qvhenkel

Aug 29, 2026

Jun 07, 2024

I've set up a simulation of a Rotman lens to drive a phased array in Elmer.

Nov 23, 2025

@QVHenkel Now do this in three dimensions.

Jun 08, 2024

@QVHenkel RF is nothing but black magic

Jun 08, 2024

@QVHenkel I had a feeling it was something like this but I didn't know that signals could propagate within a metal just like they would through air.

Jun 08, 2024

@QVHenkel How come the top 3 and bottom 3 don’t get lit up

Jun 08, 2024

@QVHenkel 🔥🔥

Jun 08, 2024

@QVHenkel how does one even design this

Jun 08, 2024

@QVHenkel Any chance that you would share the source .sif files?

Jun 08, 2024

@QVHenkel Great work ! Phased array are such a cool tech

Jun 07, 2024

@QVHenkel This is amazing!!! Ive done so much research on phased array radars at one point.

Jun 07, 2024

@QVHenkel https://x.com/9600/status/1798337999102705830?s=46

Jun 07, 2024

@QVHenkel Is there any good simulation SW for antennas available for free? Thanks.

Jun 07, 2024

@QVHenkel is it possible to create a lens by similar principle to create a wavefront shaped as if it originated from a location outside of the emitter array?

Jun 07, 2024

@QVHenkel THANK YOU! I've been reading and trying to intuit how they work since seeing the original "splat"

Jun 07, 2024

@QVHenkel Black magic…

Jun 07, 2024

@QVHenkel I don't know much abt RF design but why can't the output from the LNA produce the output from the lens, as it would lead to the same wave angle in the end...

Jun 07, 2024

@QVHenkel Some physics should be illegal actually

Jun 07, 2024

@QVHenkel Looking at RF circuits as a digital engineer makes no sense.

Jun 07, 2024

@QVHenkel I have no idea what any of this stuff means, but it looks cool, like a weird octopus splashing on a pond lol

Jun 07, 2024

@QVHenkel Cool! What software did you use for this simulation?

Jun 07, 2024

@QVHenkel Where did you get this geometry for the Rotman lens, and can I get it from you somehow (better than screenshotting, that is)? I want to run my own sim.

Jun 07, 2024

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qvhenkel

QVHenkel

I've set up a simulation of a Rotman lens to drive a phased array in Elmer.

@QVHenkel Now do this in three dimensions.

@QVHenkel RF is nothing but black magic

@QVHenkel I had a feeling it was something like this but I didn't know that signals could propagate within a metal just like they would through air.

@QVHenkel How come the top 3 and bottom 3 don’t get lit up

@QVHenkel 🔥🔥

@QVHenkel how does one even design this

@QVHenkel Any chance that you would share the source .sif files?

@QVHenkel Great work ! Phased array are such a cool tech

@QVHenkel This is amazing!!! Ive done so much research on phased array radars at one point.

@QVHenkel https://x.com/9600/status/1798337999102705830?s=46

@QVHenkel Is there any good simulation SW for antennas available for free? Thanks.

@QVHenkel is it possible to create a lens by similar principle to create a wavefront shaped as if it originated from a location outside of the emitter array?

@QVHenkel THANK YOU! I've been reading and trying to intuit how they work since seeing the original "splat"

@QVHenkel Black magic…

@QVHenkel I don't know much abt RF design but why can't the output from the LNA produce the output from the lens, as it would lead to the same wave angle in the end...

@QVHenkel Some physics should be illegal actually

@QVHenkel Looking at RF circuits as a digital engineer makes no sense.

@QVHenkel I have no idea what any of this stuff means, but it looks cool, like a weird octopus splashing on a pond lol

@QVHenkel Cool! What software did you use for this simulation?

@QVHenkel Where did you get this geometry for the Rotman lens, and can I get it from you somehow (better than screenshotting, that is)? I want to run my own sim.

@QVHenkel this clarified a lot, thanks