answersLogoWhite

0

i am kuldeep b. shukla.this is my ans:

Comparison of Waveguide and Transmission Line Characteristics

Transmission line

• Two or more conductors

s eparated by some insulating

medium (two-wi r e, coaxi al ,

microstrip, etc.).

• Normal ope rating mode is the

TEM or quasi-TEM mode (can

support TE and TM modes but

the s e mode s a r e ty pic a l l y

undesirable).

• No cutoff frequency for the TEM

mode. Transmission lines can

transmit signals from DC up to

high frequency.

• Significant signal attenuation at

h i g h f re q u e n cies d u e t o

conductor and dielectric losses.

• Small cross-section transmission

lines (like coaxial cables) can

only transmit low power levels

due to the relatively high fields

concentrated at specific locations

within the device (field levels are

limited by dielectric breakdown).

• Large cross-section transmission

lines (like power transmission

lines) can transmit high power

levels.

Waveguide

1. Metal waveguides are typically

one enclosed conductor filled

with an insulating medium

(rectangular, circular) while a

dielectric waveguide consists of

multiple dielectrics.

2.Ope rating modes are TE or TM

modes (cannot support a TEM

mode).

3. Must operate the waveguide at a

frequency above the respective

TE or TM mode cutoff frequency

for that mode to propagate.

4. Lowe r signal attenuation a t high

frequencies than transmission

lines.

5. Metal waveguides can transmit

high powe r levels. The fields of

the propagating wave are spread

more uniformly over a larger

cross-se ctional area than the

small cross-section transmission

line.

6. L arg e cro ss-sectio n (lo w

f r e quency) wavegui de s a r e

impractical due to large size and

high cost.

User Avatar

Wiki User

13y ago

What else can I help you with?

Related Questions

How do you compare waveguides with transmission lines?

A transmission line is a structure that forms a path along which energy can be transmitted. Examples include metal wires and coaxial cables, striplines, and optical fibres A waveguide is simply a specific example of transmission line, most commonly used to mean a hollow metal tube along which electromagnetic (or acoustic) waves can travel - in this form they are most commonly used to transmit microwaves.


What type cable has the highest resistance to noise and carry a signal the longest distance?

The type of cable that enables the longest transmission with the lowest loss is called Goubau line, or G-line, for short. This line has far less loss than either coaxial cable or parallel line (twinlead). By using conical shaped "launchers", G-line creates a type of waveguide.


What is cutoff wave number?

The cutoff wave number is the maximum wave number that can propagate in a waveguide or transmission line without attenuation or loss. Waves with wave numbers higher than the cutoff wave number will be attenuated and cannot propagate effectively. It is an important parameter in the design and analysis of waveguides and transmission lines.


The span of transmission line between towers takes the form of?

a resistor


How do you fix transmission oil going into the engine in a 1994 Ford Ranger King Cab?

Check for a vacuum module on the transmission. If you see a vacuum line between the transmission and engine, disconnect the line and look for transmission fluid inside the line. If you see transmission fluid in the line, replace the vacuum module. It probably has a split or damaged diaphragm inside.


What is the essential difference between a transmission line and an ordinary network?

The essential difference between a transmission line and an ordinary network lies in their respective purposes and functions: Transmission Line: Purpose: A transmission line, in the context of telecommunications or electrical engineering, is primarily designed for the efficient long-distance transfer of signals, data, or electrical power from one point to another. Characteristics: Transmission lines are engineered to minimize signal loss, distortion, or power dissipation over extended distances. They often operate at high voltages or frequencies to maintain signal integrity.


What is the function of wires in transmission line?

Each of the three conductors of an electricity transmission system are termed 'line conductors', and there is a potential difference between each pair, called a 'line voltage'. The conductors themselves carry load currents called 'line currents'.


How do you change transmission line?

how to fix a transmission without taking it a part how to fix a transmission line


What is the difference between the transmission line and feeder?

Think of a river getting fed by streams and creeks. These feeders increase the water flowing in the river like electrical feeders increase the current in the transmission line.


Do you get DC current directly from the transmission line?

Only if it is a DC transmission line.


Is there one coolant line or two for the transmission on a 98 Mercury?

If this vehicle has a transmission cooler then it will have one line to the cooler then another for the return line to the transmission.


Standing waves present on an open transmission line?

Standing waves occur on an open transmission line when there is a mismatch between the line impedance and the load impedance. This causes some of the incident wave to reflect back along the line, interfering with the incident wave and creating areas of constructive and destructive interference known as nodes and antinodes. The presence of standing waves can lead to signal distortion and power losses in the transmission line.