Transmission Lines and EM Waves - Study24x7

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# Transmission Lines and EM Waves

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transmission line is a specialized cable or other structure designed to conduct alternating current of radio frequency, that is, currents with a frequency high enough that their wave nature must be taken into account. Transmission lines are used for purposes such as connecting radio transmitters and receivers with their antennas (they are then called feed lines or feeders), distributing cable television signals, trunklines routing calls between telephone switching centres, computer network connections and high speed computer data buses.

• Total 8 Modules
• 60 Videos
• Published on 29 June, 2019

## I-Introduction

• Introduction to EM waves and various techniques of communication

51m

## II-Transmission Lines

• Equations of Voltage and Current on TX line

54m
• Propagation constant, Characteristic impedance and reflection coefficient

52m
• Impedance Transformation

53m
• Loss-less and Low loss Transmission line and VSWR

52m
• Power transfer on TX line

52m
• Smith Chart

48m
• Admittance Smith Chart

54m
• Experimental setup for transmission line measurements

54m
• Applications of transmission lines

51m
• Applications of transmission lines-II

48m
• Impedance Matching?

55m
• Lossy Transmission Line

53m
• Problems on Transmission line

51m
• Types of transmission line

51m

## III-Maxwell's Equations

• Basics of Vectors

54m
• Vector calculus

54m
• Basic laws of Electromagnetics

52m
• Maxwell\\\'s Equations

54m
• Boundary conditions at Media Interface

57m

## IV-Uniform Plane Wave

• Uniform plane wave

50m
• Propagation of wave

50m
• Wave polarization

53m
• Pioncere\\\'s Sphere

53m
• Wave propagation in conducting medium

52m
• Wave propagation and phase velocity

49m
• Power flow and Poynting vector

53m
• Surface current and power loss in a conductor

55m

## V-Plane Wave at Media Interface

• Plane wave in arbitary direction

55m
• Plane wave at dielectric interface

54m
• Reflection and refraction at media interface

54m
• Total internal reflection

53m
• Polarization at media interface

54m
• Reflection from a conducting boundary

55m

## VI-Waveguides

• Parallel plane waveguide

55m
• Wave propagation in parallel plane waveguide

55m
• Analysis of waveguide general approach

52m
• Rectangular waveguide

52m
• Modal propagation in rectangular waveguide

53m
• Surface currents on the waveguide walls

52m
• Field visualization and Attenuation in waveguide

53m
• Attenuation in waveguide continued

52m

## VII-Antennas

56m
• Solution for potential function

56m
• Radiation form the Hertz dipole

52m
• Power radiated by hertz dipole

53m
• Thin linear antenna

55m
• Radiation Parameters of antenna

54m
• Receiving antenna

54m
• Monopole and Dipole antenna?

54m
• Fourier transform relation between current and radiation pattern

55m
• Antenna arrays

56m
• Uniform Linear array

56m
• Uniform Linear array continued

51m
• Synthesis of array

52m
• Binomial array and general array synthesis

53m

## VIII-Problems

• Problems on uniform plane wave

55m
• Problems on uniform plane wave in a meduim

52m
• Problems on waveguides

55m
• Problems on Antennas and radiation

50m

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