Horn antennas are a fairly simple affair, structurally speaking, with a straight-sided horn-shaped “cone” and a receptacle for standardized waveguide or with an appropriate feed, coaxial adapters.

The Adafruit Feather feed horn, pointed at downtown DC I live in a van down by the river in the middle of the woods, so testing the range of a WiFi connection or the gain of an antenna isn’t easy.

but it’s needed for mechanical strength UCB developed a 19-GHz CP horn antenna as the feed source for the previously discussed transmitarray (Fig. 3). Unlike an all-metal horn or a printed ...

The Horn Antenna was the instrument used by radio astronomers Arno Penzias and Robert Wilson that detected a background noise, later discovered to be caused by cosmic microwave background radiation.