Transcript Transmission Media, By- Prof. Vineeta Shakya

CORPORATE INSTITUTE OF SCIENCE & TECHNOLOGY, BHOPAL
DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGG.
Transmission Media
By- Vineeta Shakya
Transmission medium and physical layer
Classes of transmission media
Guided transmission media
Twisted-Pair Cable
Coaxial Cable
Fiber-Optic Cable
Twisted-pair cable
UTP and STP cables
Categories of unshielded twisted-pair cables
UTP connector
UTP performance
Coaxial cable
Categories of coaxial cables
BNC connectors
Coaxial cable performance
Fiber optics: Bending of light ray
Optical fiber
Propagation modes
Modes
Fiber types
Fiber construction
7.19
Fiber-optic cable connectors
Optical fiber performance
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
Fundamental of Electromagnetic (EM) Wave

Electromagnetic Waves

Electric and magnetic Field

Speed of propagation
Electromagnetic (EM) Wave
Electromagnetic Polarization
The polarization of a plane EM Wave is simply
the orientation of the electric field vector with
respect to the earth surface
Electromagnetic Polarization

Linear Polarization
a. Horizontal Polarization
b. Vertical Polarization

Circular Polarization

Elliptical Polarization
Horizontal Polarization
Vertical Polarization
Circular Polarization
Elliptical Polarization
Concept Of Rays And Wavefronts
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
Concept Of Rays And Wavefronts
Spherical Wavefronts
Spherical Wavefronts
Inverse Square Law
Wave Attenuation and Absorption
Propagation methods
Electromagnetic spectrum for wireless communication
Bands
Un-Guided Media (Wireless)
RADIO WAVES
MICRO WAVES
INFRARED
Wireless transmission waves
Radio Waves
Omni directional antenna
Micro waves
Unidirectional antennas
Infrared signal