Abstract: A 3-D wideband high-gain circularly polarized array antenna with low radar cross section (RCS) is presented in this letter. Its element contains four 3-D radiation structures fed by a ...

Abstract: Since it is difficult to obtain the number of sources accurately in practical situations, direction-of-arrival (DOA) estimation methods without the number of sources are very much needed for ...

As travelers across the U.S. brace for longer airport security lines amid a federal government shutdown, there are 18 airports where TSA isn't impacted because the airport uses private contractors ...

Fans of Sort Your Life Out were delighted this week then the show returned to screens with a new series, but now there's a way they can get even more from the much-loved programme. As viewers will ...