%0 Journal Article
%T Single-Step Tunable Group Delay Phaser for Real-Time Spectrum Sniffing
%A Tongfeng Guo
%A Qingfeng Zhang
%A Yifan Chen
%A Rui Wang
%A Christophe Caloz
%J Physics
%D 2015
%I arXiv
%X This paper presents a single-step tunable group delay phaser for spectrum sniffing. This device may be seen as a "time filter", where frequencies are suppressed by time separation rather than by spectral attenuation. Compared to its multiple-step counterpart, this phaser features higher processing resolution, greater simplicity, lower loss and better channel equalization, due to the smaller and channel-independent group delay swing. A three-channel example is provided for illustration.
%U http://arxiv.org/abs/1501.05750v1