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Multi‐functional channel selective RF receiver system for low‐power sensor network applications
Author(s) -
Lee KyoungJoo,
Lee Heejong,
Kim YoungSik,
Lim Jongsik,
Han SangMin
Publication year - 2012
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.26699
Subject(s) - rf front end , electronic engineering , radio frequency , microwave , radio receiver design , channel (broadcasting) , electrical engineering , engineering , computer science , telecommunications , transmitter
Abstract A novel multifunctional channel selective RF receiver system architecture is proposed for low‐power sensor networks. The proposed system can recognize received radio channels at an RF front‐end process by a frequency‐to‐voltage conversion technique. Moreover, the dual system‐functionalities can be performed from a common detection circuit for the spectrum sensing and digital data recovery, simultaneously. The multifunctional system has been designed and implemented for the performance evaluations. From the experimental results, the on‐off keying modulated RF signal with 50 kHz data rate has been sensed at a carrier frequency of 2.4 GHz with an excellent resolution. Thanks to the simply architecture, it is expected to contribute to efficient sensor receiver design technologies such as small form‐factor, high‐speed sensing, low‐power, and multifunctionality. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:847–851, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26699