Radiation (Antenna)

[@ankitfparmar]

u r the best... every other book creates confusion and eventually students lose interest... thnkuu so mch sir.. :)

[@apoorvasrivastava3150]

In my college days, these things were told by our professor and I was in love with the subject antenna but gradually the things faded and the confidence too....I started dreading the subject....I was searching vigorously for some source which can make me at least comfortable with the subject....BUT OMG this lecture has made me more informed than ever.....and I wanna express infinite gratitude to the professor for such a wonderful way of teaching, such deep insights and clear communication which make the whole series just PHENOMENAL!!!!! Thanks a lot Sir

[@drs.h.v.prasadarao3205]

Prof R.K.Shivagaonkar is an excellent professor.

[@kumudinisonawane6304]

Great explanation over the concepts! Made me learn faster because of the way of teaching. I watched all your videos related to antennas. Thank you so much sir.

[@drs.h.v.prasadarao3205]

Prof R.K.Shivagaonkar is an excellent professor. I listened his all transmission lines and E.M.waves lectures.His lectures God's gift to me.-SHV PRASADA RAO, Professor in ECE Dept, Pnc&vijai institute of engineering and technology, Guntur, Andhra Pradesh

[@tpmbe]

Thank you Professor, I found this lecture very enlightening on my journey of engineering knowledge...best wishes

[@drs.h.v.prasadarao3205]

Prof R.K.Shivagaonkar is an excellent professor. I listened his all transmission lines and E.M.waves lectures.His lectures God's gift to me.-SHV PRASADA RAO,

[@Being_anonumous]

these lectures are essentially the best on em waves over the net.

[@drs.h.v.prasadarao3205]

Prof R.K.Shivagaonkar is an excellent professor. His lectures God's gift to me.-SHV PRASADA RAO,

[@Prashantsingh896]

This is some genius level teaching from very first lecture.

[@drs.h.v.prasadarao3205]

Prof R.K.Shivagaonkar is an excellent professor. His lectures God's gift to me.

[@thehungrybloggerjg9806]

are you okay?... you already said that a multiple times....

[@gitikayadav5159]

So much informative lecture , everything is explained clearly!!

[@virendragupta6323]

great lecture sir, made the antenna topic easier to understand; specially its(antennas) dual behaviour thank you so much sir ;-)

[@chaitanya9032]

this much information in one hour lecture, superb

[@tpmbe]

The best explanations of EM and propagation are to be found here

[@jayagupta5002]

Thankyou so much sir for this vedio, you make it so easy to understand...

[@AnkitYadav-zg5zd]

At 20:44 if there is a matched load for the transmission line then how is the current standing wave forming as there is no reflection?

[@paulamiroy953]

Good question, I was also having the same question before but I think he was trying to say that if there is an open circuit (which he also draws and shows) then there would be current standing waves formed, because from open circuit ends there would be reflection. So if we slowly flare those open circuit ends, then the same current standing wave type distribution remains but now they do not cancel each other as they add up due to increased spatial difference between them.

[@RajWankhede]

please name this lecture as "ANTENNA". Awesome lecture. Thank you Sir. ;)

[@dkbose3650]

aweosome lecture it conent basic of radiation and i understand it very clearly

[@satyamnavtake4901]

great explained,it creates interest

[@satyanarayanakancharla4290]

Sir I have two questions 1)why moving charge produces em waves? 2)why electric field and magnetic fields are perpendicular to each other? Please clear my doubts

[@debmalyamitra353]

Revise maxwells Equations. Mainly the error that maxwell corrected in amperes law. The answer lies there I think

[@saketsourav31]

Very well explained sir. Thankyou

[@pranavckashyap3165]

great video indeed. thanks a lot sir.

[@srikanhramakrishna7964]

When the characteristic impedance of the line is matched to 377 ohms, why would there be standing waves?

[@SandeepYadav-hn1ei]

Same doubt

[@mahendargoud353]

we can see the powe transmissin lines carry accelerating currents does it means enery is wasting in the form of radition? please frends explain me..

[@prameelareddy5450]

Sir ....can a time varying voltage produce radiation like time varying current

[@rishikeshthakur7760]

How current will flow in open conductor

[@092070012]

Awesome lecture

[@MrDpk27]

a big thank you sir... :)

[@sana-ur-rahman1202]

awesome sir

[@mahendargoud353]

can some one explain y there is no radition in a ac currentconducter if it is placed nearto another conducter which always carry current oppisite to first cinducter

[@anand3906]

bcoz they cancel each other

[@mahendargoud353]

if we place two conductors parllely of which carrying ac currents. I guess radiation will spread cylindricalli in respective conductors. Being they placed near my guess is radiatin will get cancelk in between the conductors hoe ever there will be outer radiation exists of two conductors pleas clarify bro. And one as the proffeser said energy is wasted in the form of radition does it mean in transmission line also energy being wasted?

[@anand3906]

if current flow.. then it produces magnetic flux in a particular direction..apply rt hand screw. ...now if current is flowing in opposite direction...then their magnetic field will be opposite and they cancel each other if their spacing is very small

[@anand3906]

transmission line or waveguide mai radiation should be avoided. ...as this is wastage...bcoz our purpose is to transmit energy either in vi form or in the form of em wave to destination...but in the case of antenna... our purpose is radiation...

[@mahendargoud353]

Thanks bro now i got it one more can energy be wasted in ac transmisson line as raditaion

[@musabaslee8436]

Great

[@mahendargoud353]

its wonder a small free moving conducter made the world better

[@ankitmishra2723]

Thanks sir

[@mahendargoud353]

O my frends can some one explain y a charge creates magnetic feild when it starts moving please my frends explain it

[@abdelrahmangamalmahdy]

These are intrinsic physics laws (maxwell's equations). Whenever there is a current, it creates a magnetic field, and whenever a magnetic field changes, it creates electric field, and whenever an electric field changes, it then creates magnetic field once again! and the cycle goes on.. If you're looking for why that is, there's an explanation based on special relativity, explaining magnetic field as a "relativistic effect of electric field".

[@mahendargoud353]

Thanks i will look in to that

[@njutrinokey9591]

Great Teacher !!

[@प्रणव_गुप्ता]

Hii

[@drs.h.v.prasadarao3205]

Prof R.K.Shivagaonkar is an excellent professor. I listened his all transmission lines and E.M.waves lectures.His lectures God's gift to me.-SHV PRASADA RAO, Professor in ECE Dept, Pnc&vijai institute of engineering and technology, Guntur, Andhra Pradesh

[@mahendargoud353]

S.H.V. PRASADA RAO Sir garu charge move ithe dhani chutu magnetic feild create chestadi Please explain sir i am having so many douts.

[@drs.h.v.prasadarao3205]

Prof R.K.Shivagaonkar is an excellent professor.