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 ...
Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University ...
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 ...