What is Beamforming? ('the best explanation I’ve ever heard')

Explains how a beam is formed by adding delays to antenna elements.

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[ainguyensy]

That's exactly "the best explanation I've ever heard". Thank you sir!

[bobbaberson]

Dear Iain, these are all amazing videos. It is really tough to condense such complex material into short videos but maintain understandability of the it. This is really appreciated.
You mentioned radar a couple of times. Do you have any plans to make a basic lecture on that? Maybe just simple doppler/ToF/AoA extraction or maybe something on MUSIC algorithm. I have been searching for a while for a decent explanation of MUSIC but it is hard to find one.

[wunxue]

This explain is intuitive and clear. Excellent job.

[adarshiyer]

I haven't seen a better explanation for this.. hats off sir

[LTEVideoTutorials]

I watched many videos on this topic, but only this video made me visualise the beam forming. Thanks for making such a complicated topic so easy :)

[pinecne]

I had so many "aha!" moments during this video that I ended up liking it multiple times, from going to click the "Like" button, forgetting that I had already liked the video just a few minutes before. Great explanation!

[havinganap]

Excellent. The idea of starting with the recieve case is genius!

[sivasenthilkumaranmuthusam]

One of the best explanations of beam forming ..

[ibrahimbaras]

awesome explanation, I thought at the begneinggg how hw said best explanation, but he worth the name love the material Mr.Iain

[pk]

Thanks Mr. Iain for explaining in such an easy way the Beamforming.

[SeanAM]

It's just awesome! Didn't know there is a similar beamforming effect in the receiving end as there is in the transmitting side.

[MGTOW-nnls]

Dear Sir your videos are brilliant. Your explanations very clear .Thank you for sharing your knowledge

[antonabik]

Best beamforming explanation I have seen.

[ankitbhanu]

Such a simple yet clear explanation, which even hour long fancy videos are unable to provide

[carmelpule]

What is never mentioned in antenna radiation is whether or not the E/M loops being radiated do break down into loops of half wavelength as the loop try to grow in size with distance, In waveguides and cavity resonators it is common to show the stacking of " half wavelength E/M blocks to fit in the available space. A one megacycle wave, has a much larger loop than a 5 GigaHertz signal and though everyone talks about lobes, and directivity, and efficiency, and so on, no one talks about the "stacking of E/M blocks" the size of which depends on the frequency of transmission. So for a given frequency, how many stacked E/M loops exist in it as the wave moves out? I have thought about this for the last 80 years and it seems to me that when one has a directional antenna, or a phased array, all that is happening the system is cutting off and eliminating the peripheral blocks in the stack of E/M blocks in the lobe or in any omnidirectional antenna,
I simulated this with a computer algorithm which, when the circumference ( wavefront) of the wave grew larger than a wavelength integers, then the " circumference would accommodate another loop half a wavelength long".
The simulation works beautifully and the patterns that emerge make it so obvious, after I saw it, From a central location of the antenna, after the wave settles down, the patterns seems to change from a "polar diagram" to a cartesian diagram where the four symmetrical squares of cartesian coordinates, simultaneously move out their four quarters containing the same pattern of E/M loops as exist in rectangular waveguides contain the higher modes. When I plotted the B and the E field loops far from the antenna they came out to be exactly as occurs in rectangular waveguides with the B loops as normal, and the E loops are exactly the same as the E in the waveguide and the surface currents in a waveguide, It is exactly the same pattern,
So it seems, that a centrally placed antenna as a source, will have the near E/M fields going through "a pushy transient pattern" then "a middle field pattern" which I call the settling down zone, and then the far field would resemble the pattern obtained in a rectangular waveguide excited with an electric probe or a magnetic probe as one desires. It is fascination to see the four quarters of cartesian coordinates moving out with additional loops being added as the distance increases, It is remarkable,

[fnegnilr]

Great explanation! You just picked up another subscriber....

[bennash]

So when the signal is cancelled out on the incoming transmission.. what happens to it...? Just got a bit confused at this point? How is a beam formed if it's cancelled out? Or... Have I misinterpreted what you have said?

[ayushidube]

Very illustrative and logical thank you 😊

[robertocabiecesdiaz]

I am trying to understand the MUSIC algorithm. Any link to easily understand it?

[franzMTB]

Beam forming technique is only used into half duplex system?