Real-Time Spectrum Sniffer for Cognitive Radio Based on Rotman Lens Spectrum Decomposer [article]

Xiaoyi Wang, Alireza Akbarzadeh, Lianfeng Zou, Christophe Caloz
2018 arXiv   pre-print
We introduce the concept of a Rotman-lens spectrum decomposer (RLSD) real-time spectrum-sniffer (RTSS) for cognitive radio. Compared to a previously existing RTSS, the RLSD-RTSS offers the advantages of being 1) based an a simpler and lower-cost purely passive structure, 2) easier to design and easily amenable to tunability, 3) of much broader bandwidth, and 4) of accommodating more channels. The electrical size of the device is electrically larger, but perfectly acceptable in the
more » ... e frequency range. The proposed RLSD-RTSS is demonstrated theoretically and experimentally, and been shown to support tunability in terms of both bandwidth-resolution and operation band. Given its unique features, this device may find wide applications in 5G UHD and 3D video systems.
arXiv:1805.10700v1 fatcat:vn7clk4xyrbk5ecx3zlidxfmji