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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Bibliographic Details
Published in:IEEE microwave and wireless components letters 2012-11, Vol.22 (11), p.601-603
Main Authors: Nikfal, B., Badiere, D., Repeta, M., Deforge, B., Gupta, S., Caloz, C.
Format: Article
Language:English
Subjects:
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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Description
Summary: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