Abstract: The construction of time-invariant spatial-focusing beampatterns (BPs) using frequency diverse arrays (FDAs) has received significant attention in recent years for secure communications.

President Trump wants the S.E.C. to reduce the frequency of corporate earnings reports. Our columnist says it’s a reasonable experiment, but at a dangerous time. By Jeff Sommer Jeff Sommer writes ...

VICTORIA — The British Columbia government says more than half of 20 communities surveyed saw an increase in homelessness since the last count in 2023. The Ministry of Housing and Municipal Affairs ...

WASHINGTON (AP) — Indiana Vassilev scored a goal in each half, Mikael Uhre and Milan Iloski each tallied three goal contributions, and the Philadelphia Union beat D.C. United 6-0 on a rainy Saturday ...

Abstract: A high-gain polarization-reconfigurable antenna array with switchable single and dual beams is proposed in this article. To realize the polarization-reconfigurable and beam-switching ...