When you think of directional ham radio antennas, you probably think of a Yagi, cubical quad, or a log-periodic antenna. These antennas usually are in a horizontal configuration up on a high tower.

Abstract: This paper presents a large-bandwidth quasi-Yagi antenna configuration with multiple resonant frequencies for radio frequency energy harvesting. The overall size of the antenna is 105 mmx155 ...

When hurricanes flatten cell towers and floods submerge generators, the century-old technology of radio fills the silence and provides critical communication in the wake of disaster. Last weekend, the ...

Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I document my learning in order to be able to inspire other people to make ...

4-elements Yagi Antenna for 144.3 MHz - 12.5 Ohm design. Meant to be fed using a gamma match.

Modeling of a Uda Yagi type antenna operating at 2.4 Ghz with an input impedance of 50 ohms, using CST Studio Suite 2023 ...

When you think of directional ham radio antennas, you probably think of a Yagi, cubical quad, or a log-periodic antenna. These antennas usually are in a horizontal configuration up on a high tower.

Two years ago, in my home state of Kentucky, we had a devastating tornado that traveled nearly 200 miles, leveled towns, killed scores of people, and left widespread devastation. When emergency ...