Speaking of reflectors and directors, some readers might already have an idea.
That's right.
It's the Yagi antenna!
Friends who were born in the 80s or 90s, whether single or not, might have a slight impression of a certain device:
It's a fishbone-shaped device.
It looks like a clothes hanger, and a sturdy one can actually be used as a clothes hanger.
It's mainly set up on rooftops for receiving television signals.
This antenna is the Yagi antenna.
It is a standard end-fired antenna composed of an active element, a passive reflector, and several passive directors.
However, the name Yagi does not mean it consists of eight antennas.
It is named after its inventor, Yagi Hideji:
This antenna was developed by Yagi Hideji and his student Ueda Tarō.
Therefore, the full name is also called the Yagi-Ueda antenna.
Yagi Hideji.
You can tell his ethnicity just from his name.
He was born in 1881 and passed away in 1976.
