Radio World

The Morse Code of Resistance

Alan Higbie signed up for the Army to avoid the infantry; he ended up talking to a revolution. It all started with a crystal ...

Scanning Ice for Monster Cracks, on This World and Another

Scientists are using radar to study damaged ice both in Antarctica and, with the help of a NASA spacecraft, on Jupiter’s ...
United States Army

U.S. Army Yuma Proving Ground's Instrumentation Division shows its stuff

U.S. Army Yuma Proving Ground (YPG) is at the forefront of Army transformation efforts.Conducting developmental testing of ...
IEEE

Ten-Mode Single-Fed Low-Profile Wideband Circularly-Polarized Metasurface Antenna using Dual-Mode-Aperture-Coupled Higher-Order Modes

Abstract: The bandwidth of low-profile circularly-polarized (CP) metasurface (MTS) antennas is often limited in the upper band margin due to gain degradation and distorted patterns resulting from ...
IEEE

Fault Diagnosis of Antenna Array via Phase Retrieval and Sparsity Promotion Using Phaseless Measurements

Abstract: A novel array antenna fault diagnosis method based on phase retrieval and sparsity promotion using phaseless measurements is proposed. This method significantly reduces the number of ...

I monitored my home with 3 handy tools to find its worst power hogs (and they're easy to use)

Using the ATX 9801 is easy -- plug one end into a mains outlet, and it acts like a short extension lead with a digital display. The socket on the front accepts pretty much every power plug worldwide, ...