In this work, a stacked ring spiral antenna has been proposed, the metallic ring is stacked behind the spiral antenna with the help of FR-4 substrate (dielectric constant=4.3 and loss tangent 0.025), ...

I don’t need yet another screen in my life. Or at least that’s what I have been telling myself for years. I used to believe ...

Upgraded ALMA images expose hidden rings and spirals around baby stars, indicating planets begin taking shape mere cosmic ...

In this captivating video, learn how to play with wire to create stunning spiral flowers and simple rings. Discover the art ...

The crystal beads are 2mm in diameter *** Don't be discouraged if you don't succeed the first time, with the new template, I ...