Artist's impression of the European Space Agency's Biomass Earth Explorer satellite, with its 40-foot diameter radar antenna. Antennas are not usually the part of the spacecraft we talk about. It’s ...

When it comes to actual antennas in the real world, much of our knowledge is empirical. We know very broadly theories that explain how a point charge radiates (Maxwell’s equations), the need for ...

Combining gallium and indium, Dr. Michael Dickey, assistant professor of chemical and biomolecular engineering at NC State, has created a material that he is testing for an antenna that self-heals ...

If a device connects wirelessly to other things, chances are high that it has an antenna in it. But as crucial as these components are, the rigid metals they’re made of can limit what devices they can ...

To use a smaller antenna, we need a higher signal frequency, and that’s what we do when we apply modulation to the signal. Modulation is simply encoding the low frequency signal in the information of ...