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Lukas Henkel

@QVHenkel • 24,599 subscribers

All things 3D | Rendering | Simulation | Electronics | StartUp | CEO engineering services company - views are my own

Shorts

It's mesmerising to look at. I did a simulation of this a while ago

It's mesmerising to look at. I did a simulation of this a while ago

353,990 次观看

The radiation pattern does not look pretty (yet) but it looks like using the speaker port as antenna might be feasible

The radiation pattern does not look pretty (yet) but it looks like using the speaker port as antenna might be feasible

99,881 次观看

I've set up a simulation of a Rotman lens to drive a phased array in Elmer. The matching of the ports is poor, causing lots of internal reflections, resulting in unwanted side lobes and poor channel separation. Nonetheless I think it still demonstrates the principle nicely 😊

I've set up a simulation of a Rotman lens to drive a phased array in Elmer. The matching of the ports is poor, causing lots of internal reflections, resulting in unwanted side lobes and poor channel separation. Nonetheless I think it still demonstrates the principle nicely 😊

967,485 次观看

In case you ever wanted to see a visualization of the field in a microstrip filter 😄

In case you ever wanted to see a visualization of the field in a microstrip filter 😄

96,127 次观看

the simulation shows the separate resonant modes of the dual band niche antenna on the CM4 module

the simulation shows the separate resonant modes of the dual band niche antenna on the CM4 module

137,808 次观看

Another look at the internal structure of the open-source smartwatch. In the slideshow the design looks deceptively simple considering the number of components in the watch 😅

Another look at the internal structure of the open-source smartwatch. In the slideshow the design looks deceptively simple considering the number of components in the watch 😅

39,719 次观看

I wanted to see where the hotspots in my ultrasonic cleaner are and which water levels to avoid to get the most even pressure distribution 😄

I wanted to see where the hotspots in my ultrasonic cleaner are and which water levels to avoid to get the most even pressure distribution 😄

46,569 次观看

A visualisation of different velocity factors in a PCB. Both simulations use the same excitation and port parameters. Only the permittivity is different, showing how the signal travels much faster in low Dk dielectrics. This simulation shows an embedded trace. A signal on an outer layer also travels faster because part of the EM field propagates through air, which has a Dk very close to 1

A visualisation of different velocity factors in a PCB. Both simulations use the same excitation and port parameters. Only the permittivity is different, showing how the signal travels much faster in low Dk dielectrics. This simulation shows an embedded trace. A signal on an outer layer also travels faster because part of the EM field propagates through air, which has a Dk very close to 1

35,256 次观看

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A different view with a surface between the ground plane and filter structure warped only by the Z component of the e-field to make the visualization a bit cleaner

A different view with a surface between the ground plane and filter structure warped only by the Z component of the e-field to make the visualization a bit cleaner

29,949 次观看 • 5 个月前

I´m experimenting with using ultrasonic surface waves on the trackpad of the laptop project to enable multi-touch haptic feedback. This should make it possible to generate haptic feedback under individual fingers for multi-touch gestures. Elmer FEM software is a really helpful tool to model the interface between the piezo elements and the coverglass as well as the wave propagation. Best of all it is open-source 😁

I´m experimenting with using ultrasonic surface waves on the trackpad of the laptop project to enable multi-touch haptic feedback. This should make it possible to generate haptic feedback under individual fingers for multi-touch gestures. Elmer FEM software is a really helpful tool to model the interface between the piezo elements and the coverglass as well as the wave propagation. Best of all it is open-source 😁

42,320 次观看 • 2 年前

Some chip manufacturers use selectively depopulated BGAs, but do not provide pin coordinates that can be conveniently imported. For such cases I like to use a transparent always-on-top overlay of the datasheet. It's worked great so far, but I'm still wondering if there's an easier way.

Some chip manufacturers use selectively depopulated BGAs, but do not provide pin coordinates that can be conveniently imported. For such cases I like to use a transparent always-on-top overlay of the datasheet. It's worked great so far, but I'm still wondering if there's an easier way.

19,319 次观看 • 1 年前

Running the Yocto image on the open-source PiMX8 module. The Piunora is a nice compact CM4 baseboard, quite handy for testing.

Running the Yocto image on the open-source PiMX8 module. The Piunora is a nice compact CM4 baseboard, quite handy for testing.

17,650 次观看 • 1 年前

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