Electronics and Communication Engineering

ADE & BEEE LAB

BASIC SIMULATION LAB:

BS Lab has been established in the year 2010 caters the need of II year UG students. This lab has sufficient number of systems with networking to implement the basic concepts in the area of signal and systems using MATLAB 8.6 software.

List of Experiments:

1. Basic Operations on Matrices.
2. Generation of Various Signals and Sequences (Periodic and Aperiodic), such as Unit Impulse, Unit Step, Square, Saw tooth, Triangular, Sinusoidal, Ramp, Sinc.
3. Operations on Signals and Sequences such as Addition, Multiplication, Scaling, Shifting, Folding, Computation of Energy and Average Power.
4. Finding the Even and Odd parts of Signal/Sequence and Real and Imaginary parts of Signal.
5. Convolution for Signals and sequences.
6. Auto Correlation and Cross Correlation for Signals and Sequences.
7. Verification of Linearity and Time Invariance Properties of a given Continuous/Discrete System.
8. Computation of Unit sample, Unit step and Sinusoidal responses of the given LTI system and verifying its physical realiazability and stability properties.
9. Gibbs Phenomenon Simulation.
10. Finding the Fourier Transform of a given signal and plotting its magnitude and phase spectrum.
11. Waveform Synthesis using Laplace Transform.
12. Locating the Zeros and Poles and plotting the Pole-Zero maps in S-plane and Z-Plane for the given transfer function.
13. Generation of Gaussian noise ( Real and Complex), Computation of its mean, M.S. Value and its Skew, Kurtosis, and PSD, Probability Distribution Function.
14. Verification of Sampling Theorem.
15. Removal of noise by Autocorrelation / Cross correlation.
16. Extraction of Periodic Signal masked by noise using Correlation.
17. Verification of Weiner-Khinchine Relations.
18. Checking a Random Process for Stationarity in Wide sense.

Major Equipments required for Laboratories:

1. Computer System with latest specifications connected
2. Window Xp or equivalent
3. Simulation software-MAT Lab or any equivalent simulation software

IC APPLICATIONS LAB

Integrated circuits are the present state of art of IC Technology. It is one of the core areas of ECE and constitutes the largest applications in today's world. This lab is useful for the students

1. To do project works
2. To build as IC Designer and IC Verification Engineer

The First part of Lab is well equipped with Linear ICs such as μA741 op-amp, SE/NE 555Timer, 78XX Series and 79XX Voltage Regulators and PLL 565. Apart from these the Lab has IC Tester, Bread Board Trainer kits, 20MHs CRO’s,  Regulated power Supplies, Functions Generators.

Design and Implementation of:

1. Inverting and Non-Inverting Amplifiers using Op Amps
2. Adder and Subtractor using Op Amp.
3. Comparators using Op Amp.
4. Integrator Circuit using IC 741.
5. Differentiator Circuit using Op Amp.
6. Active filter Applications-LPF, HPF (First Order)
7. IC 741 waveform Generators-Sine, Square wave and Triangular Wave8. Mono-Stable Multivibrator using IC 555.
8. Astable multivibrator using IC 555.
9. Schmitt Trigger Circuits using IC 741.
10. IC 565-PLL Applications.
11. Voltage Regulator using IC 723
12. Three terminal voltage regulators-7805, 7809, 7912

Major Equipments required for Laboratories:

1. 5 V Fixed Regulated Power Supply/ 0-5V or more Regulated Power Su2. 20 MHz Oscilloscope with Dual Channel.
2. Bread board and components/ Trainer Kit.
3. Multimeter.

ANALOG AND DIGITAL COMMUNICATIONS (ADC) LAB

ADC LAB was introduced to Electronics & Communication Engineering (ECE) students to make them understand how a signal in communication is transmitted to long distances using a process called Modulation.

ADC Lab provides student an opportunity to understand how Real time applications such as Radio, TV, mobile &so on work using different types of Modulation schemes.

ADC lab provides insights which are useful for students planning their careers in the field associated with communication such as Telecom, Satellites, RADAR etc.

ADC subject & lab is offered in II Year-II Semester (R16) for ECE students and they are prerequisite for understanding different subjects such as Digital Communication, Cellular Mobile Communication, Wireless Communication Networks

The Laboratory is well equipped with different Modulation and Demodulation kits such as AM, FM, DSB-SC, SSB-SC, and TDM etc. Also the above Experiments have been simulated using “MATLAB Version 7.6 & 8.6”.

The Lab is also equipped with a Spectrum analyzer, Digital storage Oscilloscopes of 40 MHz, 4 channel 60MHz Digital storage Oscilloscopes, Radio Frequency(RF) signal Generator and a Dynamic radio demonstrator.

List of Experiments:

1. 1. Amplitude modulation and demodulation
   2. Spectrum analysis of AM
2. 1. Frequency modulation and demodulation
   2. Spectrum analysis of FM
3. DSB-SC Modulator & Detector
4. SSB-SC Modulator & Detector (Phase Shift Method)
5. Frequency Division Multiplexing & De multiplexing
6. Pulse Amplitude Modulation & Demodulation
7. Pulse Width Modulation & Demodulation
8. Pulse Position Modulation & Demodulation
9. PCM Generation and Detection
10. Delta Modulation
11. Frequency Shift Keying: Generation and Detection
12. Binary Phase Shift Keying: Generation and Detection
13. Generation and Detection (i) DPSK (ii) QPSK

Major Equipments required for Laboratories:

1. CROs: 20MHz
2. Function Generators: 2MHz
3. Spectrum Analyzer
4. Regulated Power Supplies: 0-30V
5. MAT Lab/Equivalent Simulation Package with Communication tool box
6. Analog and Digital Modulation and Demodulation Trainer Kits.

MICROPROCESSOR & MICRO CONTROLLER (MP&MC) LAB

The MPMC lab is established to satisfy the needs of students in the area of embedded systems design which is one of the most emerging areas.

The MPMC laboratory provides students with an opportunity to gain experience in microprocessor and microcontroller based system design, Assembly language programming and I/O interfacing techniques.

This laboratory is offered in III Year-II Semester for ECE students and IV Year –I Semester for EEE students as per JNTU curriculum.

The lab is majorly equipped with 30 Microprocessor(8086 ) trainer kits, 20 Microcontroller(8051) trainer kits and 45 External interfacing devices(like 8255 PPI,8257 DMA,8251 USART,8259 PIC , ADC , DAC , Keyboard interface, Tone generator, Traffic Light Controller ,LCD interface ,Elevator ,Thumb wheel ,Temperature Controller ,SRAM and DRAM interface etc.. )

In addition to these there are 62 Computer systems with latest configuration. The lab also has a 50 user licensed KEIL software and MASM software. For better understanding of students and for demonstration and explanation a LCD projector is also fixed in the lab. A 11 KVA UPS is also available for uninterrupted power supply.

Students can make use of this laboratory to do Mini/Major projects in the area of IOT-embedded systems which is one of the latest technologies that offers a lot more placement opportunities.

List of Experiments:

1. Programs for 16 bit arithmetic operations 8086(using various addressing modes)
2. Programs for sorting an array for 8086.
3. Programs for searching for a number of characters in a string for 8086.
4. Programs for string manipulation for 8086.
5. Programs for digital clock design using 8086.
6. Interfacing ADC and DAC to 8086.
7. Parallel communication between two microprocessor kits using 8255.
8. Serial communication between two microprocessor kits using 8251.
9. Interfacing to 8086 and programming to control stepper motor.
10. Programming using arithmetic, logical and bit manipulation instructions of 8051.
11. Program and verify Timer/Counter in 8051.
12. Program and verify interrupt handling in 8051.
13. UART operation in 8051.
14. Communication between 8051 kit and PC
15. Interfacing LCD to 8051
16. Interfacing Matrix/Keyboard to 8051
17. Data transfer from peripheral to memory through DMA controller 8237/8257

DIGITAL SIGNAL PROCESSING LAB

This laboratory is equipped with Texas manufactured DSP Starter kits with the core processor being TMS320C6713 and TMS 320C6748 and Code composer studio (full version). This lab exposes the aspects of Digital Signal Processing. Many of the algorithms and filter designing related to DSP are implemented in MATLAB software, Code Composer Studio ( Full Version) and using TMS320C6713 DSP processor.

List of Experiments

1. Generation of Sinusoidal Waveform / Signal based on Recursive Difference Equations
2. Histogram of White Gaussian Noise and Uniformly Distributed Noise.
3. To find DFT / IDFT of given DT Signal
4. To find Frequency Response of a given System given in Transfer Function/Differential equation form.
5. Obtain Fourier series coefficients by formula and using FET and compare for half sine wave.
6. Implementation of FFT of given Sequence
7. Determination of Power Spectrum of a given Signal(s).
8. Implementation of LP FIR Filter for a given Sequence/Signal.
9. Implementation of HP IIR Filter for a given Sequence/Signal
10. Generation of Narrow Band Signal through Filtering
11. Generation of DTMF Signals
12. Implementation of Decimation Process
13. Implementation of Interpolation Process
14. Implementation of I/D Sampling Rate Converters
15. Impulse Response of First order and Second Order Systems.

VLSI AND ECAD LAB

This lab deals with FPGA advantage software for Verilog implementation of digital circuits starting with basic gates to FSM models.  Download the programs on FPGA boards and performance testing is done using logic analyzer apart from verification by simulation using front end CAD tools (Xilinx Vivado 15.1). Second part of Lab has 17 Computers with following configurations including with UPS Facility:

1. Intel I3 Processors -4GB RAM, 500GB Hard Disk
2. Xilinx Vivado 15.1 Integrated Development Environment (IDE)

List of Experiments

Design and implementation of the following CMOS digital/analog circuits using Cadence /Mentor Graphics / Synopsys /Equivalent CAD tools. The design shall include Gate-level design, Transistor-level design, Hierarchical design, Verilog HDL/VHDL design, Logic synthesis, Simulation and verification, Scaling of CMOS Inverter for different technologies, study of secondary effects ( temperature, power supply and process corners), Circuit optimization with respect to area, performance and/or power, Layout, Extraction of parasitic and back annotation, modifications in circuit parameters and layout consumption, DC/transient analysis, Verification of layouts (DRC, LVS)

E-CAD programs:

Programming can be done using any complier. Down load the programs on FPGA/CPLD boards and performance testing may be done using pattern generator (32 channels) and logic analyzer apart from verification by simulation with any of the front end tools.

1. HDL code to realize all the logic gates
2. Design of 2-to-4 decoder
3. Design of 8-to-3 encoder (without and with priority)
4. Design of 8-to-1 multiplexer and 1-to-8 demultiplexer
5. Design of 4 bit binary to gray code converter
6. Design of 4 bit comparator
7. Design of Full adder using 3 modeling styles
8. Design of flip flops: SR, D, JK, T
9. Design of 4-bit binary, BCD counters ( synchronous/ asynchronous reset) or any sequence counter
10. Finite State Machine Design

VLSI programs:

Introduction to layout design rules. Layout, physical verification, placement & route for complex design, static timing analysis, IR drop analysis and crosstalk analysis of the following:

1. Basic logic gates
2. CMOS inverter
3. CMOS NOR/ NAND gates
4. CMOS XOR and MUX gates
5. Static / Dynamic logic circuit (register cell)
6. Latch
7. Pass transistor
8. Layout of any combinational circuit (complex CMOS logic gate).
9. Analog Circuit simulation (AC analysis) – CS & CD amplifier

MICROWAVE ENGINEERING LAB

This laboratory is well equipped with 10 Reflex Klystron test benches, 4 Gunn Oscillators test benches with different kinds of loads. It also consists of 9 VSWR meters, 12 CROs, one Digital storage CRO. Microwave antennas like Pyramidal horn, E-Plane and H-Plane sectoral horns and various microwave components are also available The lab has a number of digital communication trainer kits such as ASK, FSK, PSK, PCM and DPCM etc. The lab also consists of 30 MHz CROs, 4 Channel 60 MHz Digital storage oscilloscopes and 10MHz Function generators.

List of Experiments:

1. Reflex Klystron Characteristics
2. Gunn Diode Characteristics
3. Directional Coupler Characteristics
4. VSWR Measurement of Mached load
5. VSWR measurement of with open and short circuit loads 
6. Measurement of Waveguide Parameters
7. Measurement of Impedance of a given Load
8. Measurement of Scattering Parameters of a E plane Tee
9. Measurement of Scattering Parameters of a H plane Tee
10. Measurement of Scattering Parameters of a Magic Tee
11. Measurement of Scattering Parameters of a Circulator
12. Attenuation Measurement
13. Microwave Frequency Measurement
14. Antenna Pattern Measurements.

HIGH FREQUENCY STRUCTURE SIMULATOR LAB (HFSS LAB)

3D Electromagnetic Field Simulator for RF and Wireless Design

ANSYS HFSS is a 3D electromagnetic (EM) simulation software for designing and simulating high-frequency electronic products such as antennas, antenna arrays, RF or microwave components, high-speed interconnects, filters, connectors, IC packages and printed circuit boards. Engineers worldwide use ANSYS HFSS to design high-frequency, high-speed electronics found in communications systems, radar systems, advanced driver assistance systems (ADAS), satellites, internet-of-things (IoT) products and other high-speed RF and digital devices.

HFSS (High Frequency Structure Simulator) employs versatile solvers and an intuitive GUI to give you unparalleled performance plus deep insight into all your 3D EM problems. Through integration with ANSYS thermal, structural and fluid dynamics tools, HFSS provides a powerful and complete multiphysics analysis of electronic products, ensuring their thermal and structural reliability. HFSS is synonymous with gold standard accuracy and reliability for tackling 3D EM challenges by virtue of its automatic adaptive meshing technique and sophisticated solvers, which can be accelerated through high performance computing (HPC) technology.

The ANSYS HFSS simulation suite consists of a comprehensive set of solvers to address diverse electromagnetic problems ranging in detail and scale from passive IC components to extremely large-scale EM analyses such as automotive radar scenes for ADAS systems. Its reliable automatic adaptive mesh refinement lets you focus on the design instead of spending time determining and creating the best mesh. This automation and guaranteed accuracy differentiates HFSS from all other EM simulators, which require manual user control and multiple solutions to ensure that the generated mesh is suitable and accurate. With ANSYS HFSS, the physics defines the mesh rather than the mesh defining the physics.

ANSYS HFSS is the premier EM tool for R&D and virtual design prototyping. It reduces design cycle time and boosts your product’s reliability and performance. Beat the competition and capture your market with ANSYS HFSS.

ELECTRONIC HOBBY CENTRE: TECKTRONICS

Electronic Hobby centre was started in 2013 with the motto of encouraging true experimenting nature of engineering students. The hobby centre contains soldering kits, electronic components, testing and measuring equipment required for completing the hobby projects, mini projects, main projects etc.,

During free time any student / staff of any department can come to this centre for completing their projects. This centre is consistently supported by staff.