Abstract: A frequency-reconfigurable spirograph planar monopole antenna (SPMA) operating in the ultrahigh frequency (UHF) band using RF p-i-n diodes is presented, including experimental verification.

Practical strategies for turning tutorials into active, inclusive learning spaces, from designing hands-on activities and valuing student contributions to building rapport and providing effective ...

Abstract: Reconfigurable Intelligent Surface (RIS) technology enables programmable wireless propagation through passive beamforming. However, large-scale implementations often incur excessive control ...

If you use these tutorials for your work, consider citing the corresponding paper: Dupré la Tour, T., Visconti di Oleggio Castello, M., & Gallant, J. L. (2025). The ...

Subscribe to our newsletter for the latest sci-tech news updates. Expanding shells of gas and dust that have been ejected from a star during the process of its evolution from a main sequence (MS) star ...

⚠️ This repository is archived: The content in this repository was moved to other locations. If you have issues or PR, please submit them to their new location. In this repository, we've put together ...

This article is brought to you by our exclusive subscriber partnership with our sister title USA Today, and has been written by our American colleagues. It does not necessarily reflect the view of The ...

Months ago, I observed a student drawing spiraling circles over and over on a sheet of notebook paper while participating in our class discussion. For some reason, I was reminded of an old toy my ...

Who else remembers Spirograph? When making elaborate spiral doodles, did you ever wish for a much, much bigger version? [Fortress Fine Woodworks] had that thought, and “slapped a router onto it” to ...

Thank you for signing up! Did you know with a Digital Subscription to Yorkshire Evening Post, you can get unlimited access to the website including our premium content, as well as benefiting from ...

Have you been left in awe by the stunning intricate designs created by a pen and gears by seemingly following the same pattern of movement over and over again? Did you wonder "How the heck is that ...

Robbie has been an avid gamer for well over 20 years. During that time, he's watched countless franchises rise and fall. He's a big RPG fan but dabbles in a little bit of everything. Writing about ...