How Microwave Lenses REALLY Work!

Refraction, Focusing and Magnification are usually explained because light "slows down" in transparent materials. But DOES it? 3D-printed Microwave Dielectric Lenses are transforming how RF Engineers think about focusing Microwave and mmWave energy. Additive machining has changed the design process forever.
As well as being an amazing application of 3D printing, dielectric materials are fascinating in their own right, so the detail at the molecular level is completely general and applies to any material at radio frequencies and into the far infra-red.
This video doesn't use the complex jargon of the original video. The only thing I've held back on is the equations and the detail of the quantum-mechanical processes involved, but I'll probably put that on my second channel ‪@MachiningandMicrowavesPlus‬ along with the piece I was going to include about the weird dielectric behaviour of water with RF fields.
Commercial enquiries about Radix™ 3D printable material: landing.rogerscorp.com/5/Radi...
Fortify, Rogers' 3D printing partner, are at 3dfortify.com/3d-printed-rf-d...
Check out MAGTREX 555 as well, it's another amazing material from Rogers Corporation www.rogerscorp.com/advanced-e...
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MS Lattice download: github.com/MSLattice/MSLattic...
Simple optics bench program: phydemo.app/ray-optics/simula...
Searchlight image: Royal Air Force official photographer, Miller (P/O), Public domain, via Wikimedia Commons
Blackbuck hunt image Unknown artist, Public domain, via Wikimedia Commons c 1775
Ibn Sahl (Abu Sa`d al-`Ala' ibn Sahl) (c. 940-1000), Public domain, via Wikimedia Commons
Bag X-Ray: IDuke, CC BY 2.5 creativecommons.org/licenses/..., via Wikimedia Commons
Spongebob image from wikipedia/en/thumb/3/3b/SpongeBob_SquarePants_character.svg
Butterfly: Inorganic chiral 3-D photonic crystals with bicontinuous gyroid structure replicated from butterfly wing scales. Christian Mille, Eric C. Tyrodec and Robert W. Corkery
Molview: molview.org/?smiles=C(F)(F)(C...[H])(F)C(F)(F)F
Sapphire ring: geogallery.si.edu/10002687/lo...
Spring animation: AlvaroLopez12, CC BY-SA 4.0 creativecommons.org/licenses/..., via Wikimedia Commons