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 ...