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dc.contributor.authorSrivastava, A.-
dc.contributor.authorDas, D.-
dc.contributor.authorBaghini, M.S.-
dc.date.accessioned2022-08-26T14:48:15Z-
dc.date.available2022-08-26T14:48:15Z-
dc.date.issued2022-08-26-
dc.identifier.urihttp://localhost:8080/xmlui/handle/123456789/3921-
dc.description.abstractIncreasing demands of wearable health monitoring seek dedicated spectrum for short range wireless communication of biosignals, for which frequency band near 400 MHz has been utilized recently. While using the dedicated spectrum, biosignal communication must not cause any out of band radiations and interference, for which there is a strong need to develop spur-free, low phase noise and energy efficient wireless transmitters (TX). In this research, for the first time we present design and implementation of a reference-spur-free, low phase noise, sub-mW dual modulation mode (frequency shift keying (FSK) and on-off keying (OOK)) 400 MHz TX for wearable health monitoring, where RF synthesis depends solely on an extremely low phase noise oscillator, which uses a 400 MHz surface acoustic wave resonator and does not include any power hungry, spur-generating frequency multiplier or phase/frequency lock loop. The proposed TX has been designed and fabricated in 180 nm CMOS technology. Measurement results show that the energy efficiencies of the proposed TX in FSK and OOK mode are 1.8 nJ/bit at 250 kb/s and 0.23 nJ/bit at 2 Mb/s, respectively. To prove the utility of the proposed TX, biosignal communication is also demonstrated with the help of a commercial receiver in actual operating scenarios, where the measured bit error rate in FSK mode was < 10-5 for range of 2 m.en_US
dc.language.isoen_USen_US
dc.subject400 MHzen_US
dc.subjectFSKen_US
dc.subjectHealth-monitoringen_US
dc.subjectMedRadioen_US
dc.subjectOOKen_US
dc.subjectSpur-freeen_US
dc.subjectTransmitteren_US
dc.subjectWearableen_US
dc.titleDesign and implementation of 0.23 nJ/bit reference-spur-free FSK/OOK transmitter at 400 MHz for wearable health monitoringen_US
dc.typeArticleen_US
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