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dc.contributor.authorMd. Rubel, Basar
dc.contributor.authorMohd. Fareq, Abd. Malek, Dr.
dc.contributor.authorMohd Iskandar, Mohd Saleh
dc.contributor.authorMohd Shaharom, Idris
dc.contributor.authorKhairudi, Mohd Juni
dc.contributor.authorAzuwa, Ali
dc.contributor.authorNur Adyani, Hj. Mohd Affendi
dc.contributor.authorNuriziani, Hussin
dc.date.accessioned2014-03-19T06:53:05Z
dc.date.available2014-03-19T06:53:05Z
dc.date.issued2013
dc.identifier.citationProgress in Electromagnetics Research, vol. 137, 2013, pages 129-147en_US
dc.identifier.issn1070-4698
dc.identifier.urihttp://www.jpier.org/PIER/pier.php?paper=13011102
dc.identifier.urihttp://dspace.unimap.edu.my:80/dspace/handle/123456789/32861
dc.descriptionLink to publisher's homepage at www.emacademy.orgen_US
dc.description.abstractWireless capsule endoscopy (WCE) was developed as a painless diagnostic tool for endoscopic examination of the gastrointestinal (GI) tract, but, to date, the low operating power of the capsule and the high data rate of the RF telemetry system are still key concerns. Innovative, novel solutions must be developed to address these concerns before WCE can be used extensively in clinical applications. In this paper, we propose a novel RF transmitter for WCE applications that only requires 1.5V to transmit the required data as opposed to using a DC power supply. Our proposed, direct-conversion transmitter system consists of a current reuse oscillator, an envelope filter, and an L-section matching network. The oscillator is powered by the transmitting data which keep the oscillator in turned on and off for the transmitting 1 and 0 bit respectively and results in the on-off keying (OOK) of the modulated signal at the output of the oscillator. The rate of data transmission at the modulated signal is limited by the transient period of the oscillator start-up. When the start-up time of the oscillator is optimized, an OOK modulation rate of 100 Mb/s can be attained. In order to eliminate the oscillator decay noise, we used an envelope filter connected in series with the oscillator to filter out the decay part of the oscillation. Finally, the output impedance of the envelope filter is matched to the 50-Ω antenna with an L-section, low-pass, matching network to ensure maximum power transmission. The entire transmitter system was simulated in a 0.18- μm Complementary metal-oxide-semiconductor (CMOS) process.en_US
dc.language.isoenen_US
dc.publisherEMW Publishingen_US
dc.subjectWireless capsule endoscopy (WCE)en_US
dc.subjectHigh speed imageen_US
dc.subjectData communication systemsen_US
dc.titleA novel, high-speed image transmitter for wireless capsule endoscopyen_US
dc.typeArticleen_US
dc.contributor.urlrubel24434@gmail.comen_US
dc.contributor.urlmfareq@unimap.edu.myen_US
dc.contributor.urlkhairudi@jke.ptss.edu.myen_US
dc.contributor.urlazuwa@unimap.edu.myen_US
dc.contributor.urlnuradyani@unimap.edu.myen_US
dc.contributor.urlnuriziani@unimap.edu.myen_US


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