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Prof. Nauta I did argue against your post on Linkedin. The current crop of available RFSOCs are highly limited to around 4 GSPS for I and Q. However There are ways to phase stagger ADC sampling clocks to achieve 16 GSPS. by placing the sampling edges at different points within a 360 degree space. TI has such a 4 ADC architecture . But entirely getting rid of LNA-Mixer will take at least 5-10 years,. The WiFi 7 support 320 MHz now. But cost is a huge huge factor for RFSOCs so to make a change to a 2nm process for volume FPGAs will take huge investments. Quantization noise for an ADC directly connected to the antenna is a related but different question. Its not an area many people deal with but the theory is there - Gray and Neuhoff.

I wish I can find the paper that describes this circuit in detail, including the positive feedback and stability concerns.

Great explanation! Thank you!

Thank you so much professor. This helped a lot. 😁

Hello professor Bram Nauta, it is also the high Current (in Power Electronics) that is an issue which is controlled by switches like IGBT (insulated gate bipolar transistor) in those applications. I have worked in Analog VLSI industry (mainly 65 nm, 45 nm CMOS transistors) and my observation is that the whole industry (in Cadence, Synopsys) tracks Voltage variations in very high detail, however we (Analog VLSI community) do not track the Current variations (in Cadence, Synopsys) in our work normally as well as the IEEE Power Electronics community for example.

Dear Professor, thank you for your video. Is it possible to create high order LP Filters using N-path technique?

I wish he had talked a bit about his technique in simple tetms for improving the linearity. anyway thank u for sharing this video

Thanks for sharing such a interesting idea, it was great, good luck 🍀

Thanks 👍

Thanks for the great explanation. But I have one question. Is the formula for Q at 12:18 in the middle of the video correct? My guess is that Q = pi*RCNf seems to be right because bandwidth is doubled.

Nice introduction, thx Professor!

Just a little taste of what EE is like! :D

Does this mean that only 4 branches of the N-path filter actually have to be implemented in order to use it for I-Q demodulation, regardless of the value of N? Very interesting.

Hi, How did you generate the 3D rendering of your layout??

it'd be nice if u add an English subtitle

The size comparison is not fair, since external components require a standardized package with a substantial footprint. Nice to see this development end up as configurable components in embedded microcontrollers, alongside ADCs, OpAmps and comparators.

Great video

very nicely explained ... waiting for new videos like this

just great, really good stuff here.

Very interesting explanation and demo. Thank you!

Excellent video. I thoroughly enjoyed the demo

Very good explanation, really enjoyed watching.

Hoi ik heb dezelfde naam als u

Perfect!

Nauta is great!

Brilliant. And with four 5G transmission cells in sync you can increase power output from 2Kw to 8Kw creating a very useful Kill Zone for the Nazi exterminators.

Brilliant idea with great explanation!

fantastic job!

How do you make a positive gm out of a negative gm?

Very helpful! Thank you so much!

Hi ! the software is amazing! Thanks for sharing. May i ask if is also possible to do cross sections ?

awesome

It was a wonderfull demonstration! Amazing!

can you please name the software you have used ?

Very nice video to start working on N-path filter. Thank you Professor!

"HI MY NAME IS NUMBNUTTS" Lol

Can this technology be used to harass and or, murder a person while in there home?

Can this technology be used to harass and or, murder a person while in there home?

That's great work. My question: What kind of delay elements are being used here? Are they active or passive (LC based). And where do you insert delay cells? RF path or LO path or digital baseband?

Thank you! My design looks fabulous in there! Took me a long time to set the layers :( but resulting images are cool! :) Kind regards from IC Design Group, Delft University of Technology

Didn't know about him :) Very interesting and motivating.

Can we expect English subtitles later?

Nice PVC pipe standards, great innovation :)

Thanks for your lecture at UT Dallas. That is really fantastic you cover that much in such a limited time.

Wat verwachten jullie van nieuwe studenten behalve wiskunde skills zoals algebra en calculus? Moeten nieuwe studenten al een achtergrond hebben in EE bijvoorbeeld?

Bravo for you - I would love to see this used with digital radio scanners which have a horrible time with multipath signals.

4:20, gaan jullie die settling time nog korter maken, anders ben je misschien toch transmissie data kwijt gedurende het (lange) settlen?

Thanks a lot for your clear explanation, now even I can understand what's happening! Compliments for your research!

GDS3D is now Open Source, so go and download it! sourceforge.net/projects/gds3d/

Hoi Hugo, Super gedaan en nu maar hopen dat het een groot succes wordt.