Distortion-Less Real-Time Spectrum Sniffing Based on a Stepped Group-Delay Phaser

The concept of real-time spectrum sniffing - featuring a simple and low-cost circuit architecture with straightforward frequency scalability - is introduced for cognitive radio systems. A stepped group-delay phaser is proposed and demonstrated to eliminate the issue of frequency resolution limitatio...

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Veröffentlicht in:	IEEE microwave and wireless components letters 2012-11, Vol.22 (11), p.601-603
Hauptverfasser:	Nikfal, B., Badiere, D., Repeta, M., Deforge, B., Gupta, S., Caloz, C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Bandwidth Broadband antennas Circuits Cognitive radio Delay Dispersion Dispersions Dispersive delay structures Distortion Exact sciences and technology frequency discrimination Microwaves phaser Radiocommunication specific techniques Radiocommunications Real time Real-time systems short-range communications spectrum sniffing Spreading Stepped Telecommunications Telecommunications and information theory
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Beschreibung
Zusammenfassung:	The concept of real-time spectrum sniffing - featuring a simple and low-cost circuit architecture with straightforward frequency scalability - is introduced for cognitive radio systems. A stepped group-delay phaser is proposed and demonstrated to eliminate the issue of frequency resolution limitation due to the dispersion spreading induced by conventional phasers.
ISSN:	1531-1309 2771-957X 1558-1764 2771-9588
DOI:	10.1109/LMWC.2012.2219514