They’re easy enough to make for a radio amateur ... reflectors can be built in space, with easy folding and very little weight. The linked article describes the antenna as spherical and its ...

It’s thus worth putting in the effort to make a better antenna, and if you’re not fortunate enough to have a lot of space, your best choice may be a magnetic loop. [Robert Hart] takes us ...

Researchers at the U.S. Naval Research Laboratory have now decided to make the first attempt to test the viability of this technology by sending into space a special solar antenna with the secret ...