These days, when it comes to GPS devices the antenna is typically part of the package. But what better opportunity for [Pepijn] to learn how to make a GPS antenna from scratch for a badge add-on? A ...

No audio available for this content. Sea level changes are monitored using a VeraChoke antenna at a GNSS observing station in Canada. (Image: Natural Resources Canada) All antennas for global ...

I am not an engineer, but I will offer an answer below. Any of our readers are invited to provide further clarification. A circular-polarized antenna is used to read tags in random orientation. The ...

Polarization, as a primary physical quantity of light, is of great interest to almost all optical sciences and technologies. Along with linear polarization detection, circular polarization (or light ...