Travelling Wave Tube (Basics, Operational Parameters, Structure, Working & applications) Explained
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- Опубликовано: 3 окт 2017
- Travelling wave tube is explained with the following points:
1. Basics of Travelling Wave Tube
2. Operational parameters of Travelling Wave Tube
3. Structure of Travelling Wave Tube
4. Working of Travelling Wave Tube
5. Applications of Travelling Wave Tube
Chapter-wise detailed Syllabus of the Microwave Engineering Course is as follows:
Chapter-1 Transmission Line in Microwave: • Transmission Line in M...
Advantages of Microwave, Basics of Transmission Line, Parameters of Transmission Line, Types of Transmission Line, Examples on Transmission Line, Transmission Line Parameters, Impedance matching of Transmission Line, Losses in Transmission Line, Parameters of Transmission Line {Propagation constant, Phase constant, Attenuation constant, Characteristics Impedance, Reflection Coefficient, Transmission Coefficient, VSWR, Input Impedance, Line Impedance}.
Chapter-2 Smith Chart: • Smith Chart in Microwa...
Basics of Smith Chart, Mathematics of Smith Chart, Examples on Smith Chart, Smith Chart Examples on {VSWR, Reflection Coefficient, Load Impedance, Input Impedance, Line Impedance, Vmax and Vmin location, Admittance, Parallel stub Impedance matching, Series stub Impedance matching}.
Chapter-3 Scattering Parameters/ S Parameters: • Scattering Parameters,...
Basics of Scattering parameters, Properties of Scattering parameters, Scattering parameters for two port network, Scattering parameters for four port network, Examples on Scattering parameters.
Chapter-4 Waveguides: • Waveguides in Microwav...
Basics of Waveguide, Parameters of Waveguide, Comparison of Waveguide and Transmission line, Why TEM Mode is not possible in rectangular Waveguide, Parallel plate waveguide, Rectangular Waveguide, Group velocity and phase velocity in rectangular Waveguide, Modes in Rectangular Waveguide, Degenerated Modes in Rectangular Waveguide, Dominant Modes if Waveguide, Cut off frequency in rectangular Waveguide, Circular Waveguide, Examples of circular Waveguide, Comparison of circular waveguide and rectangular waveguide, Examples on waveguide.
Chapter-5 Microwave Devices: • Microwave Devices
Isolator in Microwave, Circulator in Microwave, Examples on Circulator in Microwave, Directional Coupler in Microwave, Example of directional coupler in Microwave, Two holes directional coupler in Microwave, E plane Tee, H plane Tee, Magic Tee, Hybrid Ring or Rat Race coupler, Gyrator.
Chapter-6 Microwave Sources: • Microwave Sources
Reflex Klystron, Two cavity Klystron amplifier, Comparison of Reflex klystron and two cavity klystron, Magnetron Oscillator, Magnetron zero mode, Magnetron pi mode, Magnetron mode jumping, Magnetron strapping, Travelling wave tube, Backward wave oscillator, Parametric Amplifier, MASER - Microwave Amplification Stimulated Emission Radiation, Cavity Resonator, Limitations of conventional tubes over microwave tubes.
Chapter-7 Microwave Diodes: • Microwave Diodes
Schottky Diode, Gunn Diode, Varactor Diode, TRAPATT Diode, Tunnel Diode, IMPATT Diode, BARITT Diode, PIN Diode, Step recovery Diode.
Chapter-8 Microwave Applications: • Microwave Applications
EMI, EMC, Phase Shifter, Microwave Transistors.
Chapter-9 Microwave Measurement: • Microwave Measurement
Spectrum Analyzer, VNA Calibration, Network Analyzer.
Engineering Funda channel is all about Engineering and Technology. Here this video is a part of Microwave Engineering.
#TravellingWaveTube #MicrowaveEngineering #EngineeringFunda 
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I have worked with the TWT for 22 years , and built the cathodes which goes in the Electron gun for 14 years. The cathodes are impregnated with Barium & Strontium within a furnace at 1700 degrees. Then the Cathode is sputtered with Tungsten & Osmium. The cathode is brazed at 1980 degrees. The electrons are generated and omitted by the heater inside the cathode when powered . The electron beam is focused by the magnets on both sides. I worked in the UK.
can i get core ece job as a fresher
@@thedankboys8529 🤣
Uttarakhand ?
Series test 2
Well done✨️
Explained so nicely sir,thank u.
Really helpful video brother. Thanks a lot
Hey, wanted to say you thanks. You are very good at explaining.
You are amazing I use your video for my exam papers study and solve paper great😂😎
Excellent explaination!!
Thanks for uploading :)
Very well explained...thanks...
Easy to understand and started with basics and explained to the deep of the concept..Very useful !! Thank you for your efforts.😊
+joshna joe : your welcome
you r the best.....sir....
Your welcome
During positive half cycle when electron get accelerated, then how bunching will take place bcoz when the first electron get accelerated then it will move away from adjacent one so how bunch will form at the end. please make it clear..
thanx for your effort..
Awesome explanation sir
Helped a lot ❤️
Tonyram🤣🤣🤣tu bhi yahi se padha kya....🤣🤣🤣
Thank you sir .
+Yukta Patel : your welcome and Backward wave oscillator is even added
The use of Helix is not explained properly and also the movement of electrons in magnetic field is not explained properly ... Kindly add that in the explanation
thanks for explanation sir
Thank you so much
thank you very much
Great job sir..
+shailesh patil : your welcome
Good explanation, however, the bunching effect would be better explained using a reference electron out of the 3 electrons. Bunching is one of the most difficult concept to grasp in these tubes and oscillators.
If a same magnetic field is applying to ever three electrons than how will one is getting accelerated and one is getting retrated
Magnetic Field is applied across helix to narrow the beam such that electron beam travel through the centre of helix where magnetic field is maximum such that interaction between electron beam and RF siganl increases
Tnq sir
Nice explanation
Very easy to understand
thankuu so much sir🙏🙏😇
Your positive comments motivates me, Thanks and welcome 🙏
I think there's a slight mistake as You mentioned that in +ve Half Cycle there will be Accelerating Force and in -ve Half Cycle there will be Resistive Force, but this point is contradicting the one you mentioned in your other video of Two Cavity Klystron Amplifier, also with the above point mentioned it is not possible for the electrons to form a bunch at the output of the slow wave structure as the gap between early and late electrons will increase more instead of decreasing. Please reply if I am right and make the pinned comment suggesting the changes as it is creating a bit of confusion.
In two cavity klystron he marked early elctron in +ve half cycle ....
Sir can u explain about coupled cavity and Helix Twt in detail..
Every time you start getting things from the explanation...there's an advertisement to break the whole link...super irritated..we understand ads but these many...pls do something, sir. PLEASE!
get youtube premium, an ads free experience
Use youtube via PC or laptop and add youtube adblocker on chrome.i watch his all videos ad free
This is a great presentation just a suggestion pls don't use a yellow marker
+Vedant Khare : I will take care next time. But I am not artist so even I am learning ;)
Backchodi karega 😡😡padhna h padho nahi to niklo😡
How we extract RF output from bunched electrons?
You are not giving reason for bunching..as when accelerative force will occur..it will affect all three electrons then how the space in between them is reducing??
Please upload video of slow wave structures
thx
Negative half cycle me bhi distance jo hai woh same positive waali cycle ki trah close ho jyega ...kya horha hai????
@Engineering Funda
Very nice
Super sir.
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During positive half cycle when electron get accelerated, then how bunching will take place bcoz when the first electron get accelerated then it will move away from adjacent one so how bunch will form at the end
vishal poosarla same dought to me also
Helix is used to reduce the velocity of an electron so no electrons further move forward
this is because the RF signal gets amplified gradually along the coil. Therefore, as the amplitude increases, the distance between consecutive electrons decreases even more.
what happens is " we are getting some words to write in the exam".
This is not an explanation.
True
Sir will you add the tutorial of some control system syllabus that im going to add...
Complete control system is added in my channel
Speed of electron field in axial direction in helix , created by applied signal at helix is ???
Very good explanation, but about grid and collector 1 and 2 not explained. Please cover it in next video.
We will be updating this playlist in next 50days.
Keep it up
Sir is that helix twt and this explanation is the same......if not plz present a video...regarding that....and u did not explain about the two types helix twt and couple cavity twt..
thanks
Your welcome
Can v make vedio the mathematical analysis of twt
Rf is ac signal and helix is a single conductor. So how the rf wave travels through the helix?
Because of magnetic force, it happens
@@EngineeringFunda other wire is connected with antenna so the circuit is completed?
Nice explanation sir
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Your positive comments motivates me and person like me get boosted by my students feedback. Thanks and welcome 🙏
Explanation good and helpful but one thing some noise present in this video apart from that it's good
Thank you
Your welcome 🙏
Will you explain slow wave structure in detail???
despite of resistive force in the negative half cycle why the electrons are getting bunched? Kindly resolve the confusion
One video. thousand ads really
in this session are not explain the functioning of magnates
+ram raj : it is there to give magnetic force to electrons passing through coil
Make videos for helix twt and cross field amplifier
👍
Your welcome
Hi
What camera do u use...bro?
+Baggaraju Gnanaprakash : DSLR
nice explain
+Harpreet Singh : your welcome
explain the working of multi cavity klystron amplifier
TWT is all times preferred to magnetron for use in radar transmitter ..y?
This all is taken from Wikipedia.. See there first.. Same topic same lines.. I learned there first then came here... By the way TWT is multipurpose but specially for radar transmitter
Twt are generally at an advantage when low noise output and frequency variability are useful
what is the use of magnets that you have used ?
+KAUSHIK KUMAR DHANG : it is to give magnetic force
Sir what is the use of helix in it
+Vedant Khare : it is to generate magnetic field which will inserts magnetic force
Thank you sir
What is helix twt ? plz explain it
This is helix twt
sir plz make a video for circular wave guide
Sir please ugc net electronic science ke liye bhi video uplaod kr dijiye . microwave se related topic and antenna theory seebhi related. Thank u
+SHEFALI JAISWAL : I will be explaining antenna next year
What is the differentiation for negative half cycle and positive half cycle ...they are doing same job
polarity
@@anmolmadan24 thank you for your quick response bro
@@_A-jl6uv lol it ok
Make video on op amp plz
Cylindrical travelling wave lecture....
Good
+chetak pal : your welcome
The magnetic field is supposed to be axial(not off axis), so your diagram is a little off. I knew what you meant though.
Sir plz make a video of barit diode with deeply. Basic to high
+vivek madan : oh well I forget this diode. Thanks to remind me. I will make it by this week.
+vivek madan : now you can see that video in my playlist
Is there exist a accelerative force or retarding force in +ve half cycle
Sir please explain the topic in a clear step or points format so that students can write the points in their notes to read it easily for exams
Magnetic field kya kar rhi hai???
Outstanding sir
But sir their are some noise in background
+Sunny Sharma : thanks and your welcome and I will take care in next subjects
Respected Sir/madam ,there is some mistake in your explanation. 1)The velocity of early electron is higher than velocity of late electron. But you said inverse of it.
2) in applegate diagrams seq of electron is should be early, reference, late. But you take inverse of it.
Its perfectly correct here
Sir what is attenuator use?
+Vishnu Priya : it is to calibrate input so that signal doesn't exceeds threshold
Engineering Funda
Thank you sir
plz make videos in silent place there is a lot of background noises in your vdos
Noted dear
"slow-wheel structure"? "slow-wee-oo structure"? What?
I want to advance communication notes
At 8:37
Positive half m e- retard krga na k accelerate
Explain panna sonna padichitu irukan 😆
too many disturbing ads !!😓
Sir can you please explain what did u mean by "wire range of frequencies" ? You are a great teacher u cant be wrong so this has to mean something.
Y we r using attunator
jv ramana bcoz helix travels high RF signal gain so attenuator will attenuate or loss the resestive Ness and produces constant gain ..... without an attenuator the device goes to damage
Sir you're not writing correct spelling of sentences
Helix twt vedio
Helix twt video
Those are 14 electrons not 16
Sir
U r not explaining working of magnetron lecture properly ,kindly
Improve
I will definitely change it
Yep..electron isn't travelling through slow wave structure..RF signal do. There is some sort of confusion while explaining.
Yellow se mat app likha kro sir
Lots of ads
a bit confused
"maaaagnetic field" nice pronunciation
Concept thoda achee se smjhaya kijiye
Noted ✅
Half information
So much noise
+parasa praveena : kids were playing but still one can understands. :)
Watch the video in 1.25X playback speed....thank me later 😅
thnx 1.5x is sufficient
he repeats the same thing 1000 times