A team from the Faculty of Physics and the Center for Quantum Optical Technologies at the University of Warsaw has developed a new type of all-optical radio receiver based on the fundamental ...

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.

Nearly 300 commenters have already flooded the FCC’s website since Chairman Brendan Carr asked for public input on ways to eliminate burdensome regulations. Experts say much of the FCC work will ...

HANOI, Vietnam — A bridge collapsed and a bus was swept away by flooding Monday as more rain fell on northern Vietnam from a former typhoon that has caused at least 59 deaths in the Southeast Asian ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. HANOI, Vietnam (AP) — At least 14 people ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. HONG KONG (AP) — A powerful typhoon made two ...

Abstract: A structure and power robust, circularly polarized (CP) stack Yagi antenna for radio frequency identification (RFID) reader application is proposed in this letter. To increase the bandwidth, ...

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.