1. Transmission Media CORPORATE INSTITUTE OF SCIENCE & TECHNOLOGY, BHOPAL DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGG. By- Vineeta Shakya

2. Transmission medium and physical layer

3. Classes of transmission media

4. Guided transmission media Twisted-Pair Cable Coaxial Cable Fiber-Optic Cable

5. Twisted-pair cable

6. UTP and STP cables

7. Categories of unshielded twisted-pair cables

8. UTP connector

9. UTP performance

10. Coaxial cable

11. Categories of coaxial cables

12. BNC connectors

13. Coaxial cable performance

14. Fiber optics: Bending of light ray

15. Optical fiber

16. Propagation modes

17. Modes

18. Fiber types

19. 7.19 Fiber construction

20. Fiber-optic cable connectors

21. Optical fiber performance

22. Wireless communication (Unguided Media) In wireless communication channel is nothing but the free space. the process of signal travel from transmitter to receiver can be divided in two parts: Radiation of the signal Propagation

23. Electromagnetic Waves Electric and magnetic Field Speed of propagation Fundamental of Electromagnetic (EM) Wave

24. Electromagnetic (EM) Wave

25. The polarization of a plane EM Wave is simply the orientation of the electric field vector with respect to the earth surface Electromagnetic Polarization

26. Linear Polarization a. Horizontal Polarization b. Vertical Polarization Circular Polarization Elliptical Polarization Electromagnetic Polarization

27. Horizontal Polarization

28. Vertical Polarization

29. Circular Polarization

30. Elliptical Polarization

31. As the EM Waves are invisible we have to analyze them with the help of indirect methods. This concept of rays and wavefront help as in analyzing EM Waves. Concept Of Rays And Wavefronts

34. Spherical Wavefronts

36. Inverse Square Law

37. Wave Attenuation and Absorption

38. Propagation methods

39. Electromagnetic spectrum for wireless communication

40. Band s

41. RADIO WAVES MICRO WAVES INFRARED Un-Guided Media (Wireless)

42. Wireless transmission waves

43. Radio Waves

44. Omni directional antenna

45. Micro waves

46. Unidirectional antennas

47. Infrared signal