hobby #13

Antenna Lobe Lanterns

I rotate a small antenna on a slow turntable, log the received signal strength through 360 degrees, convert the polar plot into a 3D-printed lantern, and photograph it glowing to show the radiation lobes.

The Antenna Finally Admitted It Had a Shape

The antenna rotates like it's auditioning for a lighthouse job. Eventually, it becomes one.

code-a-day tied to this hobby

Smoothing the Glow: Interpolating Antenna Patterns Linear Interpolation

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