Abstract: A circularly polarized (CP) patch antenna array with an oblique beam is proposed, which can effectively broaden the satelliteground communication link area as the satellite rotates ...
The circuit is a standard BEAM project built around a 74HC14, but [NanoRobotGeek] made a few changes to achieve the ideal chirp sound. As you can see in the video after the break, it chirps for ...
Abstract: Integrating narrowband Internet of things (NB-IoT) into low earth orbit (LEO ... This paper presents the preamble allocation and receiver design of beam domain random access for NB-IoT ...
Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University ...