Have you ever wondered how GPS antennas work? In particular, how do active GPS antennas get power down the same wire that they use to send signal to the receiver? Wonder not, because [Tom Verbeure ...

The tools mentioned here will make helical antennas a snap, but this isn’t the first time we’ve touched on the subject.

The antenna is just 24 x 24mm ... and has sufficient gain to make it powerful enough for normal use, while remaining safe for use right next to the body. Its ability to use dual-band Sub-6 ...

This is a home-made, extended-range RFID antenna made from cooking gas copper pipes in Professor Wool's lab. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases ...