What Are Phased Arrays?

[@rudylopez6546]

This was an EXCELLENT video! I am an antenna engineer and I wish I had seen this video back in graduate school. I couldn't visualize all the math back then but this video shows so much of the complex math in about 17 minutes. Well done sir.

[@meghjitmajumder3468]

Hello can I contact you? Actually currently I'm also working on Phased Array Antenna for Beamforming Application.

[@TechScottBrown]

This was excellent, I am an automotive technician that teaches ADAS operation, diagnostics and calibration. I appreciate this greatly.

[@xephyr417]

Brian! You are so loved by engineers everywhere. Thank you. If you're ever in Boston we'd love to have you come give a talk at our lab!

[@BrianBDouglas]

Just seeing that! Thanks for the comment and the offer. MathWorks is in Boston so I come out there about twice a year.

[@Dutta1605]

So far the best video about Phased Array Antenna. I wish I could have discovered it earlier. I always struggle to visualize antenna or radar related topics from theory. Thanks a lot for this series of video.

[@BrianBDouglas]

Thanks for the nice comment!

[@Debraj1978]

Brian video = watch irrespective of the topic/ subject. There will always be somthing to learn.

[@Dat-glyong]

Thank you for making such videos! It is very helpful to understand how phased array, or AESA works.

[@FA18_Driver]

You’re a good teacher sir.

[@madhusudhantm5806]

very well explained sir. Complex maths explained through Visualization is what a student needs Thank you

[@zoppp621]

Love Brian's videos. inspired me to become a controls engineer

[@MirusWoozy]

Brian, it would be really nice to move to your house for a few months and talk about control theory all day, every single day. But I have a family and I can't :(

[@BrianBDouglas]

It’s a deal as long as you help with chores!

[@MirusWoozy]

@@BrianBDouglas We have a deal! Time to say goodbye to my wife and children. I just need to estimate their reactions and try to control its. I hope I can actuate my plan(t). See you soon Brian!

[@giango1650]

It's simply excellent video, thank you so much for making this video!!!

[@BrianBDouglas]

🤗

[@ahmedkamel4992]

wow, what a great video and clear explanation ! Thank you !

[@PiotrSankiewicz-bs5er]

This is a great video! I will share this video with my team.

[@nuwantattygalle5645]

12:09 could someone please explain Sinc element pattern?

[@bayestraat]

2:09 *steering of the beam is done digitally*

[@bocckoka]

The dark lines is where the signal has a high negative absolute value. The signal is low (near zero) between the white and dark strips.

[@jamesraymond1158]

Amazing graphics. During transmission, is the same amount of electrical power sent to each antenna in the array? How much power? 1 mW/antenna?

[@pencil792]

@ Brian Douglas, কত দিন পরে এলে গো বন্ধু । 🥰🥰😍😍

[@tourdhorizon97]

Who is watching this for fun😂

[@sophia-helenemeesdetricht1957]

Me

[@xs1l3n7x]

me

[@andreykirchev32]

Only electrical engineers!

[@naveen1867]

Which software did you use to create the radiation pattern?

[@GeorgeWashingtonLaserMusket]

I work in IT and learned about beam forming thanks to "newer" wifi tech a number of years ago (I believe Either WiFi N or AC introduced it). Eventually wanted to make an EMP device (as kids are want to do) that was directional, learned a little more about radios and realized I do not have the resources lol ($$$). Not to mention the legal issues, I'm sure the FCC wouldn't take kindly to that. As an adult I've recently regained my interest in radio, less for "dumb teenager stuff" and more for HAM Radio, Medium/short range unlicensed microwave stuff, and now I'm thinking radar might be cool and potentially useful. I wonder if there is a way to combine a HAM license with DIY radar to be allowed to build something "more useful". Say you want to know if someone is flying a drone over your home/property and it's anywhere from a quarter acre to a hundred acre plot. I wonder where the legal limits are, guess I've got some googling to do lol. Then I can decide if learning that black magic is a reasonable use of time as a hobby. Although realistically I'd probably never build it for fear of angering the federal government and it's various unknowable regulations (I'm looking at you FCC).

[@milesbridges3547]

How can the context of forming a beam and moving the beam around be extended to microphones that are recording sound?

[@tombouie]

Well-Communicated & I ate it up with a spoon ;)

[@slamin2095]

can you elaborate on the difference in an optical phased array?

[@ernstuzhansky]

Cool video. Thanks!

[@steubens7]

does all of this still hold if i'm sampling each element one by one? fast, but never at the same time. i'm thinking it might shift the peak around, but what i'd really like to know is if it would work at all. assuming it would, does trying to compensate for the "missing" samples make it worse? on an 8 channel system, one of them is always 7 samples "behind".does sampling them in a random order help or hurt? large microphone arrays are terribly expensive, i've had "make a crap one and see how bad it is" in my todo list for years but i keep imagining things that would make it not work at the price i need the hack to be in. (the pio in the pico made using digital microphones on a large scale easy, i'd expect them to tap out at like 18 microphones per pico, but i'm just guessing)

[@BrianBDouglas]

Yep, that time delay would shift the peak around. Here's an audio example that uses time delay to shift the beam: www.mathworks.com/help/phased/ug/acoustic-beamforming-using-a-microphone-array.html#MicrophoneBeamformerExample-3

[@burneternally]

I am a boots on the ground telecom tech, only trained on install/maintenance of the equipment and safety. It sounds like isotropic antenna=omnidirectional antenna?

[@JohnSmith-kr3du]

What kind of amp or work station do i need?

[@James_Knott]

It's often said an isotropic antenna radiates equally poorly in all directions! 🙂

[@VikramReddyAnapana]

Great insights, thank you.

[@Rahul345-t6k]

Well xplained

[@Trucam2020]

Excellent video ☺️

[@AviaGaming123]

nice explanation 😀

[@A00700]

Hello sir, how to provide unequal distance between antenna elements? Like, its not always 0.5 lambda between all the elements?

[@BrianBDouglas]

In the sensor array analyzer app? If so, then instead of choosing uniform linear array, choose the arbitrary array and set your elements with any spacing.

[@ARJ0711]

wonderful👍👍👍

[@BrianBDouglas]

Thanks!

[@atulnishant1366]

Starlink use this technology for strong signal catching 😊

[@dr.merlot1532]

What is the complexity of the Hadamard Product of two matrices? Is it O(1)? I NEED TO KNOW!!! IS IT POSSIBLE TO MAKE THE HADAMARD PRODUCT OF TWO MATRICES FASTER!!!

[@djwebbywebby]

With a line array you see a 2d waveform, with a square of array you se a 3d waveform, with a cube of array?

[@BrianBDouglas]

🤯

[@insyogurtdc1553]

Vivid explanation

[@kerron_]

very cool

[@alessandrolima4266]

amazing

[@totolovesunsun]

that is so awesome

[@shaider1982]

PESA radar?

[@happyfox711]

Let's say I had 5 to 40 thousand transducers in orbit. What's my capabilities? 😂

[@대머리신-p9m]

14:25 ㄷㄷ

[@AntonioDellaRovere]

@bitluni ..dachte koennte fuer dich interessant sein ;)

[@nickpenacl]

shut up and take my money

[@brambob9510]

Tnx . Now jina and the orks will steal our tec. Lol thats just what they do. Hahahahahahahah

[@대머리신-p9m]

14:25 ㄷㄷ