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Title: Desenvolvimento de uma sonda optoeletrônica de RF em VHF com enlace de fibra óptica polimérica
Other Titles: Development of a RF optoelectronic probe at VHF band with optical fiber link
Keywords: antena loop;  LED;  sonda optoeletrônica;  fibra óptica;  loop antenna;  LED;  optoelectronic probe;  optical fiber
Issue Date: 8-Jun-2011
Abstract: This work aims to develop an optoelectronic sensor that receives RF signals specifically the commercial FM Band, which can be transmitted to places where the signal quality is not acceptable for detection. This work also builds on the resurgence of loop antennas for RF signals capture devices. The work also shows the development in parts of the probe. This RF signal is converted into optical signal beyond Light Emitting Diodes used for optical source and the optical signal is transmitted via PMMA polymer optical fiber. This probe may have different utilities according to the frequency which can be projected. Shows the possibility of the conjugated impedance matching between the device components for a better effiency of the probe. This probe can be improved by the optical source for sources which have better response times increasing the analogic modulation bandwidth, replacing the dieletric materials for the loop antenna and new photodetectors with better response due the new modulation bandwidth
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