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  • October 22, 2023
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COMUNICATION LABORATORY

The communication lab is  pratical side applied the theory  to the study being considered by the  student  in the department of commuincation engineering  during  the  third and fourth  of the study where students learn the foundations of analogue and digital communications systems through the implementation of communication departments implication  analogue , digital and pulse  and how to calculate magintude of power  and  drawing waves entering and leaving each system values as well as how to convert from analogue to digital and conversely. Laboratry aims to prepare engineering staff specialized in the field of telecommunication engineering to keep pace with the rapid development in the field of telecommunication engineering. The implementation of the laboratory practical experiments using special specifications such as function generator  and osclliscope and voltmeter addition to private kate of the practical experment
 

 

Laboratory staff

  1. Dr. Riyadh Khalaf
  2. Asst.Lect. Haraa Raheem Hatem
  3. Asst.Lect. Huda Ibrahim Hamd
  4. Eng. Ilham Hameed Qaddori
  5. Eng. Ahrar Neahmah Mahmood
 

The Names of experiences

  1. Oscillator
  2. DSB-SC
  3. SSB-SC
  4. FM(Frequency Modulation)
  5. Demodulation FM
  6. A/D(Analogue to digital)
  7. D/A(Digital to analogue)
  8. ASK(Amplitude Shift Keying)
  9. FSK(Frequency Shift Keying)
  10. PWM(Pulse Width Modulation
 
Devices used in the lab
  1. Oscilloscope

Is an electronic measuring device allows to show and draw a reference volatge are usually bi-dimentional diagram of the electrical effort on the vertical axis versus time on the horizontal axis and has two entrances, which can draw a different two signals and either draws and only one of them on the display screen . it is one of the important devices used in study waveforms of the currents and the efforts and measuring values  addition to power and frequency.

2.Function generator(1)

It is an electronic circuit produces a temporary time signal and be shaped signal may be square or triangular or sinusoidal shape.

3.Spectrum analyzer

It is a device used to measure the value of the incoming signal with a frequency within the frequency device. Electrical signal incoming be analyzed to  frequency , capacity  and bandwidth . Representation of frequency signal on the horizontal axis versus amplitude on the vertical axis.

4.Function generator(2)

It is an electronic circuit produces a temporary time signal and be shaped signal may be square or triangular or sinusoidal shape.

5.Oscillator module 93001   

 

 

6.DSB-SC & SSB-SC module 93003

7.FM (frequency modulation ) module 93004

Microwave Laboratory

The student studies in the laboratory characteristics of electromagnetic waves within the microwave frequencies package, and they learn how to deal with the available microwave systems parts in the lab, which is equipped with laboratories section that keep pace with the movement of scientific development in the world. The student looked through laboratory tests to the equipment in the lab on a range of practical applications of microwave communications systems within. There are complementary devices to work and laboratory systems that help increase students’ understanding which devices are used in the process of standardization of telecommunications engineers.

 

Microwave Lab. Stuff

 Asst. Lect. Majeda H. Majeed

Asst. Lect. Israa H. Ali

 Eng. Ihsan Adnan

Name

Experiment No.

Gunn oscillator

1

E-Field prob.

2

Field distribution of horn antenna

3

Aperture antenna with measurement of gain

4

Interference and SWR

5

Reflection and transmission

6

Power measurement in X-band by direct way

7

Measurement of frequency in X-band by using wave meter

8

Q and bandwidth  of resonator cavity

9

Propagation modes, wavelength and phase velocity in waveguide

10

 

Devices in microwave Lab.

Equipment

Exp1

Exp2

Exp3

Exp4

Exp5

Exp6

Exp7

Exp8

Exp9

Exp10

Gunn oscillator    

*

*

*

*

*

*

*

*

*

*

pin diode

modulator

 

*

*

*

*

*

*

*

*

*

power supply and

signal source

*

*

*

*

*

*

*

*

*

*

Oscilloscope

(DUAL TRACE)

 

*

 

 

*

 

 

 

 

 

SWR meter

 

*

*

*

*

*

*

*

*

*

Frequency meter            

*

 

*

*

 

*

 

 

*

 

ThermocoupleMount power meter

*

*

 

*

*

 

 

 

 

 

Variable Attenuator  

*

*

*

*

*

*

*

*

*

*

Fixed Attenuator      

 

*

 

*

 

*

 

 

*

*

Directional coupler

 

 

 

 

*

 

 

*

*

*

Slotted line      

 

 

*

 

 

*

*

*

 

 

Slide screw tuner            

 

 

 

 

*

*

*

 

*

 

Crystal detector

 

*

*

*

*

 

 

*

*

*

 Matched

Terminator

 

 

 

 

*

*

*

*

*

*

Waveguide to

coax adapter

*

*

 

*

*

 

 

 

 

*

Hybrid- Tee

 

 

 

 

 

 

 

 

 

*

Reflector with

stand

 

 

*

 

 

 

 

 

 

 

Shorting Plate

 

 

*

 

 

*

*

*

*

*

Waveguide

straight section

 

 

 

*

 

 

 

 

 

 

 

DVM

*

 

 

 

 

 

 

 

 

 

 

 

1.Microwave power supply

The Gunn power supply has built in 1 KHz square waveform for modulating the PIN diode for detecting by SWR meter. 

2.Oscilloscope device

Oscilloscope is considered of the most important devices of the microwave signal in that it enables us to see the signals at multiple points of the circle and we can see the shape of the  signal and find out whether the shape sine or square or other. The shapes of the device can vary, but they all contain similar control keys.

Technical description of components in Microwave Lab.

 

3- Frequency meter

4- variable attenuator

5- slotted Line

Computing Laboratory

It is a laboratory of Computing scientific laboratory that helps the student to knowledge and modern scientific applications on computers through you know Computerized systems and software that can take advantage of them in all. Where stages of study are studied C ++ language and the language of Matlab and how to implement programs using rules of writing in program. Besides implementation Communications and control using Matlab program.

Stage

Subject

Supervisor

Administrator

First

computer

Dr. Suha Ibraheem

Ass. Lec.

Second

programming

Ass. Lec. Haraa Raheem

Ass.Lec. Jinan Nseif

 

Laboratory experiments (C ++ & Matlab)

Experiment Name

No. experiment

First course (MATLAB)

Introduction to Matlab (Matlab start + opening M-files + dealing with input and output)

1

Expressions used in MATLAB (numbers, variables, mathematical operations, functions and algebraic operations)

2

Vectors and matrices and solving equations

3

Flow Control

4

Graphics

5

Second course (C++)

Introduction and Definitions into C++

1

Statement

2

Conditional (Selection) Statement

3

Iteration (Repetition) statements

4

Array

5

Functions

6