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 ...
Lockheed, RTX, Northrop added as prime contractors for command-and-control system Space-based interceptors pose scalability and affordability challenges Golden Dome envisions expanding ground‑based ...
Abstract: As sensor nodes that constitute a wireless sensor network are battery-powered, it is essential to extend their life. Wireless mesh network, one type of wireless sensor network, require ...