U.S. stealth aircraft like the F-35 Lightning II are often described as “invisible” to enemy radar, but that label ...

Abstract: To address the requirements of stealth platforms for low-profile antennas, this paper proposes an ultrathin low scattering circularly polarized (CP) slot array by integrating with a ...

Abstract: We investigate spectrum sensing in cognitive radios with large antenna arrays. Gigantic MIMO and extra-large array antennas are fundamental technologies in 5G and future 6G networks, as well ...

I was amazed when social media became a big thing. If I wanted to, I could communicate with people from around the world. However, social media was not a big deal for ham radio operators. They had ...