electromagnetics

Module 5

syllabus

Transmission line as circuit elements (L and C). Development of Smith chart - calculation of line impedance and VSWR using smith chart. The hollow rectangular wave guide -modes of propagation of wave-dominant mode, group velocity and phase velocity -derivation and simple problems only

Video Lectures

Smith Chart - Development | EM - Module - 5 | Lecture 68

Topic covered

Development of Smith Chart

Solved problem 1 - Smith Chart -step by step solution | EM - Module - 5 | Lecture 69

Topic covered

Q) A lossless transmission line with Z0 = 50Ω is 30m long and operates at 2MHz. The line is terminated with a load ZL= 60+j40 Ω . If u = 0.6c on the line find

Reflection coefficient

Standing wave ratio

Input impedance

Solved problem 2 - Smith Chart -step by step solution | EM - Module - 5 | Lecture 70

Topic covered

Q) The 0.1λ length line has a characteristic impedance of 50Ω and is terminated with a load impedance of ZL = 5 + j25Ω.

What is the impedance at l = 0.1λ?

What is the VSWR on the line?

What is Γ_L?

What is Γ at l = 0.1λ from the load?

Rectangular wave guide - filed relationship derivation | EM - Module - 5 | Lecture 71

Topic covered

Introduction to rectangular wave guide

Derivation of field components in rectangular wave guide

Relationship among the filed within the rectangular wave guide

Transverse Magnetic (TM) mode in Rectangular wave guide | EM - Module - 5 | Lecture 72

Topic covered

Derivation of TM mode in rectangular wave guide

TM mode equation using wave equation

power series solution of differential equation

Expression of attenuation constant (gama)

Expression of phase shift constant (beta)

Expression of cut off frequency

Expression of wavelength

Expression of velocity

Transverse Electric (TE) mode in Rectangular wave guide | EM - Module - 5 | Lecture 73

Topic covered

Derivation of TM mode in rectangular wave guide

TE mode equation using wave equation

TE10 mode