When the summer heat feels unbearable, a good fan is a simple way to cool off fast. Amazon has a number of top-rated options ...

In this paper, we designed a broadband and wide-beam quadrifilar helix antenna (QHA). By loading a ceramic dielectric ring around the QHA, the beamwidth is sign ...

In order to continuously power movable sensors, we present an autotracking continuous-wave time reversal (TR) wireless power transfer (ACTR-WPT) system of a novel low-profile planar transmitter. The ...