These portable chargers and power banks give you the most boost when you're out of juice. I’m a Mobile Analyst at PCMag, which means I cover wireless phones, plans, tablets, ereaders ...

While all that cheap power can be good news for households and industries, it’s a serious concern for investors in renewable energy assets, as the volatility in prices is a threat to steady profits.

Abstract: In this study, a 12-way radial power divider at sub-THz frequencies has been presented. The radial divider is based on circularly polarized TE 11 (TECP 11) mode and features low insertion ...