an artificial vision system for visually impaired people. Salient features are human detection and recognition, currency recognition, obstacle detection, staircase detection, complete healthcare such as finding the blood pressure, sugar level, respiration rate, ECG and EMG etc. These entire features are available just by giving voice commands, results will be sent as a voice to earphones.

Automatic Monitoring and Detection System (AMDS) for Grey Traffic

With this fast growing telecom market, the bars are being raised which is leading to a continuous upgrade demand by the customer as well as for the operator/provider. From a customer point of view, one requires better security, privacy, and QoS. While security and privacy are also a must for operators as they want systems that would allow them to ensure revenues, optimized planning, maintenance and intelligent performance monitoring of the network. Such systems would be able to detect frauds through detailed and customizable reports. This fraud detection will lead to the identification of grey traffic to full extent.

The proposed AMDS will be able to provide information where and how much grey traffic is being channelled. It will function as a real-time mediation platform to facilitate a large number of VoIP data requests. It will guarantee the implementation of grey traffic detection that will be transparent, independent and non-meddling of underlying connectivity technology.

Dielectric Characterization for Agricultural & Pharmaceutical Applications Using Microwave Techniques, ICT R&D

The proposed project aims to address one of the key challenges of the dielectric characterization of solvents and biological materials within the pharmaceutical and agricultural industry. It is rather well-known that the dielectric properties of materials could be measured by using innovative microwave topologies to gain access to a wealth of information regarding the material including various other parameters such as the physiological and chemical changes. The technique involves exposing the material to microwave radiation and then acquiring the transmitted and the reflected signal to determine the propagation and attenuation constants of the wave as it progresses through the material. The acquired signals carry the information pertaining to the material and could be used to determine the contents. The field of dielectric characterization is well-known and many methodologies have been developed in the past. The aim of this project is to study and apply a novel class of miniature, compact and highly sensitive sensors to perform measurements on a range of materials.

Measurement of the Antenna Radiation Pattern in Principal Planes

This project aims to build an indigenous antenna test pattern measurement system. It consists of a rotating platform that is controlled by stepper motors. The platform holds the antenna under test and takes reading through the vector network analyzer on each step. The project is funded by COMSATS Research Grant Program.

Triband Frequency Selective Surfaces for WiFi Shielding 

Spatial microwave filters were built in this project to suppress three frequency bands. The project is funded by COMSATS Research Grant Program. The chemical etching technique has been used to manufacture shields.

Development of Liquid Level Sensor for the Transport Industry  

This is a joint research project conducted by CAST with OBES pvt Ltd. A highly sensitive capacitive level sensor has been designed in this project. The sensor is capable of measuring diesel/petrol levels in tanks with extremely high precision. The data is sent to the cloud via Ethernet.

Low profile Reflectarray Antennas for X band Satellite Communications 

The project was funded by a CRGP grant. Glass reflectarray antennas have been investigated in this project in the X band. The objective is to build a planar antenna reflectarray that can be realized on ordinary float glass and that is capable of capturing satellite signals.

8×8 stacked patch phased Array Antenna with Enhanced Bandwidth for C-band Applications 

A highly compact and high-gain antenna array has been investigated in this project. The project is funded by CRGP and it covers the design of patch antennas in multilayer configuration for broadband communications.

Restoration of Prototyping Facility for Microwave Components Fabrication at Undergraduate Level 

The project is funded by IEEE Antenna and Propagation Society to restore the fabrication facility at the ECE department. The LPKF milling machine has been repaired and made functional through this project

Practical Model Design and Flight Control of Birds Mimicking System

In this project, unmanned bird mimicking flapping wing air vehicle (BMFWAV) development (along with their dynamic analysis) will be considered. Furthermore, the aerodynamics and wing kinematics will be investigated for the flight control design of BMFWAV. In other words, this project aims to develop a physical model for BMFWAV and to formulate the mathematical model of the FWMUAV that can be used to understand its flight dynamics, stability, and control and can be used for autonomous flight controller design.

Spatial Filters on Glass Substrate for EMI Shielding in C & S-band 

This project investigates the idea of building EMI shields on glass windows and doors for C and S-band applications. Copper stickers have been used to realize the sheets by applying them on ordinary glass windows. The design has been built with a chemical etching process.

Detection and Quantification of Rare Analytes in Biological Samples using Dielectrophoresis Spectroscopy

This project involves a biosensor for the detection of rare antigens in a sample. The investigation was done by observing dielectrophoretic behavior of polystyrene beads coated with biotin and streptavidin.