Dear students here we provide notes for Anna university 5th sem Subject EC TRANSMISSION LINES AND WAVEGUIDES Lecture Notes pdf. you can . ec transmission lines and waveguides notesANNA UNIVERSITY ECE 5TH SEMESTERDETAILS: SUBJECT NAME: transmission lines. Imp Ec – Transmission Lines and Waveguides – Free download as PDF File .pdf), Text File .txt) or read online for free.

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Explain about properties of smith chart? So as frequency changes the location of single stub will have to be changed.

ECTransmission lines and wave guides – Lecture Notes – Mohanavalli Edition

Derive the expression for the wave impedance in circular wave guide? Click here to sign up. If the transmission is not terminated in its characteristic impedance ,then there will be two waves traveling along the line which gives rise to standing waves having fixed maxima and fixed minima.

So for proper maximum power transfer, the impedances in the sending and receiving end are matched. Some of the higher order modes, having the same cut off frequencyare called degenerate modes. Hence TM01 and TM10 modes in a rectangular waveguide do not exist.

A line, which has neither frequency distortion nor phase distortion is called a distortion less line. Transverse magnetic TM wave is a wave in which the linrs field strength H is entirely transverse.


EC2305 Transmission Lines and Wave guides QUESTION PAPER

What is patch loading? Define Characteristic impedance Characteristic impedance is the impedance measured at the sending end of the line. What are the applications of the quarter—wave line? Explain in details about the reflection on a line not terminated in its characteristic impedance Z0?

Define Propagation constant Propagation constant is defined as the natural logarithm of the ratio of the sending end current or voltage to the receiving end current or transmisdion of the line.

Assume wavegiudes space within the cavity.

This requirement frequently calls for placement of the stub at an undesirable place from a mechanical view point. Determine the reflection coefficient. The possible TM modes in a circular waveguide are: The single stub matching system is based on the measurement of voltage minimum.

A line for which the effect of resistance R is completely neglected is called dissipationless line. The secondary constants of a line are: Explain impendence matching using stub.

An important application of the quarter wave matching sectionis to a couple a transmission line to a resistive load such as an antenna. The dominant mode of a circular resonator depends on the dimensions of the cavity.

EC Transmission Lines and Waveguides question bank download:Exams n Results

A short circuited stub is preferred to an open circuited stub because of greater ease in constructions and because of the yransmission to maintain high enough insulation resistance at the open. The dominant mode for TE waves in a circular waveguide is the TE11 because it has the root value of 1. An eighth wave line is used to transform any resistance to an impendence with a magnitude equal to Roof the line or to obtain a magnitude match between a resistance of any value and a source of Ro ecc2305 resistance.

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Parallel plate wave guide consists of two conducting sheets separated by a dielectric material. There are two types of cavity resonators. What are guided waves?

Derive the TM wave components in circular wave guides using Bessel functions? Give the input impedance of open and short circuited lines. What is lumped loading?

What are the applications of cavity resonators? Define wave impedance and write the expression for wave impedance of TE waves in rectangular guide.

Define propagation constant of a transmission line. What are the difficulties in single stub matching? What are standing waves? What is the use of a circle diagram? Derive the expression for the resonant frequency of the rectangular cavity resonator?

The presence of electric field gives rise to a capacitance value and the presence of magnetic field gives rise to a inductance value and the finite conductivity in the walls gives rise to loss along the walls giving rise to a resistance value.