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Electrical Engineering Department Electrical Engineering Department Electrical Engineering Department Electrical Engineering Department

University of Engineering and Technology Lahore University of Engineering and Technology Lahore University of Engineering and Technology Lahore University of Engineering and Technology Lahore

WIRELESS

Electrical Engineering Department Electrical Engineering Department Electrical Engineering Department Electrical Engineering Department

University of Engineering and Technology Lahore University of Engineering and Technology Lahore University of Engineering and Technology Lahore University of Engineering and Technology Lahore

IRELESS COMMUNICATION

LABORATORY

Electrical Engineering Department Electrical Engineering Department Electrical Engineering Department Electrical Engineering Department

University of Engineering and Technology Lahore University of Engineering and Technology Lahore University of Engineering and Technology Lahore University of Engineering and Technology Lahore

OMMUNICATION

LAB OBJECTIVE:

We are living in the information age and wireless communication networks

provide the critical infrastructure for anytime, anywhere connectivity to information. Advances

in computing, communication and sensing technologies are enabling unprecedented new ways

in which information can be gathered, processed and shared wirelessly. However, the rapid

proliferation of a dazzling array of networks of heterogeneous wireless communication devices

poses immediate and significant technical challenges. One of the biggest challenges is the

efficient use of the shared and essentially limited radio frequency spectrum over which

wireless devices communicate. On the one hand, wireless technology is racing ahead and

enabling a broad array of wireless networks, including cellular, ad hoc, mesh, local area,

personal and sensor networks, supporting an equally rich array of multimedia applications such

as voice, data, images, and video. In addition, practicing engineers, computer specialists, and

managers have to re-educate themselves in the area of wireless technology.

The University of Engineering and Technology Lahore recognized the need to

prepare its students for careers in wireless and successfully developed one of the first

instructional Wireless Communication laboratories inception in 1998, with a funding of

$600,000, in collaboration with Higher Education Commission (HEC). The laboratory has

provided many students during the past decade with the opportunity to acquire both in-depth

theoretical understanding and hands-on experience in this rapidly growing discipline. Since its

inception the Wireless Communications Research Laboratory at the University of Engineering

and Technology has been investigating a wide range of problems in the basic theory and

practical design strategies for wireless communication systems and networks.

The lab aims at achieving the following objectives :

� Provision of the state of the art Facilities for Research Projects in Wireless

Communication Field.

� Developing technical solution to various Wireless Communication Related Projects

� Developing Trained Personals for educating and training for upcoming graduates in

wireless communication.

The lab facility can be used to investigate the problems in the following fields:

� Wireless Channel Modeling in Time, Frequency and Space.

� Communication over Dispersive Wireless Channels.

� Cognitive Wireless Networks

Wireless Communication Lab Project Director:

Dr. Noor Muhammad SheikhEngineering at UET Lahore. He did his PhD in 1979 from University of Engineering & Technology, Lahore. His research interests include Communication System, Digital Communication, Digital Signal Processing, Signal and System, Detection and Estimation and Communication Theory. He has a large number of publications in the above area in Intand Conferences.

Dr Mohammad Saleem Mianof Electrical Engineering UET Lahore, Pakistan. He completed his Doctorate from University of Manchester U. K. in 1998. He has a vast experience of working with the modern trend and technologies in the area of Digital Signal Processing and has a number of International Publications in this area. He worked in a DSP research group for audcompression in University of Manchester UK. 1993

He has Supervised theSimulation and Hardware Implementation of X band Transceiver”Wireless Communication Lab.

Wireless Communication Lab Director:

Dr. Muhammad Imran SheikhEngineering Department, UET Lahore. He completed his Doctorate in wireless communications from The University of Birmingham, Birmingham, U.K. in 1997. He is a director of DSP and Wireless Communication Lab and establishment of the Laboratory. The laboratory provides an integrated environment for the development of a variety of wireless communication systems. His research interests include Antenna Theory Analysis and Design, Array Signal Processing, Digital Signal Processing, Wireless Communication Systems, Information Theory and Design

Researcher’s :

Wireless Communication Lab Project Director:

Dr. Noor Muhammad Sheikh is a Dean of Faculty of Electrical Engineering at UET Lahore. He did his PhD in 1979 from University of

echnology, Lahore. His research interests include Communication System, Digital Communication, Digital Signal Processing, Signal and System, Detection and Estimation and Communication Theory. He has a large number of publications in the above area in International Journals

Dr Mohammad Saleem Mian is a Chairman of Department of Electrical Engineering UET Lahore, Pakistan. He completed his

versity of Manchester U. K. in 1998. He has a vast experience of working with the modern trend and technologies in the area of Digital Signal Processing and has a number of International Publications in this area. He worked in a DSP research group for audio compression in University of Manchester UK. 1993-1998.

He has Supervised the marvelous project “Design,Simulation and Hardware Implementation of X band Transceiver” in Wireless Communication Lab.

Wireless Communication Lab Director:

Dr. Muhammad Imran Sheikh is a Professor in the Electrical Engineering Department, UET Lahore. He completed his Doctorate in wireless

The University of Birmingham, Birmingham, U.K. in 1997. He is a director of DSP and Wireless Communication Lab and Played a vital role to establishment of the Laboratory. The laboratory provides an integrated environment for the development of a variety of wireless communication systems. His research interests include Antenna Theory Analysis and Design, Array Signal

g, Digital Signal Processing, Wireless Communication Systems, Information Theory and Design

Researcher’s :

is a Dean of Faculty of Electrical Engineering at UET Lahore. He did his PhD in 1979 from University of

echnology, Lahore. His research interests include Communication System, Digital Communication, Digital Signal Processing, Signal and System, Detection and Estimation and Communication Theory. He

ernational Journals

is a Chairman of Department of Electrical Engineering UET Lahore, Pakistan. He completed his

versity of Manchester U. K. in 1998. He has a vast experience of working with the modern trend and technologies in the area of Digital Signal Processing and has a number of International

io

project “Design, in

is a Professor in the Electrical Engineering Department, UET Lahore. He completed his Doctorate in wireless

The University of Birmingham, Birmingham, U.K. in 1997. He vital role to

establishment of the Laboratory. The laboratory provides an integrated environment for the development of a variety of wireless communication systems. His research interests include Antenna Theory Analysis and Design, Array Signal

g, Digital Signal Processing, Wireless Communication Systems,

The Wireless Communication Lab is equipped with

and software for doing advanced research and development work in Wireless

Communication field.

Software

ADS

HFSS

Hardware

Lab Facilities

The Wireless Communication Lab is equipped with the complete set of hardware

for doing advanced research and development work in Wireless

Hardware

Agilent E 7405A EMC Analyzer

Agilent E 4438C Vector Signal Generator

Agilent E8408A Vector signal Analyzer

Agilent 8720ES Network Analyzer

Agilent N8975A Noise Figure Analyzer

Agilent 1671G RF Logic Analyzer

Agilent 54832B Oscilloscope

Agilent 83623 Synthesized Sweep/CW Generator

Lab Facilities:

complete set of hardware

for doing advanced research and development work in Wireless

Agilent E 7405A EMC Analyzer

Agilent E 4438C Vector Signal

Agilent E8408A Vector signal

Agilent 8720ES Network Analyzer

Agilent N8975A Noise Figure

Agilent 1671G RF Logic Analyzer

Agilent 54832B Oscilloscope

Agilent 83623 Synthesized Sweep/CW Generator

Vector Signal Generator E4438C:

Agilent's E4438C ESG vector signal

generator combines outstanding RF

performance and sophisticated

baseband generation to deliver

calibrated test signals at baseband, IF,

and RF frequencies up to 6 GHz.

Offering an internal baseband generator

with arbitrary waveform and real-time

I/Q capabilities, ample waveform

playback and storage memory, and a

wide RF modulation bandwidth, the

E4438C ESG is equipped to test

today's complex wireless systems and

their components.

The E4438C ESG is an adaptable

platform with optional capabilities to

customize the instrument for baseband

and RF test applications ranging from

simple distortion test and general

purpose troubleshooting to baseband

coding algorithm development,

advanced transceiver design

verification, and high volume

manufacturing. Its modular architecture

makes it easy to configure the

instrument with the level of

performance and signal creation

capability you need today with the

option to upgrade in the future.

Network analyzer 8720ES:

The Agilent 8720ES vector network

analyzer allows complete

characterization of RF and microwave

components. The 8720ES includes an

integrated synthesized source, test set

and tuned receiver. The built-in S-

parameter test set provides a full range

of magnitude and phase measurements

in both the forward and reverse

directions. Built-in vector accuracy

enhancement techniques include full

two-port, adapter-removal, and

optional TRL calibration.

E7405A EMC Analyzer;

Early evaluation of your design's EMI

performance is essential for a

successful product. The E7405A EMC

standard analyzer provides the

capabilities you need in an analyzer to

make in-house EMI precompliance

HHaarrddwwaarree::

testing a reality.The EMC standard

analyzer offers you the best value with

more productivity options built-in, and

guarantees the fast delivery.

Frequency Range: 9KHZ - 26.5GHZ

Maximum safe input level: +30 dBm

EMI compatibility Conducted and radiated

emissions is in compliance with CISPR Pub.

11/1990 Group 1 Class B5

Audible noise < 40 dBa pressure and < 4.6

Bels power (ISODP7779)

Military specification Type tested to the

environmental specifications of MIL-PRF-

28800F, class 3

Noise Figure Analyzer N8975A:

The Agilent N8975A is a high performance

noise figure analyzer designed to make fast,

accurate and repeatable noise figure

measurement. With the N8975A ease of use

features, you can set up complex

measurements simply and easily giving you

repeatable and reliable results you can trust .

The N8975A also has the ability to

characterize amplifiers and frequency

translating devices, including LO control over

dedicated 2nd GPIB. The N8975A offers

simultaneous noise figure and gain

measurements with the ability to view, print

and save the data/display in multiple formats

RF Logic Analyzer:

Agilent Technologies 1670G Series benchtop

logic analyzers enable design engineers to

pur-chase a logic analyzer that meets their

exact needs and their budget. The 1670G

Series models have the option of a built-in,

500 MHz, 2 GSa/s oscilloscope that can be

triggered by the logic analyzer. Some of the

toughest hardware debug problems can be

found only with the digital triggering

capabilities of a logic analyzer and can be

solved only with the analog resolution of an

oscilloscope.

An optional pattern generator in the

1670G Series allows designers to

substitute stimulus for missing

subsystems during product

development. The 1670G Series helps

simplify the capture and analysis of

complex events with optional 256K or

2M deep memory.

Key Specifications

Optional 2-channel oscilloscope or 32

channel pattern generator

102 channel portable logic analyzer

500 MHz timing speed

Experiments are designed in order to cover the following

topics

� Analog and Digital Modulation

� Noise Figure Measurement

� Scattering Parameters Measurement

� Raised Cosine Filter Characteristic

� Voltage Standing Wave Ratio Measurement

� Smith Chart Demonstration

Experiment # 1

Measurement of S Parameters, S11 (input

Reflection Coefficient), S22 (output Reflection

Coefficient), S12 (return Loss), S21 (Forward

Gain) of RF & Microwave Devices (e.g.

Amplifiers, Filters, Power Dividers, Couplers))))

Experiment # 2Experiment # 2Experiment # 2Experiment # 2

Measurement of Voltage Standing Wave Ratio

(VSWR) of RF & Microwave Devices.

Courses Taught:

The Major courses related to this lab are mentioned below

(1) MICROWAVE (2) DIGITAL COMMUNICATION

(3) Electromagnetic Theory (4) Transmission Lines and Antenna’s

List of Experiments:

Experiment # 3 Experiment # 3 Experiment # 3 Experiment # 3

Measurement of Noise Figure of RF &

Microwave Devices (e.g. Low Noise Amplifiers,

Mixers)

Experiment # 4Experiment # 4Experiment # 4Experiment # 4

Measurement of performance of Analog

Modulators (AM, FM, or PM) using Vector

Signal Analyzer.

Experiment # 5Experiment # 5Experiment # 5Experiment # 5

Measurement of performance of I/Q (digital)

Modulators (PSK, FSK, or QAM) using Vector

Signal Analyzer.

Experiment # 6Experiment # 6Experiment # 6Experiment # 6

Measurement of the Effect of Raised Cosine

Filter, Roll off factor on the Constellation plot

of of I/Q (digital) Modulation (PSK, FSK).

Experiment # 7Experiment # 7Experiment # 7Experiment # 7

Measurement of the Digital Modulators, Error

Vector magnitude statistics, vs. time,

spectrum

Experiment # 8Experiment # 8Experiment # 8Experiment # 8

Measurement of the Tilt Angle of the Dipole

Antenna

Experiment # 9Experiment # 9Experiment # 9Experiment # 9 Measurement of the Relative Permittivity of

the Teflon Sheet

The facilities available in the lab provide excellent opportunities to the undergraduate students to

enhance their understanding of Wireless Communication

and working on various projects. These facilities are also q

students to carry out their research. Some of the recently completed projects are as under

Simulation and Hardware Simulation and Hardware Simulation and Hardware Simulation and Hardware

Implementation of S Band Implementation of S Band Implementation of S Band Implementation of S Band

Transceiver:Transceiver:Transceiver:Transceiver:

This transceiver is designed for Satellite

and terrestrial microwave links as well as

for Wireless LAN and Bluetooth

applications in 2.4 to 2.5 GHz range. It is

a front end transceiver module. In the

transmitter part, it takes IF signal centered

at 70MHz and up-converts it to a

frequency of 2.45 GHz along with

filtering and amplification of the signal so

that it can be sent in air or space. In the

receiver part, it receives the signal at 2.45

GHz from the antenna, amplifies it and

then down-converts it to IF frequency of

70MHz and then this signal can be fed to

demodulator and further to a data

processing module. ADS (Advanced

Design System) simulation tool by

Agilent has been used for design of the

system, PCAD and Gerber softwares are

used for designing Layouts of PCBs,

while CircuitCam and BoardMaster

softwares are used for etching of PCBs on

LPKF CNC milling machine.

Research Projects:

facilities available in the lab provide excellent opportunities to the undergraduate students to

ance their understanding of Wireless Communication concepts by performing experiments

and working on various projects. These facilities are also quite conducive for the graduate

students to carry out their research. Some of the recently completed projects are as under

DesignDesignDesignDesign and Implementation and Implementation and Implementation and Implementation

of Orthomode Transduceof Orthomode Transduceof Orthomode Transduceof Orthomode Transduce

An orthomode transducer

duct component of the class of microwave

circulators. It is commonly referred to as an

OMT.Such device may be part of a

antenna feed. Orthomode transducers serve

either to combine or to separate two

microwave signal paths. One of the paths

forms the uplink, which is transmitted over

the same waveguide as the received signal

path or downlink path. For

the transmission and reception pat

90° to each other.

A much simpler approach

OMT might be to arrange 4 planar probes

symmetrically in a squa

waveguide.Electric fields generated by

opposite probes driven 180 degrees out of

phase should couple to the TE11 waveguide

mode. By symmetry, orthogonal pairs of

probes should be uncoupled

In this Project HFSS software is used for

designing and Simulating the structure of

Orthomode Transducer.

Simulation and Hardware Simulation and Hardware Simulation and Hardware Simulation and Hardware

Implementation of S Band Implementation of S Band Implementation of S Band Implementation of S Band

This transceiver is designed for Satellite

and terrestrial microwave links as well as

Wireless LAN and Bluetooth

applications in 2.4 to 2.5 GHz range. It is

a front end transceiver module. In the

transmitter part, it takes IF signal centered

converts it to a

frequency of 2.45 GHz along with

signal so

that it can be sent in air or space. In the

receiver part, it receives the signal at 2.45

GHz from the antenna, amplifies it and

converts it to IF frequency of

70MHz and then this signal can be fed to

demodulator and further to a data

processing module. ADS (Advanced

Design System) simulation tool by

Agilent has been used for design of the

system, PCAD and Gerber softwares are

used for designing Layouts of PCBs,

while CircuitCam and BoardMaster

softwares are used for etching of PCBs on

Research Projects:

facilities available in the lab provide excellent opportunities to the undergraduate students to

concepts by performing experiments

cive for the graduate

students to carry out their research. Some of the recently completed projects are as under.

and Implementation and Implementation and Implementation and Implementation

of Orthomode Transduceof Orthomode Transduceof Orthomode Transduceof Orthomode Transducerrrr::::

orthomode transducer is a microwave

duct component of the class of microwave

circulators. It is commonly referred to as an

.Such device may be part of a VSAT

Orthomode transducers serve

either to combine or to separate two

microwave signal paths. One of the paths

, which is transmitted over

as the received signal

path. For VSAT modems

the transmission and reception paths are at

A much simpler approach for designing

t be to arrange 4 planar probes

symmetrically in a square or round

fields generated by

opposite probes driven 180 degrees out of

phase should couple to the TE11 waveguide

mode. By symmetry, orthogonal pairs of

probes should be uncoupled

In this Project HFSS software is used for

designing and Simulating the structure of

rthomode Transducer.

LIST OF PROJECTS SIMULATED in Advance Design

System By Agilent Technologies

Design and Implementation of QSPK Modulator

Design simulation and implementation of X-Band

Transceiver

Design and Implementation of Fractal Antenna and

Arrays

Design and implementation of DR Oscillator

.

Design and Implementation of Passive UHF RFID

system for library applications

Design and Implementation of4-Elment Micro strip

patch antenna array

Design and Implementation of J-Band (16 GHz)

Cavity-Controlled Phase-Locked resonator oscillator

Design and Implementation of Antenna Arrays for

wireless communication

Design and Implementation of PLL-synthesized UHF

frequency Transceiver.

Testing Facilities:

Wireless Communication Lab provides Electromagnetic Compatibility (EMC) testing

Facility to different industries .

Conducted emissions:

Test for noise or interference placed on power or data lines by coupling the E7405A

instrument to the power or data line through a line impedance stabilization network

(LISN) device or absorbing clamp.

Radiated emissions :

When combined with a broadband antenna, the E7405A provides the capabilities to

check for radiated emissions coming from your DUT. This is best done in an area that is

free from reflective objects such as an open area or EMI chamber.

“Efficient Implementation of Deterministic 3-D Ray tracing model to predict propagation losses in Indoor Environments”

Proceedings of the “Thirteenth IEEE International Symposium on Personal, Indoor and Mobile Radio Comms, (PIMRC 2002)”, Sept 15 – 18, 2002, Lisbon, Portugal

“Improved propagation prediction model for wireless channels using impedance diffraction coefficients” Proceedings of the “Fourth IEEE National Multi Topic Conference, (INMIC 2000)”, September 10 –11, 2000, Marriott Hotel, Islamabad

“Error Characterization for ray-optical technique employing perfectly conducting wedges”

Proceedings of the “Fifth IEEE National Multi-Topic Conference, (INMIC 2001)”, December 28-30, 2001, LUMS, Lahore

List Of Publications:

Future

The future plan is to build and establish

Communication Lab. An RF Anechoic C

electromagnetic waves, from the internal surfaces

chamber, the equipment under test receive RF signals from the signal source, not

reflected from another part of the chamber. This ensures the integrity of the testing

being conducted. Furthermore, the shielding of the chambe

equipment located outside of the chamber.

Future PLAN:

The future plan is to build and establish an Anechoic Chamber in the

Anechoic Chamber is designed to suppress the

electromagnetic waves, from the internal surfaces. In a well-designed RF anechoic

chamber, the equipment under test receive RF signals from the signal source, not

of the chamber. This ensures the integrity of the testing

being conducted. Furthermore, the shielding of the chamber limits interference from

equipment located outside of the chamber.

in the Wireless

suppress the reflected

designed RF anechoic

chamber, the equipment under test receive RF signals from the signal source, not

of the chamber. This ensures the integrity of the testing

r limits interference from