A dipole antenna is commonly used in radio and telecommunications. The antenna has two "poles," creating a radiation pattern similar to a donut shape. The antenna, a collaboration between engineers ...

For a quick example, a dipole antenna for the 20 m band will need around 10 m of wire, and the lower frequencies like 80 m need about four times as much linear space. But if you’re willing to ...

He claims it will noticeably improve both transmit and receive by making a quarter-wave monopole into a makeshift dipole antenna system. Per his instructions you basically add a short wire to the ...

NASA developed and tested a 3D-printed antenna to demonstrate a low-cost capability to communicate science data to Earth. The antenna, tested in flight using an atmospheric weather balloon, could open ...