Isolator (Basics, Working, Internal structure, S Matrix & Applications) Explained in Microwave
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- Опубликовано: 9 авг 2017
- Isolator in Microwave is explained with the following outlines:
0. Isolator
1. Isolator Basics
2. Isolator Internal Structure
3. Isolator Working
4. Isolator Applications
5. Isolator Scattering Matrix
6. Isolation factor of Isolator
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.
#Isolator #MicrowaveEngineering #EngineeringFunda 
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Your concept is good but in many cases you saying something and writing different
Please focus on what you are saying and what you are writing..
Thats too much confusing
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for forward transmission, the twister provides 45 degrees anti-clockwise shift while for reflected transmission, the same twister gets reversed and now provides 45 degrees clockwise shift. To understand just keep an analogue clock and see anti-clock from front and try realise the same anti-clock from its behind, you will find it as clockwise.
Yeah
okay, but how second twister (i.e. output side) is working for the 45 degrees clockwise for both? it seems anti-clock-wise if we give input at output side.
I watched many of your videos... All are awesome but, this one is not clear regarding the phase shift...i think you explained entirely different at different instances please make again sir.... Focus on your words as well as writing part
Yeah sure 👍
Made my mind go all complex. How is the 90 degree phase shift occurring.
same here
Yup same problem here too !
45° from twist which is at Port 1 and 45° due to ferrite rod which is situated at tthe centre
Sir you are Best
I am pursuing my engineering degree in EC
Because of you i passed my semester with very good grades
I learn Communication from you in 4th semester
Now, I learn Microwaves in 5th semester.
Please make more videos on all subjects
One humble request please make videos related to carrer in EC and what things, skills,internships we can do for better carrer in this field.
❤❤❤❤❤❤❤
I have already discussed in my live session, you can go through my channel for it.
Sir there are some mistakes but you are conveying in very easy language. Thank you sir
Sir You have made lives easier
I want to thank u for every video, ur unique way of coloring make us more interested thanks u so much...u save my engineering life sir, I wish to meet u my guru in my life once tysm dear sir...
God bless you... your welcome
Excellent work sir
you made this concept so easier thank you sir
Thanks and welcome
11:27 sir how its becoming 90 degree? if its mooved 45 in clock ans then 45 in anticlock then it should be zero right?
Sir your teaching methodology is so passionate... Being encouraged to read more and more now im love with microwave engineering... Thankyou for such wonderful videos
+Vishnu Priya : your welcome
Thanks a lot sir. You cleared many of my doubts.
Thankyou very much sir ♥♥
Your Appreciations, care and share matters a lot to me. #EnginneringLove.
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Excellent explanation 🙏🙏🙏
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simple and best explanation...
+Debadutta Rout : your wellcome
Sir, I think while going from input side due to the magnetic field the ferrite moves the vertical plane into clockwise, but while coming back the polarity of magnetic field changes so it moves the plane into the anticlockwise direction. See yourself if from opposite side CLock becomes anti and vice verse then while coming back both are again opposite to each other then both will change make the plane at its initial place only. Am I right?
In reverse direction first it shifts to 45 clockwise n then again 45 anti clockwise ..Then how can be 90 shift? It may be 0
+Vineeth Kumar : in reverse direction 45 clockwise is anticlockwise in actual. You can rotate your figure in clockwise and see it from back ... It is anticlockwise ... Hope got it
@@EngineeringFunda why we have to see from back sir? Why not front view..rather than we jst say its anticlock wise direction.. if we see in 1st case form back then it ll be wrong..
@@EngineeringFunda yep I too had same doubt. Now that u have explained it's crystal clear now!!! Thanks
@@EngineeringFunda SIR YOU should have mentioned from which end clock wise and anti clock wise rather than using the word "this " direction in your video , the rotation and from which side was the most important concept which you couldn't explain here at all, really disappointed . what you have mentioned in the video present in every other book , u missed out the main part !
Sir please explain about balanced duplexer as early as possible...
Mechanical twist 45 degree anticlockwise direction
Again ferrite rod rotated 45 degree clock wise .this clock wise rotation cancel the twist rotation.
We get only vertical.
We are giving vertical signal as input after a total 90 deg twist it should be horizontal output if u choose horizontal resistive card at output side then literally no output there, how u say vertical output?
Plzz make a video on tunable detector. Unable to understand this topic
Very Confusing shifting 45 degree anticlockwise then 45 degree clockwise it should be zero shift then ....it's confusing
Superb explanation.
+Ryd3r Ron : your welcome
Sir
i have gone the topic and i found the problem in clockwise and anti-clockwise rotation of vertical polarized signal when it passes through input to out or vice versa.Please clear sir.
Sir in orientation diagram when signal comes from output in resistance card there will 90 and 45degree phase shift you said sir how it can be done
See the complete explanation, I have explained that only.
In isolator u r not provided proper twist that is clock wise or anti clock wise
at 10:51 it makes a little confusion how it turn anti clockwise ,,,,, since we select vertical plane the wave should move up not down
+RABINDRA ROY :in forward direction it is clockwise and in opposite side it is anticlockwise
Sir you explain it well... sometimes you accidentally write wrong
Yes...you are absolutly right😂 pathak sir
Sir,Your videos are very useful and understandable... May I know the book you followed for MWE.
Soo many books, I have referred so can't find learning from 1 or 2 books
Engineering Funda ok sir, actually I want to buy one book,What about Microwave Engineering by Sanjeev gupta (or)microwave wave devices and circuits by Liao...which one is better..?
I prefer Leo for microwave devices and transmission line I prefer Kulkarni and Sanjiv Gupta. And both are my very good friends. Reviews of both books have been done by me. :)
Sir please upload cavity resonators and waveguide components and applications also
Everything is there in my playlist, just see it in my microwave playlist
Phase shift 2nd Wala anticlock wise ana chhiye that but apne clock wise KR Diya wo kese
Apne confuse krdiya pura ek bar anticlockwise bolte ho or krte clockwise ho or draw krte time anticlock wise krdiya kya sir ek chiz bolo
When it comes from output port the resistance card will absorve why sir
It absorbs horizontal polarization
nice Sir
+Padala Naidu your welcome
After 1st resistive card the vertical signals are twisted 45deg anticlockwise or clockwise?
They are not twisted after resistive card but the twister twists the signal in 45deg anticlockwise and the ferrite rod twists it by 45deg clockwise, a 1st resistive card just absorbs the horizontally polarized waves
If it is rotating by 90 degree then vertical polarized wave should be horizontal.How can it be remain as vertical polarized?
+KAUSHIK KUMAR DHANG : it is explained clearly in the video
If one is anticlokwise and other is clockwise adding the angle,then in reverse case also from port2 wave should reach to port1
+KAUSHIK KUMAR DHANG : in forward direction and reverse direction it will be with opposite rotation and you can clearly see how it happens
@@EngineeringFunda can you please explain again because it is very confusing...u said anticlockwise then u write clockwise...secondly it will be horizontal how can it be vertical....pls make another video to explain properly because not only one person is doubting on this there are number of people who are doubting
@@tig603 yes exactly...
Sir there is a confusion in the last step.
When we gave the input from the end Terminal after pasing from the resistance and feritz rod it turn clockwise 45* and after that when it come to the next 45* twist that twist is anti clockwise twist and i think it again go to the same position where it was initially. That is in vertical position.
Hence the inpout from end side will also came through the front side.
Actually if we see it mathematically throughout the opration there is a anti clockwise rotation and a clockwise wise rotetion hence they cancel each other and signal will flow as it is...
I have this confusion came , can you please explain me how 90⁰ come ?
1 to 2: 45 clock by twist + 45 anticlock by ferit rod = 0 degree.
2 to 1: 45 clock by ferit + 45 clock by twist = 90 degree.
It is based on directions.
Ferit characteristics is to rotate signal as per direction.
While physical twist is same in both directions.
@@EngineeringFunda ok , now it is possible , i think 2 to 1 when signal come then first it get 45⁰ clockwise and then the bent structure is working agan like 45⁰ clockwise.
The confusion will remove there only if you say that the bent structure work anticlock for 1 to 2 and clock for 2 to 1.
thanks
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when a signal is given at input sid first it rotates to anti-clockwise then o clockwise direction but when the input is given at output side first it rotates to anticlockwise then why again in an anticlockwise direction, it should be clockwise at 45-degree twist?? that is really confusing
You see anything which rotates clockwise is anticlockwise from other direction. So here it is clockwise from A to B and again it clockwise from B to A but from your end anticlockwise
But sir , from wherever we see , either from front or from back , if there is a system inbetween the line which have a property that it can +45⁰ and -45⁰ then after passing a signal irrespective of the side it will gave zero deflection. Exact here is the same case happening. So there is no defection from any side .
This is not an isolator it is the explanation of the gyrator pls note everyone
The answer is ferrite rod
what happen if we make a hole in rectangular waveguide.is there is a leakage.
+ranjan kumar : yeah leakage will be there and resonance frequency will change
at 12:18 you said resistive card absorbs only horizental polarised signal how it is absorbing vertically polarised signal
It depends on polarizer and resistive cards are available in microwave
where are the applications of the isolator?
Sir what are the application of Isolater?
It used to isolate sensitive devices for safety purpose
Nice concept video but too much ads
This adds are my motivation to work online.
First you say it rotates in 45° anti and nextly you say 45°clockwise....really confusing...
Clock wise in one direction looks anticlockwise from other direction
Ok assuming then also both will have 90 shift...according to u
N u must mention clockwise and anti clockwise... Saying another writing another.....
First 45 shift by magnetic field......45 shift by ferrite....
Tell properly....otherwise we have to make our own channel
Ur saying anticlockwise and rotaing clockwise...when telling about reverse path with last diag
When you see it from other side, it will looks with opposite rotation.
But is it not applicable for the ferrite rod?
Pls try to reduce adds bro
sir your explanation is good but the ads are annoying
+manogna sarvade : your welcome and sorry for inconvenience
is this topic for gate sir?
Nope, but you should know basics.
Few statements are very confusing...basically rotation part.
Biswajit Singh : it's perfectly fine dear
there is no clarity in your explanation, some times u said 45° twist will be in anti clock wise and sometimes u says it is close wise
VERITICAL
Everything were fine but directions were really confusing.
One Tym clockwise other time anticlockwise what is this .... stick to one concept ...
Isolator have no twist in it
please clear orientation at 3:37
Kiran Kumar it is pretty clear you can see it completely
Sir please explain the concept correctly!
Its not clear because basic concept is missing.
1st of all u need to know about faraday rotation law and why ferrite material is used
Concept confused
Cant understand
SIR YOU should have mentioned from which end clock wise and anti clock wise rather than using the word "this " direction in your video , the rotation and from which side was the most important concept which you couldn't explain here at all, really disappointed . what you have mentioned in the video is present in every other book , u missed out the main part !
jahan marzi clockwize rotation, jahan marzi anti clockwise..... totally confused me. Other videos are good, though!